NEW MEXICO BUREAU OF GEOLOGY AND MINERAL RESOURCES
lt
Qay2
late
Qpy
Qca
Qay1
QHa
Qpo1
Xmg
QHa
Xmg
28
128
QHa
Qay
Xmg
2
Xmg
68 Qpo 2
Qay
72
Qay
QTsp
Qpy1
QTsp
Xmg
Xmg
6
Xmg
Qpo1
Qpo1b
early
Qpo1a
Xmi
af
Qpo 2
˛m l
72
Qpo2
60
Xd8556
˛m
late
RWP-14
3
75 N
˛s
˛m l
Xp
MW13
Qay
af
af
65
MW14
Qpm 2
55'
QTsp(?)
˛m u
Qay
Qay
Qay2
Qpm 2
˛m
38
64
Xla
62
88
QHa
63
Tsp
31
15
8
2
Qpo1
QHa
˛m l
MW7
Qay2
Qay2
Qay2
Qay2
Qpo
Qay2
QHa
Qpm2
af
Qpm1
Xiv
D
MW1
U
QHa
Qpm1
af
af
3
64
89
34
ar
And + G
f a ult
66
Xqv
Sanch
ez fa
ult
Xmv
Qpa
38
83
Xmv
60
˛m l
Xiv
Xmv
Qay
430 000 FEET (CENTRAL)
R. 4 E.
R. 5 E.
27' 30"
3
3
67
68
Xd
Qpo
3
(BOSQUE PEAK)
˛s
Xiv
87
Xiv
˛m l
1
Qca
˛s
QHa
80
Xmv
76
Xiv
Xiv
70
3
69
70
68
Xmv
Xmv
INDEX TO PREVIOUS
GEOLOGIC MAPPING
Sol Se
Mete
Peak
Overturned anticline — Trace of axial plane showing direction of plunge; dashed where approximately located
.
Overturned syncline— Trace of axial plane showing direction of plunge; dashed where approximately located
.
SANDIA MILITARY
RESERVATION
Mount
Washington
ISLETA PUEBLO
INDIAN RESERVATION
1
MN
0.5
0
25'
231 MILS
0
1000
1
15 MILS
2000
3000
5000
6000
0.5
Well Number: RWP-14
Date Drilled: 1958
Drilling Method: Unknown
Location: SE1/4, SW 1/4, SW1/4, Sec. 12, T.8N. R.4E.
Elevation: 5,810±20 ft (estimate from topographic map)
Depth (feet)
Driller’s Log
Interpretation
0-3
3-40
40-85
85-100
100-140
140-155
155-235
235-370
370-395
395-405
405-415
top soil
caliche and boulders
gray limestone, broken
gray limestone, broken
red clay, sandy
yellow clay
red clay
red clay
red sand
red sand
red clay
piedmont alluvium
(calcic soil?)
0
NEW MEXICO
1 KILOMETER
water
top soil
white shale
gravel and boulders
red shale
red shale and boulders
red rock, hard
boulders
red shale
piedmont alluvium
(calcic soil)
Santa Fe Group
Abo Fm.
160-170
170-205
205-270
270-290
290-297
red shale
red shale
red shale
brown sand
shale
Metamorphic facies isograds (Sil = Sillimanite; And + Gar = Andalusite + Garnet)
MW6
Water-supply well, including number assigned by the New Mexico Office of the State Engineer
MW3
Exploratory soil pits
Cañada Colorada geomorphic surface
Thomas and others (1995)
Cavin (1985)
Parchman (1981)
Notes
Abo Fm.
0-3
3-6
6-65
65-105
105-125
125-145
145-155
155-160
.
Qca
8,000
feet ASL
38
3
72
3
3
73
930 000 FEET (WEST)
74
000m
E.
Rock Unit
1
2
3
4
1,645 ±16 Ma
1,432.1± 4.7 Ma
1,651±42 Ma
1,428± 2.01 Ma
Xmg
Xmv
Xmv
Ygd
Notes
60000m N.
EOD
Hills
7,000'
34° 52' 30"
106° 22' 30”
stop date: 7/9/68
depth to water: 162 ft
Hel ls
Brown, et al. (1999)
Brown, et al. (1999)
Brown, et al. (1999)
Brown, et al. (1999)
Bend in
Cross section A-A'
Coyote
fault
˛s
6,000'
Qpy1
Qpy1
Xmg
˛ml
Xmv
5,000'
Xq
?
34°52'30"
106°22'30"
silicified
thrust
Qpy2
Xmg
Xp
Xla
8,000
feet ASL
˛ml
7,000'
˛s
˛s
˛s
6,000'
Xmg
Xmv
Xmg
Xmg
5,000'
Xmg
Xp
Xp
W
˛ml
˛ml
Qay
Qay
˛s
A'
˛mu
˛ml
˛ml
˛s
Upper
Madera
Canyon
Xmg
Xmg
Xq
n
ny o
Ca
Xp
Xmg
˛ml
˛s
on
Sol Se
Mete
fault
Puerta
fault
˛ml
˛s
Qpo2
Ca ny
ls
Sol Se Mete
Canyon
Malacate
fault
Torre
fault
˛s
Mapping of this quadrangle was funded by a matching-funds grant from the 1997 STATEMAP
program of the National Geologic Mapping Act coordinated by the U.S. Geological Survey
and the New Mexico Bureau of Geology and Mineral Resources (Dr. Peter A. Scholle, Director and
State Geologist; Dr. Paul W. Bauer, Geologic Mapping Program Manager).
Xmg
Xmg
Xq
4,000'
QUADRANGLE LOCATION
toward
away
Faults are dashed where attititudes are uncertain.
B
B'
N
S
10,000
feet ASL
10,000
feet ASL
9,000'
Cross section
A–A'
Manzanita
shear zone
Torre
fault
Malacate
fault
Bend in
Cross Section B-B'
Sol Se
Mete fault
Isleta
shear
zone
North
Canyon
Mount
Washington
Hell’s
Canyon
Wash
Interpretation
Notes
0-4
4-10
10-40
40-65
65-70
70-78
78-91
91-105
105-125
125-155
155-163
163-170
170-175
175-178
178-188
top soil and gravel
gravel
gravel
gravel and boulders
gravel and boulders
limestone
limestone
shale and boulders
limestone
brown shale
gray shale
limestone
limestone
broken limestone
limestone
piedmont alluvium
and
Santa Fe Group
(Qpa-Tsp)
starting date: 10/7/70
9,000'
Hell’s
Canyon
anticline
one-day drilling
one-day drilling
8,000'
˛ml
˛s
Xmg
˛s
˛s
Xmv
˛s
˛s
Xmg
date: 10/19/70
Xla
Xp
Xmi
Xc
Xqv
Xdt
Xmi
Xla
Xlg
Xp
Xmv
Xqv
Xmi
Xp
Xiv
˛ml
˛s
Xmv
˛s
Xmi
Xd
Xdt
6,000'
Xqv
Xqv
Xc
Xmi
Xla
5,000'
Xc
Xq
Xla
Xdt
date: 10/23/70
Xp
4,000'
4,000'
Lithologic Summary of Geophysical Logs, Sandia National Laboratories site,
Kirtland Air Force Base
7,000'
Xp Xdt
Xp
5,000'
water
stop date: 10/30/70
depth to water: 160 ft
flow rater: 20 gpm
extended hole: 1976
depth to water: 188 ft
flow rate: 12 gpm
˛s
Xla
Xdt
Xmg
Xp
Xmv
Madera Fm.
˛s
˛s
7,000'
6,000'
broken limestone
gray shale
Bend in
Cross Section B-B'
8,000'
Driller’s Log
Xmg
Xmv
Xmg
Xmv
Xqv
Xla
3,000'
Xc
3,000'
Xp
Xmg
2,000'
Xmg
2,000'
Xdt
Xla
one-day drilling
one-day drilling
one-day drilling
one-day drilling; water
water at 160 ft (1967);
water at 130 ft (1968)
U-Pb zircon
(hornblende)
40Ar/39Ar (hornblende)
40Ar/39Ar (muscovite)
el
Physiography of the Mount Washington area based upon
10-m USGS DEM data.
Manzanita
shear zone
Tijeras
fault
zone
Arroyo
Coyote
4,000'
Depth (feet)
188-216
216-222
sh
Wa
Reference
Method
40Ar/39Ar
Cross section
B–B'
Xla
Well Number: RWP-29
Date Drilled: 1970 and 1976
Drilling Method: Unknown
Location: SE1/4, SE 1/4, SE1/4, Sec. 18, T.8N. R.5E.
Elevation: 6,010±20 ft (estimate from topographic map)
Yeso Fm.
Interpretation
Dip direction and inclination of tensional mineral vein; double line shows trend (approximate strike)
.
Strike and dip of minor dikes and veins
Qca
Date
UTM GRID AND 1967 MAGNETIC NORTH
DECLINATION AT CENTER OF SHEET
Driller’s Log
Strike and dip of S2 foliation, arrow showing trend and plunge of lineation
70
B'
7000 FEET
NATIONAL GEODETIC VERTICAL DATUM OF 1929
Depth (feet)
Myers and McKay (1970)
Kelley (1977)
2
˛s
Xmv
Locality
E
1 MILE
4000
Colo
ra d a
Table of Geochronologic Samples
A
˛m l
CONTOUR INTERVAL 40 FEET
Horizontal bedding
Entire Quadrangle
QHa
13°
0° 49'
Strike and dip of bedding
.
˛s
GN
1000
o
BERNALILLO CO.
VALENCIA CO.
˛m l
SCALE 1:24,000
Well Number: RWP-24
Date Drilled: 1967 and 1968
Drilling Method: Unknown
Location: SE1/4, SE 1/4, NW1/4, Sec. 26, T.8N. R.4E.
Elevation: 5,730±20 ft (estimate from topographic map)
Strike and dip of S1 foliation, arrow showing trend and plunge of minor F1 fold axis and fold assymmetry in map view
D U
˛s
61
Qca
78
Xd
Xmv
Qca
50 N
16
˛s
71
72
Xmv
ny
Ca
The map has not been reviewed according to New Mexico Bureau of Geology and Mineral Resources standards. Revision of the map is likely because of
the on-going nature of work in the region. The contents of the report and map should not be considered final and complete until reviewed and published by
the New Mexico Bureau of Geology and Mineral Resources. The views and conclusions contained in this document are those of the authors and should not
be interpreted as necessarily representing the official policies, either expressed or implied, of the State of New Mexico and the U.S. Government.
.
The Mount Washington quadrangle lies within the northeastern part of the Isleta Indian Reservation and southeastern sector of the Sandia Military Reservation
(KAFB & SNL); travel within KAFB, SNL and Isleta Reservation is prohibited or locally restricted. The area is not accessible by public roads; however, several
graded dirt and paved roads allow access to portions of the study area. The eastern half lies within the Manzanita Mountains and has very limited road access.
?
82
Qay
70
R?
Xiv
Xmv
Qpa
˛m l
Xqv
74
61
51
Xiv
63
˛m l
˛s
Xmv
Xqv
Summary Table of Driller’s Logs For Water-supply Wells, Isleta Reservation
Fault trace—double barb indicates trace was inferred from degraded topographic scarp
Location of radiometrically dated sample
1
55
3
Xiv
KIRTLAND AIR FORCE BASE
ISLETA PUEBLO INDIAN RESERVATION
Schist and Phyllite — Mottled quartz-rich schist and phyllite with red, hematitic and green fuchsite-rich
(?) zones that occur as discontinuous layers of variable thickness. Schistosity is complexly injected with
lense-shaped quartz pods. Phyllite occurs also in a band of green to reddish green phyllite up to 230 ft
(60 m) thick between two exposures of deformed Manzanita granite. Contacts with the deformed
Manzanita granite at north end of quadrangle are strongly tectonized with interlayering of deformed
granite and green phyllite. Parent rocks for the schist probably consisted of impure quartz-rich siltstones.
This unit includes Coyote Schist and Coyote Phyllite of Cavin (1985), and it may correlate with the Blue
Springs Schist of Reiche (1949).
Xs
A geologic map displays information on the distribution, nature, orientation and age relationships of rock and deposits and the occurrence of structural features.
Geologic and fault contacts are irregular surfaces that form boundaries between different types or ages of units. Data depicted on this geologic quadrangle
map are based on reconnaissance field geologic mapping, compilation of published and unpublished work, and photogeologic interpretation. Locations of
contacts are not surveyed, but are plotted by interpretation of the position of a given contact onto a topographic base map; therefore, the accuracy of contact
locations depends on the scale of mapping and the interpretation of the geologist(s). Any enlargement of this map could cause misunderstanding in the detail
of mapping and may result in erroneous interpretations. Site-specific conditions should be verified by detailed surface mapping or subsurface exploration.
Topographic and cultural changes associated with recent development may not be shown.
4
67
Xqv
Base from U.S. Geological Survey 1954, photorevised 1967
Polyconic projection, 1927 North American datum, 10,000-foot grid based on New
Mexico coordinate system, cental and west zones
1000-meter Universal Transverse Mercator grid ticks, zone 13, shown in blue
62
50
Qay
85
73
Mafic intrusives — Amphibolite, chlorite-schists and gabbroic intrusive rocks. These rocks occur as mthick, discontinuous sills and parallel to the regional fabric although several exposures have apophyses
that cross-cut foliation. Individual sills show transition from undeformed mafic rock in the sill interior to
chlorite schist along sill margins. Parchman (1980) reports that mafic intrusives range from chlorite schists
to amphibolites towards the Manzanita granite. Mafic intrusive parent rocks include basalt and gabbroic
sills.
.
Xmi
COMMENTS TO MAP USERS
?
Xd
Qpo
Fault with inferred complex slip history; older sense of slip listed first.
Overturned bedding
75
Xmv
Xd
Xiv
65
Xd
Qpo
Strike and dip of minor high-angle strike-slip fault (N=normal, R=reverse, D=dextral, S=sinistral; lower case indicates minor
component), plunge and bearing of striations indicated by numbers at half arrow head, sense of slip from reidel shears or
local offset of other features (eg. veins, and pebbles)
68
67
Xiv
Qpm1
QHa
72
3
Minor low-angle thrust fault, number and long axis of "T" indicates plunge and bearing of low-angle striations (local shortening
direction); most thrusts are essentially dip slip
34
82
Xmv
66
2
4
45
Xiv
65
Me
te
C
Sol se Mete
+
Peak
Cañada
80
Xqv
Xd
Xqv
74
?
)
UE
Well exposed fault showing dip direction and inclination. Number with arrow indicates trend and plunge of striations on fault
surface. Letters indicate apparent sense of shear based on orientation of slip lines combined with stratigraphic offset or other
directional indicators, such as riedel shears and fibre steps (N=normal, R=reverse, D=dextral, S=sinistral; lower case indicates
minor component). Striae with rake angles greater than 60°are considered to be essentially dip-slip (ie. normal or reverse).
••
30
62
Normal fault—Showing dip with arrow showing trend and plunge of slickenlines where measurable; solid where exposed; dashed
where approximately located; dotted where concealed; ball-and-bar on downthrown side
.
Syncline— Trace of axial plane showing direction of plunge; dashed where approximately located, dotted where concealed,
queried where inferred
S, n
70
60
Qpo
se
Xd
Xmi
Qpa
1) S
2) R,d?
3) N
2
76 R
l Co y
oyo de
Arr
64
Xqv
Xc
Qpo
4
˛m l
68
82
73
63
QHa
78
78
72
84
Xqv
af
D. J. McCraw and K. E. Coose: digital cartographic production
••
28
70
2
19
Xqv
Xmv
Xd
Xmv
25
Location of geologic cross section
Anticline — Trace of axial plane showing direction of plunge; dashed where approximately located, dotted where concealed,
queried where inferred
24
Xd
78
˛m l
MW11
Reverse fault—teeth on upthrown side of hanging wall block; solid where exposed; dashed where approximately located; dotted
where concealed
58
Xmi
Xqv
75
63
55
R?
Xmv
71
Qca QHa
70
Xiv
Xmv
Geologic contact—solid where exposed, dashed where approximately located, dotted where concealed, queried where inferred
ll
Xmi
Xd
Qpa
Qpa
S. D. Connell: Quaternary mapping and unit descriptions; R. M. Chamberlin: Paleozoic
and younger stratigraphy and structures, unit descriptions, and correlations; K. E.
Karlstrom: Proterozoic mapping with assistance from C. Brown, M. Nyman, W. J. Cavin,
M. A. Parchman, C. Cook, and J. Sterling
E XPLANATION OF M AP S YMBOLS
Xiv
Xd
60
71
38
40
62 N
S,n
68
˛s
82
Xd
2
Q
(L
Xmv
Qay
Xqv
67
Xdt
56
Xd
75
Xd
85
R,d?
81
24
Xqv
Xqv
73
Xmi
70
Xmv
Xmv
70
Xc
˛m l
I
AJ
(T
N
LU )
S SE
O
57
Older Piedmont deposits (Pliocene to Miocene) — Well consolidated, calcium-carbonate cemented,
clast-supported conglomerate and sandstone. Conglomerate clasts are composed of Paleozoic limestone,
schist, greenstone and quartzite with minor reddish-brown (Abo or Yeso Fm.?) sandstone. Limestone clasts
are locally deeply weathered and have an irregular and pitted surface. Overlies tilted Permian strata
of the Abo Fm., Yeso Fm., Glorieta Sandstone, and San Andres Limestone exposed along western
escarpment of the Hubbell Spring fault zone to the west on the adjacent Hubbell Spring quadrangle
(Love et al., 1996). Drill hole data indicate that this deposit primarily overlies Madera Fm. in this
quadrangle. The deposit surface is typically mantled by fine- to medium-grained eolian sand that buries
a complex petrocalcic soil developed in sand. This soil exhibits stage III+ to possibly a degraded stage
V(?) pedogenic carbonate morphology. The top comprises three undivided topographic levels, suggesting
that these deposits have been cut by straths, or that it contains two younger deposits inset against an
older and higher surface. Because of the strongly developed soil and well cemented nature of this deposit,
the hydraulic conductivity of these sediments is probably quite low. Variable thickness, and tends to thicken
to the east to 35 to 100 ft (10.7 to 30.5 m).
Tsp
35
71
76
Xqv
82
Xmv
Qca
72
67
72
Xmi
Qay
QHa
34° 52' 30"
AS 106° 30’
Xmv
72
QHa
Qpo
Qpo
af
af
Qpm2
af
Xiv
Qca
Xqv
67
Xiv
MW9
Qpm 2
Qpm 2
Xc
64
˛m l
˛s
˛m l
yon fault
He l l s Can
ISLETA 12 MI.
PROTEROZOIC
QHa
Qpm1
Qay
Qpo
Qpo
af
Qay
70
68
Xmv
65
˛m l
Qpo
Qay2
Xdt
40
MW8
Qca
Xdt
30
Qpm 2
Xs
Qay2
Qpo
Xmv
Xiv
38
76
62
54
1
Xc
Xiv
Xiv
9
Qpm 2
Qpo
Qay
66
Qpo
Qpa
Tsp
Qpm1
Xc
ll
Xc
106° 30'
35°00'
H
Tsp
Xmi
Xq
Qpo
Qpo2
Qca
1) D,r
2) N
Qpo
Tsp
Qca
Xp
ll
70
64
Thomas, E., Van Hart, D., McKitrick, S., Gillentine, J., Hitchcock, C., Kelson, K. I., Noller, J., and Sawyer, T., 1995, Conceptual
geologic model of the Sandia National Laboratories and Kirtland Airforce Base: Technical Report, Site-Wide Hydrogeologic
Characterization Project Organization 7584, Environmental Restoration Program. Prepared by GRAM, Incorporated,
Albuquerque, New Mexico; and William Lettis and Associates, Oakland, California, Section 2 and Appendix D.
Canyon
Tsp
Qpo
62
Xmv
89
Qca
Qpa
5
Qpo
MW10
RWP-24
QHa
ll
Xla
Xd
Xd
Xdt
Xmv
Qay
Qpo 2
Xdt
68
Xmi
72
56
Tsp
Tsp
Qpm 2
38
Xla
ll
Xdt
QHa
28
53
63
Reiche, P., 1949, Geology of the Manzanita and north Manzano Mountains, New Mexico: Geological Society of America
Bulletin, v. 60, no.7, p. 1183–1212.
go
Lar
Qpm 2
Tsp
Xd
1) S
2) N
Qpo2
Tsp
Qca
Xbg
56
Xp
Xc
QTsp
66
55
Xdt
75
1
˛s
Read, A. S., Allen, B. D., Osburn, G. R.,Ferguson, C. A., and Chamberlin, R. M., 1998, Geology of the Sedillo 7.5-minute
quadrangle, Bernalillo County, New Mexico: New Mexico Bureau of Mines and Mineral Resources, Open-file Geologic
Map OF-GM 20, scale 1:24,000.
.
Diorite — Diabase, diorite and quartz diorite that occur within the greenstone and metatuff units and are
grouped together based on lithologic similarity and field occurrence. These three rock units occur as
small, poorly-exposed intrusive bodies some of which have a sill-like outcrop pattern. Where observed
in outcrop these lithologies have a blocky, massive appearance with a brown to red-brown weathered
surfaces. Fresh samples show an aphanitic texture with rare plagioclase feldspar laths that are occasionally
aligned perhaps defining an original flow texture. Local schistosity is developed in some exposures and
is parallel to regional structures.
Xd
Younger piedmont deposits (lower Pleistocene to upper Pliocene) — Well consolidated, calciumcarbonate cemented sandstone and conglomerate inset against unit Tsp. Unit is poorly exposed and
slopes to the west where it is cut by the Hubbell Spring fault zone. The deposit surface is moderately
dissected and locally exposes partially stripped soils with stage IV pedogenic carbonate morphology.
Deposit tops may locally contain pediments or straths cut into older deposits of Tsp in Cañada Colorada.
Base is not exposed, but is estimated to range from 0 to at least 30 ft (0-9 m) in thickness.
.
66
Xmv
74
˛s
32
Qpo
Qpa
N, s
75
Parchman, M. A., 1981, Precambrian geology of the Hell Canyon area, Manzano Mountains, New Mexico: [M.S. thesis],
University of New Mexico, Albuquerque, NM, 108 p.
Biotite granite — Occurs in dikes and irregular shaped intrusions. This unit is light pink to pinkish gray
with granitic textures and minor development of a tectonic fabric. Foliation in these rocks is defined by
a weak alignment of chlorite and elongate quartz grains. Includes quartz monzonite of Parchman (1980)
and large outcrops at NW corner of quadrangle that may correlate with the Cibola granite.
.
Santa Fe Group
24
?
Myers, D. A., and McKay, E. J., 1976, Geologic map of the north end of the Manzano Mountains, Tijeras and Sedillo
quadrangles, Bernalillo County, New Mexico: U.S. Geological Survey Miscellaneous Investigations Series, I-968, scale
1:24,000.
Leucocratic granite, aplite and pegmatite — Irregular pods (dikes) within the Manzanita granite and
greenstone unit. Both pods and dikes are frequently parallel to local tectonic fabrics. Aplite occurs as
white to reddish-white fine grained rock with mm-size phenocrysts of quartz and K-feldspar in a finegrained matrix. Certain bodies of aplite have a strong lineation and no foliation. Pegmatite has similar
outcrop pattern as aplite but occurs more generally in m-size dikes and sills. Pegmatite consists of cm-size
K-feldspar phenocrysts and irregular stringers of quartz and minor plagioclase feldspar. Probably represents
evolved units of Manzanita granite.
Xlg
4
73 N
60
Qay
Xmi
Xla
Qpo2
Xiv
Myers, D. A., and McKay, E. J., 1970, Geologic map of the Mount Washington Quadrangle, Bernalillo and Valencia
Counties, New Mexico: U.S. Geological Survey Geologic Quadrangle Map GQ 886, scale 1:24,000.
.
10
3
?
Myers, D. A., 1973, The upper Paleozoic Madera Group in the Manzano Mountains, New Mexico: U.S. Geological Survey
Bulletin 1372-F, 13 p.
Manzanita Granite — A homogenous quartz monzonite with 1-4 cm K-feldspar euhedral phenocrysts.
In zones of stronger deformation K-feldspar porphyroclasts have an oval shape and show dynamic
recrystallization and grain size reduction along margins. Foliation and lineation are variably developed
in the granite with zones of well-develop L-S fabrics that grade into undeformed granite. Other zones
contain a strong linear element and lack any planar tectonic fabric. Manzanita granite shows a gradational
contact along the northern boundary into a strongly deformed, reddish-orange, fine grained foliated felsic
rock that Cavin (1985) named metarhyolite but which is interpreted here as mylonitic Manzanita granite.
Foliation is defined by elongate quartz grains, ovoid shaped K-feldspar and aligned muscovite grains
and is parallel to lithologic contacts. Mineral lineations are defined by elongate quartz grains and aligned
muscovite and is commonly down dip. Asymmetric K-feldspar porphyroclasts and shear bands within the
deformed granite record north-directed thrusting. U-Pb dating of zircons indicates an age of 1,645 ± 16
Ma for this unit (Brown, et al., 1999).
Xmg
Xbg
55'
Love, D. W., Hitchcock, C., Thomas, E., Kelson, K., Van Hart, D., Cather, S., Chamberlin, R. M., Anderson, O. J., Hawley, J.
W., Gillentine, J., White,W., Noller, J., Sawyer, T., Nyman, M., and HarrisonJ. B. J., 1996, Geology of the Hubbell Spring
7.5-minute quadrangle, Bernalillo and Valencia Counties, New Mexico: New Mexico Bureau of Mines and Mineral
Resources, Open-file Geologic Map OF-GM 4, scale 1:24,000.
Quartz veins — Veins and veinlets of massive, milky-white quartz generally parallel to the regional fabric
although smaller veinlets (0.8–2 in; 2-5 cm) locally cross cut the fabric. In some locations, thin quartz
veinlets are folded with the main fabric as axial plane. Mappable quartz veins consist of white quartz
with minor hematite and brown calcite.
Xqv
Piedmont alluvial deposits, undivided (Holocene to middle Pleistocene) — Undivided deposits of
Qpy, Qpm, and Qpo underlying most of piedmont slope south of Hells Canyon Wash.
.
Qpa
Karlstrom, K. E., Connell, S. D., Ferguson, C. A., Read, A. S., Osburn, G. R., Kirby, E., Abbott, J., Hitchcock, C., Kelson, K.,
Noller, J., Sawyer, T., Ralser, S., Love, D. W., Nyman, M., and Bauer, P. W., 1994, Geology of the Tijeras 7.5-minute
quadrangle, Bernalillo County, New Mexico: New Mexico Bureau of Mines and Mineral Resources, Open-file Geologic
Map OF-GM 4, scale 1:24,000.
.
Paleoproterozoic igneous rocks
˛m l
Xmv
45
Xmi
12
52
Xmi
63
Xd
Xla
QTsp?
Xmi
81
50
65
Qca
Xmv
Xdt
Older subunit (middle Pleistocene) — Forms rounded hills with partially stripped calcic soils.
Inset against units QTsp and Tsp. Locally contains two subunits that are recognized by inset
topographic relations near the mouth of Cañada Colorada.
Connolly, J. R., 1981, Geology of the Precambrian rocks of Tijeras Canyon, Bernalillo County, New Mexico: [M.S. thesis],
University of New Mexico, Albuquerque, NM, 147 p.
Granitic to rhyolitic dike — Light gray granite porphyry dike about 23 ft (6 m)a thick with flow-banded
rhyolitic margins about 2.3 ft (0.6 m) thick. Appears to parallel regional foliations of adjacent metasedimentary
rocks; pinches out to NE along strike. Contains medium to coarse phenocrysts of quartz, K-feldspar, albite
and minor muscovite plus biotite in a chalky (partly kaolinized?) groundmass of similar mineralogy.
Muscovite yields 40Ar/39Ar plateau age of 1,428 ± 2 Ma (M. Heizler, New Mexico Geochronology
Research Lab, written communication,1997), which is interpreted as the cooling age of the dike. Dike
post-dates regional metamorphism and associated ductile deformation.
Ygd
Qpo1b
38
Xmv
66
Xp
Qpo1
˛s
Xmi
50
Xmi
56
52
Xmi
Qpo 2
Xiv
Xmv
Qpo2
Younger subunit (middle Pleistocene) — Forms rounded hills with partially stripped calcic soils.
Inset against units Qpo1and Tsp.
.
Qpo1a
Qca
67
Xmi
Xbg
78
D
˛m l
64
63
Xla
Xmi
Qpo1
U
Xmi
55
74
Qca
af
MW15
Qay
Qca
10
64
Xla
Xqv
Xp
Xdt
61
50
17
Tsp
Xmg
••
82
61
Xmi
Xmi
Qay
lt
59
79
78
Qpm 2
fau
62
74
64
Qay
Qpm 2
Xlg
70
60
69
˛s
75
2
Xc
71
˛m l
38
75 N
62
Xmi
Xqv
Qay
1 420 000 FEET
(CENTRAL)
Xqv
50
72
Xqv
Xc
Ygd
~1600
30
Xmi
46
Xp
Xla
ada
MW16
~900
74
Xp
Xmi
˛m l
QHa
2
58
Xmi
Qay
Tsp
Xla
Xmi
Xmi
Xp
Xp
lor
Qpm1
Qay
Xc
Xmi
58
46
Qpm2
Co
MW17
˛m l
81
48
66
Xc
Xla
55
Qpm 2
60
38
Xmi
Xc
˛ml
Qpm 2
Xc
44
72
61
1
88
50
Xc
RWP-29
65
Xp
Xla
Xp
73
65
73
Qay
Xp
66
Qca
4
Xmi
64
Xla
50
Xp 72
72
Xla
Qpm1
Xla
Xmi
Xmi
65
Xp
Xmi
af
ISLETA 11 MI.
323
28
66
Qpm 2
MW3
Qay
˛s
Xp Ygd
Xdt?
Xq
Xq
Xp
Xp
QHa
55
62
Xq
MW2
QTsp(?)
Tsp
˛m l
Xmi
Xq
42
68
76
Xmi Xc
af
Qay2
58
66
Connell, S. D., Cather, S. M., Ilg, B., Karlstrom, K. E., Menne, B., Picha, M., Andronicus, C., Read, A. S., Bauer, P. W., and
Johnson, P. S., 1995, Geology of the Placitas and Bernalillo 7.5-minute quadrangles, Sandoval County, New Mexico:
New Mexico Bureau of Mines and Mineral Resources, Open-file Geologic Map OF-GM 2 and 16, scale 1:24,000.
yon
an
Pay
Xmi
Xmi
55
Xp Xla Xmi
Xp
Ygd
Xla
Qpm1
Qay
38
57
54
80
70
Xla
73
Qay
Qpm1
63
61
68
80
Xmi
56
˛m l
˛s
Xq
62
Xla
43
Qca
248
Xp
85 Xq
Qpm1
QHa
64
Xmi
70
3
˛s
Cavin, W. J., 1985, Precambrian geology of the northern Manzanita Mountains, Bernalillo County, New Mexico: [M.S.
thesis], University of New Mexico, Albuquerque, NM, 144 p.
So l
23.7
Xmi
63
65
76 N
Xmi
Xp
MW12
Qpo1a
63
71
Xmi
Xmi
Xmi
Qpo
Brown, C. L., Karlstrom, K. E., Heizler, M. T., and Unruh, D., 1999, Paleoproterozoic deformation, metamorphism, and
40Ar/39Ar thermal history of the 1.65 Ga Manzanita pluton, Manzanita Mountains, New Mexico: New Mexico
Geological Society, 50th Field Conference Guidebook, p. 255-268.
PROTEROZOIC ROCKS
Mesoproterozoic igneous rocks
Older piedmont alluvium, undivided (middle Pleistocene) — Poorly to moderately consolidated,
slightly calcium-carbonate cemented sandstone and cobble to pebbly conglomerate inset against unit
QTsp. Unit grades to the west where it is cut by the Hubbell Springs fault zone (Love et al., 1996). Deposits
are poorly exposed and locally posess multiple buried soils that are partially stripped and exhibit stage
III (IV in gravel) pedogenic carbonate morphology. The deposit surface (top) is moderately dissected
and forms rounded hillslopes that sit about 20 to 38 ft (5 to 10 m) above local base level. Unit is buried
and locally inset by units Qpm and Qay. Deposits are possibly correlative to P4 of Thomas et al. (1995),
which has a radiocarbon date of about 51,000 yr BP; however much of this unit is likely much older than
51 Ka. It is also likely correlative to uppermost Santa Fe Group strata to the west in the Hubbell Springs
quadrangle, where similar piedmont deposits interfinger with early Pleistocene fluvial deposits of the
ancestral Rio Grande (Love et al., 1996). Unit is locally differentiated into two subunits on the basis of
inset relationships. The base is not exposed in the quadrangle, but deposits are estimated between 030 ft (0-9 m) in thickness.
18
Xq
Xqv
60
Xq
59
Older subunit (middle Pleistocene) — Forms elongate valley-border fans about 27 to 32 ft (7
to 8.5 m) above local base level. Inset against unit Qpo.
Qca
fault
Miocene
Xq
76
Xmi
Qpo 2
70
Xq
65
QHa
64
47
59
Qpm1
REFERENCES
yon
anyo
M ad e r a C
38
Xmi
Qpm2
Younger subunit (middle Pleistocene) — Forms low terraces about 13 to 15 ft (3.5 to 4 m)
above local base level. Inset against unit Qpm1.
.
Xc
Xq
Xla
?
4
U
D
64
84
Xmi
Xmi
Qay
56
58
Xq
Qpy2
Qay
Qpm 2
Xmi
Xla
Xla
Xq
˛m l
Qay
Tmi
Xmi
Xq
Xmi
faul
t
early
Xla
Xq
Xmi
69
73
23
Xla
65
Xq
?
60
57
Xla
˛s
70 N
65
N
Xmi
Xq
Xq
Xla
Qay
68
Xq
Xq
˛s
?
? Tmi
Xmi
Xmi
Xmi
Xmi
Xla
66
?
3
67
74
Xla
73
N
yon
Hells Can
Qpm 2
Qpo1a
5.3
PALEOZOIC
23
2
Qpm 2
Tsp
65
65
73
Qpo1a
Qpo1b
79
+
Xq
Xq
Gar
Older subunit (upper Pleistocene) — Forms broad alluvial fan deposits that are inset against
unit Qpo. Soils exhibit stage I to strong stage II pedogenic carbonate morphology. Unit is correlative
to Pf5 of Thomas et al. (1995), which contains charcoal that was radiocarbon dated at about
21,000 yr BP (Thomas et al., 1995, p. 2-36).
.
Middle piedmont alluvium, undivided (middle Pleistocene) — Moderately consolidated pebble and
cobble gravel and sand. The deposit contains multiple buried paleosols with Bk horizons that exhibit
stage II and III pedogenic carbonate morphology. Unit forms slightly to moderately dissected and
abandoned valley floors inset against unit Qpo. Qay locally mantles unitin narrow to broad swales.
Divided into two subunits (Qpm2 and Qpm1) on the basis of inset relations. Thickness is variable from
0-30 ft (0-9 m).
22
˛m l
?
64
˛m l
Cu
Xla
fa eva
ul
t Qca
10
68 N
67 N
Qca
?
And
Xmi
Qca
Qca
60
Xla
Qpm 2
75
65
60
˛s
Qay
Qpo1b
45
Xmi
Xq
Xla
74
Xmi
Qay
˛m l
Xmi
75
3
˛s
Xq
Xmi
˛s
73
Xp
MW5
3
58
?
?
70
Xmv
Xbg
Xp
65 N
1
76
Qpo1
QTsp
66
Xp
Xla Xmi 46
79
71
60
50
Xmi
Xmi
Xla
15
2
45
?
Xdt
8
Qpm
Xla
Xla
50
79
36
Xla
65 N,d
Xmv
Xla
4
˛s
˛s
61
2
Qpy1
68
56
45
65 Xmv
33 Xbg
73
59
Xp
81
Xmv
Xla
Tmi
3
Sil
˛s
Xlg 53
r
And + Ga
Xp
Xp
D
70
84
Xbg
Xla
38
Qay
35
Younger subunit (Holocene to upper Pleistocene) — Forms broad range-front alluvial fan
deposits, exhibiting stage I and II pedogenic carbonate morphology. Unit is correlative to P6 of
Thomas et al. (1995).
.
Qpy2
˛m l
41
36
46
Xmi
82
47
35
50 75
66
Qpo1
U
Xp
44
Xp
Xmg
2
30
47
49
T. 8 N.
Qca
64
Xmg
53
70 N
Xp
2
46
Xmg
39
41
Xd
Qay
Qay2
Pliocene
S il
˛m l
55
55
Xlg
˛m l
48
72 N
Xmi
Xlg
Xla
Xmg
Xmg
˛s
T. 9 N.
Mafic metavolcanic rocks — Heterogeneous metavolcanic unit composed of basaltic greenstones,
intermediate volcanics, volcaniclastic greenschists (quartz-actinolite-chlorite schists) and metapelites. Rare
epidote-rich bands are present in some areas and may denote margins of metamorphosed pillows. Other
primary features include compositional layering defined by white, plagioclase(?)-rich layers that are
parallel to foliation and plagioclase-phenocrystic volcanic rocks. Unit grades upwards to volcaniclastic
rocks (Xdt) and is interlayered with mappable units of felsic to intermediate volcanic rocks (Xiv and Xdt).
Unit includes Coyote greenstone and Isleta greenstone of Cavin (1985) and the lower part of Tijeras
greenstone of Connolly (1981).
Xmv
Sandia Formation — Mostly slope-forming shales and siltstones grading down into basal quartz pebble
conglomerates and up into thin bedded limestones. Limestones and shales occur in uppermost 20 ft (7
m) near gradational contact into overlying cliff-forming limestones of Madera Formation and are distinct
due to the fact that they are typically thinner-bedded, clast-supported, greenish, and contain abundant
siliciclastic material. Well indurated (siliceous) basal quartz pebble conglomerates are thickest (20–40
ft; 6–12 m) in northwestern third of quadrangle and generally thin to low ledge-forming conglomerates
(3.5–7.5 ft;1–2 m thick) and sandstones in southeast quadrant. Sparse metamorphic and limestone
pebbles or shell fragments are locally present in thinner (lower energy?) basal zones (e.g. NE1/4 sec. 7,
T8N, R5E). Light gray to yellowish brown conglomerates of basal zone grade upward into yellowish
brown, gray and greenish gray sandstones and micaceous siltstones interbedded with yellowish brown,
gray and black shales or carbonaceous shales. Medial shaley zone is 100–150 ft (30–45 m) thick and
commonly mantled with blocky limestone colluvium (generally not mapped) derived from overlying
Madera Formation. Where locally well exposed along road to Sol se Mete Peak, medial shales also
contain a thin red siltstone that may represent an ancient subaerial weathering zone. Conglomeratic
sandstones are unusually abundant in medial to upper section about 0.25 mi north of HERTF site and
one mile south of USGS Seismic Laboratory (NE1/4, Sec. 30, T9N, R5E; and SE1/4 Sec. 7, T8N, R5E).
Average thickness is 200 ft (60 m); ranges from about 80–300 ft (24–90 m).
.
˛s
Younger piedmont alluvium, undivided (Holocene to upper Pleistocene) — Unconsolidated gravel
and sand associated with broad, slightly dissected mountain-front alluvial fans. Inset against piedmont
alluvium (Qpm) and dissected by younger stream deposits (QHa). Deposit surface (top) is moderately
dissected and exhibits well developed to subdued bar-and-swale topography. Soils possess Stage I to
II pedogenic carbonate morphology and weakly to moderately developed clay films. Generally correlative
to units H7-P5 of Thomas et al. (1995). Divided into two subunits (Qpy2 and Qpy1) on the basis of inset
relations and soil development. Unit is correlative to Qay. Variable thickness from 0-30 ft (0-9 m).
Qpy
Qca
Qpo1
Qpo1
Qpo1
47
60
32
43
3
QTsp
82
QHa
50
Xmg
˛s
?
46
54 48
51
Xmg 67
87 Xmi63
43
QHa
(HUBBELL SPRING)
Qpo
38
••
78 R,d?
Qca
40
Monzanit a
CENOZOIC
Qpo1
Qpo 2
Qpo1
Qpo2
MW6
A'
5
50
Xlg
Xmg
? Qay
Qpy1
˛m l
Qay
A
2
62
Xlg
Qpo1
Xmg
3
Paleoproterozoic
˛m l
40
67
Xmv
Qpo 2
Xmg
56
17
Qay
Mesoproterozoic
45
?
30
Xmg
1
QHa
QHa
Mete
fault
38
Qpo 2
Pennsylvanian
˛mu
42
40
34
69
1
˛s
48
?
70
37
38
˛m l
1
74
Qpy1
50
Qpy1
MW-2
Qpa
?
˛m l
57' 30"
˛mu
˛m l
1) D
2) N
45
Qpo1
˛m
Qay
Qpo1
3
6
f
30
50
Sol S
e
middle
QHa
Qpo1
290
o
12
?
Qay
Qpm1
Permian
70
Typically contains poorly to moderately sorted and stratified, clast- and matrix-supported sand and gravel with minor muddy
sand interbeds associated with coalescent range-front alluvial fans along the Manzanita and Manzano Mountains. Deposits
unconformably overlie Santa Fe Group deposits and older rocks, and are differentiated on the basis of inset relationships
and soil-morphology.
˛s
38
25
MW-9
Pleistocene
Xmg
Qpo1
˛m
Qpm
1.8 Ma
Xmg
QHa
Xmg
39
55 N,d
45
Qpm2
MW-13
780
˛m
Piedmont-slope Alluvium
38
38
?
Qay1
1
2
17 D,n
90 44 R,s
62
28
˛mu
Intermediate metavolcanics rocks — Buff, schistose bands intimately interfingered with the greenstone
(Xmv) and metatuff (Xmt) units. This unit also defines broad, regional folds. Lithologies within this unit
consists of a mixture of volcaniclastic rocks including quartz-mica phyllites and volcanic rocks with an
andesitic composition (Parchman, 1980). In outcrop this unit has a brown to gray-green color with a
moderately well-developed schistosity.
Xiv
Madera Formation, lower gray cherty fossiliferous limestone — Mostly cliff-forming, gray
fossiliferous limestone with minor interbedded shales and quartzose to feldspathic sandstones and
conglomeratic sandstones. Individual massive to nodular limestone beds are commonly 20–30
feet (3–9 m) thick and may be as much as 60 feet (18 m) thick. Irregular masses of black to reddish
orange chert are common in massive limestone beds. Nodular limestones often weather to mottled
gray and brown surfaces. Limestones are interbedded with light to dark gray and yellowish brown
shales, nodular shales and yellowish brown to greenish gray siltstones that are often micaceous.
Siltstones locally grade upward into lenticular to tabular quartz arenites and quartz pebble
conglomerates of light gray to yellowish brown color. Clastic units locally contain silicified wood.
Includes Los Moyos Limestone and overlying Sol se Mete Member of Wild Cow Formation of
Myers (1973), or ˛ml and ˛mub of Myers and McKay (1970). Approximate thickness 500 to
800 feet (150–240 m).
˛m l
54
60
70
Xmg
70
Qca
Xlg
Qpy1
75
Xlg
Xmg
38
50
Se
Qpy1
Younger subunit (Holocene) — Stream terraces deposits about 5 m above local base level and
adjacent to modern and historic channels. Contains weakly developed soils. Locally forms two
undivided terraces.
.
Older subunit (upper Pleistocene) — Stream terraces deposits about 11 m above local base
level. Inset against unit Qpo. Correlative to P5, which has radiocarbon date of about 21,000 yr
BP (Thomas et al., 1995).
Qay2
˛m l
5 70
D,n
Xlg
˛s
Qpy1
˛m
R?
˛mu
52-73
N
fa
?
Qpy1
54
˛m
˛m l
8
Qpy1
Qpy1
Xlg
Qay
QHa
2
˛s
34
QHa
47
Qpy1
?
2
36
3
Qay 2
QHa
af
Qay 2
38
Xmg
Xmg
T.8 N.
Qpy1
61N
˛s
QHa
˛m
57
6
Xmg
44
83 N,S
˛s
59
N 12
˛m
QHa
T.9 N.
37
Qpy1
Xlg
44
47
54 41 Xlg
40
Xmg
TRS1
˛s
lt
au
Qay
Xlg
Qpo1
Qpy1
57' 30"
Qpy2
Qca
Ti r
10
Qpy1
QHa
1
˛m l
4
50
42
D U
21
4
Xmg
67
Xlg
1
1
56 N
28
66
S,n
Qay
A'
Madera Formation, upper arkosic limestone — A gray, greenish-gray, olive-gray, tan and buffbrown fossiliferous limestone (comprises slightly more than half of member) interbedded with
intervals of sub-arkosic sandstone and mudstone; mostly slope to ledge forming. Yellowish to reddish
brown and light gray arkosic to feldspathic sandstones and conglomeratic sandstones are lenticular
and grade into pale yellow brown, gray and purplish gray mudstones and micaceous siltstones.
These arkosic sandstones are typically coarse- to medium-grained and often contain granules and
pebbles. The base of this member is defined as the first occurrence of a thick and relatively continuous
arkosic sandstone bed. Silicified wood is seen locally in clastic beds throughout this member. Red
muddy soils are common on the upper arkosic member. Generally equivalent to Pine Shadow and
La Casa Members of Wild Cow Formation of Myers (1973) or ˛muc and ˛mud of Myers and
McKay (1970). As much as 400 ft (120 m) thick, with erosional top.
˛mu
Younger stream alluvium (Holocene to uppermost Pleistocene) — Light-brown and light reddishbrown to gray-brown, poorly consolidated pebble and cobble gravel and sand with minor accumulations
of boulders and silt- to clay-rich beds. Gravel are subangular to subrounded and composed of limestone,
greenstone, metamorphic, and granite clasts. Clast surfaces are typically unweathered and are not pitted,
except along Cañada Colorada. Soil development is variable, often ranging from weakly developed
soils with stage I pedogenic carbonate morphology overlying multiple buried soils with stage II and III
morphology. Unit forms broad valley floors and terraces inset against unit Qpo. Bar and swale topography
is locally well expressed. Divided into two subunits on the basis of inset relations. Contains interbedded
calcareous spring deposits near springs in Coyote Canyon. Correlative to H7 and P5-6 of Thomas et al.
(1995). Variable thickness estimated between 0-10 ft (0-3 m).
Dacite tuff — Gray to light grayish green dacite metatuff with a well-developed schistosity. Major parts
of this unit contains flattened ovoid shaped fragments of light gray to buff phyllite, chlorite phyllite, chert,
metaquartzite and greenstone. These fragments range in size from 1.5 to 12 in (4 to 30 cm) and are
aligned parallel with the schistosity. Towards the gradational contact with the metasedimentary unit the
metatuff contains abundant (up to 80%) blue to blue-gray phyllite fragments. The matrix of the metatuff
is fine grained, gray to greenish gray. The metatuff is interpreted to be the metamorphic equivalent of a
crystal and vitric-crystal tuff that is dominantly dacite with minor andesite. Includes the Lacorocah metatuff
of Parchman (1980).
Xdt
Bon
ito
C a ny
on
McCORMICK RANCH 4.3 MI.
fau
Xmg
Qpy1
TRN-1
3
41
47
Qpy1
af
QHa
Holocene
Xlg
KAFB 1901
QHa
10
74
Qpy1
Xlg
51
71
2
63
Xmg
Qpy1
QHa
˛m l
Qay
38
Qca
59 58
Xmg
QHa
QHa
QHa
1) S
2) N
˛s
Qca
3
˛m
Youngest stream alluvium, undivided (Historic to upper Holocene) — Poorly consolidated pebbleto cobble conglomerate and fine- to coarse-grained sand with minor accumulations of boulders and siltto clay-rich beds. Unit underlies modern arroyos and forms very narrow valley floors with discontinuous
elongated boulder and cobble bars. Unit is inset against younger stream alluvium (Qay). Soils are weakly
developed and possess disseminated to no pedogenic carbonate. Deposit in low terrace near mouth of
Hells Canyon Wash contains charcoal dated at 1,220 ± 60 yr BP. Locally contains a higher undivided
terrace. Correlative to H8 and H9 of Thomas et al. (1995). Base is not exposed west of the mountain
front. Variable thickness, probably ranging from 0-10 ft (0-3 m).
QHa
13
4
˛s
55
30
72 N
5
?
Xlg
45
HERTF
?
80
Xlg
˛mu
˛s
3
56 N,s
Xlg
Xmg 59
˛s
Qay2
38
38
Xlg
Xlg
39
Xlg
43
52
Xlg
af
46
Xlg
54
31
70
Basin Fill & Other
Xlg
37
Qpy1
0 ka
QHa
33
Qca
65
Xmg
Xlg
60
Qpy2
Qpy1
?
32
˛s
36
24
QHa
U NITS
Piedmont Slope
Qpy2
Xlg
Qpy1
2
NS
QHa
da
ora
38
45
Qpy1
Col
Mexico Bureau of Geology and Mineral Resources, Socorro, NM 87801
of Earth and Planetary Sciences, University of New Mexico, Albuquerque, NM 87131
3 New Mexico Bureau of Geology and Mineral Resources, Albuquerque Office, Albuquerque, NM 87106
4 Graduate Students, Dept. of Earth and Planetary Sciences, Univ. of New Mexico, Albuquerque, NM 87131
5 William Lettis & Associates, Inc., 1777 Botelho Dr., Ste. 262, Walnut Creek, CA 94596
Xlg
59
Qpy1
71
˛m l
˛s
38
Qpy1
38
Qca
MANZANITA M
OUNTAI
Qpy1
Xlg
63
80
74
Qpy2
Qpy1
QHa
3
14
87
N
Xc
Madera Formation, undivided — Two informal members, an arkosic limestone and a gray limestone,
are recognized but not differentiated. The upper and lower members are respectively generally correlative
to the Wild Cow Formation and Los Moyos Limestone (Formation) of the Madera Group of Myers and
McKay (1976). These informal member names are used because the units were lithostratigraphically
defined on the Sedillo (Read et al., 1998) and Tijeras (Karlstrom et al., 1994) 7.5-minute quadrangles
rather than biostratigraphically defined and may therefore not strictly correlate with the units defined by
Myers and McKay (1976). The Madera Group nomenclature was not used because of the gradational
contacts between members and the difficulty of distinguishing these contacts in the field.
.
n
Qpy1
˛m l
Upper and Middle Pennsylvanian
M
t. W
as
hi
ng
to
n
10
˛m
4563 N
68
35
45
42
˛m
72
25
Xlg
fault
˛m l
1 450 000 FEET
(WEST)
˛s
30
Qpy1
˛m l
38
No
rth
Qay
˛s
1
5
Qpy1
Qay
Typically contains poorly to well sorted and stratified, clast- and matrix-supported sand and gravel with minor muddy sand
interbeds associated with modern and late Pleistocene entrenched arroyos and streams originating in the Manzanita and
Manzano Mountains. Deposits unconformably overlie Santa Fe Group deposits and older rocks, and are differentiated on
the basis of inset relationships and soil-morphology.
.
.
e
Qpy1
˛m
Xmg
3
˛mu ?
Phyllite and schist — Occurs as interlayered and gradational with the lithic arenite but has been mapped
as a separate unit in several zones where it constitutes greater than 90% of the exposure. This unit also
occurs throughout the metasedimentary unit (Xla) as <20 ft (<5 m) thick beds that were too small to map
as individual units. This unit consists of blue to light grayish green phyllite that become more schistose
and massive in exposures closer to the Manzanita granite. Parent rocks for this lithology were siltstones.
.
Metachert and Jasperoid — Occur as prominent, low-lying outcrops infolded and interlayered with
the metavolcanic, the metasedimentary, and the blue phyllite unit. These layers range from several cm
to m thickness and are discontinuous along strike frequently pinching off within phyllitic layers or adjacent
to chlorite-rich amphibolites. This unit varies from white to hematite-stained quartz-rich sediment with
narrow miceous zones parallel to local foliation. Jasperoids consist of red-stained, discontinuous pods
of jasper. This unit marks the transition from volcanic to clastic deposition.
Xp
ot
QHa
Xmg
˛s
7
Stream-valley Alluvium
1 450 000 FEET
(CENTRAL)
Lithic arenite — A variety of metasedimentary rocks including metawacke, meta-arkose and impure
metaquartzite. Up to 50% of this unit is a brown weathered impure arkosic metaquartzite with light green
to gray fresh surfaces. Schistosity is variably developed throughout most of the unit and appears to be
better developed towards the contact with the Manzanita granite. Compositional layering (S0) is variably
preserved and is generally at low angles to the dominant schistosity (S1). Metamorphic grade and field
appearance of this unit varies towards the Manzanita granite suggesting development of a contact
aureole associated with granite emplacement. Away from the Mazanita granite metasedimentary rocks
have a granular appearance with a weak foliation. Samples of metasediments near the Manzanita granite
are granoblastic hornfels with porphyroblasts of andalusite, sillimanite, kyanite and garnet. Schists and
slates are also more evident closer to the Manzanita granite contact.
Xla
Abo and Yeso Formations, undivided — The lower two lithostratigraphic units of the Permian represent
a red-colored feldspathic to quartzose siliciclastic sequence that are recognized in the subsurface only.
The Yeso Formation is a yellowish brown, orangish brown, and reddish brown sandstone and shale with
interbedded gray limestones. The sandstones are typically cross-stratified and/or cross-laminated and
virtually identical to those within the underlying Abo formation except that, rarely, salt hopper casts and
molds are present. The Abo Formation is a red and locally tan-colored (particularly near the base),
medium- and thin-bedded arkose and feldspathic sandstone and comglomeritic sandstone interbedded
with red, micaceous siltstone, mudstone, and shale, commonly with green reduction spots. The lowermost
arkoses are typically lighter-colored and coarser-grained than the younger feldspathic sandstones, and
at least one of them is strongly bioturbated (Macaronichnus).
Pay
Travertine and spring deposits (Pleistocene) — Light-gray massive constructional mounds of travertine
interlayered with quartzite breccia near Coyote Springs (N1/2, Sec. 24, T9N, R4E). Variable thickness,
ranging from 3-30 ft (1-10 m).
Qtr
4.9 MI. TO NM 10
14
˛m
Qpy1
˛m l
1) S
2) N
38
13
15
˛s
˛m l
Qpy2
?
Radio
Tower
Xmg
10
2
Xmg
Qca
˛s
Xmg
2
14
73
˛m l
45
(ESCABOSA)
Qpy1
R?
Xmg
Qca
3
Xs
ESCABOSA 7.6 MI.
24
30
˛ml
2 Department
46
45
8
2
44
af
2
61 N
H ells Canyon fau
lt
3
Xmg
2
2
Qpo 2
Xmg
55 N
40
Qca
˛s
Quartzite — Massive to thickly-bedded, gray- to milky white quartzite. Original bedding in the quartzite
consists of 0.04–0.2 in- (1-5 mm-) thick black and red hematite-rich layers. Cross bedding is locally
preserved. Interlayered with the quartzite are greenish-gray micaceous quartzite, that contain up to 35%
muscovite and chlorite. Protolith for the thickly bedded quartzite was pure quartzose sands intermixed
with impure sandstones and siltstones. Includes the Cerro Pelon and Coyote quartzites of Cavin (1985).
Xq
PALEOZOIC ROCKS
Lower Permian
Colluvium and alluvium, undivided (Holocene to upper-middle Pleistocene) — Poorly consolidated,
poorly sorted and stratified, fine- to coarse-grained, clast- and matrix-supported deposits derived from a
variety of mass-movement hill slope processes, including debris flow, shallow slump and creep. Gravel
clasts are typically angular to subangular and composition reflects local provenance. Soils locally exhibit
Stage I to III pedogenic carbonate morphology. Differentiated where areally extensive, thick, or where
geologic contacts are obscured. Variable thickness, up to 12 ft (4 m).
Qca
38
M
ete
21
A
1 New
Xlg
?
?
38
6
70
80
62
25 S
55
Xmv
38
Qpo 2
U
˛m l 16
by
Richard M. Chamberlin 1 , Karl E. Karlstrom 2 , Sean D. Connell 3 ,
Cynthia Brown 4 , Matthew Nyman 4 , Chris Hitchcock5 ,
Keith I. Kelson5 , Jay Noller 4 , Thomas Sawyer 4 , William J. Cavin 4 ,
Mark A. Parchman 4 , Casey Cook 4 , and Joseph Sterling 4
a
nit
Xmg
Qca
40
31
Coyote
May 1997
22 April 2002 Revision
76
Xlg
10
Mafic dike (Oligocene?) — Dark green to black dikes intruded along some north-trending faults or
fissures. Dikes are chloritically altered and composed mostly of calcic plagioclase and pyroxene (Parchman,
1980). Dikes are probably correlative to an Oligocene mafic to intermediate dike exposed on the northern
flank of the Sandia Mountains (cf., Connell et al., 1995) and may be associated with early extension
along the Rio Grande rift.
.
Tmi
Artificial fill (Historic) — Dumped fill and areas affected by human disturbances. Locally mapped where
areally extensive or geologic contacts are obscured.
.
af
Se
48
D
Xmv
˛m l
QHa
QHa
˛s
Tertiary Intrusives
Neogene (Quaternary and Tertiary) System
Colluvial, landslide, and anthropogenic deposits
˛m l
Qay2
QHa
52
l
Qay
15
28
Valley Floor
nza
a
M
50
Xlg
Xmg
Puerta fau
lt
Xp
Xmg
ea
70 N,s
72
44
79
58
Xlg
88
38
˛s
74
Qay
˛s
Xmg
75
N
Qay2
?
CENOZOIC DEPOSITS
106° 22' 30"
35° 00'
3
460 000 FEET (CENTRAL)
˛s
67 N,d
Xlg 33
73
So
Qpo 2
70
˛s
51
Xp
27
Xlg
Xlg
Qca
43
70
Xmg
Xmv
QHa
3
72
Qca
75
QHa
ul
t
QTsp
Qay
˛s Xmg
Xp
76
Xmg
Sol
D
˛m l 52
ne
zo
75
Xmv
Xmv
Xp
Xs
Xq
Qay
˛m
Xp
45
Xmg
˛m
˛m
U
25
Xq
48
15 S,r
38
42
Xp 54
Xq
2
˛s
3
˛s
Xmg
fault
50
50
40
Xq
Xmg
QHa
95-BH7
35
34
Xp
26
30
4 38
Xmv35
Xmv
Xlg Qca
53
Xq
Xlg
Xmv
71
Qay
49
QHa
˛s
3
25'
7.2 MI. TO U.S. 66
Xmg
Malacate
Xq
˛m
Qpo 2
30
Xq
30
27
70
Qay
QHa
Xlg
54
54
Xmv
Qay
26
45
46
Qpo 2
QHa
Qpo 2
Xs
Xs
14
18
Xq
28
Xlg
Xmg
36
3
69
Qay
M
ete
95-BH4
˛m l
23
36
32
14
Xs 30
Xmv
Qay
53
Qca
L
DI
E
(S
Xlg
44
faul
t
73000m N.
Xq
54
Qca
Xq
60
58
54
Xmg
Xmg
f a ul t
Qtr
˛s
31
Qca
3
(TIJERAS)
Xp
Xq Xmg
Xlg
Xp
29
68
Mal
acat
e
fa
ul
t
Xq
Xs
Xq
42
Qay
3
R. 5 E.
Xmg
30
Xq
Qay1
Qay
˛m l
˛m l
Qay 95-BH2
B
R. 4.5 E.
re
70
27' 30"
R. 4 E.
To
r
zo
ne
Xq
˛s
Qay
OF
66
14
Xbg
Geology of the Mount Washington
quadrangle, Bernalillo and Valencia
Counties, New Mexico
3
65
Qpo 2
U D
˛s
38
C ORRELATION
84
3
r
Xla
64000m E.
sh
EMA
Dr. Paul W . Bauer
Geologic Mapping
Program Director
Dr. Peter A. Scholle
Director and State Geologist
3
900 000 FEET (WEST)
Ti
jer
as
th
Scie
nce for the 21s
ry
n tu
t Ce
AT
106° 30'
35° 00'
UNIT DESCRIPTIONS
)
LO
NEW MEXICO
P
New
Me
xic
o
NE
T
S
Ea
r
MOUNT WASHINGTON QUADRANGLE
UE
rces
s ou
TE C H
I
CO
Re
ME X I C O
W
ME X
RQ
UE T)
UQ AS
LB E
(A
f Geology and
uo
Mi
a
ne
e
ur
NE W
NMBGMR Open File Map Series
OF–GM–8
Map last modified 22 April 2002
MEXICO INSTITUTE OF MINING & TECHNOLOGY
l
ra
B
A DIVISION OF NEW
Xmv
Xp
1,000'
Xiv
1,000'
Xdt
Xqv
Well Number: MW-13
Date Drilled: Unknown
Drilling Method: Unknown
Location: NE1/4, Sec. 3, T.9N. R.4E.
Elevation: 5,660±20 ft (estimate from topographic map)
0 SL
0 SL
Xmv
-1,000'
-1,000'
Xmv
Depth (feet)
Driller’s Log
Interpretation
0-130
gravel and sand
undivided piedmont alluvium and
Santa Fe Group (Qpa-Tsp)
Xqv
-2,000'
Xmv
-2,000'
-3,000'