Document 10907331
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NEW MEXICO BUREAU OF GEOLOGY AND MINERAL RESOURCES Tlp Cenozoic Qvy Qal Qal Tbpg Tsl Tid 348000 Tid Qvy 349 000 2000 0.5 3000 4000 5000 0 6000 7000 FEET 1 KILOMETER New Mexico Bureau of Geology and Mineral Resources Open-file Geologic Map 237 Mapping of this quadrangle was funded by a matching-funds grant from the STATEMAP program of the National Cooperative Geologic Mapping Act (Award Number: G13AC00186), administered by the U. S. Geological Survey, and by the New Mexico Bureau of Geology and Mineral Resources, (L. Greer Price, Director and State Geologist, Dr. J. Michael Timmons, Geologic Mapping Program Manager). Geologic Map of the Bustos Well 7.5-Minute Quadrangle, Socorro County, New Mexico J This and other STATEMAP quadrangles are available for free download in both PDF and ArcGIS formats at: June 2014 by Cather, S. M. 1, Osburn, G. R. 2, Flores, S. C. 3, and Green, M. 3 1 New Mexico Bureau of Geology and Mineral Resources, 801 Leroy Place, Socorro, NM 87801 2 Earth and Planetary Science Department, Washington University, St. Louis, MO 63130 3 Department of Geology, University of California - Davis, One Shields Avenue, Davis, CA 95616 Lemitar Tuff — Pink, densely welded, moderately crystal-rich rhyolite ignimbrite. Crystals are 34°0'0"N Tvp Tvp Vicks Peak Tuff — Light gray, moderately welded, crystal-poor rhyolite ignimbrite. Thickness ~110 m. 40Ar/39Ar age is 28.6 Ma. After this map has undergone scientific peer review, editing, and final cartographic production adhering to bureau map standards, it will be released in our Geologic Map (GM) series. This final version will receive a new GM number and will supercede this preliminary open-file geologic map. The map has not been reviewed according to New Mexico Bureau of Geology and Mineral Resources standards. 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, or the U.S. Government. Dakota Sandstone (Middle Cenomanian) — Gray to yellow, fluvial to marginal marine medium to coarse-grained sandstone and minor mudstone. No body fossils have been found in the Dakota. About 5–20 m thick. Tlj Tlj La Jencia Tuff — Pink to gray, densely to moderately welded, crystal-poor, rhyolitic ignimbrite that exhibits compound cooling. Upper part of unit is prominently flow-banded. Crystals are mostly TRc ^c Chinle Formation (Upper Triassic) — Red, gray and maroon fluvial mudstone with subordinate sandstone, limestone-pebble conglomerate, and limestone. Forms slopes and valleys. Locally includes Moenkopi Formation. About 200 m thick. Formation-rank nomenclature after Cather et al. (2013). Cretaceous Triassic Permian La Jara Peak Basaltic Andesite — Aphanitic to slightly porphyritic mafic flows and associated breccias of mostly basaltic andesite composition. Phenocrysts are mostly plagioclase and clinopyroxene. In the quadrangle, the unit occurs as several tongues 0–80 m thick intercalated within the stratigraphic interval between the lower Spears Formation and the base of the Tuff of South Crosby Peak(?). TRm Moenkopi Formation (Middle Triassic) — Red-brown, brown, and buff continental mudstone, ^m sandstone and minor conglomerate. Locally mapped as part of the Chinle Formation where thin or poorly exposed About 10–30 m thick. Upper Spears Group — Dark- to medium-gray volcaniclastic sandstone and conglomerate. Debris-flow breccias are locally present. Clast lithotypes are mostly dark gray basaltic andesite (plagioclase- and clinopyroxene-bearing) but also andesite-dacite (plagioclase- and amphibole-bearing) and ignimbrite clasts. 0–120 m thick. Spears Group terminology used as defined by Cather et al. (1994). Permian Tsu Tsu Fault (unspecified) - Identity or existence questionable, location approximate Fault (unspecified) - Identity or existence questionable, location concealed Tid Tid Andesite to basaltic andesite dike — Mafic to intermediate-composition dike ~5–10 m wide in southeastern part of quadrangle. Commonly exhibits greenish alteration. Probably represents an intrusive equivalent of the La Jara Peak Basaltic Andesite. Tdd Tdd Dacite extrusive rocks — Medium brownish gray, plagioclase and amphibole-bearing lava. Composed of a single flow 0–90 m thick with an autobrecciated base. The flow yielded a 40Ar/39Ar Paleozoic Erathem Psa Psa San Andres Formation (Permian, Leonardian) — Interbedded limestone, dolostone, and gypsum. Limestone is brownish-black , pale yellowish-brown and medium gray, and ranges from wackestone to grainstone. Dolostone is brownish-gray to olive-gray, and locally gypsiferous. Bedded gypsum is abundant in the middle and upper part of the San Andres in the northeastern part of the quadrangle. Gypsum is white to light gray, laminated to massively bedded. Thickness is ~200 m. Locally includes 5–15 m of orange gypsiferous siltstone at the top of the unit that may be correlative with the Permian Artesia Group. Pg Pg Glorieta Sandstone (Permian, Leonardian) — White to very pale orange, fine- to medium-grained, Pyu Pyu Upper Yeso Formation (Permian, Leonardian) — Interbedded siltstone, gypsum, dolomitic limestone, sandstone, and shale. About 200 m thick. Consists of three unmapped members (in ascending order): the Torres, Cañas Gypsum, and Joyita Members. The upper two members are locally cut out by low-angle normal faults. Torres Member—Interbedded pale to moderate underlying 32.1 Ma Hells Mesa Tuff. 0–15 m thick.. 40Ar/39Ar age is 32.1 Ma. Rock House Canyon Tuff — Light gray, crystal-poor rhyolitic ignimbrite. Phenocrysts are mostly light gray gypsum thin layers and lenses of dolomitized oolitic limestone, and pale yellowish-brown to olive black limestone that ranges from carbonate mudstone to peloidal or oolitic packstone and grainstone and are locally sparsely fossiliferous, dolomitic, and argillaceous. Thickness is ~160 meters. Cañas Gypsum Member—Interbedded very light gray to white laminated to nodular-mosaic gypsum and minor, thin very fine-grained silty sandstone and a thin, fetid, gypsiferous calcareous mudstone and limestone. Thickness is 0–24 meters. Joyita Member—Pale reddish-brown to moderate reddish-orange, friable and calcareous, fine- to very fine-grained Tdw Datil Well Tuff — Medium brownish gray, crystal-rich rhyolitic ignimbrite. Crystals are mostly Tdw pumice-poor. 0–50 m thick. 40Ar/39Ar age is 35.5 Ma. Tsl Tsl Lower Spears Group — Medium- to light-gray volcaniclastic sandstone, conglomerate, debris-flow breccia, and minor mudstone. Clasts are dominated by plagioclase- and amphibole-bearing andesite and dacite. Non-volcanic clasts are locally present above transition with underlying Baca Formation. Thickness is ~760 m. Age range is ~39–36 Ma (Cather et al., 1987). Usage of the term Datil Group is after Cather et al. (1994). upper beds display low-angle cross beds and ripple cross-laminations. Thickness is 0–30 meters. Nomenclature after Cather et al. (2013). Pyl Pyl Middle Eocene Low-angle normal fault - Identity or existence questionable, location approximate; half-circles on downthrown block base of the unit. Paleozoic clast types (limestone sandstone, siltstone) increase in abundance upsection in most areas. About 300 m thick. Granite boulders as much as 2.5 m in diameter are present in the southwestern part of the quadrangle. Nomenclature after Cather et al. (2013). Thrust fault - Identity and existence certain, location concealed; sawteeth on upper (tectonically higher) plate Anticline - Identity and existence certain, location accurate Pa Pa Abo Formation (Permian, Leonardian) — Interbedded dark reddish brown mudstone and shale, and grayish red to dark reddish brown siltstone, sandstone and, locally, thin conglomerate and rare limestone. Thickness is ~200 meters. Pb Pb Bursum Formation (Permian, Wolfcampian) — Interbedded medium dark gray to grayish red mudstone, medium gray to brownish black, peloidal, fossiliferous, and locally dolomitic limestone, and grayish orange pink to grayish orange, fine to very coarse-grained, lenticular and trough cross-bedded sandstone. About 60 m thick. Pennsylvanian IPma Atrasado Formation of Madera Group (Desmoinesian, Missourian, and Virgilian) — marine and *ma paralic interbedded brownish-gray arkosic sandstone, greenish-gray to gray mudstone, and light gray limestone. Approximately 250 m thick. Nomenclature after Cather et al. (2013). Overturned anticline - Identity and existence certain, location accurate; beds on one limb are overturned; arrows show dip direction of limbs IPmg Gray Mesa Formation of Madera Group (Desmoinesian) — Medium-gray, fossiliferous, commonly *mg cherty, marine limestone, greenish-gray mudstone, and minor sandstone. Subsurface only. About 50 m thick regionally. Nomenclature after Cather et al. (2013). Syncline - Identity and existence certain, location accurate Overturned syncline - Identity and existence certain, location accurate; beds on one limb are overturned; arrows show dip direction of the limbs Plunging anticline - Large arrowhead shows direction of plunge Lower Yeso Formation (Permian, Leonardian) — The Meseta Blanca Member constitutes the lower Yeso Formation. The Meseta Blanca Member is interbedded very pale orange, pinkish-gray and dark reddish-brown siltstone and are dark reddish-brown to grayish-red, slope forming mudstones and shales. Thickness is ~90 m. Top of the unit is placed at the base of the lowermost marine limestone in the Torres Member of the upper Yeso Formation. Base of unit is gradational in many places with the underlying Abo Formation. Nomenclature after Cather et al. (2013). Tbp Baca Formation (middle Eocene) — Fluvial red-bed sandstone, conglomerate, and minor mudstone Tbpg deposited in piedmont environments. Sandstone is commonly cross-bedded; conglomerate contains pebbles, cobbles and boulders of Paleozoic and Proterozoic lithotypes. Clasts are Thrust fault - Identity and existence certain, location accurate; sawteeth on upper (tectonically higher) plate *s Sandia Formation (Atokan) sandstone, greenish-gray mudstone, and medium gray limestone. 90–175 m thick. References Cited Cather, S.M., McIntosh, W.C., and Chapin, C.E., 1987, Stratigraphy, age, and rates of deposition of the Datil Group (upper Eocene-lower Oligocene), west-central New Mexico: New Mexico Geology, v. 9, p. 50–54. Horizontal bedding Cather, S.M., Zeigler, K.E., Mack, G.H., and Kelley, S.A., 2013, Toward standardization of Phanerozoic stratigraphic nomenclature in New Mexico: Rocky Mountain Geology, v.48. p. 101–124. Inclinecd bedding - Showing strike and dip Vertical bedding - Showing strike Overturned bedding - Showing strike and dip 40 Ar/ 39Ar ages of ignimbrites, Mogollon–Datil volcanic field, southwestern New Mexico: New Mexico Bureau of Mines and Mineral Resources, Bulletin 135, 79 p. J Cross section line Geologic Cross Section A—A’ southwest northeast A A’ 8,000 Comments To Map Users Cross sections are constructed based upon the interpretations of the author made from geologic mapping, and available geophysical, and subsurface (drillhole) data. Cross-sections should be used as an aid to understanding the general geologic framework of the map area, and not be the sole source of information for use in locating or designing wells, buildings, roads, or other man-made structures. Kd Kd Tlp Tlp Plunging syncline - Large arrowhead shows direction of plunge This draft geologic map is preliminary and will undergo revision. It was produced from either scans of hand-drafted originals or from digitally drafted original maps and figures using a wide variety of software, and is currently in cartographic production. It is being distributed in this draft form as part of the bureau's Open-file map series (OFGM), due to high demand for current geologic map data in these areas where STATEMAP quadrangles are located, and it is the bureau's policy to disseminate geologic data to the public as soon as possible. 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 may be based on any of the following: reconnaissance field geologic mapping, compilation of published and unpublished work, and photogeologic interpretation. Locations of contacts are not surveyed, but are plo ed 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. Lower part of the Mancos Shale (Middle Cenomanian–Lower Turonian) — Calcareous to noncalcareous gray marine shale with minor, thin sandstone beds near base and top. Sharp basal contact and gradational upper contact. Calcareous shale in upper part of unit contains abundant Pycnodonte newberryi (Stanton). Thin sandstones in basal 15 m contain common Ostrea beloiti Logan. About 135 m thick. Contact - Identity or existence questionable, location approximate 106°37'30"W DRAFT Kml Kml Tuff of South Crosby Peak(?) — light gray, poorly welded, moderately crystal-rich ignimbrite. About 30–50 m thick. 40Ar/39Ar age is ~29.7 Ma. 7,000 Pg Psa Psa 6,000 Pg Psa Psa Pg Pg Psa Psa Pg Pg Psa Pyu Pyu Psa Kd Kth Kml ^c Psa Pyu Pyu Pyl Pa Pa Qvo Tbpg Pyl Pyl Pa ^c Pyu Pg Pyl 5,000 Feet 1000 1 MILE bioturbated, coastal barrier sandstone that coarsens upward from very fine grained to fine grained. Sandstones are light gray, but weather light to dark brown and constitute a 10–12 m thick ridge-forming unit with sharp top and gradational base. Contains Lopha bellaplicata novamexicanum Kauffman. Tcp Tcp Monocline, anticlinal bend - Identity and existence certain, location accurate; arrows show direction of dip; shorter arrow on steeper limb 0 0 Pennsylvanian Paleogene Qae Qae Paleozoic Qal Qvy 347000 3764000 41 44 Mesozoic Quaternary Tcp Tl Tl Tres Hermanos Formation (Middle Turonian) — Sandstone and shale unit that forms a regressive-transgressive wedge of nearshore marine and non-marine deposits that is about 80 m thick with a gradational base and a sharp top. Consists of three unmapped members, in ascending order: Atarque Sandstone Member (lower Middle Turonian) — Regressive coastal barrier sandstones that weather light gray to dark brown or buff. Lower sandstones are transitional with underlying shale and constitute a 5–7 m thick, ridge-forming unit that has very fossiliferous lenses and concretionary sandstone bodies with Pleuriocardia (Dochmocardia) pauperculum (Meek) and Gyrodes spp. Uppermost bed is commonly a brackish water coquina of Crassostrea soleniscus (Meek). Carthage Member (middle Middle Turonian) — Marine, marginal marine, and non-marine sandstone and shale slope-forming unit ~60 m thick; lower two-thirds contains thin, fine grained sandstone beds of paludal-lacustrine or crevasse splay origin and discontinuous, cross-bedded channel sandstones. The upper third contains marine shale with fossiliferous concretions and Contact - Identity and existence certain, location accurate Qae common. About 150–250 m thick. 40Ar/39Ar age is 27.4 Ma (all 40Ar/39Ar ages reported here are from McIntosh et al., 1991, except where noted). *s a Ps Qvy Kth Kth South Canyon Tuff — Light gray to light purple, densely welded, crystal-poor to moderately *mg Qae 48 45 Qae J 47 Tsu Kuu Tcp e Qa Qvy 44 32 106°40'0"W 346000 345000 47 Tlj Tlp Tsl 51 Qvy Tdw Tlj Tvp 344 000 50 51 Kuu 46 Trh 23 Qal Tsu Kuu 3765000 61 52 46 46 Tcp 29 44 Tdd Tsl 35 Tsl 13 48 44 Qvy Tlp 55 Qc Tl af 47 Kd Kth Qvy Tbpg Qal Trh Tbpg Qvy 66 39 ^c 41 Tlp Thm 46 15 Tsl Tsl Tdw Tlp 40 Tsc Tsu Qc Trh 15 Thm Tdd af Tlp Qc Tlj 17 Qvy 48 45 Tbpg 20 Tsu 55 31 29 Tbpg Tsl Tsc Tsc Low-angle normal fault - Identity and existence certain, location concealed; half-circles on downthrown block Kuu 47 47 3766000 23 Kml 30 Trh Tsu ^c Kd 18 32 48 ^c 24 47 ^c Kml Qvy Kmd D-Cross Tongue of the Mancos Shale (Upper Middle Turonian–Lower Coniacian) — Kmd Noncalcareous, medium gray, marine shale. About 90 m thick with a sharp basal contact and a gradational upper contact. Fossils Prioncyclus wyomingensis (Meek) and Scaphites warreni Meek and Hayden, Prioncyclus novimexicanus (Marcou), Forresteria sp., Lopha sannionis (White), and sparse Ostrea elegantula White. Upper Eocene–Oligocene *ma tongue of the Mancos Shale (Middle Coniacian), and Crevasse Canyon Formation (Coniacian–Santonian?) — Gallup Sandstone is fine grained, gray to yellowish gray, regressive Shale is drab marine shale about 30 m thick that is intercalated within the lower Crevasse Canyon Formation about 50 m stratigraphically above the top of the Gallup sandstone. Crevasse Canyon Formation (mostly the Dilco Member) is drab to gray sandstone, mudstone, and coal deposited in Paleogene Pb Low-angle normal fault - Identity and existence certain, location approximate; half-circles on downthrown block 3767000 Kth 46 Tl Tdw Older piedmont alluvium (middle? Pleistocene) — Gravel, sand, and mud deposited at higher elevations (more than about 10 m) above modern stream grade. Range of depositional environments is similar to Qvy. 0–15 m thick. Pa Low-angle normal fault - Identity and existence certain, location accurate Tlp Tlp Tsl Tsl Tlj Tvp Kmd? Tlp 54 41 23 16 Magnetic Declination July, 2012 08.996º' East At Map Center [575] 835-5490 30 Pyl Normal fault - Identity and existence certain, location concealed; balll and bar on downthrown block ^c ^c Kd 45 Tlp 34°2'30"N 7 Kuu 33 Tcp? CONTOUR INTERVAL 20 FEET New Mexico Bureau of Geology and Mineral Resources New Mexico Tech 801 Leroy Place Socorro, New Mexico 87801-4796 Tlp 0.5 1 NEW MEXICO Quadrangle Location 1 1000 PRAIRIE SPRING CANON AGUA BUENA Qae Kuu Qc ^c ^c Qae Trh Qvo Qvo Pyu Trh Trh Kd Tlp 29 3768000 ^c ^c Kuu Tbpg Intermediate-age piedmont alluvium (upper? Pleistocene) — Gravel, sand, and mud deposited at intermediate elevations (about 5-10 m) above modern stream grade. Range of depositional environments is similar to Qvy. 0–10 m thick. Normal fault - Identity or existence questionable, location approximate; ball and bar on downthrown block 22 Kmd Trh 24 Kmd NATIONAL GEODETIC VERTICAL DATUM OF 1929 SAN ANTONIO 106°42'30"W Tlp 28 Qvi Qvi ^c 28 Kuu Younger piedmont alluvium (upper Pleistocene) — Gravel, sand, and minor mud deposited at low elevations (less than about 5 m) above modern stream grade. Alluvium is representative of deposition in a variety of piedmont environments, including alluvial fans, paleovalley and arroyo fills, strath terraces, fill terraces, and pediment surfaces. 0–15 m thick. Thm Hells Mesa Tuff –– Brownish pink, crystal-rich, densely welded rhyolitic ignimbrite. Crystals are Thm 5 Tlp Tlp Tdd Kuu Tbpg 343000 342 000 Kth 16 Qc Tsu Tbpg Tsl Tsp l Qvo Km 8 15 Tlp Qc Qvy Tbpg 16 Qal Tlp 32 Qae Qvo Thm Tcp? Tsl 14 Tlp Tbpg SIERRA LARGA NORTH SIERRA LARGA SOUTH BUSTOS WELL Kd Kml Kd Kd ^c ^c 35 Qvy Qvy ^m Normal fault - Identity and existence certain, location approximate; ball and bar on downthrown block 1:24,000 Base map from U.S. Geological Survey 1972, from photographs taken 1971, field checked in 1972. 1927 North American datum, UTM projection -- zone 13N 1000-meter Universal Transverse Mercator grid, zone 13, shown in blue. SIERRA DE LA CRUZ 341000 Pg 30 Qvy Tsu Tbpg 26 11 ^c 8 Kml 10 Kml Kd Qvy Tsl 10 Kd Tlp Eolian deposits (upper Pleistocene-Holocene) — Eolian sand and loessic silt locally reworked by alluvial processes. Deposits are stabilized by vegetation in most areas. Includes intercalated alluvial deposits and thin, discontinuous eolian veneers on stable upland surfaces. 0–5 m thick. Normal fault - Identity and existence certain, location accurate; ball and bar on downthrown block Kd ^c Kd Qc Tlp 18 Kml? Qal ^c Qae Tsl Qc Kth? Qvo Qae 24 Tbpg Qae Qae ^c Kuu Kmd Qvy ^c Kd ^c 22 Qvy 19 Tsl Tbpg Tsl Kuu 17 ^c Kd Kml ^c 3769000 26 Qae Qae ^c Kd Qvy Tdd Tsl Tsl 23 Qvi Qvy Tlp Tdd 25 Tdd Kml? 35 Kuu ^c Kml 27 19 38 Tsl Tbpg Tsl ^c ^c 23 Qvy Qae 2 15 340000 4 Pyu 30 25 11 Kmd 15 Tsl 14 Kd Qvo 15 Trh 24 15 14 ^c Tsl Tsl Psa 34 16 16 Pg 12 20 Tsl 21 25 15 Tbpg 24 33 ^c Qvi ^c 31 40 Qvo ^m? ^c Kmd Tbpg 26 30 13 29 Psa 42 Kd 14 Psa Tdd Tsl Tsl ^c 5 ^c ^c Qc Tsl ^c Tsl Pyu 38 917 Tbpg Kd? Qvo 10 Kth Kml? Tsu Kml Kuu Colluvium and talus (upper Pleistocene–Holocene)— Gravelly deposits of poorly sorted colluvium and talus blocks on, or adjacent to, steep slopes. 0–5 m thick. Fault (unspecified) - Identity and existence certain, location concealed 25 Kth 27 ^c 339 000 106°45'0"W 30 Qvy 20 23 Kd Qvo Kmd 22 ^c Kth ^c 3770000 Kml 24 10 Qae Kml? Kml? 17 34 ^c ^c ^c Trh Kml? Kth Qae Qvy 34°0'0"N 23 Psa 25 Tsl Kd 28 ^c Pg Psa 12 10 Pg 24 ^c ^c ^c 13 ^c 22 19 Qvi ^c ^c Kmd Tsl 5 27 Kd Qc Qc Fault (unspecified) - Identity and existence certain, location approximate 11 ^c 16 20 25 Qvo 36 7 ^c Kd Kth ^c 28 24 ^c 42 17 3764000 20 12 Kml Alluvium (Holocene) — Sand, gravel, and mud in, and adjacent to, modern arroyo channels. Alluvium is typically at or near the grade of modern channels. 0–10 m thick. Fault (unspecified) - Identity and existence certain, location accurate 12 Qvi Kml 40 Qvy Qvo 29 26 ^c ^m 28 17 15 Tlp Qc Kmd Kuu 14 ^c ^c Kd Kmd 13 ^m ^c Pyu 20 30 Kth Tdd 5 ^c 10 Pyu ^c Tsl 15 13 40 25 3771000 10 ^c Kml Qal Qal Explanation of Map Symbols Kd 31 ^m af 36 ^c Middle(?) Pleistocene–Holocene 3772000 5 Qvy ^c 27 Kth 6 15 Qvi Upper Cretaceous age is 28.0 Ma. 7 Qae ^c Kth Qvo ^m 6 Qvy 41 48 8 24 23 Neogene 8 ^c Qvi 45 Tsl 9 Pyu Qvo 20 Qvo Psa Pg Pyu ^c 12 Qvy ^c Qal Kml 56 Qvi Kuu Tbpg 34°5'0"N ^c 32 Tdd Tbpg Kd ^c Tid Tsl Qvo Qvi af 39 12 14 Tdd Tsl Kth Tdd Tbc 5 Qvo 8 12 Tsl Trh Tsl 31 Kmd Pg Tdw 3773000 12 4 Mesozoic Erathem Psa Tsu Trh Qvi Kth Kmd Qvi 16 af ^c Kml Kuu 7 9 10 28 Qvo 26 30 26 Pyu Kml Kth 23 10 Pyu 15 37 22 ^c 21 33 31 Psa Pyu 42 ^c 10 11 8 Qvo Qvo ^m Qvo 37 Qvi Kuu 46 8 Qvi 41 18 Pyu Kml? 32 Qvo Cenozoic Erathem Tlp Thm Kth 18 Qvi Qvy 47 14 Tsl 5 Kd Tsl ^c 23 10 23 Psa 8 25 49 Qvy Kth 30 13 12 3 ^m Kuu Kd Tlj 9 34 35 23 Pg 10 Pyl 19 Qvy Qvo 10 15 Pyu Psa 23 20 12 8 ^c ^c Psa 25 ^c 14 17 9 14 26 24 30 15 Kmd Tbpg Pg Tsl Pyl Pyu 23 78 Pyu 17 Kml Tsl ^c 5 20 3765000 ^c ^c 56 ^c Qvy ^c ^c Qvy Psa Pg 19 Pg Psa 12 23 Pyl ^c 12 ^c 9 11 17 50 Qvo 40 Pyu 18 50 Qvo ^c Kd Tbc Kd 26 Tbpg Tsl 36 ^c 28 Qvi 44 Qvo Kml? Qvy 24 23 Pg 23 43 76 Pg *s 86 12 73 Pa *s 89 51 87 35 30 26 32 Pg Qvi Tvp 7 Qvo ^c 28 28 52 36 Qvi Kd 17 26 Qvi Qvi 38 6 13 Qvo Qvy Kth 4 ^c 26 Kuu 14 13 Kd Qvi Kth Kml Pyu Pyu 16 40 Qvi Kd ^c Kth 42 Psa 20 Pyu 8 Qae ^m? 19 ^c 47 31 Kml? Kd 15 35 23 21 26 3774000 5 Psa ^c Kd 21 Kml 33 Pg o Qv ^c Kd Psa 15 43 Kd 18 20 Kmd 43 36 41 Qvy 23 17 Psa 5 Qvo 6 Kd 49 Kd Kd Qvo Pyu 6 22 Qvy Pa Pyl 5 56 43 85 Pyl 50 12 20 27 Qvy Qvi 10 12 23 55 *s af 11 16 Pyu 33 ^c 11 Pyl 20 12 Kd 23 46 88 Pyu 58 ^c Qvy Qvi 41 Qvy 74 86 16 Kth 19 53 Kml? 13 Psa 9 38 5 Pa 18 Pyu 5 28 24 6 14 Pyl Psa 18 33 4 ^c18 Pg Pg ^c 48 83 19 12 Pg 3766000 14 34 Qvo Psa 71 Psa 26 27 Pg ^c 3 Pa Psa Pg Psa Pg Psa Psa Pg 9 40 Pa Psa 13 5 1 42 28 44 5 86 12 Pa Psa 52 5 Pyl 7 5 Pa 3 Pg 37 Pyu Pa Pa 16 5 7 40 Pyu 18 3 12 af 15 15 3767000 Psa Qvy 7 5 Psa 10 Psa 6 Pyu 3 15 10 Pg 12 5 12 38 Pyu 22 12 14 Pg 22 Pyu 34°2'30"N 22 3768000 Pyl 31 88 Pyu 3 Qvo Kd Pyl 37 Pyu 29 75 37 Pa 6 Pa 8 36 Qvy 2 7 Pyu Pyl Qvo 6 Pyl 9 11 28 16 Pyl Qae 80 83 Pyl Qae 24 12 5 3 5 11 Pyu 7 Pyu Qvo 80 11 15 7 Qvo 10 Kd Qvo ^c Qvy Pyu Qvi Qvy 75 ^c Qvo 20 af 40 Kmd ^c Qvy ^c Kth 30 7 Qvy Kd Kuu 15 17 5 Qvy 10 10 13 15 Pa 5 4 Qae 25 Qvo Pg ^c 3775000 4 16 ^c ^c 37 77 15 35 Qvy 40 29 2 3 Pyu 20 10 4 3 13 Pyu 4 15 Pg 3769000 11 24 Kd Kml 27 48 Pyu 22 Pyu 63 4 8 24 8 5 ^c Qal 24 Qvi Tl 18 af 23 Qvy Tsc Qvo Kuu Qvi Qvo Qae Kd ^c Pg 20 5 Qvo Qvy 73 Qae Qvo 6 5 Kd 16 Pyu 7 Qvi 74 Pyu ^c Qal 8 Pyu Qal 18 Qae 2 60 7 Qae 29 7 Qae 23 ^c 8 10 19 21 12 22Kd 13 Kml 18 Pyu 50 Pg ^c 8 48 Qvy Qvy 15 Psa Qvo 48 5 45 9 Psa 7 Qvi 19 3 Kth Qvo 5 32 ^c 10 Qae 20 Qvi Kd 50 Qvy 12 Kmd Qvi 5 Qae Qvy 23 3776000 Qc 24 35 33 Pg ^c 26 33 44 37 Pg Qvi 65 Pg 10 Pyu 80 ^c 63 Qvo Pg 12 Qvo Qvy 14 4 9 Tbpg 20 57 16 Pyl 17 Pyu 15 3 Pyu 61 20 15 7 43 39 15 Qvi 12 26 10 Qvy 12 47 47 ^c Qvo Pyu 7 20 Pyu Psa 18 81 Pyl Psa Pg Pyu Pyl 13 37 55 3 8 15 3 18 7 38 Pg 16 12 Pyu 8 Pyu 21 16 11 5 A Qvy Pg 19 3770000 Pyu Pyu 9 Pyu Psa 20 Psa 4 15 Pyl 42 Psa Pg 30 Pyu 10 7 49 6 Qvo 24 Kth Qvy 9 60 ^c 30 Qvy 11 Pyu Psa Pg Pyu Pg Pa 5 30 10 Pg 19 8 63 Pyu Pyl 15 35 Pyu 12 Qvo 14 16 5 32 21 Qal Kml 28 Qvy 3777000 15 40 Psa 11 37 36 5 ^c 17 10 10 33 19 Qae Pg 26 Pg 38 Pyu Psa 5 7 10 Pg 8 Qvy 28 Pyu 7 10 31 Psa 31 6 Psa Pg Psa Psa 10 27 29 Pg 24 16 13 Pyu ^c Psa 10 34 Pyu 14 Pa Pg 16 Pyu 35 17 29 36 Pg Psa Pyu 3 22 80 Pb 3771000 18 Pyu 5 26 Pg Qvy 30 18 8 Pyu Pyu Psa 25 Pyu 13 36 19 10 5 3772000 25 14 34°5'0"N 26 Pa Pyl Psa 51 14 13 Qvo 11 Pg 23 11 16 ^c 17 14 13 Pg Qvy 19 19 Qvo 8 23 7 6 ^c Kd 28 82 17 8 Qvo 11 24 Tbpg Map Unit Descriptions 34°7'30"N Psa 27 19 20 17 25 17 Psa 25 55 Pg 29 30 40 21 Pyu 20 5 ^c 7 13 45 15 Qvo 8 Psa ^c 3 60 7 Qvy 36 30 Pa 26 15 35 Pyu Psa 10 63 21 Qvo 23 20 15 Pyu 5 af 18 Qvy 15 7 18 13 4 3773000 43 Pa 16 29 42 72 *ma 11 35 24 26 7 40 10 43 27 29 28 8 12 13 83 Qvy 21 Pb Pb 8 12 Pb 8 8 67 Pyu 7 5 Pyu 6 Pb 20 50 15 23 26 15 44 32 46 18 10 11 Pyl 24 42 45 15 34 69 18 21 44 29 15 10 8 5 Pb 2 19 18 3 5 Qal 6 Qvy 7 5 Pb 6 *ma Qal 18 10 3774000 Pb 8 8 *ma 5 Qvy 6 *ma 15 8 Pb 12 Qvy 16 12 Qvy 50 13 8 3775000 Qvy 6 13 6 5 7 26 20 15 Pb Qvy *ma 4 6 7 7 6 45 75 55 49 20 5 5 6 5 43 J Correlation of Map Units 106°37'30"W 350 000 349 000 348 000 60 80 *ma Pyu A’ 347000 10 56 Qae 5 Pb Pb 49 Qvy 3776 000 3 *ma Qvy 3 12 23 Pyl 106°40'0"W 346000 Pb 14 Qal 345000 10 25 8 344 000 Pb LOMA DE LAS CANAS 343 000 15 17 18 Pyl 32 7 35 17 30 Pb 2525 3014 18 38Pyu Pa 47 22 19 9 10 Pa 56 26 21 25 11 22 Pyl 30 Qvy 39 15 20 9 18 25 21 25 13 Pb 24 77 Qvy 1922 43 Pb 58 26 48 Pa 45 Pb 10 14 Qvy 16 75 Pyl 22 Pyl *ma 30 10 6 27 Pb Qvy Qae 20 16 10 Pb 34 30 40 11 6 14 85 Pyu 7 10 20 35 29 Pyu 20 11 50 Pyl Pb Pb 40 36 33 4 8 Qae 5 48 15 20 27 5 Pb Qvy 6 8 14 30 8 13 7 Pa 12 15 55 20 5 32 10 24 Qvy *ma Qvy 61 53 78 Qvy Pb *ma 10 Pa 3777000 MESA DEL YESO 106°42'30"W 342 000 341000 340000 34°7'30"N 339 000 Last Modified June 2014 106°45'0"W NMBGMR Open-file Geologic Map 237 A DIVISION OF NEW MEXICO INSTITUTE OF MINING AND TECHNOLOGY Pa 4,000 3,000 sub-Pyu structure is uncertain 2,000 1,000 0 0 10,000 20,000 Feet 30,000 38,950
