PROBLEM: GEORGIA EARTH MATERIALS
EARTH MATERIAL SAMPLES
+1 / rock name
ROCK NAME
+0.5 / class, comp, age, geo history, location box +0.5BP / (italics)
Partial Given
Info
CLASSIFICATION
Composition
Organic sed rock
1
Coal
2
Conglomerate
C
P (Penn)
3
Kaolinite or
kaolin
4
Limestone
with fossils
(Ocala
limestone)
5
Georgiaite or
Tektite
(Suwanne
Limestone)
6
Shale with
leaf/fern
fossils
7
Shark’s tooth
from sed. rock
8
Granite
9
Shale with
trilobite
(Conasauga
shale)
1
0
Gneiss
1
1
Limestone
with fossil
Brachiopods
(Bangor
limestone)
1
2
Oyster Fossil
1
3
Clastic sed rock
K (Cre) to T
(Ter)
Mineral or Clastic
sed rock
Ter.
Organic sed rock
Extrusive igneous
rock
Penn.
Clastic sed rock
Carcharodon
megalodon
Sed rock
281-310 my
Intrusive igneous
rock
Cam
Clastic sed rock
(Elrathia
Antiquata)
Foliated
Metamorphic rock
Miss.
1
4
Marble
1
5
Mica Schist or
Phyllite
With garnets
Felsic or
quartz or
Si02
Clay
minerals or
Al-silicate
Silica or
Ca3(PO4)2
compound
Felsic
minerals
(silicates)
Clay
minerals
(Al-silicates)
Intermed. or
felsic and
mafic
CaCO3
Extrusive igneous
rock
mafic
Foliated
Metamorphic rock
Ridge and
Valley or
App.
Plateau
Ridge and
Valley /
App.
Plateau
Coastal
Plain
(near fall
line)
Deposition of bay or estuary
sediments, fossils, burial, uplift,
erosion, exposure
(Atlantic Ocean)
Extrusive igneous rock formed
in volcanic event near surface.
Surface rock of Appalachians
eroded away, so not found in
GA. No recent volcanoes.
Heat and pressure during
formation of Appalachians
metamorphosed limestone,
uplift, erosion, exposure
Heat and pressure during
formation of Appalachians
metamorphosed sediments,
uplift, erosion, exposure
Coastal
Plain
Cret. or
Tertiary
or
100 – 50
my
Sedimentary rock
Nonfoliated
Metamorphic rock
Deposition of vegetation in a
coastal forest, burial, uplift,
erosion, exposure
(near Iapetus Ocean)
Erosion and deposition of river
sediments, burial, uplift,
erosion, exposure
(Iapetus Ocean)
Weathering and erosion of
igneous rocks exposed from
Appalachian formation,
deposition along coastline,
burial, uplift, erosion (Atlantic
Ocean)
Deposition of marine sediments
far from shore, fossils, burial,
uplift, erosion , exposure
(Atlantic Ocean)
Meteorite impact in Chesapeake
Bay area 35 my, heat of impact
melts surface rocks, ejected
from crater area, cools through
air, lands in shallow ocean in
GA (Atlantic Ocean)
Deposition of sediments in a
coastal forest, fern imprints,
burial, uplift, erosion, exposure
(Iapetus ocean)
Extinct 40-60 foot long species
similar to great white shark.
Marine sediments, burial, uplift,
erosion, exposure
(Atlantic Ocean)
Igneous intrusion during
formation of Appalachians,
uplift, erosion, exposure
Deposition of marine sediments
near shore, burial, uplift,
erosion, exposure
(Iapetus Ocean)
Heat and pressure during
formation of Appalachians
metamorphosed sediments,
uplift, erosion, exposure
Deposition of marine sediments
far from shore, fossils, burial,
uplift, erosion, exposure
(Iapetus Ocean)
Clay mineral
or
Al-silicate or
Al2Si2O5(OH)4
Chemical sed rock
Scoria
Penn. or
325-290
my
Penn. or
325-290
my
CaCO3 or
calcite
Crassostrea
Cusseta
30-60 cm long
Stewart Co.
< 5000 y
HISTORY
SiO2 or
quartz
CaCO3
Olive green,
translucent,
SG 2.65, <1500
samples, 35
my, bolide
AGE
CaCO3 or
calcite
Mica or Alsilicate
Tertiary
or
65-2 my
Tertiary
or
35 my
Penn. or
325-290
my
Tertiary
or
20 – 2
my
Penn. or
280-310
my
Cam. or
550 –
500 my
PreC or
Pal.
550-250
my
Miss. or
360 –
320 my
Cret.
65-110
my
Recent
or Quat.
or <5000
ya
PreC or
Pal.
550-250
my
PreC or
Pal.
550-250
my.
Location
Coastal
Plain
Coastal
Plain
Ridge and
Valley or
App.
Plateau
Coastal
Plain
Piedmont
or Blue
Ridge
Ridge and
Valley or
App.
Plateau
Blue Ridge
or
Piedmont
Ridge and
Valley /
App.
Plateau
Not from
Georgia
Blue Ridge
Blue Ridge
or
Piedmont
1
6
Mica Schist
1
7
Greenstone or
Geenschist
1
8
Gold
1
9
Sandstone or
Siltstone
2
0
Granite or
Gneiss
(Corbin metagranite)
Foliated
Metamorphic
O(Ord)
Red Top Mtn.
Assoc. w/ #15
Foliated
Metamorphic rock
SG 19.2
Foliated
Metamorphic rock
P (Penn)
2
1
Staurolite
Mica, clay
mineral, AlSilicate
Mafic
Au
Clastic sed rock
SiO2 or
quartz
Meta-granite
1.1 bya
Red Top Mtn.
Metamorphosed
intrusive igneous
rock
Brownish red
Metamorphic
Felsic
Fe2Al9Si4O22
(OH)2
PreC or
Pal. 550250 my
Ord. or
490-440
my
Ord. or
490-440
my
Penn. or
325-290
my
PreCam.
or
(1.2 bya)
PreC or
Pal.
550-250
my
Heat and pressure during
formation of Appalachians
metamorphosed sediments,
uplift, erosion, exposure
Metamorphosed igneous rocks
deposited off volcanic islands in
ancient Ocean (Iapetus Ocean)
Blue Ridge
or
Piedmont
Heat and pressure of
Appalachian formation
metamorphosed volcanic
rocks, uplift, erosion
Deposition of sand along beach,
burial, uplift, erosion, exposure
(Iapetus Ocean)
Blue Ridge
Granite intrusions in ancient
mountains, uplift, erosion,
exposure
(Grenville Mtns. Or Rodinia))
Heat and pressure during
formation of Appalachians
metamorphosed rock, uplift,
erosion, exposure
Blue Ridge
Ridge and
Valley /
App.
Plateau
Piedmont
or Blue
Ridge
Blue Ridge
or
Piedmont