Determine the amount of throw across the two faults labeled AA and BB, located
near the southern edge of the map. Because the Tertiary and Cretaceous strata are not
dipping, you may use the elevation of units on either side of the fault to estimate throw. The
contour interval is 50 feet. Convert your answers to meters and use significant digits.

joes Valley Reservoir, located in the northern part of the map, occupies a
sedimentary basin partially filled with Quaternary alluvium. What is the structure that creates
this basin (hint: the answer does not have the word 'fault' in it.)

The wider zone of faulting at Ferron Canyon, located in the southern part of the
map, is an example of what kind of structure?

Transcribed Image Text:Omw amy Am TKn Omw TKn ANPETE EMERY CO g TK Kor 14803 Omww JKn Kpr QTc A TKn 'Kaj Sofer Omw TKn -KOR B Kom "Ma Qal Ocl Omw TF TKn Kpr Kc Ki Kbh Kap Km Kmm QUATERNARY DEPOSITS ALLUVIUM (HOLOCENE)-Dark brown to gray, thin to thick bedded, locally massive, crossbedded in places. Unconsolidated. Consists of clay, silt, sand, granules, pebbles, and sparse cobbles. Fluvial sediments. Forms broad, even surfaces of low relief. Locally includes higher patches of "older alluvium". Thickness ranges widelu: commonly less than 15 m (50 ft) thick COLLUVIUM (HOLOCENE)-Brown to dark-brown heterogeneous mixture of fragments of many sizes and shapes which locally mantles lower valley walls and accumulates at the base of some steep cliffs. Unconsolidated to semi- consolidated debris. Thickness ranges from a few centimeters (one inch) to as much as 15 m (50 ft) ALLUVIAL FAN DEPOSITS (HOLOCENE)-Light brown to brown, locally gray, unconsolidated to semiconsolidated; moderately well sorted silt, sand, granules, pebbles, or cobbles at the mouths of streams. Fluvial sediments. Commonly lobate. Thickness uncertain, probably as much as 15 m (50 ft) locally EARTHFLOW DEPOSITS (HOLOCENE AND PLEISTOCENE)-Brown to dark brown; sand, granules, pebbles, cobbles, and boulders in an unsorted matrix of clay and silt. Unconsolidated to semiconsolidated debris. Masses of detritus that have flowed downslope to form elongate, hummocky, lobate land forms. Thickness varies widely; probably as much as 45 m (150f) thick locally MASS-WASTING DEPOSITS (HOLOCENE AND PLEISTOCENE)-Brown to dark brown heterogeneous masses of mixed country rock, of diverse sizes and shapes that have slid downslope repeatedly as both small slumps and large debris flows. Debris. Locally includes small earthflows and rock falls. Thickness ranges widely: probably does not exceed 61 m (200 f TERTIARY AND MESOZOIC SEDIMENTARY ROCKS FLAGSTAFF LIMESTONE (EOCENE AND PALEOCENE)-Limestone, light gray to yellowish gray to light brown; locally dolomitic; red to pink near subjacent Jurassic red beds. Thin to thick bedded, locally massive, fine grained, dense, some algal nodules. Contains subordinate interbedded dark-gray, gray, and greenish-gray shale. Oncolite-rich limestone beds locally abundant (Weiss, 1969). Fresh-water lacustrine deposits. Forms resistant ledges and prominent hogbacks. Ranges in thickness from 0 in the central part of the Gunnison Plateau to about 305 m (1000 ft) near Ephraim NORTH HORN FORMATION (PALEOCENE AND UPPER CRETACEOUS)- Mudstone, claystone, sandstone, conglomeratic sandstone, conglomerate, and sparse Imestone, units altemate Irregularly. Mudstones are thickbedded to massive, sandstones range from thin to thick bedded; commonly cross- bedded; fine to medium grained. Limestone beds are thin and dense, locally arenaceous. Contains minor coal beds along east flank of Gunnison Plateau near Wales. Fluvial and some fresh-water lacustrine deposits. Unstable, marked by many slumps, landslides, earthflows, and other mass-wasting deposits. Ranges in thickness from about 152-915 m (500-3,000 ft) PRICE RIVER FORMATION (UPPER CRETACEOUS)-Gray to light-gray conglomerate, conglomeratic sandstone, and sandstone; minor chale. Thin to thick bedded locally massive; commonly well cemented. Coarse conglomerates contain well-rounded clasts of light-brown and purple quartzite, light-gray quartz, light-gray and black chert, and sparse dark-blue limestone. Sandstones are fine to coarse grained. Fluvial deposits. Forms steep slopes and low cliffs. In western part of area consists chiefly of conglomerate beds that probably contain equivalents of Castlegate Sand- stone. Ranges in thickness from a pinch out to about 366 m (1,200 ft) CASTLEGATE SANDSTONE (UPPER CRETACEOUS)-Sandstone, light brown to brownish gray; locally conglomeratic trregularly bedded; massive fine to coarse grained. Locally includes some thin, dark-gray, shaly siltstone units and some carbonaceous material. Fluvial deposits. Ranges in thickness from about 15 m (50 ft) to about 150 m (500 ft) INDIANOLA GROUP, UNDIVIDED (UPPER CRETACEOUS) East of Sanpete Valley-Light-brown to yellowish-brown sandstone, shale, coal, and some conglomerate. Chiefly marine deposits. Includes four named units (in descending order) as follows: Sixmile Canyon Formation (sand- stone, coal, and minor conglomerate), Funk Valley Formation (sandstone and shale), Allen Valley Shale (gray marine shale), and Sanpete Formation (sandstone). About 2.250 it thick (Spieker, 1949, p. 13, 14) BLACKHAWK FORMATION (UPPER CRETACEOUS)-Sandstone, shaly silt stone, shale, carbonaceous shale, and coal. Sandstones, light gray, light brown, and brownish gray; locally reddish brown; thin to medium bedded; crossbedded; fine to medium grained. Many thin to thick coal zones in lower part, major thick coal zone at base directly overlies Star Point Sandstone. Continental and deltaic deposits. Ranges in thickness from about 213 m (700 ft) to about 305 m (1,000 ft) STAR POINT SANDSTONE (UPPER CRETACEOUS)-Light-brown to brown sandstone, shale, and shaly siltstone; thintomedium bedded; fine to medium grained. Consists of three sandstone units (in descending order) as follows: Spring Canyon, Stoms, and Panther Tongues. Sandstone units separated by beds of shale and shaly siltstone. Fluvial deposits. Formation ranges in thickness from about 61-305 m (200-1,000 ft); generally about 107 m (350 ft) thick MANCOS SHALE (UPPER CRETACEOUS)-Consists of five members (in descending order) as follows: Masuk, Emery Sandstone, Blue Gate, Ferron Sandstone, and Tununk. Marine deposits. Formation ranges in thickness from 700 m (2,300 ft) to 1,860 m (6,100 ft) Masuk Member-Shale and shaly siltstone, light gray, bluish gray, and dark gray; thin to medium bedded; few thin interlayered brown sandstone beds. Includes sparse discontinuous ledges of silicified shale. About 305 m (1,000 ft) thick

Question

Determine the amount of throw across the two faults labeled AA and BB, located
near the southern edge of the map. Because the Tertiary and Cretaceous strata are not
dipping, you may use the elevation of units on either side of the fault to estimate throw. The
contour interval is 50 feet. Convert your answers to meters and use significant digits.

joes Valley Reservoir, located in the northern part of the map, occupies a
sedimentary basin partially filled with Quaternary alluvium. What is the structure that creates
this basin (hint: the answer does not have the word 'fault' in it.)

The wider zone of faulting at Ferron Canyon, located in the southern part of the
map, is an example of what kind of structure?

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Omw
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B
Kom
"Ma
Qal
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Omw
TF
TKn
Kpr
Kc
Ki
Kbh
Kap
Km
Kmm
QUATERNARY DEPOSITS
ALLUVIUM (HOLOCENE)-Dark brown to gray, thin to thick bedded, locally
massive, crossbedded in places. Unconsolidated. Consists of clay, silt, sand,
granules, pebbles, and sparse cobbles. Fluvial sediments. Forms broad, even
surfaces of low relief. Locally includes higher patches of "older alluvium".
Thickness ranges widelu: commonly less than 15 m (50 ft) thick
COLLUVIUM (HOLOCENE)-Brown to dark-brown heterogeneous mixture of
fragments of many sizes and shapes which locally mantles lower valley walls
and accumulates at the base of some steep cliffs. Unconsolidated to semi-
consolidated debris. Thickness ranges from a few centimeters (one inch) to
as much as 15 m (50 ft)
ALLUVIAL FAN DEPOSITS (HOLOCENE)-Light brown to brown, locally
gray, unconsolidated to semiconsolidated; moderately well sorted silt, sand,
granules, pebbles, or cobbles at the mouths of streams. Fluvial sediments.
Commonly lobate. Thickness uncertain, probably as much as 15 m (50 ft)
locally
EARTHFLOW DEPOSITS (HOLOCENE AND PLEISTOCENE)-Brown to dark
brown; sand, granules, pebbles, cobbles, and boulders in an unsorted matrix
of clay and silt. Unconsolidated to semiconsolidated debris. Masses of
detritus that have flowed downslope to form elongate, hummocky, lobate
land forms. Thickness varies widely; probably as much as 45 m (150f) thick
locally
MASS-WASTING DEPOSITS (HOLOCENE AND PLEISTOCENE)-Brown to
dark brown heterogeneous masses of mixed country rock, of diverse sizes
and shapes that have slid downslope repeatedly as both small slumps and
large debris flows. Debris. Locally includes small earthflows and rock falls.
Thickness ranges widely: probably does not exceed 61 m (200 f
TERTIARY AND MESOZOIC SEDIMENTARY ROCKS
FLAGSTAFF LIMESTONE (EOCENE AND PALEOCENE)-Limestone, light
gray to yellowish gray to light brown; locally dolomitic; red to pink near
subjacent Jurassic red beds. Thin to thick bedded, locally massive, fine
grained, dense, some algal nodules. Contains subordinate interbedded
dark-gray, gray, and greenish-gray shale. Oncolite-rich limestone beds locally
abundant (Weiss, 1969). Fresh-water lacustrine deposits. Forms resistant
ledges and prominent hogbacks. Ranges in thickness from 0 in the central
part of the Gunnison Plateau to about 305 m (1000 ft) near Ephraim
NORTH HORN FORMATION (PALEOCENE AND UPPER CRETACEOUS)-
Mudstone, claystone, sandstone, conglomeratic sandstone, conglomerate,
and sparse Imestone, units altemate Irregularly. Mudstones are thickbedded
to massive, sandstones range from thin to thick bedded; commonly cross-
bedded; fine to medium grained. Limestone beds are thin and dense, locally
arenaceous. Contains minor coal beds along east flank of Gunnison Plateau
near Wales. Fluvial and some fresh-water lacustrine deposits. Unstable,
marked by many slumps, landslides, earthflows, and other mass-wasting
deposits. Ranges in thickness from about 152-915 m (500-3,000 ft)
PRICE RIVER FORMATION (UPPER CRETACEOUS)-Gray to light-gray
conglomerate, conglomeratic sandstone, and sandstone; minor chale. Thin
to thick bedded locally massive; commonly well cemented. Coarse
conglomerates contain well-rounded clasts of light-brown and purple
quartzite, light-gray quartz, light-gray and black chert, and sparse dark-blue
limestone. Sandstones are fine to coarse grained. Fluvial deposits. Forms
steep slopes and low cliffs. In western part of area consists chiefly of
conglomerate beds that probably contain equivalents of Castlegate Sand-
stone. Ranges in thickness from a pinch out to about 366 m (1,200 ft)
CASTLEGATE SANDSTONE (UPPER CRETACEOUS)-Sandstone, light
brown to brownish gray; locally conglomeratic trregularly bedded; massive
fine to coarse grained. Locally includes some thin, dark-gray, shaly siltstone
units and some carbonaceous material. Fluvial deposits. Ranges in thickness
from about 15 m (50 ft) to about 150 m (500 ft)
INDIANOLA GROUP, UNDIVIDED (UPPER CRETACEOUS)
East of Sanpete Valley-Light-brown to yellowish-brown sandstone, shale,
coal, and some conglomerate. Chiefly marine deposits. Includes four named
units (in descending order) as follows: Sixmile Canyon Formation (sand-
stone, coal, and minor conglomerate), Funk Valley Formation (sandstone
and shale), Allen Valley Shale (gray marine shale), and Sanpete Formation
(sandstone). About 2.250 it thick (Spieker, 1949, p. 13, 14)
BLACKHAWK FORMATION (UPPER CRETACEOUS)-Sandstone, shaly silt
stone, shale, carbonaceous shale, and coal. Sandstones, light gray, light
brown, and brownish gray; locally reddish brown; thin to medium bedded;
crossbedded; fine to medium grained. Many thin to thick coal zones in lower
part, major thick coal zone at base directly overlies Star Point Sandstone.
Continental and deltaic deposits. Ranges in thickness from about 213 m
(700 ft) to about 305 m (1,000 ft)
STAR POINT SANDSTONE (UPPER CRETACEOUS)-Light-brown to brown
sandstone, shale, and shaly siltstone; thintomedium bedded; fine to medium
grained. Consists of three sandstone units (in descending order) as follows:
Spring Canyon, Stoms, and Panther Tongues. Sandstone units separated by
beds of shale and shaly siltstone. Fluvial deposits. Formation ranges in
thickness from about 61-305 m (200-1,000 ft); generally about 107 m
(350 ft) thick
MANCOS SHALE (UPPER CRETACEOUS)-Consists of five members (in
descending order) as follows: Masuk, Emery Sandstone, Blue Gate, Ferron
Sandstone, and Tununk. Marine deposits. Formation ranges in thickness
from 700 m (2,300 ft) to 1,860 m (6,100 ft)
Masuk Member-Shale and shaly siltstone, light gray, bluish gray, and dark
gray; thin to medium bedded; few thin interlayered brown sandstone beds.
Includes sparse discontinuous ledges of silicified shale. About 305 m (1,000
ft) thick

Accepted Answer

Heave: The vertical displacement or offset that happens along a fault is referred to as "heave" in…