Geologic map of the Oklahoma part of the Altus 30' x 60' quadrangle, Harmon, Jackson, Kiowa, and Tillman counties, Oklahoma

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Barclay, J.E.; and Burton, L.C., 1953, Ground-water resources of the terrace deposits
and alluvium of western Tillman County, Oklahoma: Oklahoma Planning and
Resources Board, Division of Water Resources Bulletin, 12, 71 p.
Chase, G.W., 1950, The igneous rocks of the Roosevelt area, Oklahoma: University of
Oklahoma unpublished M.S. thesis, 108 p.
Gilbert, M.C., 1960, The geology of the western Glen Mountains, Oklahoma: University
of Oklahoma unpublished M.S. thesis, 48 p.
Gilbert, M.C., 1986a, Stop 3—Quartz Mountain State Park, Gilbert, M.C. (ed.),
Petrolology of the Cambrian Wichita Mountains Igneous Suite: Oklahoma Geological
Survey Guidebook 23, p. 159-163.
in
Gilbert, M.C., 1986b, Stop 4—Little Bow Mountains Gilbert, M.C. (ed.), Petrology of
the Cambrian Wichita Mountains Igneous Suite: Oklahoma Geological Survey
Guidebook 23, p. 164-166.
in
Ham, W.E.; Denison, R.E.; and Merritt, C.A., 1964, Basement rocks and structural
evolution of southern Oklahoma: Oklahoma Geological Survey Bulletin 95, 302 p.
Harlton, B.H., 1951, Faults in sedimentary part of Wichita Mountains of Oklahoma:
American Association of Petroleum Geologists Bulletin 35, p. 988-999.
Havens, J.S., 1977, Reconnaissance of the water resources of the Lawton Quadrangle,
southwestern Oklahoma: Oklahoma Geological Survey Hydrologic Atlas, HA-6,
1:250,000, 4 sheets.
Hollowell, J.R., 1965, Ground water in the alluvium of Otter Creek basin, Oklahoma:
Oklahoma Water Resources Bulletin 27, 15 p.
Johnson, K.S.; and Ham, W.E., 1966, Geology and mineral resources of the Permian
Blaine Formation and associated strata in southwestern Oklahoma: Oklahoma
Geological Survey unpublished maps.
Merritt, C.A., 1958, Igneous geology of the Lake Altus area, Oklahoma: Oklahoma
Geological Survey Bulletin 76, 70 p.
Miser, H.D.; and others, 1954, Geologic map of Oklahoma: U.S. Geological Survey and
the Oklahoma Geological Survey, 1:500,000, 1 sheet.
Myers, J.D.; Gilbert, M.C.; and Loiselle, M.C., 1981, Geochemistry of the Cambrian
Wichita Granite Group and revisions of its lithostratigraphy: Oklahoma Geology Notes
41, p. 172-195.
8
APPROXIMATE MEAN DECLINATION
MAGNETIC NORTH
TRUE NORTH
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Leonardian Guadalupian Pleistocene
QUATERNARY
PALEOZOIC CENOZOIC
PERMIAN
UNCONFORMITY
UNCONFORMITY
CORRELATION OF UNITS
Holocene
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GEOLOGIC MAP OF THE OKLAHOMA PART OF THE ALTUS 30 60 QUADRANGLE,
GREER, HARMON, JACKSON, KIOWA, AND TILLMAN COUNTIES, OKLAHOMA
X
Compiled by Thomas M. Stanley and Galen W. Miller
Cartography by G. Russell Standridge
2004
 
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UNCONFORMITY
UNCONFORMITY
DESCRIPTION OF UNITS
ALLUVIUM—Unconsolidated sand, silt, clay, and gravel in stream and river
channels on modern flood plains
DUNE SAND—Unconsolidated windblown sand formed into definite dune
structures and ridges
TALUS DEPOSIT—Unconsolidated debris of angular gravel and sand derived
from the weathering of outliers of the Wichita Granite Group, forming immature
alluvial fans and pediment surfaces
COVER SHEET SAND—Featureless sheet of windblown silt and sand
WHITEHORSE GROUP, Undifferentiated—Reddish-brown and orange-brown,
fine-grained sandstone and minor siltstone of the Marlow Formation (below) and
the Rush Springs Formation (above). Units undifferentiated due to absence of
the Emanuel gypsum bed at the top of the Marlow Formation. Maximum
thickness about 30 meters
DOG CREEK SHALE—Reddish-brown, silty shale. Contains thin interbeds of
greenish-gray shale and several thin layers of light-gray dolomite. Thickness
varies between 25 to 60 meters
BLAINE FORMATION—Nine thick beds of white, massive gypsum, each
typically underlain by a thin bed of dolomite and thin to thick beds of reddish-brown
shale. Typically 45 55 m thick. Formation divided into the lower Elm
Fork Member (Pbe) and the upper Van Vacter Member (Pbv)
VAN VACTER MEMBER
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—Six beds of gypsum, each typically 1 5 m thick (each
is thinner or absent to east). Dolomite and shale beds are 3 cm to 1.2 m thick.
Total thickness is 20 25 m. Base mapped at the base of the Mangum Dolomite
Bed
ELM FORK MEMBER—Three beds of gypsum, each typically 1.5 10 m thick
(each is thinner to east). Dolomite beds typically 3 cm to 1 m thick; shale
intervals typically 3 10 m thick. Total thickness is 25 30 m. Base mapped at the
base of the Haystack Gypsum Bed
FLOWERPOT SHALE—Reddish-brown, silty shale. Contains thin interbeds of
greenish-gray shale and several thin layers of gypsum and dolomite in the upper
part. Thickness varies from 30 to 50 meters
REFORMATORY/LUGERT GRANITE MIXED ZONE—Roof pendants and
stoped blocks of Reformatory Granite incorporated along margins of main
Lugert Granite intrusion at Quartz Mountain. Texture more aphanitic than either
granite
LUGERT GRANITE HYBRID—Gabbro assimilation phase of the Lugert
Granite. High quartz content, with abundant biotite. May contain some
inclusions of diabase dikes, Raggedy Mountain gabbros, and apophyses of
Lugert Granite. Phase best expressed at Little Bow Mountain
LONG MOUNTAIN GRANITE—Light colored, highly granophyric
microporphyry with hornblende as dominant ferromagnsian mineral
REFORMATORY GRANITE—Reddish, coarse-grained, equigranular granite;
hornblende dominant, while biotite may be present; locally xenoliths of gabbro
and andesite occur
gabbro—Small, isolated outcrops of dark gray to black, medium- to coarsely
crystalline gabbro containing high amounts of labradorite and pyroxene. Unit
normally exhibits strong hydrothermal alteration
GLEN MOUNTAINS LAYERED COMPLEX—Medium to light gray, medium- to
sometimes coarsely crystalline; at least 5 distinctly layered zones containing
variable amounts of anorthosite,
anorthositic gabbro, and troctolite (see Powell and others, 1980).
plagioclase, augite, and olivine yielding
WICHITA GRANITE GROUP, Undifferentiated—Pink, medium crystalline
granite; both biotite and hornblende present, but biotite dominates; appears to
contain apophyses of Lugert Granite. Unit pertains to Merritt’s (1958)
hornblende-biotite granite, and Gilbert’s (1986b) biotite-hornblende granite
from Little Bow Mountain
HEADQUARTERS/REFORMATORY GRANITE MIXED ZONE—Roof
pendants and stoped blocks of Headquarters Granite cut by numerous dikes
and apophyses of Reformatory Granite
HEADQUARTERS GRANITE—Brownish-red, finely crystalline, biotite-bearing
microgranite with local porphyritic texture
MOUNT SCOTT GRANITE—Variably granophyric porphyry with ovoid feldspar
crystals; hornblende dominant ferromagnesian mineral
HENNESSEY FORMATION—Reddish-brown shale, with some reddish-brown
siltstone beds. In areas where the San Angelo Formation is missing (north-central
part of map) the top of the Hennessey is represented by the Brinkman
Sandstone Bed, a 2-3 m thick sandstone with scattered coarse grains of quartz
and feldspar. Only upper 40–50 m are exposed
COLD SPRINGS BRECCIA—Dark gray microdiorite blocks set in matrix of
leucogranite; locally medium gray quartz monzodiorite blocks in light gray
granodiorite matrix
LUGERT GRANITE—Reddish-pink to reddish-brown, medium-grained granite.
Feldspar crystals typically twice as large as quartz; hornblende more common
than biotite. Some porphyritic texture may occur along contact with
Reformatory Granite absent a mixed zone
diabase dikes—Various dark to medium gray, to dark green aphanitic mafic
rock; usually exhibits strong hydrothermal alteration. Dikes range from 0.5 to 1
meter wide, and may extend for several kilometers
felsic dikes—Various light colored, aphanitic, fine-crystalline, to sometimes
medium crystalline rocks of granitic composition. Most are only a few
centimeters wide, and extend for only a few 100 meters
OLDER ALLUVIUM—Unconsolidated sand, silt, clay, and gravel in stream and
river channels, mainly between 0–12 m above modern flood plains
OLDER ALLUVIUM—Unconsolidated sand, silt, clay, and gravel in stream and
river channels concentrated between 12–24 m above modern flood plains
TERRACE GRAVEL—Unconsolidated gravel, sand, silt, and clay laid down at
several levels along former courses of present-day rivers and streams
Pbv
EL RENO GROUP
RAGGEDY MOUNTAIN
GABBRO GROUP
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SAN ANGELO SANDSTONE—Light-gray to reddish-brown, fine-grained,
cross-bedded sandstone, with local interbeds of yellowish-gray and reddish-brown
shale; absent to the north; thickness about 0–30 meters
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ARTIFICIAL FILL—Natural or artificial talus, slumps, and tailings covering
formally exposed areas around active and inactive mining operations
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Boise City Gu ymon Beave r Buffalo
Foss
Reservoir
Elk City
A ltu s
Watonga
Anadarko
Lawton Pauls Valley
Ardmore
Gainesville
Burkburnett
Wichita Falls
Ponca City P aw huska Bartle sville
Tulsa
Muskog ee Stilwell
Eufaula Fort Smit h
McA les ter Mena
An tlers
Paris
De Queen
Idabel
Bristow
Shaw nee
Ada
Tishomingo
Sherman
Keystone
Lake
Woo dwar d Fairview Enid
Oklahoma
City North
Oklahoma
City South
Alva
103° 102° 101° 100° 99° 98° 97° 96° 95° 37°
36°
35°
34°
Neosh o
Fayetteville
Map of Oklahoma showing the locations of the 30 X 60
quadrangles. Red shaded quadrangle represents the current
map
 
Vernon
Base Map Credits
Geologic Map Credits
The base map was compiled by the U.S. Geological Survey from 1:24,000 and
1:62,500-scale topographic maps dated 1961-1971. Planimetry revised from aerial
photographs taken 1983. Map edited 1985. Universal Transverse Mercator (UTM)
projection. 1927 North American Datum. 25,000-foot grid ticks based on Oklahoma
coordinate system, north zone. 10,000-meter UTM grid, zone 14.
Geology compiled and field checked by Thomas M. Stanley and Galen W. Miller, 2003 -
2004. Research supported by the U.S. Geological Survey, National Cooperative
Geologic Mapping Program, under Assistance Award Number 03HQAG0014. 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 U.S. Government.
Cartography and layout prepared by G.
Russell Standridge, 2004.
Originally published as Open-File Report OF5-2005.
Map revised and published as OGQ-59.
Unit contact; approximately located
Axial trace of synclinal structure, dashed where approximate
Fault, dotted where covered; ball and spike on downthrown
side. All faults are normal faults, dipping 60–65°
Monoclinal flexure, hachures show dip direction of
flexed strata; dip angle of flexed strata shown locally
SYMBOLS
25
Powell, B.N.; Gilbert, M.C.; and Fischer, J.F., 1980, Lithostratigraphic classification of
basement rocks of the Wichita province, Oklahoma: Geological Society of America
Bulletin, pt.1, 91, 509-514, and pt.2, 91, 1875-1994..
OKLAHOMA GEOLOGICAL SURVEY
Charles J. Mankin, Director
OKLAHOMA GEOLOGICAL SURVEY
1908 CENTENNIAL 2008
Oklahoma Geologic Quadrangle OGQ-59
Geologic Map of the Altus
30 X 60 Quadrangle  