Utah Geology: Stratigraphic-Geologic Columns

Utah Stratigraphic Columns (overview page)

These stratigraphic columns are dynamically created (on the fly) from information stored in a database. Information was gathered from a number of sources - see copyright info for more information.

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Stratigraphy of
Arches National Park Area

Period	Formation / Members		Thick- ness	Rock Type
QUAT	Alluvium, colluvium		0-100
TERT	Glacial & eolian deposits		0-200
TERT	Geyser Creek Fanglomerate		0-600
CRET	Diorite & monzonite porphyry dikes, sills, laceoliths of LaSal Mts		NULL
	Mancos Shale	Upper shale Mbr	0-500 +
		Ferron Ss Mbr	0-100
		Lower Shale Mbr	300-500
	Dakota Sandstone		0-200
	Burro Canyon Fm		80-250
JURASSIC	Morrison Fm	Brushy Basin Mbr	250-450
		Salt Wash Member	130-350
		Tidwell Member	20-100
	Entrada Ss	Brushy Basin Mbr	250-450
		Salt Wash Member	130-350
		Tidwell Member	20-100
	Navajo Sandstone		0-550
	Ka yenta Formation		140-300
	Wingate Sandstone		150-450
TRIASSIC	Chinle Fm	Siltsione member	150-300
		Black ledge	0-150
		Limy member	0-50
		Claystone mbr	0-100
		Moss Back Mbr	0-50
	Moenkopi Fm	Upper slope mbr	230
		Ledge-forming m	260
		Sinbad Ls Mbr	0-60
		Lower slope mbr	100-200
	Hoskinnini Sandstone		0-100
PERMIAN	Cutler Group	White Rim Ss	0-250
		Organ Rock Sh	0-300
		Cedar Mesa Sandstone	0-1200
		Arkosie faeies Arkosic fames of Cutter Group is danced from the Uncompahgre Uplift to the east and interfingers wry both the Cedar Mesa and Elephant Canyon Fms	400-3000
		Elephant Canyon Fm (formerly called Rico facies of Cutler)	0-1500
PENN	Hermosa Group	Honaker Trail Formation	1300-2000
		Paradox Fm (eyclic sequence of saltanhydrite, potash, black shale, dolomite and locally arkose)	2000-5000
		Pinkerton Trail Fm	0-150
	Molas Formation		0-100
MISS	Leadville Dolomite		300-600
DEV	Ouray Limestone		0-150
	Elbert Formation	Main Body	100-200
	Elbert Formation	McCracken Ss M	25-100
CAMB	Lynch Dolomite		800-1000
	'Bright Angel" Shale		0-100
	Ignacio Quartzite		100-300
pC (PROT)	Schist, gneiss, granitic and pegmatite, dikes and plugs		NULL

Data Sources:
*Still Gathering/Under Construction*
USGS Special Publications by Various Authors
Roadside Geology of Utah by Halka Chronic
Field Guide: Northern Colorado Plateau by Keith Rigby
Geologic History of Utah by Lehi Hintze- Purchase Information