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California Division of Mines and Geology
Special Report 106 Geologic Features—Death Valley, California |
Geologic Maps and Sections of a Strip from Pyramid Peak to the Southeast End of the Funeral Mountains, Ryan Quadrangle, California
James F. McAllister1
1U.S. Geological Survey, Menlo Park, California 94025.
Work done partly in cooperation with the California Division of Mines and Geology.
Table 1. Explanation of map units. Maps are contiguous, aligned along A—A". (Thickness is rounded to nearest 100 m maximum section.)
| Qal | ALLUVIUM (Quaternary) |
| Qao | OLDER ALLUVIUM (Quaternary) |
| Qlds | LANDSLIDE MATERIAL (Quaternary) |
| QTf | FUNERAL FORMATION (Pleistocene? and Pliocene) |
| Tcl | CONTINENTAL CLASTIC ROCKS (Tertiary) |
| Tls | LACUSTRINE LIMESTONE (Tertiary) |
| Mp | PERDIDO FORMATION (Upper and Lower(?) Mississippian) 500 feet (top eroded) |
| Mt | TIN MOUNTAIN LIMESTONE (Lower Mississippian) 300 feet |
| Dl | LOST BURRO FORMATION (Upper and Middle Devonian) 2,500 feet |
| DSh | HIDDEN VALLEY DOLOMITE (Lower Devonian and Silurian) 1,400 feet |
| Oes | ELY SPRINGS DOLOMITE (Upper and Middle Ordovician) 500 feet |
| Oe | EUREKA QUARTZITE (Middle Ordovician) 400 feet |
| Op | POGONIP GROUP (Middle and Lower Ordovician) 2,200 feet |
| ∈n | NOPAH FORMATION (Upper Cambrian) 1,700 feet |
| BONANZA KING FORMATION | |
| ∈bb | BANDED MOUNTAIN MEMBER (Upper and Middle Cambrian) 2,400 feet |
| ∈bp | PAPOOSE LAKE MEMBER (Middle Cambrian) 1,200 feet |
| ∈c | CARRARA FORMATION (Middle and Lower Cambrian) 1,600 feet |
| Lower formations exposed in the Funeral Mountains, Ryan quadrangle | |
| ZABRISKIE QUARTZITE (Lower Cambrian) 800 feet | |
| WOOD CANYON FORMATION (Lower Cambrian and Precambrian) 4,000 feet | |
| STIRLING QUARTZITE (Precambrian) 4,800 feet | |
| JOHNNIE FORMATION (Precambrian) 1,000 feet to concealed part | |
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| Figure 1. Geology at Pyramid Peak, Funeral Mountains. Explanations of map units in Table 1. (click on image for a PDF version) |
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| Figure 2. Geology at southeast end of Funeral Mountains. Explanation of map units in Table 1. (click on image for a PDF version) |
REFERENCES
McAllister, James F., 1970, Geology of the Furnace Creek borate area, Death Valley, Inyo County, California: California Div. Mines and Geology Map Sheet 14.
______ 1973, Geologic map and sections of the Amargosa Valley borate area—southeast continuation of the Furnace Creek area—Inyo County, California: U.S. Geol. Survey Misc. Geol. Inv. Map I—782.
______ 1974, Silurian, Devonian, and Mississippian formations of the Funeral Mountains in the Ryan quadrangle, Death Valley region, California: U.S. Geol. Survey Bull. 1386, 35 p. (in press).
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Last Updated: 24-Jul-2009