Unnamed Cinder pit , Sunset Crater (Sunset Peak), San Franciscan volcanic field (San Francisco Peaks; San Francisco Mts), Coconino Co., Arizona, USAi
|Regional Level Types|
|Unnamed Cinder pit ||Pit|
|Sunset Crater (Sunset Peak)||Crater|
|San Franciscan volcanic field (San Francisco Peaks; San Francisco Mts)||- not defined -|
A cinders/pumice occurrence located in the NW¼NW¼ sec. 30, T23N, R9E, G&SRM, 2.0 km (1.2 miles) SE of Sunset Crater (coordinates of record), in the Sunset Crater East quadrangle, on National Forest land. The USGS MRDS database stated accuracy for this locality is 100 meters.
Mineralization is a volcanic cinders/pumice deposit. Local rocks include Holocene to middle Pliocene basaltic rocks.
Workings include surface openings comprised of a pit based on the title of the MRDS file.
Regions containing this locality
|North America Plate||Tectonic Plate|
|Colorado Plateau, USA||Plateau|
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No minerals currently recorded for this locality.
List of minerals for each chemical element
This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.
Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org
|Holocene - Zanclean|
0 - 5.333 Ma
|Holocene to middle Pliocene basaltic rocks|
Age: Cenozoic (0 - 5.333 Ma)
Description: Mostly dark-colored basaltic lava and cinders young enough that some original volcanic landforms are still apparent. Includes a small amount of andesite, dacite, and rhyolite. Rocks of this map unit are largely restricted to six areas widely distributed in Arizona: San Francisco and Uinkaret volcanic fields in northern Arizona (0-4 Ma); Springerville (0-4 Ma) and San Carlos (0-2 Ma) volcanic fields in east-central Arizona; and San Bernardino (0-1 Ma) and Sentinel (1-4 Ma) volcanic fields in southern Arizona. Rocks of this unit are also present in the extreme southwestern part of Arizona where they were erupted at the edge of the Pinacate volcanic field (0-2 Ma) in northwestern Sonora. (0-4 Ma)
Comments: Largely in six volcanic fields: San Francisco, Unikaret, Springerville, San Carlos, San Bernardino, and Sentinal. Original map source: Arizona Geological Survey, DI-8 Geologic Map of Arizona, Digital Spatial data for the Geologic Map of Arizona, v. 3.0, edited by S.M. Richard and S.M. Kneale, 2002, 10 p., 2 DOS HD disks. Arc/INFO export file (.e00) format, scale 1:1,000,000.
Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. 
251.902 - 298.9 Ma
|Paleozoic sedimentary rocks|
Age: Phanerozoic (251.902 - 298.9 Ma)
Lithology: Sedimentary rocks
Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529.