Steamboat School deposit (Chee Dodge Ranch), Steamboat, Apache Co., Arizona, USAi
|Regional Level Types|
|Steamboat School deposit (Chee Dodge Ranch)||- not defined -|
A kaolin deposit located in the center sec. 14, T27N, R23E, G&SRM, 2.4 km (1.5 miles) S of Steamboat.
A clay deposit hosted in Late Jurassic sandstone of the Cow Springs Formation. Kaolinized sandstone lies beneath Cretaceous Dakota sandstone. local rocks include Cretaceous sedimentary rocks.
Regions containing this locality
|North America Plate||Tectonic Plate|
|Colorado Plateau, USA||Plateau|
|Navajo Nation Indian Reservation, USA||Reservation|
|Hopi-Navajo Indian Reservations, Colorado Plateau, Apache & Navajo Cos., Arizona, USA|
Select Mineral List TypeStandard Detailed Strunz Dana Chemical Elements
Commodity ListThis is a list of exploitable or exploited mineral commodities recorded at this locality.
1 valid mineral.
Rock Types Recorded
Select Rock List TypeAlphabetical List Tree Diagram
Detailed Mineral List:
| ⓘ Kaolinite|
Reference: Arizona Bur. of Mines Bull. 180 (1969); Peirce, H.W. (1990), AZ Geol. Sur. Industrial Minerals card file; Phillips, K.A. (1987), Arizona Industrial Minerals AZ Dept. of Mines and Mineral Resources Mineral Rpt. 4.
List of minerals arranged by Strunz 10th Edition classification
|Group 9 - Silicates|
List of minerals arranged by Dana 8th Edition classification
|Unclassified Minerals, Mixtures, etc.|
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
|Coniacian - Cenomanian|
86.3 - 100.5 Ma
|Cretaceous sedimentary rocks|
Age: Late Cretaceous (86.3 - 100.5 Ma)
Stratigraphic Name: Dakota Formation; Mancos Formation; Pinkard Formation
Description: Tan sandstone (Dakota Sandstone) overlain by gray shale (Mancos Shale); deposited in beach, river delta, and shallow sea settings. The Mancos Shale is overlain by the Mesaverde Group (map unit Kmv). This unit includes related sandstone and shale exposed near Show Low, Morenci (Pinkard Formation), and around Deer Creek south of Globe. (about 88-97 Ma)
Comments: 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. 
|Early Jurassic - Late Triassic|
174.1 - 237 Ma
|Mesozoic sedimentary rocks|
Age: Mesozoic (174.1 - 237 Ma)
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.