Milford, Seward Co., Nebraska, USA
|Latitude & Longitude (WGS84):||40° 46' 28'' North , 97° 3' 2'' West|
|Latitude & Longitude (decimal):||40.77445,-97.05059|
|Köppen climate type:||Dfa : Hot-summer humid continental climate|
1 valid mineral.
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
66 - 100.5 Ma
|Greenhorn Limestone and Graneros Shale|
Age: Late Cretaceous (66 - 100.5 Ma)
Description: Greenhorn Limestone- medium- to light-gray limestone interbedded with argillaceous limestone, marl and calcareous shale; contains Inoceramus fossils. Upper and lower contacts gradational. Approx. max thickness 30 ft. Graneros Shale- medium- to dark-gray, partly calcareous shale. Interbeds of siltstone, sandstone, and carbonaceous shale, and thin bentonite layers in upper part. Approx. max thickness 60 ft.
Comments: Colorado Group
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.