Middle Creek, Seward Co., Nebraska, USA
|Latitude & Longitude (WGS84):||40° 46' 42'' North , 96° 58' 10'' West|
|Latitude & Longitude (decimal):||40.77839,-96.96964|
|Köppen climate type:||Dfa : Hot-summer humid continental climate|
Two miles southwest of Pleasant Dale
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
100.5 - 145 Ma
Age: Early Cretaceous (100.5 - 145 Ma)
Stratigraphic Name: Dakota Group
Description: Upper part is white, light-gray, brownish-gray, yellow, redish-brown, and red sandstone and shale. Sandstone is very fine to coarse grained, friable, micaeous, crossbedded, and lenticular; locally contains gravel near base. contains numerous zones of ironstone and siltstone concretions of variable thickness. Middle part is light-gray, yellow, red brown and dark-gray, sandy carbonaceous shale; commonly contains a zone of concretions near top. Lower part is sandstone similar to that in upper except there are zones of siderite concretions and, locally a basal zone of chert pebbles. Approx. max thickness 600 ft.
Comments: Divided into Upper, Middle, and Lower. Deposited in nonmarine and shallow-marine enviroments.
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.