West Branch pegmatite, Newark, New Castle Co., Delaware, USA
|Latitude & Longitude (WGS84):||39° 41' 45'' North , 75° 46' 31'' West|
|Latitude & Longitude (decimal):||39.69602,-75.77551|
|Köppen climate type:||Cfa : Humid subtropical climate|
Basement and utility excavation for housing on East Mill Station Drive in the development of
West Branch. All excavations are currently filled and built upon so further collecting is impossible.
6 valid minerals.
Rock Types Recorded
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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
252.17 - 541 Ma
Age: Paleozoic (252.17 - 541 Ma)
Stratigraphic Name: Wilmington Complex
Comments: Paleozoic(?), Wilmington Complex
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. 
485.4 - 541 Ma
|Paleozoic volcanic rocks|
Age: Cambrian (485.4 - 541 Ma)
Lithology: Volcanic 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.