Dickey Brook, Peekskill, Westchester Co., New York, USA
|Latitude & Longitude (WGS84):||41° 16' 22'' North , 73° 56' 29'' West|
|Latitude & Longitude (decimal):||41.27278,-73.94139|
|Köppen climate type:||Cfa : Humid subtropical climate|
Quartz veins in metamorphic schist in the Blue Mountain Reservation. (Dickey Brook forms the border between Peekskill and Cortlandt here.)
2 valid minerals.
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
443.8 - 458.4 Ma
|Biotite augite norite|
Age: Late Ordovician (443.8 - 458.4 Ma)
Stratigraphic Name: Cortlandt Complex
Comments: part of Cortlandt and Smaller Mafic Complexes.
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 Ordovician - Cambrian|
470 - 541 Ma
|Paleozoic sedimentary rocks|
Age: Paleozoic (470 - 541 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.