Road cut, Bigelow, De Kalb Township, St. Lawrence Co., New York, USA
|Latitude & Longitude (WGS84):||44° 25' 18'' North , 75° 21' 48'' West|
|Latitude & Longitude (decimal):||44.4216666667, -75.3633333333|
Sandstone paleokarst on metamorphic rocks.
15 valid minerals.
This 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 data will improve over time as more accurate maps and data sets are added.
|Mesoproterozoic1000 - 1600 Ma||Biotite-quartz-plagioclase paragneiss|
|Mesoproterozoic1000 - 1600 Ma||Mesoproterozoic metamorphic and undivided crystalline: paragneiss|
Metamorphic and undivided crystalline: paragneiss
|Mesoproterozoic1000 - 1600 Ma||Mesoproterozoic intrusive and metamorphic terranes|
Intrusive and metamorphic terranes
Mixtures of metamorphic and intrusive or plutonic rocks, tracts known as crystalline, migmatitic terranes, moderately to highly metamorphosed rocks of unknown origin with or without intrusions. This classification is inherently prone to variable interpretation, as other compilers might distinguish some packages by their metamorphic or gneissic protoliths, and the associated age ranges may be more variable.
References for regional geology:
Data provided by Macrostrat.org
Garrity, C.P., and Soller, D.R.,. Database of the Geologic Map of North America: adapted from the map by J.C. Reed, Jr. and others (2005). U.S. Geological Survey Data Series 424 .
USGS compilers. State geologic map data. State Maps.
Geological Survey of Canada. Generalized geological map of the world and linked databases. doi:10.4095/195142. Open File 2915d.
Rocks & Minerals 85:250-259