Mineral Resources On-Line Spatial Data
Mineral Resources > Online Spatial Data > Geology > by state > Maine
|Name||Ordovician Chase lake Formation conglomerate member|
|Original map label||Oclc|
|Comments||Named for Chase Lake, Piscataquis Co., north-central ME. Consists of a lower member composed of slate and graywacke and an upper member composed of conglomerate and graywacke. Thickness is at least 610 m. Unconformably overlies Chase Brook Formation; conformably underlies Bluffer Pond Formation. (ME017) Unit description from USGS GEOLEX website (ME078). W - Weakly metamorphosed; contains local occurrences of prehnite and pumpellyite Protolith I - Conglomerate|
|Primary rock type||conglomerate|
|Secondary rock type|
|Other rock types|
Sedimentary > Clastic > ConglomerateW - Weakly metamorphosed; contains local occurrences of prehnite and pumpellyite Protolith I - Conglomerate
Digital bedrock data downloaded from Maine Office of GIS in September 2005 from http://apollo.ogis.state.me.us/catalog/catalog.asp?state=2&extent=cover#bedrock Bedrock units table (publication date 11/15/2002) downloaded from same site. Permission to redistribute these data granted by Dr. Robert Marvinney, State Geologist of Maine, in September 2006.
Osberg, P. H., Hussey, A.M., and Boone, G. M., 1985, Bedrock geologic map of Maine: Maine Geological Survey, Dept. of Conserv., scale 1:500,000.
Show this information as [XML]