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U.S. Geological Survey Open-File Report 03-221
A Pictorial Survey of the Bedrock Beneath Western Cape Cod, Massachusetts

 Detailed Bedrock Photographskip navbar


SAMPLE_ID:  36MW1036

DATE: 8/16/2000

Sample: 36MW1036 - Basalt


Sample 36MW1036 is an olivine phyric vesicular basalt composed of plagioclase (60%), clinopyroxene (30%), chlorite (5%), and oxides (5%). 0.5 to 1-mm vesicles, as well as relict olivine phenocrysts, are filled with/replaced by chlorite. Plagioclase is turgid and occurs as bladed crystals. Oxides are probably magnetite or titanomagnetite. 

Latitude: 41.65106

Longitude: -70.50382

Elevation of well site (m): 32.91

Elevation of the upper
bedrock surface (m):

Elevation of the
top of casing (m):

Total thickness of strata
penetrated by the well (m):
 106.99 skip navbar

Zip file with full resolution image. skip navbar

OFR03-221 Home | Introduction | Bedrock Photographs | GIS Data Catalog

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