skip headerUSGS: science for a changing world -
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:  03MW0112

DATE: 6/9/1998

Sample: 03MW0112 - Orthogneiss


A fine-grained augen orthogneiss, the composition of sample 03MW0112 is estimated to be plagioclase (55%), K-feldspar (15%), quartz (20%), biotite (5%), sericite (5%) and trace epidote. Large (1-3mm), lenticluar plagioclase porphyroclasts are aligned in the foliation and wrapped by the quartz-biotite matrix. Minor gneissic banding is present as preferred bands of K-feldspar porphyroclasts aligned in the foliation.

Latitude: 41.66389

Longitude: -70.54265

Elevation of well site (m): 39.86

Elevation of the upper
bedrock surface (m):

Elevation of the
top of casing (m):

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

Zip file with full resolution image. skip navbar

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

skip footer
[an error occurred while processing this directive]