SAMPLE_ID:  03MW0112

DATE: 6/9/1998

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): -50.97

Elevation of the
top of casing (m): 39.73

Total thickness of strata
penetrated by the well (m): 93.27

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