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Photomicrograph of highly mashed gabbro. New London County, Connecticut. 1904.

Dates

Date Taken
1904

Summary

Photomicrograph of highly mashed gabbro, the feldspars have suffered some microscopic faulting and rotating, The uralite needles have assumed a schistose arrangement and also fill fault cracks in the feldspar. The ilmenite also has recrystallized into a distinctly schistose arrangement. Magnified 30 diameters. Nicols crossed. New London County, Connecticut. 1904. Plate 11-A in U.S. Geological Survey. Bulletin 492. 1912.

Contacts

Data Owner :
U.S. Geological Survey
Photographer :
Loughlin, Gerald Francis

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Identifiers

Type Scheme Key
name photoLibrary lgf00317
number photoLibrary 22400
batch photoLibrary btch355
number_in_book photoLibrary 317

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