Metamorphic mineral assemblages of slightly calcic pelitic rocks in and around the Taconic allochton. Southwestern Massachusetts and adjacent Connecticut and New York. circa 1966.
Dates
Date Taken
1966
Summary
Abum caption: Metamorphic mineral assemblages of slightly calcic pelitic rocks in and around the Taconic allochton. Photomicrographs of sample 191-1 showing chlorite (Ch) rimming magnetite (Mt) (plane-polarized light). A "ghost" crystal of chloritoid ("Cd") is also shown. The magnetite and chloritoid are interpreted to be relicts of an erlier episode of metamorphism. Southwestern Massachusetts and adjacent Connecticut and New York. ca. 1966. Published as figure 19 in U.S. Geological Survey. Professional paper 1113. 1981.
Summary
Abum caption: Metamorphic mineral assemblages of slightly calcic pelitic rocks in and around the Taconic allochton. Photomicrographs of sample 191-1 showing chlorite (Ch) rimming magnetite (Mt) (plane-polarized light). A "ghost" crystal of chloritoid ("Cd") is also shown. The magnetite and chloritoid are interpreted to be relicts of an erlier episode of metamorphism. Southwestern Massachusetts and adjacent Connecticut and New York. ca. 1966.
Published as figure 19 in U.S. Geological Survey. Professional paper 1113. 1981.
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Metamorphic mineral assemblages of slightly calcic pelitic rocks in and around the Taconic Allochthon, southwestern Massachusetts and adjacent Connecticut and New York. Professional Paper 1113.
Available in the U.S. Geological Survey Denver Library Photographic Collection, Zen, E-An Collection.
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