Filters: Tags: Gneiss (X) > Categories: Image (X)

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Gneiss at Escoheag Hill. Washington County, Rhode Island. 1963. Gneiss at Escoheag Hill. Blocks in trail shelter 1.75 miles south, 32 degrees east of the lookout tower atop Escoheag Hill. Exeter. Washington County, Rhode Island. October 1963. Categories: Image; Tags: Feininger, T.G. Collection, Gneiss, Photographers, Washington County, Rhode Island, photo print Andesine-augite gneiss. Bartow County, Georgia. 1944. Photomicrograph of andesine-augite gneiss, showing texture of the rock and association of minerals; the andesine shows strong twinning. Other minerals are augite, a, marginally altered to uralite; biotite, b; orthoclase, o; black areas are ilmenite. Crossed nicols. Bartow County, Georgia. Circa 1944. Plate 6-D, in U.S.Geological Survey Professional paper 224. 1950. Categories: Image; Tags: Bartow County, Georgia, Gneiss, Photomicrographs, photo print Gneiss at Escoheag Hill. Washington County, Rhode Island. 1962. Gneiss at Escoheag Hill. Strong primary flow structure. Thirteen feet below an amphibolite inclusion. Microcline phenocrysts moderately fractured. Pronounced biotite warp-around. Conspicuous magnetite octahedra. Pencil (six inches long) parallels foliation. 0.84 mile south, 27 degrees east of the lookout tower on Escoheag Hill. Exeter. Washington County, Rhode Island. November 1962. Categories: Image; Tags: Feininger, T.G. Collection, Gneiss, Photographers, Washington County, Rhode Island, photo print Gneiss at Escoheag Hill. Washington County, Rhode Island. 1962. Gneiss at Escoheag Hill. Strong primary flow structure. Thirteen feet below an amphibolite inclusion. Microcline phenocrysts moderately fractured. Pronounced biotite warp-around. Conspicuous magnetite octahedra. Pencil (six inches long) parallels foliation. 0.84 mile south, 27 degrees east of the lookout tower on Escoheag Hill. Exeter. Washington County, Rhode Island. November 1962. Categories: Image; Tags: Feininger, T.G. Collection, Gneiss, Photographers, Washington County, Rhode Island, photo print Swarm of Hope Valley Alaskite Gneiss sills in gneiss at Escoheag Hill. Washington County, Rhode Island. 1963. Swarm of Hope Valley Alaskite Gneiss sills (locally discordant) in gneiss at Escoheag Hill. 1.67 miles south, 33 degrees east of the lookout tower atop Escoheag Hill. Exeter. Washington County, Rhode Island. October 1963. Categories: Image; Tags: Feininger, T.G. Collection, Gneiss, Photographers, Washington County, Rhode Island, photo print