Hietanen, Anna Martta

68 items:

Photomicrograph showing small round garnet crystals (black) in a microcline-bearing light-colored band in the course-grained gneiss. Clearwater County, Idaho. circa 1950. Album caption: Photomicrograph showing small round garnet crystals (black) in a microcline-bearing light-colored band in the course-grained gneiss. Just north of locality 428. pla-plagioclase; mi-microline; qu-quartz. crossed nicols. Clearwater County, Idaho. c. 1950. Published as figure 61B in U.S. Geological Survey. Professional paper 344-A. 1962. Categories: Image; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Clearwater County, Idaho, Photographers, Photographers, photo print
Photomicrograph of the rock shown in A. Clearwater County, Idaho. circa 1957. Album caption: Photomicrograph of the rock shown in A. Small plagioclase laths (pl) and biotite flakes (B) are included in anhedral grains of orthoclase (or) and quartz (Q). Crossed nicols. Clearwater county, Idaho. c. 1957. Published as figure 6B in U.S. Geological Survey. Professional paper 344-D. 1963. Categories: Image; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Clearwater County, Idaho, Photographers, Photographers, photo print
A polished hand specimen of thin laminated gneissic layer in the schist. Clearwater County, Idaho. circa 1950. Album caption: A polished hand specimen of thin laminated gneissic layer in the schist. The dark laminae consist of sillimanite and biotite. The light layers are quartz, plagioclase, and some garnet. Clearwater County, Idaho. c. 1950. Published as figure 8 in U.S. Geological Survey. Professional paper 344-A. 1962. Categories: Image; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Clearwater County, Idaho, Photographers, Photographers, photo print
Polished hand specimen of the metasomatic plagioclase (An50) - biotite-garnet rock from 1 mile east of the mouth of Elk Creek. Clearwater County, Idaho. circa 1950. Polished hand specimen of the metasomatic plagioclase (An50) - biotite-garnet rock from 1 mile east of the mouth of Elk Creek. All light-colored minerals are andesine (a); the dark round grains ate (sic) garnet (g); biotite (b) occurs between the other minerals. Clearwater County, Idaho. c. 1950. Published as figure 80A in U.S. Geological Survey. Professional paper 344-A. 1962. Categories: Image; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Clearwater County, Idaho, Photographers, Photographers, photo print
Tabular plagioclase crystals oriented parallel to the foliation in hornblende-biotite quartz diorite of the Bucks Lake pluton. Plumas County, California. circa 1967. Album caption: Tabular plagioclase crystals oriented parallel to the foliation in hornblende-biotite quartz diorite of the Bucks Lake pluton. Quartz is in interstitial grains of medium size. Hornblende and biotite are either in individual grains or clustered in irregular lamellae parallel to the foliation. One mile northeast of Bucks Lake. Crossed nicols. Plumas County, California. ca. 1967. (Photomicrograph) Published as figure 29 in U.S. Geological Survey. Professional paper 731. 1973. Categories: Image; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Photographers, Photographers, Plumas County, California, photo print

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