A Geoscience Digital Image Library
A Geoscience Digital Image Library
| Title | Thin section of biotite-hornblende granite |
|---|---|
| Description | This is the plain-polarized thin section photo of biotite-hornblende granite. The white areas are the plagioclase and quartz. The brownish area on the left is biotite and the right corner dark area is hornblende. The lighter areas that cut through the dark area on the right is K-feldspar (microcline). |
| Chronostratigraphy | Post Archean (Probably Keweenawan) |
| Geologic province | Minnesota River Valley Precambrian |
| Location | USA ▹ Minnesota ▹ Stearns. Near St. Cloud. |
| Photographer | Darla Sondrol. 2001-08-27. |
| Collection | Ward’s Collection of Classic North American Rocks #3. |
| Key words | granite, Minnesota, St. Cloud |
| Tech details | 966 KB. Thin section. Nikon FDX-35. |
| GeoDIL number | 1513 |
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