A Geoscience Digital Image Library
A Geoscience Digital Image Library
| Title | Anorthosite from Split Rock Lighthouse |
|---|---|
| Description | Anorthosites are plutonic igneous rocks composed almost entirely of plagioclase. They are closely related to gabbros, and the two rock types grade into each other. This sample is from part of the Duluth Gabbro Series, on the north shore of Lake Superior, Minnesota. |
| Geologic province | Duluth Complex |
| Location | USA ▹ Minnesota. Near Two Harbors. Near Split Rock Lighthouse. |
| Photographer | Nessa Eull. 2001-05-15. |
| Collection | Ward’s University Rock Collection #125. |
| Key words | anorthosite, Minnesota, Duluth Gabbro, plagioclase |
| Tech details | 691 KB. Hand specimen. Fugifilm FinePix S1Pro digita. |
| GeoDIL number | 453 |
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