A Geoscience Digital Image Library
A Geoscience Digital Image Library
| Title | Asymmetrical recrystallization tails on feldspar porphyroclasts |
|---|---|
| Description | The mylonitized Ayer Granite from the Washusett mylonite zone in eastern Massachusetts (Goldstein, 1994, Tectonics) illustrates sigma-grain geometry. The view is 3.5 mm in long dimension, cut perpendicular to foliation and parallel to foliation, seen in plane polarized light. |
| Location | USA ▹ Massachusetts. Eastern Massachusetts. |
| Photographer | Arthur Goldstein. 1995. |
| Collection | Keck Structural Geology Slide Set #AG2. |
| Key words | porphyroclasts, mylonite, tails |
| Tech details | 684 KB. Thin section. |
| GeoDIL number | 3002 |
| Copyright | Arthur Goldstein |