File:Tight folds in blue metachert with glaucophane-rich (ashy?) layers.jpg
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Summary
| Description |
English: Blue folded metacherts with glaucophane-rich (ashy?) layers, exposed in outcrops on Kayak Beach, Angel Island, northern San Francisco Bay. |
| Date | |
| Source | Own work |
| Author | Callanbentley |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 08:45, 1 October 2019 | | 5,472 × 3,648 (8.21 MB) | Callanbentley | User created page with UploadWizard |
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