Lower Chicontepec shale formation, photo 2
Description on back: Alozan shales or lower Chicontepec shale in Garces River at Pastoria, on road to Tantoyuca. Aug. 2, 1920.
| Format: | Electronic |
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| Published: |
University of Alabama Libraries
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| Online Access: | http://purl.lib.ua.edu/108602 |