File:Lucas Dolomite (Middle Devonian; Auglaize Quarry, near Junction, Ohio, USA) 4 (48904564216).jpg
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Summary
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| Description |
This is part of a large, loose block at an active quarry in far-northwestern Ohio. We were forbidden from closely approaching the walls. Rock piles on the quarry floor were available for close examination and mineral collecting. This rock is from the Lucas Dolomite of the Detroit River Group. The Lucas appears to consist of both dolostone and limestone. Finely-laminated, brown dolostone is a common lithology in this unit (see the very top & bottom of this block). Lack of stratigraphic control in the loose quarry blocks makes additional, specific lithologic assessments difficult. Stylolites are also present in the Lucas. The finely laminated portions of the Lucas have been identified by other workers as microbial mats. The gray, non-bedded portion of this rock (= most of photo) is a breccia with vugs. Stratigraphy: Lucas Dolomite, upper Detroit River Group, Middle Devonian Locality: Auglaize Quarry (= Shelly Company, Stoneco's Auglaize Facility), southeast of the town of Junction, northeastern Paulding County, northwestern Ohio, USA (41° 10' 27.83" North latitude, 84° 25' 19.75" West longitude) |
| Date | |
| Source | Lucas Dolomite (Middle Devonian; Auglaize Quarry, near Junction, Ohio, USA) 4 |
| Author | James St. John |
Licensing
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/48904564216 (archive). It was reviewed on 18 October 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 02:53, 18 October 2019 | | 4,000 × 3,000 (7.16 MB) | Ser Amantio di Nicolao (talk | contribs) | Transferred from Flickr via #flickr2commons |
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