File:Garden Cave (San Salvador Island, Bahamas) 4 (16425925031).jpg
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| Description |
Garden Cave, located near the hilltop south of Reckley Hill Pond & north of the eastern end of Crescent Pond, northeastern San Salvador Island, eastern Bahamas. Garden Cave is hosted in a lithified sand dune ridge composed of aragonitic calcarenite limestones of the Owl's Hole Formation (Middle Pleistocene). This cave is a partially collapsed flank margin cave. Flank margin caves form at the flanks of carbonate islands and at the margins of fresh-groundwater lenses. As such, flank margin caves are phreatic features. In the vicinity of the seawater-freshwater mixing zone (halocline) of a groundwater lens (see diagram - www.carbonatecreek.com/caves/images/carbisland.gif), relatively rapid dissolution of limestone occurs due to the high aggressivity of the water. Limestone dissolution at Garden Cave occurred during the Middle Pleistocene and/or Late Pleistocene. Flank margin caves have no surface entrances. Access to them occurs only after surficial erosion intercepts chambers or passages. Garden Cave is an erosional remnant of a larger flank margin cave. Much of the remaining cave has large to small ceiling collapses, resulting in windows (a.k.a. skylights) - subvertical conduits and openings between the land surface and cave passages or rooms. The cave is now partially filled with fine-grained sediments, limestone rubble, and soil. |
| Date | |
| Source | Garden Cave (San Salvador Island, Bahamas) 4 |
| Author | James St. John |
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This image was originally posted to Flickr by jsj1771 at https://www.flickr.com/photos/47445767@N05/16425925031. It was reviewed on 2 March 2015 by FlickreviewR 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 | |
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| current | 21:10, 2 March 2015 | | 4,288 × 2,848 (3.74 MB) | Jacopo Werther (talk | contribs) | Transferred from Flickr via Flickr2Commons |
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