Proposed Miami Impact Crater Identified as a Solutional Doline of Oolictic Limestone
This investigation addresses the discovery of a proposed impact crater located off the coast of Miami, FL under the North Atlantic Ocean. A preliminary analysis of bathymetry data obtained from the National Oceanic and Atmospheric Administration implied a morphology consistent with a complex crater...
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ftdatacite:10.48550/arxiv.2007.06420 2023-05-15T17:34:52+02:00 Proposed Miami Impact Crater Identified as a Solutional Doline of Oolictic Limestone Paris, Antonio Robinson, Ryan Schwartz, Skye 2020 https://dx.doi.org/10.48550/arxiv.2007.06420 https://arxiv.org/abs/2007.06420 unknown arXiv arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ Earth and Planetary Astrophysics astro-ph.EP Geophysics physics.geo-ph FOS Physical sciences article-journal Article ScholarlyArticle Text 2020 ftdatacite https://doi.org/10.48550/arxiv.2007.06420 2022-03-10T15:29:18Z This investigation addresses the discovery of a proposed impact crater located off the coast of Miami, FL under the North Atlantic Ocean. A preliminary analysis of bathymetry data obtained from the National Oceanic and Atmospheric Administration implied a morphology consistent with a complex crater produced by a hypervelocity impact event of extraterrestrial origin. The proposed impact features include a central peak, concentric rings, and an ejecta field to the northwest. Analysis of geological data from the US Geological Survey places the strata overlying the proposed impact site as Miami Limestone, Pleistocene, accumulated during Marine Isotope Stage 5e, thereby placing the maximum age of the proposed impact crater at 80 ka to 130 ka. Three other competing hypotheses for the formation of the structure, namely a controlled maritime explosion, radial lava flow from volcano, or a depressed bioherm, doline, or karst (solutional depression) were explored throughout the investigation. To confirm the proposed structure as an impact crater, an in-situ underwater expedition was organized by Planetary Sciences, Inc. specifically to ascertain whether planar formations, shatter cones, and shock metamorphic and or other meteoritic properties were present. After analyzing the geological samples collected at the proposed impact crater, examining the morphology of analogous geologic structures, and evaluating competing hypotheses, we conclude that the structure is a solutional doline formed by the uneven dissolution of the Miami Limestone, and, accordingly, do not recommend that the structure be indexed in the Earth Impact Database : 10 Pages, 11 Figures Article in Journal/Newspaper North Atlantic DataCite Metadata Store (German National Library of Science and Technology) |
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Earth and Planetary Astrophysics astro-ph.EP Geophysics physics.geo-ph FOS Physical sciences |
spellingShingle |
Earth and Planetary Astrophysics astro-ph.EP Geophysics physics.geo-ph FOS Physical sciences Paris, Antonio Robinson, Ryan Schwartz, Skye Proposed Miami Impact Crater Identified as a Solutional Doline of Oolictic Limestone |
topic_facet |
Earth and Planetary Astrophysics astro-ph.EP Geophysics physics.geo-ph FOS Physical sciences |
description |
This investigation addresses the discovery of a proposed impact crater located off the coast of Miami, FL under the North Atlantic Ocean. A preliminary analysis of bathymetry data obtained from the National Oceanic and Atmospheric Administration implied a morphology consistent with a complex crater produced by a hypervelocity impact event of extraterrestrial origin. The proposed impact features include a central peak, concentric rings, and an ejecta field to the northwest. Analysis of geological data from the US Geological Survey places the strata overlying the proposed impact site as Miami Limestone, Pleistocene, accumulated during Marine Isotope Stage 5e, thereby placing the maximum age of the proposed impact crater at 80 ka to 130 ka. Three other competing hypotheses for the formation of the structure, namely a controlled maritime explosion, radial lava flow from volcano, or a depressed bioherm, doline, or karst (solutional depression) were explored throughout the investigation. To confirm the proposed structure as an impact crater, an in-situ underwater expedition was organized by Planetary Sciences, Inc. specifically to ascertain whether planar formations, shatter cones, and shock metamorphic and or other meteoritic properties were present. After analyzing the geological samples collected at the proposed impact crater, examining the morphology of analogous geologic structures, and evaluating competing hypotheses, we conclude that the structure is a solutional doline formed by the uneven dissolution of the Miami Limestone, and, accordingly, do not recommend that the structure be indexed in the Earth Impact Database : 10 Pages, 11 Figures |
format |
Article in Journal/Newspaper |
author |
Paris, Antonio Robinson, Ryan Schwartz, Skye |
author_facet |
Paris, Antonio Robinson, Ryan Schwartz, Skye |
author_sort |
Paris, Antonio |
title |
Proposed Miami Impact Crater Identified as a Solutional Doline of Oolictic Limestone |
title_short |
Proposed Miami Impact Crater Identified as a Solutional Doline of Oolictic Limestone |
title_full |
Proposed Miami Impact Crater Identified as a Solutional Doline of Oolictic Limestone |
title_fullStr |
Proposed Miami Impact Crater Identified as a Solutional Doline of Oolictic Limestone |
title_full_unstemmed |
Proposed Miami Impact Crater Identified as a Solutional Doline of Oolictic Limestone |
title_sort |
proposed miami impact crater identified as a solutional doline of oolictic limestone |
publisher |
arXiv |
publishDate |
2020 |
url |
https://dx.doi.org/10.48550/arxiv.2007.06420 https://arxiv.org/abs/2007.06420 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_rights |
arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
op_doi |
https://doi.org/10.48550/arxiv.2007.06420 |
_version_ |
1766133845443215360 |