Thenardite after mirabilite deposits as a cool climate indicator in the geological record: lower Miocene of central Spain
Salt deposits are commonly used as indicators of different paleoclimates and sedimentary environments, as well as being geological resources of great economic interest. Ordinarily, the presence of salt deposits is related to warm and arid environmental conditions, but there are salts, like mirabilit...
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fttriple:oai:gotriple.eu:IycnCMK0ihXtyZTf1nPp5 2023-05-15T13:38:12+02:00 Thenardite after mirabilite deposits as a cool climate indicator in the geological record: lower Miocene of central Spain Herrero, M. J. Escavy, J. I. Schreiber, B. C. 2018-09-27 https://doi.org/10.5194/cp-11-1-2015 https://cp.copernicus.org/articles/11/1/2015/ en eng Copernicus Publications doi:10.5194/cp-11-1-2015 10670/1.rk3jr4 1814-9324 1814-9332 https://cp.copernicus.org/articles/11/1/2015/ undefined Geographica Helvetica - geography eISSN: 1814-9332 geo envir Text https://vocabularies.coar-repositories.org/resource_types/c_18cf/ Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2018 fttriple https://doi.org/10.5194/cp-11-1-2015 2023-01-22T19:13:02Z Salt deposits are commonly used as indicators of different paleoclimates and sedimentary environments, as well as being geological resources of great economic interest. Ordinarily, the presence of salt deposits is related to warm and arid environmental conditions, but there are salts, like mirabilite, that form by cooling and a concentration mechanism based on cooling and/or freezing. The diagenetic transformation of mirabilite into thenardite in the upper part of the lower Miocene unit of the Tajo basin (Spain) resulted in the largest reserves of this important industrial mineral in Europe. This unit was formed in a time period (~18.4 Ma) that, in other basins of the Iberian Peninsula, is characterized by the existence of particular mammal assemblages appropriate to a relatively cool and arid climate. Determining the origin of the thenardite deposits as related to the diagenetic alteration of a pre-existing mirabilite permits the establishment and characterization of the sedimentary environment where it was formed and also suggests use as a possible analog with comparable deposits from extreme conditions such as Antarctica or Mars. Article in Journal/Newspaper Antarc* Antarctica Unknown Climate of the Past 11 1 1 13 |
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geo envir Herrero, M. J. Escavy, J. I. Schreiber, B. C. Thenardite after mirabilite deposits as a cool climate indicator in the geological record: lower Miocene of central Spain |
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geo envir |
description |
Salt deposits are commonly used as indicators of different paleoclimates and sedimentary environments, as well as being geological resources of great economic interest. Ordinarily, the presence of salt deposits is related to warm and arid environmental conditions, but there are salts, like mirabilite, that form by cooling and a concentration mechanism based on cooling and/or freezing. The diagenetic transformation of mirabilite into thenardite in the upper part of the lower Miocene unit of the Tajo basin (Spain) resulted in the largest reserves of this important industrial mineral in Europe. This unit was formed in a time period (~18.4 Ma) that, in other basins of the Iberian Peninsula, is characterized by the existence of particular mammal assemblages appropriate to a relatively cool and arid climate. Determining the origin of the thenardite deposits as related to the diagenetic alteration of a pre-existing mirabilite permits the establishment and characterization of the sedimentary environment where it was formed and also suggests use as a possible analog with comparable deposits from extreme conditions such as Antarctica or Mars. |
format |
Article in Journal/Newspaper |
author |
Herrero, M. J. Escavy, J. I. Schreiber, B. C. |
author_facet |
Herrero, M. J. Escavy, J. I. Schreiber, B. C. |
author_sort |
Herrero, M. J. |
title |
Thenardite after mirabilite deposits as a cool climate indicator in the geological record: lower Miocene of central Spain |
title_short |
Thenardite after mirabilite deposits as a cool climate indicator in the geological record: lower Miocene of central Spain |
title_full |
Thenardite after mirabilite deposits as a cool climate indicator in the geological record: lower Miocene of central Spain |
title_fullStr |
Thenardite after mirabilite deposits as a cool climate indicator in the geological record: lower Miocene of central Spain |
title_full_unstemmed |
Thenardite after mirabilite deposits as a cool climate indicator in the geological record: lower Miocene of central Spain |
title_sort |
thenardite after mirabilite deposits as a cool climate indicator in the geological record: lower miocene of central spain |
publisher |
Copernicus Publications |
publishDate |
2018 |
url |
https://doi.org/10.5194/cp-11-1-2015 https://cp.copernicus.org/articles/11/1/2015/ |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Geographica Helvetica - geography eISSN: 1814-9332 |
op_relation |
doi:10.5194/cp-11-1-2015 10670/1.rk3jr4 1814-9324 1814-9332 https://cp.copernicus.org/articles/11/1/2015/ |
op_rights |
undefined |
op_doi |
https://doi.org/10.5194/cp-11-1-2015 |
container_title |
Climate of the Past |
container_volume |
11 |
container_issue |
1 |
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1 |
op_container_end_page |
13 |
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1766102484544126976 |