Secondary minerals from salt caves in the Atacama Desert (Chile): a hyperarid and hypersaline environment with potential analogies to the Martian subsurface
open 7 Over the past 15 years several expeditions by French, American and especially Italian cavers have unveiled over 50 caves in the Cordillera de la Sal (Atacama Desert, Northern Chile). Many of these caves contain a variety of speleothems and minerals, some of which have rarely been observed wit...
Published in: | International Journal of Speleology |
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Società Speleologica Italiana
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Online Access: | http://hdl.handle.net/11567/947662 https://doi.org/10.5038/1827-806X.46.1.2094 |
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ftunivgenova:oai:iris.unige.it:11567/947662.6 2023-05-15T13:40:45+02:00 Secondary minerals from salt caves in the Atacama Desert (Chile): a hyperarid and hypersaline environment with potential analogies to the Martian subsurface 100022 - Dipartimento di Scienze della terra, dell'ambiente e della vita 557 2019-07-24T17:10:47Z application/pdf http://hdl.handle.net/11567/947662 https://doi.org/10.5038/1827-806X.46.1.2094 eng eng Società Speleologica Italiana 51 16 ELETTRONICO 66 46 (19) 2-s2.0-85011977283 http://hdl.handle.net/11567/947662 doi:10.5038/1827-806X.46.1.2094 WOS:000395945600005 cave minerals atacama martian 01- Contributo su rivista::01.01 - Articolo su rivista internazionale Comitato scientifico si 262 info:eu-repo/semantics/article 2019 ftunivgenova https://doi.org/10.5038/1827-806X.46.1.2094 2022-08-31T17:12:56Z open 7 Over the past 15 years several expeditions by French, American and especially Italian cavers have unveiled over 50 caves in the Cordillera de la Sal (Atacama Desert, Northern Chile). Many of these caves contain a variety of speleothems and minerals, some of which have rarely been observed within karst systems. Most of the secondary deposits in these caves are composed of halite, but also other halide, carbonate, sulphate, nitrate, phosphate, and silicate minerals have been found. Among the sixteen cave mineral species recognized, atacamite, darapskite, blödite, leonite, anhydrite, and especially antarcticite are worth mentioning. In one of the samples an unknown Ca-Sr-bearing chloride mineral has also been discovered, but it has not been possible to carry out detailed mineralogical analyses. These often-rare minerals have formed in this region due to the very extreme hyperarid and salt-rich environment. This research reports the mineralogical results and proposes the genetical mechanisms leading to the formation of antarcticite, powdery anhydrite, and the paragenesis of the halite-darapskite-blödite. This study also shows that Atacama caves may be excellent analogues to study weathering processes and subsurface secondary minerals in hyperarid and hypersaline environments on Mars. open De Waele J., Carbone C., Sanna L., Vattano M., Galli E., Sauro F., Forti P. De Waele, J.; Carbone, C.; Sanna, L.; Vattano, M.; Galli, E.; Sauro, F.; Forti, P. Article in Journal/Newspaper Antarc* Università degli Studi di Genova: CINECA IRIS Sanna ENVELOPE(12.047,12.047,66.506,66.506) International Journal of Speleology 46 1 51 66 |
institution |
Open Polar |
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Università degli Studi di Genova: CINECA IRIS |
op_collection_id |
ftunivgenova |
language |
English |
topic |
cave minerals atacama martian |
spellingShingle |
cave minerals atacama martian Secondary minerals from salt caves in the Atacama Desert (Chile): a hyperarid and hypersaline environment with potential analogies to the Martian subsurface |
topic_facet |
cave minerals atacama martian |
description |
open 7 Over the past 15 years several expeditions by French, American and especially Italian cavers have unveiled over 50 caves in the Cordillera de la Sal (Atacama Desert, Northern Chile). Many of these caves contain a variety of speleothems and minerals, some of which have rarely been observed within karst systems. Most of the secondary deposits in these caves are composed of halite, but also other halide, carbonate, sulphate, nitrate, phosphate, and silicate minerals have been found. Among the sixteen cave mineral species recognized, atacamite, darapskite, blödite, leonite, anhydrite, and especially antarcticite are worth mentioning. In one of the samples an unknown Ca-Sr-bearing chloride mineral has also been discovered, but it has not been possible to carry out detailed mineralogical analyses. These often-rare minerals have formed in this region due to the very extreme hyperarid and salt-rich environment. This research reports the mineralogical results and proposes the genetical mechanisms leading to the formation of antarcticite, powdery anhydrite, and the paragenesis of the halite-darapskite-blödite. This study also shows that Atacama caves may be excellent analogues to study weathering processes and subsurface secondary minerals in hyperarid and hypersaline environments on Mars. open De Waele J., Carbone C., Sanna L., Vattano M., Galli E., Sauro F., Forti P. De Waele, J.; Carbone, C.; Sanna, L.; Vattano, M.; Galli, E.; Sauro, F.; Forti, P. |
author2 |
100022 - Dipartimento di Scienze della terra, dell'ambiente e della vita 557 |
format |
Article in Journal/Newspaper |
title |
Secondary minerals from salt caves in the Atacama Desert (Chile): a hyperarid and hypersaline environment with potential analogies to the Martian subsurface |
title_short |
Secondary minerals from salt caves in the Atacama Desert (Chile): a hyperarid and hypersaline environment with potential analogies to the Martian subsurface |
title_full |
Secondary minerals from salt caves in the Atacama Desert (Chile): a hyperarid and hypersaline environment with potential analogies to the Martian subsurface |
title_fullStr |
Secondary minerals from salt caves in the Atacama Desert (Chile): a hyperarid and hypersaline environment with potential analogies to the Martian subsurface |
title_full_unstemmed |
Secondary minerals from salt caves in the Atacama Desert (Chile): a hyperarid and hypersaline environment with potential analogies to the Martian subsurface |
title_sort |
secondary minerals from salt caves in the atacama desert (chile): a hyperarid and hypersaline environment with potential analogies to the martian subsurface |
publisher |
Società Speleologica Italiana |
publishDate |
2019 |
url |
http://hdl.handle.net/11567/947662 https://doi.org/10.5038/1827-806X.46.1.2094 |
long_lat |
ENVELOPE(12.047,12.047,66.506,66.506) |
geographic |
Sanna |
geographic_facet |
Sanna |
genre |
Antarc* |
genre_facet |
Antarc* |
op_relation |
51 16 ELETTRONICO 66 46 (19) 2-s2.0-85011977283 http://hdl.handle.net/11567/947662 doi:10.5038/1827-806X.46.1.2094 WOS:000395945600005 |
op_doi |
https://doi.org/10.5038/1827-806X.46.1.2094 |
container_title |
International Journal of Speleology |
container_volume |
46 |
container_issue |
1 |
container_start_page |
51 |
op_container_end_page |
66 |
_version_ |
1766139309728989184 |