Weathering of granite in Antarctica, I: Light penetration in to rock and implications for rock weathering and endolithic communities.
Where rocks are composed of translucent minerals, light penetrates the rock and, in so doing, impacts on the thermal conditions. Where minerals are not translucent all the heat transformation must be at the rock surface, and steep thermal gradients can occur. Where light does penetrate, a component...
Published in: | Earth Surface Processes and Landforms |
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Online Access: | http://hdl.handle.net/11383/1674444 https://doi.org/10.1002/esp.1618 |
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ftuninsubriairis:oai:irinsubria.uninsubria.it:11383/1674444 2024-04-21T07:49:39+00:00 Weathering of granite in Antarctica, I: Light penetration in to rock and implications for rock weathering and endolithic communities. HALL K STRINI A. GUGLIELMIN, MAURO Hall, K Guglielmin, Mauro Strini, A. 2008 http://hdl.handle.net/11383/1674444 https://doi.org/10.1002/esp.1618 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000253695100009 volume:33 firstpage:295 lastpage:307 journal:EARTH SURFACE PROCESSES AND LANDFORMS http://hdl.handle.net/11383/1674444 doi:10.1002/esp.1618 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-39549112299 info:eu-repo/semantics/closedAccess light penetration weathering endolithic organism granite Antarctica info:eu-repo/semantics/article 2008 ftuninsubriairis https://doi.org/10.1002/esp.1618 2024-03-28T01:21:01Z Where rocks are composed of translucent minerals, light penetrates the rock and, in so doing, impacts on the thermal conditions. Where minerals are not translucent all the heat transformation must be at the rock surface, and steep thermal gradients can occur. Where light does penetrate, a component of the incoming radiation is transformed to heat at differing depths within the rock, thereby decreasing the thermal gradient. Equally, light transmissive minerals facilitate endolithic communities, which can also play a role in rock weathering. The attribute of light transmission within rock and the impact this has on the resulting thermal conditions has not been considered within rock weathering studies. An attempt was made to monitor the amount of light penetrating the outer 2 mm of coarse granite under Antarctic summer conditions and to evaluate the thermal impact of this. It was found that the amount of light penetration at this site exceeded modeled or postulated values from biological studies and that it could significantly impact the thermal conditions within the outer shell of the rock. Although the resulting data highlighted a number of flaws in the experimental procedure, sufficient information was generated to provide the first assessment of the range of thermal responses due to light transmissive minerals in rock. Article in Journal/Newspaper Antarc* Antarctic Antarctica IRInSubria - Institutional Repository Insubria (Università degli Studi dell’Insubria) Earth Surface Processes and Landforms 33 2 295 307 |
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Open Polar |
collection |
IRInSubria - Institutional Repository Insubria (Università degli Studi dell’Insubria) |
op_collection_id |
ftuninsubriairis |
language |
English |
topic |
light penetration weathering endolithic organism granite Antarctica |
spellingShingle |
light penetration weathering endolithic organism granite Antarctica HALL K STRINI A. GUGLIELMIN, MAURO Weathering of granite in Antarctica, I: Light penetration in to rock and implications for rock weathering and endolithic communities. |
topic_facet |
light penetration weathering endolithic organism granite Antarctica |
description |
Where rocks are composed of translucent minerals, light penetrates the rock and, in so doing, impacts on the thermal conditions. Where minerals are not translucent all the heat transformation must be at the rock surface, and steep thermal gradients can occur. Where light does penetrate, a component of the incoming radiation is transformed to heat at differing depths within the rock, thereby decreasing the thermal gradient. Equally, light transmissive minerals facilitate endolithic communities, which can also play a role in rock weathering. The attribute of light transmission within rock and the impact this has on the resulting thermal conditions has not been considered within rock weathering studies. An attempt was made to monitor the amount of light penetrating the outer 2 mm of coarse granite under Antarctic summer conditions and to evaluate the thermal impact of this. It was found that the amount of light penetration at this site exceeded modeled or postulated values from biological studies and that it could significantly impact the thermal conditions within the outer shell of the rock. Although the resulting data highlighted a number of flaws in the experimental procedure, sufficient information was generated to provide the first assessment of the range of thermal responses due to light transmissive minerals in rock. |
author2 |
Hall, K Guglielmin, Mauro Strini, A. |
format |
Article in Journal/Newspaper |
author |
HALL K STRINI A. GUGLIELMIN, MAURO |
author_facet |
HALL K STRINI A. GUGLIELMIN, MAURO |
author_sort |
HALL K |
title |
Weathering of granite in Antarctica, I: Light penetration in to rock and implications for rock weathering and endolithic communities. |
title_short |
Weathering of granite in Antarctica, I: Light penetration in to rock and implications for rock weathering and endolithic communities. |
title_full |
Weathering of granite in Antarctica, I: Light penetration in to rock and implications for rock weathering and endolithic communities. |
title_fullStr |
Weathering of granite in Antarctica, I: Light penetration in to rock and implications for rock weathering and endolithic communities. |
title_full_unstemmed |
Weathering of granite in Antarctica, I: Light penetration in to rock and implications for rock weathering and endolithic communities. |
title_sort |
weathering of granite in antarctica, i: light penetration in to rock and implications for rock weathering and endolithic communities. |
publishDate |
2008 |
url |
http://hdl.handle.net/11383/1674444 https://doi.org/10.1002/esp.1618 |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000253695100009 volume:33 firstpage:295 lastpage:307 journal:EARTH SURFACE PROCESSES AND LANDFORMS http://hdl.handle.net/11383/1674444 doi:10.1002/esp.1618 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-39549112299 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1002/esp.1618 |
container_title |
Earth Surface Processes and Landforms |
container_volume |
33 |
container_issue |
2 |
container_start_page |
295 |
op_container_end_page |
307 |
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1796933641241100288 |