FT-Raman spectroscopic analysis of an Antarctic endolith
The FT-Raman spectra of an Antarctic endolith from the LTER site at Lake Hoare are reported. The specimen provides an unusual occurrence of endolithic colonization of an igneous rock substratum, which analyses as microcline feldspar. The presence of aragonite in the red biological stratum and calcit...
Published in: | International Journal of Astrobiology |
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Cambridge University Press (CUP)
2002
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Online Access: | http://dx.doi.org/10.1017/s1473550403001289 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S1473550403001289 |
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crcambridgeupr:10.1017/s1473550403001289 2024-06-23T07:47:44+00:00 FT-Raman spectroscopic analysis of an Antarctic endolith Jorge Villar, Susana E. Edwards, Howell G.M. Wynn-Williams, David D. Roger Worland, M. 2002 http://dx.doi.org/10.1017/s1473550403001289 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S1473550403001289 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms International Journal of Astrobiology volume 1, issue 4, page 349-355 ISSN 1473-5504 1475-3006 journal-article 2002 crcambridgeupr https://doi.org/10.1017/s1473550403001289 2024-06-05T04:04:01Z The FT-Raman spectra of an Antarctic endolith from the LTER site at Lake Hoare are reported. The specimen provides an unusual occurrence of endolithic colonization of an igneous rock substratum, which analyses as microcline feldspar. The presence of aragonite in the red biological stratum and calcite in a fissure of the rock which has not been subjected to colonization can be attributed to the penetration of calcareous deposits from shallow ground water in an earlier environment in the Dry Valleys. The green biological layer is composed of chlorophyll and β-carotene. Comparison with previous Raman spectroscopic work on endoliths in sedimentary Beacon sandstone is effected. Article in Journal/Newspaper Antarc* Antarctic Cambridge University Press Antarctic Hoare ENVELOPE(162.850,162.850,-77.633,-77.633) Lake Hoare ENVELOPE(162.850,162.850,-77.633,-77.633) International Journal of Astrobiology 1 4 349 355 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
description |
The FT-Raman spectra of an Antarctic endolith from the LTER site at Lake Hoare are reported. The specimen provides an unusual occurrence of endolithic colonization of an igneous rock substratum, which analyses as microcline feldspar. The presence of aragonite in the red biological stratum and calcite in a fissure of the rock which has not been subjected to colonization can be attributed to the penetration of calcareous deposits from shallow ground water in an earlier environment in the Dry Valleys. The green biological layer is composed of chlorophyll and β-carotene. Comparison with previous Raman spectroscopic work on endoliths in sedimentary Beacon sandstone is effected. |
format |
Article in Journal/Newspaper |
author |
Jorge Villar, Susana E. Edwards, Howell G.M. Wynn-Williams, David D. Roger Worland, M. |
spellingShingle |
Jorge Villar, Susana E. Edwards, Howell G.M. Wynn-Williams, David D. Roger Worland, M. FT-Raman spectroscopic analysis of an Antarctic endolith |
author_facet |
Jorge Villar, Susana E. Edwards, Howell G.M. Wynn-Williams, David D. Roger Worland, M. |
author_sort |
Jorge Villar, Susana E. |
title |
FT-Raman spectroscopic analysis of an Antarctic endolith |
title_short |
FT-Raman spectroscopic analysis of an Antarctic endolith |
title_full |
FT-Raman spectroscopic analysis of an Antarctic endolith |
title_fullStr |
FT-Raman spectroscopic analysis of an Antarctic endolith |
title_full_unstemmed |
FT-Raman spectroscopic analysis of an Antarctic endolith |
title_sort |
ft-raman spectroscopic analysis of an antarctic endolith |
publisher |
Cambridge University Press (CUP) |
publishDate |
2002 |
url |
http://dx.doi.org/10.1017/s1473550403001289 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S1473550403001289 |
long_lat |
ENVELOPE(162.850,162.850,-77.633,-77.633) ENVELOPE(162.850,162.850,-77.633,-77.633) |
geographic |
Antarctic Hoare Lake Hoare |
geographic_facet |
Antarctic Hoare Lake Hoare |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
International Journal of Astrobiology volume 1, issue 4, page 349-355 ISSN 1473-5504 1475-3006 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s1473550403001289 |
container_title |
International Journal of Astrobiology |
container_volume |
1 |
container_issue |
4 |
container_start_page |
349 |
op_container_end_page |
355 |
_version_ |
1802651892214398976 |