Speleothem and biofilm formation in a granite/dolerite cave, Northern Sweden
Tjuv-Antes grotta (Tjuv-Ante's Cave) located in northern Sweden is a round-abraded sea cave ('tunnel cave'), about 30 m in length, formed by rock-water abrasion in a dolerite dyke in granite gneiss. Abundant speleothems are restricted to the inner, mafic parts of the cave and absent o...
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Enheten för paleobiologi
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ftnrm:oai:DiVA.org:nrm-386 2023-05-15T17:44:27+02:00 Speleothem and biofilm formation in a granite/dolerite cave, Northern Sweden Sallstedt, Therese Ivarsson, Magnus Lundberg, Johannes Sjöberg, Rabbe Vidal Romaní, Juan Ramón 2014 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:nrm:diva-386 https://doi.org/10.5038/1827-806X.43.3.7 eng eng Enheten för paleobiologi Enheten för botanik Nordic Center for Earth Evolution (NordCEE); Department of Biology, University of Southern Denmark Nordic Center for Earth Evolution (NordCEE) University of Coruña, Campus de Elviña, ES-15071 Coruña, Spain International Journal of Speleology, 0392-6672, 2014, 43:3, s. 305-313 http://urn.kb.se/resolve?urn=urn:nbn:se:nrm:diva-386 doi:10.5038/1827-806X.43.3.7 info:eu-repo/semantics/openAccess biospeleothem Actinobacteria lamination pseudokarst sequestration of CO2 Geochemistry Geokemi Microbiology Mikrobiologi Article in journal info:eu-repo/semantics/article text 2014 ftnrm https://doi.org/10.5038/1827-806X.43.3.7 2021-10-08T07:21:15Z Tjuv-Antes grotta (Tjuv-Ante's Cave) located in northern Sweden is a round-abraded sea cave ('tunnel cave'), about 30 m in length, formed by rock-water abrasion in a dolerite dyke in granite gneiss. Abundant speleothems are restricted to the inner, mafic parts of the cave and absent on granite parts. The speleothems are of two types: cylindrical (coralloid, popcorn-like), and flowstone (thin crusts). Coralloids correspond to terrestrial stromatolite speleothems in which layers of light calcite alternate with dark, silica-rich laminae. The dark laminae are also enriched in carbon and contain incorporated remains of microorganisms. Two types of microbial communities can be distinguished associated with the speleothems: an Actinobacteria-like biofilm and a fungal community. Actinobacteria seem to play an important role in the formation of speleothem while the fungal community acts as both a constructive and a destructive agent. A modern biofilm dominated by Actinobacteria is present in the speleothem-free parts of the dolerite and located in cave ceiling cracks. These biofilms may represent sites of early speleothem formation. Because of its unusual position in between two types of host rock, Tjuv-Ante's Cave represents a unique environment in which to study differences in microbe-rock interactions and speleothem genesis between the granite and dolerite host rock. Our study shows that the mafic rock is superior to the granite in hosting a microbial community and to support formation of speleothems. Article in Journal/Newspaper Northern Sweden Swedish Museum of Natural History: Publications (DiVA) International Journal of Speleology 43 3 305 313 |
institution |
Open Polar |
collection |
Swedish Museum of Natural History: Publications (DiVA) |
op_collection_id |
ftnrm |
language |
English |
topic |
biospeleothem Actinobacteria lamination pseudokarst sequestration of CO2 Geochemistry Geokemi Microbiology Mikrobiologi |
spellingShingle |
biospeleothem Actinobacteria lamination pseudokarst sequestration of CO2 Geochemistry Geokemi Microbiology Mikrobiologi Sallstedt, Therese Ivarsson, Magnus Lundberg, Johannes Sjöberg, Rabbe Vidal Romaní, Juan Ramón Speleothem and biofilm formation in a granite/dolerite cave, Northern Sweden |
topic_facet |
biospeleothem Actinobacteria lamination pseudokarst sequestration of CO2 Geochemistry Geokemi Microbiology Mikrobiologi |
description |
Tjuv-Antes grotta (Tjuv-Ante's Cave) located in northern Sweden is a round-abraded sea cave ('tunnel cave'), about 30 m in length, formed by rock-water abrasion in a dolerite dyke in granite gneiss. Abundant speleothems are restricted to the inner, mafic parts of the cave and absent on granite parts. The speleothems are of two types: cylindrical (coralloid, popcorn-like), and flowstone (thin crusts). Coralloids correspond to terrestrial stromatolite speleothems in which layers of light calcite alternate with dark, silica-rich laminae. The dark laminae are also enriched in carbon and contain incorporated remains of microorganisms. Two types of microbial communities can be distinguished associated with the speleothems: an Actinobacteria-like biofilm and a fungal community. Actinobacteria seem to play an important role in the formation of speleothem while the fungal community acts as both a constructive and a destructive agent. A modern biofilm dominated by Actinobacteria is present in the speleothem-free parts of the dolerite and located in cave ceiling cracks. These biofilms may represent sites of early speleothem formation. Because of its unusual position in between two types of host rock, Tjuv-Ante's Cave represents a unique environment in which to study differences in microbe-rock interactions and speleothem genesis between the granite and dolerite host rock. Our study shows that the mafic rock is superior to the granite in hosting a microbial community and to support formation of speleothems. |
format |
Article in Journal/Newspaper |
author |
Sallstedt, Therese Ivarsson, Magnus Lundberg, Johannes Sjöberg, Rabbe Vidal Romaní, Juan Ramón |
author_facet |
Sallstedt, Therese Ivarsson, Magnus Lundberg, Johannes Sjöberg, Rabbe Vidal Romaní, Juan Ramón |
author_sort |
Sallstedt, Therese |
title |
Speleothem and biofilm formation in a granite/dolerite cave, Northern Sweden |
title_short |
Speleothem and biofilm formation in a granite/dolerite cave, Northern Sweden |
title_full |
Speleothem and biofilm formation in a granite/dolerite cave, Northern Sweden |
title_fullStr |
Speleothem and biofilm formation in a granite/dolerite cave, Northern Sweden |
title_full_unstemmed |
Speleothem and biofilm formation in a granite/dolerite cave, Northern Sweden |
title_sort |
speleothem and biofilm formation in a granite/dolerite cave, northern sweden |
publisher |
Enheten för paleobiologi |
publishDate |
2014 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:nrm:diva-386 https://doi.org/10.5038/1827-806X.43.3.7 |
genre |
Northern Sweden |
genre_facet |
Northern Sweden |
op_relation |
International Journal of Speleology, 0392-6672, 2014, 43:3, s. 305-313 http://urn.kb.se/resolve?urn=urn:nbn:se:nrm:diva-386 doi:10.5038/1827-806X.43.3.7 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5038/1827-806X.43.3.7 |
container_title |
International Journal of Speleology |
container_volume |
43 |
container_issue |
3 |
container_start_page |
305 |
op_container_end_page |
313 |
_version_ |
1766146676157841408 |