Microbiological observations in the caves of Grottedal, Kronprins Christian Land, northeast Greenland
The caves of Grottedal, Kronprins Christian Land, northeast Greenland were examined for microbial activity during the 2019 Northeast Greenland Caves Project. Given the freezing temperatures, desiccating conditions, and poor organic content of these caves, little microbial activity was expected. None...
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British Cave Research Association
2020
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ftuloxford:oai:ora.ox.ac.uk:uuid:1032443c-843c-411a-a6ec-6c5cca26cb24 2023-05-15T16:26:31+02:00 Microbiological observations in the caves of Grottedal, Kronprins Christian Land, northeast Greenland Barton, HA Breley, GJ Smith, MP 2020-11-12 https://ora.ox.ac.uk/objects/uuid:1032443c-843c-411a-a6ec-6c5cca26cb24 eng eng British Cave Research Association https://ora.ox.ac.uk/objects/uuid:1032443c-843c-411a-a6ec-6c5cca26cb24 info:eu-repo/semantics/openAccess CC Attribution (CC BY) CC-BY Journal article 2020 ftuloxford 2022-06-28T20:06:03Z The caves of Grottedal, Kronprins Christian Land, northeast Greenland were examined for microbial activity during the 2019 Northeast Greenland Caves Project. Given the freezing temperatures, desiccating conditions, and poor organic content of these caves, little microbial activity was expected. Nonetheless, field observation demonstrated a surprising level of microbial activity, dominated by photosynthetic species in near-entrance zones. This included the presence of extremophilic green algae (chlorophytes), along with cyanobacteria that formed photokarren. Other microbial activity that was observed indirectly included microbialites and iron-oxide deposits, which might indicate microbial contributions to speleogenesis when the region was warmer and cave development was ongoing. The Grottedal area and caves have several environmental features in common with Mars: a polar desert under desiccating, low-light conditions. Nonetheless, observations at Grottedal indicate that significant microbial activity, which can generate long-term geochemical and geomorphological signatures, is possible. Such data suggest that the Grottedal caves could provide an important testbed for future astrobiological investigations and instrument development. Article in Journal/Newspaper Greenland Kronprins Christian land polar desert ORA - Oxford University Research Archive Greenland Kronprins Christian Land ENVELOPE(-22.000,-22.000,80.500,80.500) |
institution |
Open Polar |
collection |
ORA - Oxford University Research Archive |
op_collection_id |
ftuloxford |
language |
English |
description |
The caves of Grottedal, Kronprins Christian Land, northeast Greenland were examined for microbial activity during the 2019 Northeast Greenland Caves Project. Given the freezing temperatures, desiccating conditions, and poor organic content of these caves, little microbial activity was expected. Nonetheless, field observation demonstrated a surprising level of microbial activity, dominated by photosynthetic species in near-entrance zones. This included the presence of extremophilic green algae (chlorophytes), along with cyanobacteria that formed photokarren. Other microbial activity that was observed indirectly included microbialites and iron-oxide deposits, which might indicate microbial contributions to speleogenesis when the region was warmer and cave development was ongoing. The Grottedal area and caves have several environmental features in common with Mars: a polar desert under desiccating, low-light conditions. Nonetheless, observations at Grottedal indicate that significant microbial activity, which can generate long-term geochemical and geomorphological signatures, is possible. Such data suggest that the Grottedal caves could provide an important testbed for future astrobiological investigations and instrument development. |
format |
Article in Journal/Newspaper |
author |
Barton, HA Breley, GJ Smith, MP |
spellingShingle |
Barton, HA Breley, GJ Smith, MP Microbiological observations in the caves of Grottedal, Kronprins Christian Land, northeast Greenland |
author_facet |
Barton, HA Breley, GJ Smith, MP |
author_sort |
Barton, HA |
title |
Microbiological observations in the caves of Grottedal, Kronprins Christian Land, northeast Greenland |
title_short |
Microbiological observations in the caves of Grottedal, Kronprins Christian Land, northeast Greenland |
title_full |
Microbiological observations in the caves of Grottedal, Kronprins Christian Land, northeast Greenland |
title_fullStr |
Microbiological observations in the caves of Grottedal, Kronprins Christian Land, northeast Greenland |
title_full_unstemmed |
Microbiological observations in the caves of Grottedal, Kronprins Christian Land, northeast Greenland |
title_sort |
microbiological observations in the caves of grottedal, kronprins christian land, northeast greenland |
publisher |
British Cave Research Association |
publishDate |
2020 |
url |
https://ora.ox.ac.uk/objects/uuid:1032443c-843c-411a-a6ec-6c5cca26cb24 |
long_lat |
ENVELOPE(-22.000,-22.000,80.500,80.500) |
geographic |
Greenland Kronprins Christian Land |
geographic_facet |
Greenland Kronprins Christian Land |
genre |
Greenland Kronprins Christian land polar desert |
genre_facet |
Greenland Kronprins Christian land polar desert |
op_relation |
https://ora.ox.ac.uk/objects/uuid:1032443c-843c-411a-a6ec-6c5cca26cb24 |
op_rights |
info:eu-repo/semantics/openAccess CC Attribution (CC BY) |
op_rightsnorm |
CC-BY |
_version_ |
1766015437090324480 |