Carbon cycling at a site of present day serpentinization: the tables, Gros Morne National Park
This study addresses the origin of methane on Mars. A possible source of methane on Mars has been attributed to serpentinization. Active serpentinization is occurring in the subsurface at The Tablelands Ophiolite, in Gros Morne National Park, Newfoundland. Active serpentinization is evidenced by the...
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Memorial University of Newfoundland
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ftmemorialuniv:oai:research.library.mun.ca:11504 2023-10-01T03:56:27+02:00 Carbon cycling at a site of present day serpentinization: the tables, Gros Morne National Park Szponar, Natalie 2012 application/pdf https://research.library.mun.ca/11504/ https://research.library.mun.ca/11504/1/Szponar_Natalie.pdf en eng Memorial University of Newfoundland https://research.library.mun.ca/11504/1/Szponar_Natalie.pdf Szponar, Natalie <https://research.library.mun.ca/view/creator_az/Szponar=3ANatalie=3A=3A.html> (2012) Carbon cycling at a site of present day serpentinization: the tables, Gros Morne National Park. Masters thesis, Memorial University of Newfoundland. thesis_license Thesis NonPeerReviewed 2012 ftmemorialuniv 2023-09-03T06:48:19Z This study addresses the origin of methane on Mars. A possible source of methane on Mars has been attributed to serpentinization. Active serpentinization is occurring in the subsurface at The Tablelands Ophiolite, in Gros Morne National Park, Newfoundland. Active serpentinization is evidenced by the highly reducing (Eh~ -700mV), ultra-basic (pH 10-12) groundwater springs containing dissolved methane and other lower molecular weight hydrocarbon gases, and the presence of travertine deposits. -- The source of methane in the springs as determined to be non-microbial and attributed to either thermogenic or possible abiogenic synthesis. Despite this finding, the ultra-basic springs are an extreme environment for an extant microbial community. Phospholipid fatty acid (PLFA) analysis determined an abundance of gram-negative bacteria as well as the presence algae and fungal biomarkers; and carbon isotopic analysis of PLFA suggests both heterotrophic and autotrophic metabolisms. Thesis Gros Morne National Park Newfoundland Memorial University of Newfoundland: Research Repository Gros Morne National Park ENVELOPE(-57.531,-57.531,49.613,49.613) |
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Memorial University of Newfoundland: Research Repository |
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ftmemorialuniv |
language |
English |
description |
This study addresses the origin of methane on Mars. A possible source of methane on Mars has been attributed to serpentinization. Active serpentinization is occurring in the subsurface at The Tablelands Ophiolite, in Gros Morne National Park, Newfoundland. Active serpentinization is evidenced by the highly reducing (Eh~ -700mV), ultra-basic (pH 10-12) groundwater springs containing dissolved methane and other lower molecular weight hydrocarbon gases, and the presence of travertine deposits. -- The source of methane in the springs as determined to be non-microbial and attributed to either thermogenic or possible abiogenic synthesis. Despite this finding, the ultra-basic springs are an extreme environment for an extant microbial community. Phospholipid fatty acid (PLFA) analysis determined an abundance of gram-negative bacteria as well as the presence algae and fungal biomarkers; and carbon isotopic analysis of PLFA suggests both heterotrophic and autotrophic metabolisms. |
format |
Thesis |
author |
Szponar, Natalie |
spellingShingle |
Szponar, Natalie Carbon cycling at a site of present day serpentinization: the tables, Gros Morne National Park |
author_facet |
Szponar, Natalie |
author_sort |
Szponar, Natalie |
title |
Carbon cycling at a site of present day serpentinization: the tables, Gros Morne National Park |
title_short |
Carbon cycling at a site of present day serpentinization: the tables, Gros Morne National Park |
title_full |
Carbon cycling at a site of present day serpentinization: the tables, Gros Morne National Park |
title_fullStr |
Carbon cycling at a site of present day serpentinization: the tables, Gros Morne National Park |
title_full_unstemmed |
Carbon cycling at a site of present day serpentinization: the tables, Gros Morne National Park |
title_sort |
carbon cycling at a site of present day serpentinization: the tables, gros morne national park |
publisher |
Memorial University of Newfoundland |
publishDate |
2012 |
url |
https://research.library.mun.ca/11504/ https://research.library.mun.ca/11504/1/Szponar_Natalie.pdf |
long_lat |
ENVELOPE(-57.531,-57.531,49.613,49.613) |
geographic |
Gros Morne National Park |
geographic_facet |
Gros Morne National Park |
genre |
Gros Morne National Park Newfoundland |
genre_facet |
Gros Morne National Park Newfoundland |
op_relation |
https://research.library.mun.ca/11504/1/Szponar_Natalie.pdf Szponar, Natalie <https://research.library.mun.ca/view/creator_az/Szponar=3ANatalie=3A=3A.html> (2012) Carbon cycling at a site of present day serpentinization: the tables, Gros Morne National Park. Masters thesis, Memorial University of Newfoundland. |
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1778526275726475264 |