Modern Foraminiferal Assemblages of the Denmark Strait
Foraminifera occupy a geological range from the early Cambrian to the present day. Their well preserved shells, high relative abundance, and short response time to changing environmental conditions make foraminifera ideal proxies for environmental change. Benthic foraminifera are a valuable but poor...
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ftcityunivny:oai:academicworks.cuny.edu:cc_etds_theses-1606 2023-05-15T14:59:22+02:00 Modern Foraminiferal Assemblages of the Denmark Strait Larocca, Laura 2016-01-01T08:00:00Z application/pdf https://academicworks.cuny.edu/cc_etds_theses/604 https://academicworks.cuny.edu/cgi/viewcontent.cgi?article=1606&context=cc_etds_theses English eng CUNY Academic Works https://academicworks.cuny.edu/cc_etds_theses/604 https://academicworks.cuny.edu/cgi/viewcontent.cgi?article=1606&context=cc_etds_theses Dissertations and Theses Denmark Strait Arctic Foraminifera Earth Sciences Geology thesis 2016 ftcityunivny 2021-04-10T18:50:34Z Foraminifera occupy a geological range from the early Cambrian to the present day. Their well preserved shells, high relative abundance, and short response time to changing environmental conditions make foraminifera ideal proxies for environmental change. Benthic foraminifera are a valuable but poorly understood paleobiological proxy for the reconstruction of environmental conditions on continental shelves occupied by arctic and subarctic waters. This study identifies, examines, and quantifies calcareous benthic foraminiferal faunas from a sediment core taken from the Denmark Strait. Our analysis of three-thousand individuals from ten discrete samples aim to provide a better understanding of the modern patterns of foraminiferal distribution in the Denmark Strait, an important area in regulating climate. We find that the variability in foraminiferal taxa reflect changes in the environment, specifically current velocity, over the past (approximately) 600 years. The dominant genera, Cibicides, Elphidium, and Buccella, in the studied core have shown significant variability in abundance through time. The variability in these genera support a change from a warmer climate with stronger current velocities and meltwater influx (likely the Medieval Warm Period) to a cooler climate, with slower current velocities and less meltwater influx (most likely the Little Ice age), and finally a shift to our present day environment in which the climate in the region is warming due to anthropogenic impacts. Although more work needs to be done, it is clear that benthic foraminifera in the region respond to changing climate conditions and are valuable proxies for environmental change. Thesis Arctic Denmark Strait Foraminifera* Subarctic City University of New York: CUNY Academic Works Arctic |
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Open Polar |
collection |
City University of New York: CUNY Academic Works |
op_collection_id |
ftcityunivny |
language |
English |
topic |
Denmark Strait Arctic Foraminifera Earth Sciences Geology |
spellingShingle |
Denmark Strait Arctic Foraminifera Earth Sciences Geology Larocca, Laura Modern Foraminiferal Assemblages of the Denmark Strait |
topic_facet |
Denmark Strait Arctic Foraminifera Earth Sciences Geology |
description |
Foraminifera occupy a geological range from the early Cambrian to the present day. Their well preserved shells, high relative abundance, and short response time to changing environmental conditions make foraminifera ideal proxies for environmental change. Benthic foraminifera are a valuable but poorly understood paleobiological proxy for the reconstruction of environmental conditions on continental shelves occupied by arctic and subarctic waters. This study identifies, examines, and quantifies calcareous benthic foraminiferal faunas from a sediment core taken from the Denmark Strait. Our analysis of three-thousand individuals from ten discrete samples aim to provide a better understanding of the modern patterns of foraminiferal distribution in the Denmark Strait, an important area in regulating climate. We find that the variability in foraminiferal taxa reflect changes in the environment, specifically current velocity, over the past (approximately) 600 years. The dominant genera, Cibicides, Elphidium, and Buccella, in the studied core have shown significant variability in abundance through time. The variability in these genera support a change from a warmer climate with stronger current velocities and meltwater influx (likely the Medieval Warm Period) to a cooler climate, with slower current velocities and less meltwater influx (most likely the Little Ice age), and finally a shift to our present day environment in which the climate in the region is warming due to anthropogenic impacts. Although more work needs to be done, it is clear that benthic foraminifera in the region respond to changing climate conditions and are valuable proxies for environmental change. |
format |
Thesis |
author |
Larocca, Laura |
author_facet |
Larocca, Laura |
author_sort |
Larocca, Laura |
title |
Modern Foraminiferal Assemblages of the Denmark Strait |
title_short |
Modern Foraminiferal Assemblages of the Denmark Strait |
title_full |
Modern Foraminiferal Assemblages of the Denmark Strait |
title_fullStr |
Modern Foraminiferal Assemblages of the Denmark Strait |
title_full_unstemmed |
Modern Foraminiferal Assemblages of the Denmark Strait |
title_sort |
modern foraminiferal assemblages of the denmark strait |
publisher |
CUNY Academic Works |
publishDate |
2016 |
url |
https://academicworks.cuny.edu/cc_etds_theses/604 https://academicworks.cuny.edu/cgi/viewcontent.cgi?article=1606&context=cc_etds_theses |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Denmark Strait Foraminifera* Subarctic |
genre_facet |
Arctic Denmark Strait Foraminifera* Subarctic |
op_source |
Dissertations and Theses |
op_relation |
https://academicworks.cuny.edu/cc_etds_theses/604 https://academicworks.cuny.edu/cgi/viewcontent.cgi?article=1606&context=cc_etds_theses |
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