Paleoenvironment and Paleoclimate of Coastal East Antarctica During the Middle Miocene : Particle Size Results of the ANDRILL Southern McMurdo Sound Project
The ANDRILL Southern McMurdo Sound (SMS) Project was carried out in December of 2007 by an international interdisciplinary team. The AND-2A core recovered the most complete Neogene stratigraphic record from Antarctica, spanning the past 20.2 million years. Analyzing particle size distributions of sa...
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ftmontclairstuni:oai:digitalcommons.montclair.edu:etd-2153 2023-07-23T04:14:38+02:00 Paleoenvironment and Paleoclimate of Coastal East Antarctica During the Middle Miocene : Particle Size Results of the ANDRILL Southern McMurdo Sound Project Falk, Candice Joy 2009-05-01T07:00:00Z application/pdf https://digitalcommons.montclair.edu/etd/1151 https://digitalcommons.montclair.edu/context/etd/article/2153/viewcontent/Falk_Thesis_2009_Redacted.pdf unknown Montclair State University Digital Commons https://digitalcommons.montclair.edu/etd/1151 https://digitalcommons.montclair.edu/context/etd/article/2153/viewcontent/Falk_Thesis_2009_Redacted.pdf Theses, Dissertations and Culminating Projects Earth Sciences Environmental Sciences text 2009 ftmontclairstuni 2023-07-03T21:57:10Z The ANDRILL Southern McMurdo Sound (SMS) Project was carried out in December of 2007 by an international interdisciplinary team. The AND-2A core recovered the most complete Neogene stratigraphic record from Antarctica, spanning the past 20.2 million years. Analyzing particle size distributions of samples throughout the core can determine environmental conditions of the past, such as the advance or retreat of glaciers and the rise and fall of sea level. Over 300 samples were taken at approximately 3 m intervals from the 1138.54 m AND-2A core. Samples were processed and analyzed using a Malvern Instruments Mastersizer 2000, laser diffractometer which has the capability to measure sediments from 0.2 pm to 2000 pm. Statistical measures, such as the mean particle size, volume percent grain size, and distribution are analyzed to characterize the lithology, depositional environment and paleoclimate. The volume sand percent and sorting indicated a warming period during 15.6-15.7 Ma known as the middle Miocene climatic optimum (MCO) when ice-distal conditions existed, and a cooling period during 14.2-13.8 Ma known as the middle Miocene climatic transition (MMCT) that was ice-proximal. The MMCT is believed to have started the icehouse conditions in Antarctica that have existed for the past 14 million years. The changes in the particle size distribution give a better understanding of the hydrological processes and climate changes in Antarctica through the Neogene which will help predict future global environmental changes. Text Antarc* Antarctica East Antarctica McMurdo Sound Montclair State University Digital Commons East Antarctica McMurdo Sound |
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Montclair State University Digital Commons |
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Earth Sciences Environmental Sciences |
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Earth Sciences Environmental Sciences Falk, Candice Joy Paleoenvironment and Paleoclimate of Coastal East Antarctica During the Middle Miocene : Particle Size Results of the ANDRILL Southern McMurdo Sound Project |
topic_facet |
Earth Sciences Environmental Sciences |
description |
The ANDRILL Southern McMurdo Sound (SMS) Project was carried out in December of 2007 by an international interdisciplinary team. The AND-2A core recovered the most complete Neogene stratigraphic record from Antarctica, spanning the past 20.2 million years. Analyzing particle size distributions of samples throughout the core can determine environmental conditions of the past, such as the advance or retreat of glaciers and the rise and fall of sea level. Over 300 samples were taken at approximately 3 m intervals from the 1138.54 m AND-2A core. Samples were processed and analyzed using a Malvern Instruments Mastersizer 2000, laser diffractometer which has the capability to measure sediments from 0.2 pm to 2000 pm. Statistical measures, such as the mean particle size, volume percent grain size, and distribution are analyzed to characterize the lithology, depositional environment and paleoclimate. The volume sand percent and sorting indicated a warming period during 15.6-15.7 Ma known as the middle Miocene climatic optimum (MCO) when ice-distal conditions existed, and a cooling period during 14.2-13.8 Ma known as the middle Miocene climatic transition (MMCT) that was ice-proximal. The MMCT is believed to have started the icehouse conditions in Antarctica that have existed for the past 14 million years. The changes in the particle size distribution give a better understanding of the hydrological processes and climate changes in Antarctica through the Neogene which will help predict future global environmental changes. |
format |
Text |
author |
Falk, Candice Joy |
author_facet |
Falk, Candice Joy |
author_sort |
Falk, Candice Joy |
title |
Paleoenvironment and Paleoclimate of Coastal East Antarctica During the Middle Miocene : Particle Size Results of the ANDRILL Southern McMurdo Sound Project |
title_short |
Paleoenvironment and Paleoclimate of Coastal East Antarctica During the Middle Miocene : Particle Size Results of the ANDRILL Southern McMurdo Sound Project |
title_full |
Paleoenvironment and Paleoclimate of Coastal East Antarctica During the Middle Miocene : Particle Size Results of the ANDRILL Southern McMurdo Sound Project |
title_fullStr |
Paleoenvironment and Paleoclimate of Coastal East Antarctica During the Middle Miocene : Particle Size Results of the ANDRILL Southern McMurdo Sound Project |
title_full_unstemmed |
Paleoenvironment and Paleoclimate of Coastal East Antarctica During the Middle Miocene : Particle Size Results of the ANDRILL Southern McMurdo Sound Project |
title_sort |
paleoenvironment and paleoclimate of coastal east antarctica during the middle miocene : particle size results of the andrill southern mcmurdo sound project |
publisher |
Montclair State University Digital Commons |
publishDate |
2009 |
url |
https://digitalcommons.montclair.edu/etd/1151 https://digitalcommons.montclair.edu/context/etd/article/2153/viewcontent/Falk_Thesis_2009_Redacted.pdf |
geographic |
East Antarctica McMurdo Sound |
geographic_facet |
East Antarctica McMurdo Sound |
genre |
Antarc* Antarctica East Antarctica McMurdo Sound |
genre_facet |
Antarc* Antarctica East Antarctica McMurdo Sound |
op_source |
Theses, Dissertations and Culminating Projects |
op_relation |
https://digitalcommons.montclair.edu/etd/1151 https://digitalcommons.montclair.edu/context/etd/article/2153/viewcontent/Falk_Thesis_2009_Redacted.pdf |
_version_ |
1772186207380307968 |