Record of Late Pleistocene Ice Rafted Debris at IODP Site 1308 in the Central North Atlantic
Ice rafted debris (IRD) consists of rock grains of terrestrial origin that were transported by glacial icebergs. These grains may provide clues to past climate, ocean currents and other geologic conditions. Samples from the North Atlantic Integrated Ocean Drilling Program (IOPD) Site 1308 have been...
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ftohiostateu:oai:kb.osu.edu:1811/68921 2023-05-15T16:03:50+02:00 Record of Late Pleistocene Ice Rafted Debris at IODP Site 1308 in the Central North Atlantic Bechtel, Katherine Krissek, Lawrence 2015-05 application/pdf http://hdl.handle.net/1811/68921 en_US eng The Ohio State University The Ohio State University. School of Earth Sciences Senior Theses; 2015 http://hdl.handle.net/1811/68921 Attribution 3.0 United States http://creativecommons.org/licenses/by/3.0/us/ CC-BY ice rafted debri site 1308 Late Pleistocene Ice Rafted Debris IODP Site 1308 Dr. Lawrence A. Krissek Krissek Thesis 2015 ftohiostateu 2020-08-22T19:21:05Z Ice rafted debris (IRD) consists of rock grains of terrestrial origin that were transported by glacial icebergs. These grains may provide clues to past climate, ocean currents and other geologic conditions. Samples from the North Atlantic Integrated Ocean Drilling Program (IOPD) Site 1308 have been examined to collect information on IRD abundances downcore. In this study a total of 39 samples have been inspected and range in age from 851.5 to 969.625 kya. These data were compared to known glacial stage data in order to see if the abundance of ice rafted debris corresponds to global climate state through time. The abundances of specific grain types were acquired through a census of 100 grains from each sample, which were taken at a spacing of10 to 30 cm in the core. The terrestrial grains showed fluctuations in abundances within the core. Terrestrial abundances increased near the boundaries of the glacial/interglacial stages for both the individual grain categories and the terrestrial group as a whole. Some IRD grain types are site-specific, allowing the determination of iceberg provenance. The grains were found to originate from Canada, Iceland/central East Greenland, and southern Greenland. Integrated Ocean Drilling Program No embargo Thesis East Greenland Greenland Iceland North Atlantic Ohio State University (OSU): Knowledge Bank Canada Greenland Kya ENVELOPE(8.308,8.308,63.772,63.772) |
institution |
Open Polar |
collection |
Ohio State University (OSU): Knowledge Bank |
op_collection_id |
ftohiostateu |
language |
English |
topic |
ice rafted debri site 1308 Late Pleistocene Ice Rafted Debris IODP Site 1308 Dr. Lawrence A. Krissek Krissek |
spellingShingle |
ice rafted debri site 1308 Late Pleistocene Ice Rafted Debris IODP Site 1308 Dr. Lawrence A. Krissek Krissek Bechtel, Katherine Record of Late Pleistocene Ice Rafted Debris at IODP Site 1308 in the Central North Atlantic |
topic_facet |
ice rafted debri site 1308 Late Pleistocene Ice Rafted Debris IODP Site 1308 Dr. Lawrence A. Krissek Krissek |
description |
Ice rafted debris (IRD) consists of rock grains of terrestrial origin that were transported by glacial icebergs. These grains may provide clues to past climate, ocean currents and other geologic conditions. Samples from the North Atlantic Integrated Ocean Drilling Program (IOPD) Site 1308 have been examined to collect information on IRD abundances downcore. In this study a total of 39 samples have been inspected and range in age from 851.5 to 969.625 kya. These data were compared to known glacial stage data in order to see if the abundance of ice rafted debris corresponds to global climate state through time. The abundances of specific grain types were acquired through a census of 100 grains from each sample, which were taken at a spacing of10 to 30 cm in the core. The terrestrial grains showed fluctuations in abundances within the core. Terrestrial abundances increased near the boundaries of the glacial/interglacial stages for both the individual grain categories and the terrestrial group as a whole. Some IRD grain types are site-specific, allowing the determination of iceberg provenance. The grains were found to originate from Canada, Iceland/central East Greenland, and southern Greenland. Integrated Ocean Drilling Program No embargo |
author2 |
Krissek, Lawrence |
format |
Thesis |
author |
Bechtel, Katherine |
author_facet |
Bechtel, Katherine |
author_sort |
Bechtel, Katherine |
title |
Record of Late Pleistocene Ice Rafted Debris at IODP Site 1308 in the Central North Atlantic |
title_short |
Record of Late Pleistocene Ice Rafted Debris at IODP Site 1308 in the Central North Atlantic |
title_full |
Record of Late Pleistocene Ice Rafted Debris at IODP Site 1308 in the Central North Atlantic |
title_fullStr |
Record of Late Pleistocene Ice Rafted Debris at IODP Site 1308 in the Central North Atlantic |
title_full_unstemmed |
Record of Late Pleistocene Ice Rafted Debris at IODP Site 1308 in the Central North Atlantic |
title_sort |
record of late pleistocene ice rafted debris at iodp site 1308 in the central north atlantic |
publisher |
The Ohio State University |
publishDate |
2015 |
url |
http://hdl.handle.net/1811/68921 |
long_lat |
ENVELOPE(8.308,8.308,63.772,63.772) |
geographic |
Canada Greenland Kya |
geographic_facet |
Canada Greenland Kya |
genre |
East Greenland Greenland Iceland North Atlantic |
genre_facet |
East Greenland Greenland Iceland North Atlantic |
op_relation |
The Ohio State University. School of Earth Sciences Senior Theses; 2015 http://hdl.handle.net/1811/68921 |
op_rights |
Attribution 3.0 United States http://creativecommons.org/licenses/by/3.0/us/ |
op_rightsnorm |
CC-BY |
_version_ |
1766399516683010048 |