Smear Slide Analysis to Assess Variability of 210-PB Dates in Sediment Cores from Offshore Thwaites Glacier, Antarctica
Thwaites Glacier is the widest glacier on Earth with evidence of a rapid negative change to the ice mass. Using sediment cores collected from sea floor highs and troughs adjacent to the glacier to investigate the sediment under a microscope could help to complete the picture on why Thwaites is melti...
Main Author: | |
---|---|
Other Authors: | |
Format: | Still Image |
Language: | English |
Published: |
2022
|
Subjects: | |
Online Access: | https://hdl.handle.net/10657/11706 |
id |
ftunivhouston:oai:uh-ir.tdl.org:10657/11706 |
---|---|
record_format |
openpolar |
spelling |
ftunivhouston:oai:uh-ir.tdl.org:10657/11706 2023-07-30T03:56:29+02:00 Smear Slide Analysis to Assess Variability of 210-PB Dates in Sediment Cores from Offshore Thwaites Glacier, Antarctica Hambrick, Mary Catherine Wellner, Julia 2022-04-14 application/pdf https://hdl.handle.net/10657/11706 en_US eng Summer Undergraduate Research Fellowship https://hdl.handle.net/10657/11706 The author of this work is the copyright owner. UH Libraries and the Texas Digital Library have their permission to store and provide access to this work. Further transmission, reproduction, or presentation of this work is prohibited except with permission of the author(s). Poster 2022 ftunivhouston 2023-07-15T22:07:55Z Thwaites Glacier is the widest glacier on Earth with evidence of a rapid negative change to the ice mass. Using sediment cores collected from sea floor highs and troughs adjacent to the glacier to investigate the sediment under a microscope could help to complete the picture on why Thwaites is melting or why it was melting in years past. The technique employed was a point counting method using smear slides. The results for the two cores were similar, though the core from the seafloor high (JGC17) has a segment with a greater discharge of quartz in the record. The core from the trough, KC08, appears to contain evidence of Paleogene coccolithophores which are important dating technique specimens. Instead of having to rely on only 210Pb dating methods which can be unreliable depending upon the core, finding the presence of biogenic material in the record can be helpful for dating. Earth and Atmospheric Sciences, Department of Honors College Still Image Antarc* Antarctica Thwaites Glacier University of Houston Institutional Repository (UHIR) Thwaites Glacier ENVELOPE(-106.750,-106.750,-75.500,-75.500) |
institution |
Open Polar |
collection |
University of Houston Institutional Repository (UHIR) |
op_collection_id |
ftunivhouston |
language |
English |
description |
Thwaites Glacier is the widest glacier on Earth with evidence of a rapid negative change to the ice mass. Using sediment cores collected from sea floor highs and troughs adjacent to the glacier to investigate the sediment under a microscope could help to complete the picture on why Thwaites is melting or why it was melting in years past. The technique employed was a point counting method using smear slides. The results for the two cores were similar, though the core from the seafloor high (JGC17) has a segment with a greater discharge of quartz in the record. The core from the trough, KC08, appears to contain evidence of Paleogene coccolithophores which are important dating technique specimens. Instead of having to rely on only 210Pb dating methods which can be unreliable depending upon the core, finding the presence of biogenic material in the record can be helpful for dating. Earth and Atmospheric Sciences, Department of Honors College |
author2 |
Wellner, Julia |
format |
Still Image |
author |
Hambrick, Mary Catherine |
spellingShingle |
Hambrick, Mary Catherine Smear Slide Analysis to Assess Variability of 210-PB Dates in Sediment Cores from Offshore Thwaites Glacier, Antarctica |
author_facet |
Hambrick, Mary Catherine |
author_sort |
Hambrick, Mary Catherine |
title |
Smear Slide Analysis to Assess Variability of 210-PB Dates in Sediment Cores from Offshore Thwaites Glacier, Antarctica |
title_short |
Smear Slide Analysis to Assess Variability of 210-PB Dates in Sediment Cores from Offshore Thwaites Glacier, Antarctica |
title_full |
Smear Slide Analysis to Assess Variability of 210-PB Dates in Sediment Cores from Offshore Thwaites Glacier, Antarctica |
title_fullStr |
Smear Slide Analysis to Assess Variability of 210-PB Dates in Sediment Cores from Offshore Thwaites Glacier, Antarctica |
title_full_unstemmed |
Smear Slide Analysis to Assess Variability of 210-PB Dates in Sediment Cores from Offshore Thwaites Glacier, Antarctica |
title_sort |
smear slide analysis to assess variability of 210-pb dates in sediment cores from offshore thwaites glacier, antarctica |
publishDate |
2022 |
url |
https://hdl.handle.net/10657/11706 |
long_lat |
ENVELOPE(-106.750,-106.750,-75.500,-75.500) |
geographic |
Thwaites Glacier |
geographic_facet |
Thwaites Glacier |
genre |
Antarc* Antarctica Thwaites Glacier |
genre_facet |
Antarc* Antarctica Thwaites Glacier |
op_relation |
Summer Undergraduate Research Fellowship https://hdl.handle.net/10657/11706 |
op_rights |
The author of this work is the copyright owner. UH Libraries and the Texas Digital Library have their permission to store and provide access to this work. Further transmission, reproduction, or presentation of this work is prohibited except with permission of the author(s). |
_version_ |
1772813409804353536 |