Characterization of Sediment and Sedimentary Processes by Thermoluminescence Level in the Fjord and Shelf Environment of Western Spitsbergen, Svalbard
This study explored the relationship between high Arctic depositional environments and the natural thermoluminescence (TL) signal of sediments. The energy and duration of light exposure during deposition controls the TL level of silicate mineral grains in the sediment. The results indicate that the...
Main Author: | |
---|---|
Other Authors: | |
Format: | Text |
Language: | English |
Published: |
1988
|
Subjects: | |
Online Access: | http://www.dtic.mil/docs/citations/ADA202466 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA202466 |
id |
ftdtic:ADA202466 |
---|---|
record_format |
openpolar |
spelling |
ftdtic:ADA202466 2023-05-15T14:54:41+02:00 Characterization of Sediment and Sedimentary Processes by Thermoluminescence Level in the Fjord and Shelf Environment of Western Spitsbergen, Svalbard Forman, Steven L. COLORADO UNIV AT BOULDER INST OF ARCTIC AND ALPINE RESEARCH 1988-11-15 text/html http://www.dtic.mil/docs/citations/ADA202466 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA202466 en eng http://www.dtic.mil/docs/citations/ADA202466 Approved for public release; distribution is unlimited. DTIC AND NTIS Physical and Dynamic Oceanography Snow Ice and Permafrost Optics *THERMOLUMINESCENCE *GLACIAL DEPOSITS *SEDIMENTATION EXPOSURE(GENERAL) LIGHT RATES DEPTH DEPOSITION SHALLOW WATER SIGNALS RANGE(DISTANCE) HIGH LATITUDES SEA WATER OCEAN ENVIRONMENTS SEDIMENTS SILICATES OCEAN BOTTOM GLACIERS MUD LAND ICE FJORDS GRANULES ARCTIC OCEAN ISLANDS TIME DEPENDENCE COASTAL REGIONS CONTROL SOURCES GLACIAL TILLS ICE SHELVES SVALBARD Text 1988 ftdtic 2016-02-23T07:49:15Z This study explored the relationship between high Arctic depositional environments and the natural thermoluminescence (TL) signal of sediments. The energy and duration of light exposure during deposition controls the TL level of silicate mineral grains in the sediment. The results indicate that the TL signal of sediments is proportional to the distance from glacier sediment source and water depth in the littoral/sublittoral zone. The highest TL levels are from tills or ice-shelf sediments, which receive little or no light exposure with deposition. Intermediate TL levels are associated with ice-proximal environments; lower and consistent TL levels are recorded for glacial-marine muds collected from fiord and shelf areas. The TL of sediments decreases away from the glacier sediment source because of longer light exposure with slower rates of deposition. The lowest TL levels are for littoral and sublittoral sediments which receive extended light exposure with shoaling. The relative TL signal of sediments is a new tool for deciphering the source of sediment, particulary in environments proximal to a glacier terminus and in shallow water, less than 15 m deep. Keywords: Glacial and marine sediments; Arctic Ocean islands; Glacial deposits. Text Arctic Arctic Ocean glacier Ice Ice Shelf Ice Shelves permafrost Svalbard Spitsbergen Defense Technical Information Center: DTIC Technical Reports database Arctic Arctic Ocean Svalbard |
institution |
Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Physical and Dynamic Oceanography Snow Ice and Permafrost Optics *THERMOLUMINESCENCE *GLACIAL DEPOSITS *SEDIMENTATION EXPOSURE(GENERAL) LIGHT RATES DEPTH DEPOSITION SHALLOW WATER SIGNALS RANGE(DISTANCE) HIGH LATITUDES SEA WATER OCEAN ENVIRONMENTS SEDIMENTS SILICATES OCEAN BOTTOM GLACIERS MUD LAND ICE FJORDS GRANULES ARCTIC OCEAN ISLANDS TIME DEPENDENCE COASTAL REGIONS CONTROL SOURCES GLACIAL TILLS ICE SHELVES SVALBARD |
spellingShingle |
Physical and Dynamic Oceanography Snow Ice and Permafrost Optics *THERMOLUMINESCENCE *GLACIAL DEPOSITS *SEDIMENTATION EXPOSURE(GENERAL) LIGHT RATES DEPTH DEPOSITION SHALLOW WATER SIGNALS RANGE(DISTANCE) HIGH LATITUDES SEA WATER OCEAN ENVIRONMENTS SEDIMENTS SILICATES OCEAN BOTTOM GLACIERS MUD LAND ICE FJORDS GRANULES ARCTIC OCEAN ISLANDS TIME DEPENDENCE COASTAL REGIONS CONTROL SOURCES GLACIAL TILLS ICE SHELVES SVALBARD Forman, Steven L. Characterization of Sediment and Sedimentary Processes by Thermoluminescence Level in the Fjord and Shelf Environment of Western Spitsbergen, Svalbard |
topic_facet |
Physical and Dynamic Oceanography Snow Ice and Permafrost Optics *THERMOLUMINESCENCE *GLACIAL DEPOSITS *SEDIMENTATION EXPOSURE(GENERAL) LIGHT RATES DEPTH DEPOSITION SHALLOW WATER SIGNALS RANGE(DISTANCE) HIGH LATITUDES SEA WATER OCEAN ENVIRONMENTS SEDIMENTS SILICATES OCEAN BOTTOM GLACIERS MUD LAND ICE FJORDS GRANULES ARCTIC OCEAN ISLANDS TIME DEPENDENCE COASTAL REGIONS CONTROL SOURCES GLACIAL TILLS ICE SHELVES SVALBARD |
description |
This study explored the relationship between high Arctic depositional environments and the natural thermoluminescence (TL) signal of sediments. The energy and duration of light exposure during deposition controls the TL level of silicate mineral grains in the sediment. The results indicate that the TL signal of sediments is proportional to the distance from glacier sediment source and water depth in the littoral/sublittoral zone. The highest TL levels are from tills or ice-shelf sediments, which receive little or no light exposure with deposition. Intermediate TL levels are associated with ice-proximal environments; lower and consistent TL levels are recorded for glacial-marine muds collected from fiord and shelf areas. The TL of sediments decreases away from the glacier sediment source because of longer light exposure with slower rates of deposition. The lowest TL levels are for littoral and sublittoral sediments which receive extended light exposure with shoaling. The relative TL signal of sediments is a new tool for deciphering the source of sediment, particulary in environments proximal to a glacier terminus and in shallow water, less than 15 m deep. Keywords: Glacial and marine sediments; Arctic Ocean islands; Glacial deposits. |
author2 |
COLORADO UNIV AT BOULDER INST OF ARCTIC AND ALPINE RESEARCH |
format |
Text |
author |
Forman, Steven L. |
author_facet |
Forman, Steven L. |
author_sort |
Forman, Steven L. |
title |
Characterization of Sediment and Sedimentary Processes by Thermoluminescence Level in the Fjord and Shelf Environment of Western Spitsbergen, Svalbard |
title_short |
Characterization of Sediment and Sedimentary Processes by Thermoluminescence Level in the Fjord and Shelf Environment of Western Spitsbergen, Svalbard |
title_full |
Characterization of Sediment and Sedimentary Processes by Thermoluminescence Level in the Fjord and Shelf Environment of Western Spitsbergen, Svalbard |
title_fullStr |
Characterization of Sediment and Sedimentary Processes by Thermoluminescence Level in the Fjord and Shelf Environment of Western Spitsbergen, Svalbard |
title_full_unstemmed |
Characterization of Sediment and Sedimentary Processes by Thermoluminescence Level in the Fjord and Shelf Environment of Western Spitsbergen, Svalbard |
title_sort |
characterization of sediment and sedimentary processes by thermoluminescence level in the fjord and shelf environment of western spitsbergen, svalbard |
publishDate |
1988 |
url |
http://www.dtic.mil/docs/citations/ADA202466 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA202466 |
geographic |
Arctic Arctic Ocean Svalbard |
geographic_facet |
Arctic Arctic Ocean Svalbard |
genre |
Arctic Arctic Ocean glacier Ice Ice Shelf Ice Shelves permafrost Svalbard Spitsbergen |
genre_facet |
Arctic Arctic Ocean glacier Ice Ice Shelf Ice Shelves permafrost Svalbard Spitsbergen |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADA202466 |
op_rights |
Approved for public release; distribution is unlimited. |
_version_ |
1766326444399525888 |