Stratigraphy of the Colorado Creek Mammoth Locality, Alaska
Abstract The Colorado Creek mammoth locality in west-central Alaska contains the remains of two mammoths that were scavenged by carnivores. Sedimentologic interpretations of the reworked eolian deposits surrounding the bones, supplemented by 10 radiocarbon dates, indicate that the lower and upper ma...
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Language: | English |
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Cambridge University Press (CUP)
1992
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crcambridgeupr:10.1016/0033-5894(92)90083-u 2024-06-09T07:49:00+00:00 Stratigraphy of the Colorado Creek Mammoth Locality, Alaska Thorson, Robert M. Guthrie, R. Dale 1992 http://dx.doi.org/10.1016/0033-5894(92)90083-u http://api.elsevier.com/content/article/PII:003358949290083U?httpAccept=text/xml http://api.elsevier.com/content/article/PII:003358949290083U?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400023681 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Quaternary Research volume 37, issue 2, page 214-228 ISSN 0033-5894 1096-0287 journal-article 1992 crcambridgeupr https://doi.org/10.1016/0033-5894(92)90083-u 2024-05-15T13:06:39Z Abstract The Colorado Creek mammoth locality in west-central Alaska contains the remains of two mammoths that were scavenged by carnivores. Sedimentologic interpretations of the reworked eolian deposits surrounding the bones, supplemented by 10 radiocarbon dates, indicate that the lower and upper mammoths died and were buried within separate, but superimposed, thaw gullies about 23,000 and 16,000 yr ago, respectively. From our results, we propose a polycyclic taphonomic model for thaw gullies governed largely by slope aspect, rather than regional climate, and in which mixing between faunal horizons is more likely than not. Variations in the rate of silt influx and the position of the permafrost table provide a paleoclimatic proxy record that can be correlated to other records in eastern Beringia. Article in Journal/Newspaper permafrost Alaska Beringia Cambridge University Press Colorado Creek ENVELOPE(-138.850,-138.850,62.522,62.522) Quaternary Research 37 2 214 228 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
description |
Abstract The Colorado Creek mammoth locality in west-central Alaska contains the remains of two mammoths that were scavenged by carnivores. Sedimentologic interpretations of the reworked eolian deposits surrounding the bones, supplemented by 10 radiocarbon dates, indicate that the lower and upper mammoths died and were buried within separate, but superimposed, thaw gullies about 23,000 and 16,000 yr ago, respectively. From our results, we propose a polycyclic taphonomic model for thaw gullies governed largely by slope aspect, rather than regional climate, and in which mixing between faunal horizons is more likely than not. Variations in the rate of silt influx and the position of the permafrost table provide a paleoclimatic proxy record that can be correlated to other records in eastern Beringia. |
format |
Article in Journal/Newspaper |
author |
Thorson, Robert M. Guthrie, R. Dale |
spellingShingle |
Thorson, Robert M. Guthrie, R. Dale Stratigraphy of the Colorado Creek Mammoth Locality, Alaska |
author_facet |
Thorson, Robert M. Guthrie, R. Dale |
author_sort |
Thorson, Robert M. |
title |
Stratigraphy of the Colorado Creek Mammoth Locality, Alaska |
title_short |
Stratigraphy of the Colorado Creek Mammoth Locality, Alaska |
title_full |
Stratigraphy of the Colorado Creek Mammoth Locality, Alaska |
title_fullStr |
Stratigraphy of the Colorado Creek Mammoth Locality, Alaska |
title_full_unstemmed |
Stratigraphy of the Colorado Creek Mammoth Locality, Alaska |
title_sort |
stratigraphy of the colorado creek mammoth locality, alaska |
publisher |
Cambridge University Press (CUP) |
publishDate |
1992 |
url |
http://dx.doi.org/10.1016/0033-5894(92)90083-u http://api.elsevier.com/content/article/PII:003358949290083U?httpAccept=text/xml http://api.elsevier.com/content/article/PII:003358949290083U?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400023681 |
long_lat |
ENVELOPE(-138.850,-138.850,62.522,62.522) |
geographic |
Colorado Creek |
geographic_facet |
Colorado Creek |
genre |
permafrost Alaska Beringia |
genre_facet |
permafrost Alaska Beringia |
op_source |
Quaternary Research volume 37, issue 2, page 214-228 ISSN 0033-5894 1096-0287 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1016/0033-5894(92)90083-u |
container_title |
Quaternary Research |
container_volume |
37 |
container_issue |
2 |
container_start_page |
214 |
op_container_end_page |
228 |
_version_ |
1801381043940360192 |