Seismic Reflection and Electrical Resistivity Imaging Support Pre‐Quaternary Glaciation in the Rocky Mountains (Unaweep Canyon, Colorado)
Seismic Reflection and Electrical Resistivity Imaging Support Pre‐Quaternary Glaciation in the Rocky Mountains (Unaweep Canyon, Colorado)
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地震反射和电阻率成像支持落基山脉第四纪冰川作用之前(科罗拉多州乌纳威普峡谷)
DOI:
10.1029/2021gl094706
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发表时间:
2021
影响因子:
5.2
通讯作者:
Soreghan, Gerilyn S.
中科院分区:
文献类型:
--
作者:
Patterson, Anna;Behm, Michael;Chwatal, Werner;Flores‐Orozco, Adrian;Wang, Yichuan;Soreghan, Gerilyn S.
Unaweep Canyon (Uncompahgre Plateau, Colorado) represents an enigmatic landscape with a complex evolution. Interpretations for its origin have ranged from ancestral fluvial erosion in the late Cenozoic to glacial erosion in the Paleozoic, or some combination thereof, with significant implications for global climatic and large‐scale tectonic reconstructions. To address the conflicting interpretations, we acquired a high‐resolution seismic reflection profile to investigate the depth, structure, and sedimentary infill in the canyon. The data set is further complemented with an electrical resistivity survey. Integrated with other geophysical and geological data, the results show an overdeepened Precambrian basement with transverse U shape and support the hypothesis of a pre‐Quaternary glacial origin. Our data constitute the first detailed image of a buried pre‐Quaternary glacial valley in North America; if substantiated with core studies, these results have far‐reaching implications for our understanding of global ice houses as well as the tectonic conditions, enabling preservation of such systems.
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DOI:
--
发表时间:
2009
期刊:
The Journal of geology
影响因子:
--
作者:
W. C. Hood
通讯作者:
W. C. Hood
DOI:
--
发表时间:
2009
期刊:
The Journal of geology
影响因子:
--
作者:
G. Soreghan;D. Sweet;Kristen R. Marra;C. Eble;M. Soreghan;R. Elmore;Sara A. Kaplan;Michael D. Blum
通讯作者:
Michael D. Blum
影响因子:
0.3
作者:
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通讯作者:
A. Moscariello
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发表时间:
2012
期刊:
影响因子:
--
作者:
G. Soreghan;G. R. Keller;M. C. Gilbert;C. G. Chase;D. Sweet
通讯作者:
D. Sweet
DOI:
10.56577/ffc-32.137
发表时间:
1981
期刊:
Western Slope (Western Colorado)
影响因子:
--
作者:
F. Bache;J. Moreau;J. Rubino;C. Gorini;B. Van
通讯作者:
B. Van