Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021GL094706 |
Seismic reflection and electrical resistivity imaging support pre-Quaternary glaciation in the Rocky Mountains (Unaweep Canyon, Colorado) | |
Anna Patterson; Michael Behm; Werner Chwatal; Adrian Flores-Orozco; Yichuan Wang; Gerilyn S. Soreghan | |
2021-09-17 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2021 |
英文摘要 | Unaweep Canyon (Uncompaghre 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 dataset is further complemented with a 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. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/338675 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Anna Patterson,Michael Behm,Werner Chwatal,et al. Seismic reflection and electrical resistivity imaging support pre-Quaternary glaciation in the Rocky Mountains (Unaweep Canyon, Colorado)[J]. Geophysical Research Letters,2021. |
APA | Anna Patterson,Michael Behm,Werner Chwatal,Adrian Flores-Orozco,Yichuan Wang,&Gerilyn S. Soreghan.(2021).Seismic reflection and electrical resistivity imaging support pre-Quaternary glaciation in the Rocky Mountains (Unaweep Canyon, Colorado).Geophysical Research Letters. |
MLA | Anna Patterson,et al."Seismic reflection and electrical resistivity imaging support pre-Quaternary glaciation in the Rocky Mountains (Unaweep Canyon, Colorado)".Geophysical Research Letters (2021). |
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