Seismic Reflection and Electrical Resistivity Imaging Support Pre-Quaternary Glaciation in the Rocky Mountains (Unaweep Canyon, Colorado)

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dc.contributor.authorPatterson, Anna
dc.contributor.authorBehm, Michael
dc.contributor.authorChwatal, Werner
dc.contributor.authorFlores-Orozco, Adrian
dc.contributor.authorWang, Yichuan
dc.contributor.authorSoreghan, Gerilyn S.
dc.date.accessioned2021-11-15T20:51:12Z
dc.date.available2021-11-15T20:51:12Z
dc.date.issued2021-09-25
dc.description.abstractUnaweep 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.en_US
dc.description.abstractAGU allows authors to deposit their journal articles if the version is the final published citable version of record, the AGU copyright statement is clearly visible on the posting, and the posting is made 6 months after official publication by the AGU.en_US
dc.description.peerreviewYesen_US
dc.description.sponsorshipAcquisition was partly funded through NSF-EAR- 1338331 and NSF- EAR- 1849623.en_US
dc.identifier.citationPatterson, A., Behm, M., Chwatal, W., Flores-Orozco, A., Wang, Y., & Soreghan, G. S. (2021). Seismic reflection and electrical resistivity imaging support pre-Quaternary glaciation in the Rocky Mountains (Unaweep Canyon, Colorado). Geophysical Research Letters, 48, e2021GL094706. https://doi. org/10.1029/2021GL094706en_US
dc.identifier.doi10.1029/2021GL094706en_US
dc.identifier.urihttps://hdl.handle.net/11244/331252
dc.languageen_USen_US
dc.subjectGlacial geologyen_US
dc.subjectElectric conductivityen_US
dc.subjectErosionen_US
dc.subjectSeismic wavesen_US
dc.subjectSeismologyen_US
dc.subjectTectonicsen_US
dc.subjectComplex evolutionsen_US
dc.subjectElectrical resistivity imagingen_US
dc.subjectFluvial erosionen_US
dc.subjectGlacial erosionen_US
dc.subjectHigh resolution seismicen_US
dc.subjectLarge-scalesen_US
dc.subjectLate Cenozoicen_US
dc.subjectPaleozoicen_US
dc.subjectRocky Mountainsen_US
dc.subjectSeismic reflectionsen_US
dc.titleSeismic Reflection and Electrical Resistivity Imaging Support Pre-Quaternary Glaciation in the Rocky Mountains (Unaweep Canyon, Colorado)en_US
dc.typeArticleen_US
ou.groupMewbourne College of Earth and Energy::School of Geosciencesen_US

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