Structural Evolution of the Virgin Spring Phase of the Amargosa Chaos, Death Valley, California, USA
| dc.contributor.advisor | Miller, Marli | en_US |
| dc.contributor.author | Castonguay, Samuel | en_US |
| dc.date.accessioned | 2013-10-10T23:18:57Z | |
| dc.date.available | 2013-10-10T23:18:57Z | |
| dc.date.issued | 2013-10-10 | |
| dc.description.abstract | The Amargosa Chaos and Fault of Death Valley are complex features that play important roles in various tectonic models. Some recent models claim the fault is a regional detachment accommodating 80 km of NW-directed transport that produced the Chaos in its hangingwall. I offer an alternative interpretation: the chaos is a product of multiphase deformation that likely spanned the late Mesozoic and Cenozoic. The Amargosa Fault represents just one of six deformation events. The accompanying map (supplemental file) shows the cross-cutting relationships among fault populations: (D1) 25% north-northwest directed shortening across an imbricate thrust and tight fold system; (D2) E-SE extension on five normal faults; (D3) extension-related folding, which folded the D2 faults; (D4) normal-oblique slip on the Amargosa Fault; (D5) E-W extension on domino faults; (D6) extension on the Black Mountains Frontal Fault. The D2 faults, not the Amargosa, created the enigmatic attenuation observed in the Chaos. | en_US |
| dc.identifier.uri | https://hdl.handle.net/1794/13418 | |
| dc.language.iso | en_US | en_US |
| dc.publisher | University of Oregon | en_US |
| dc.rights | All Rights Reserved. | en_US |
| dc.subject | Amargosa Chaos | en_US |
| dc.subject | Death Valley | en_US |
| dc.subject | Structural Geology | en_US |
| dc.title | Structural Evolution of the Virgin Spring Phase of the Amargosa Chaos, Death Valley, California, USA | en_US |
| dc.type | Electronic Thesis or Dissertation | en_US |
| thesis.degree.discipline | Department of Geological Sciences | en_US |
| thesis.degree.grantor | University of Oregon | en_US |
| thesis.degree.level | masters | en_US |
| thesis.degree.name | M.S. | en_US |