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.identifier.uri |
http://hdl.handle.net/1794/13418 |
|
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.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.name |
M.S. |
en_US |
thesis.degree.level |
masters |
en_US |
thesis.degree.discipline |
Department of Geological Sciences |
en_US |
thesis.degree.grantor |
University of Oregon |
en_US |