Geologic map of the Cerro Gordo Peak 7.5' Quadrangle, Inyo County, California

Stone, Paul; Dunne, George C.; Conrad, James E.; Swanson, Brian J.; Stevens, Calvin H.; Valin, Zenon C.

doi:10.3133/sim2851

Cited by 12 publications

(8 citation statements)

References 28 publications

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“…The sands are characterized by very low feldspar content, suggesting that their composition has in part been inherited from preweathered and transported sediments. Stone et al (2004) report detrital quartz sandstone units in both the above formations, which may explain a source for the quartz in the Keeler Fan wash sediments that ranges from 35 to 41%. Other possible sources of quartz include the highly weathered Miocene Fanglomerate of Slate Canyon situated along the range front and from Jurassic felsite intrusions present throughout mountain block.…”

Section: Sand Sourcesmentioning

confidence: 94%

Owens Lake dune fields: Composition, sources of sand, and transport pathways

Lancaster

Baker

Bacon

et al. 2015

CATENA

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Section: Sand Sourcesmentioning

confidence: 94%

Owens Lake dune fields: Composition, sources of sand, and transport pathways

Lancaster

Baker

Bacon

et al. 2015

CATENA

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“…Zircon from the Pat Keyes pluton yielded a Pb‐ α age of 210 ± 20 Ma [ Ross , 1965], whereas a whole rock, biotite, and muscovite Rb/Sr isochron yielded an age of 183 Ma [ Dunne , 1971]. In the southwestern Inyo Mountains, Paleozoic and Mesozoic metasedimentary rocks were complexly folded and faulted during the Permian, Jurassic, and Cretaceous [e.g., Stone et al , 2004; Dunne and Walker , 2004].…”

Section: Geologic Settingmentioning

confidence: 99%

Exhumation of the Inyo Mountains, California: Implications for the timing of extension along the western boundary of the Basin and Range Province and distribution of dextral fault slip rates across the eastern California shear zone

et al. 2009

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New geologic mapping, tectonic geomorphologic, 10Be terrestrial cosmogenic nuclide, and (U‐Th)/He zircon and apatite thermochronometric data provide the first numerical constraints on late Cretaceous to late Quaternary exhumation of the Inyo Mountains and vertical slip and horizontal extension rates across the eastern Inyo fault zone, California. The east‐dipping eastern Inyo fault zone bounds the eastern flank of the Inyo Mountains, a prominent geomorphic feature within the western Basin and Range Province and eastern California shear zone. (U‐Th)/He zircon and apatite thermochronometry yield age patterns across the range that are interpreted as indicating: (1) two episodes of moderate to rapid exhumation associated with Laramide deformation during the late Cretaceous/early Tertiary; (2) development of a slowly eroding surface during a prolonged period from early Eocene to middle Miocene; (3) rapid cooling, exhumation, and initiation of normal slip along the eastern Inyo fault zone, accommodated by westward tilting of the Inyo Mountains block, at 15.6 Ma; and (4) rapid cooling, exhumation, and renewed normal slip along the eastern Inyo fault zone at 2.8 Ma. Fault slip continues today as indicated by fault scarps that cut late Pleistocene alluvial fan surfaces. The second episode of normal slip at 2.8 Ma also signals onset of dextral slip along the Hunter Mountain fault, yielding a Pliocene dextral slip rate of 3.3 ± 1.0 mm/a, where a is years. Summing this dextral slip rate with estimated dextral slip rates along the Owens Valley, Death Valley, and Stateline faults yields a net geologic dextral slip rate across the eastern California shear zone of 9.3 + 2.2/–1.4 to 9.8 + 1.4/–1.0 mm/a.

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“…15 Ma), when the Inyo Block is interpreted to have undergone rapid uplift and westward tilting along the East Inyo Fault (Figures 3 and 5) based on (U-Th)/He ages reported by Lee et al [24]. This event predated alluvial-fan sedimentation on the east side of the Inyo Mountains that began around 13 Ma [35,94]. Lee et al [24] suggested that normal slip on the Sierra Nevada frontal fault zone (Independence Fault; Figure 3) also could have begun more or less simultaneously with this deformation, with the west-tilted Inyo Block forming a half-graben in its hanging wall.…”

Section: Owens Basin and Independence Blockmentioning

confidence: 87%

“…This age-depth relation suggests that the oldest sediments in Owens Basin could be several million years old. Tilted and dissected fanglomerates of latest Miocene to Pliocene age have been documented on the west flank of the Inyo Mountains east of Owens Lake [94] and near Mazourka Canyon [95,96].…”

Section: Owens Basin and Independence Blockmentioning

confidence: 99%

Structural Evolution of the East Sierra Valley System (Owens Valley and Vicinity), California: A Geologic and Geophysical Synthesis

2013

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The tectonically active East Sierra Valley System (ESVS), which comprises the westernmost part of the Walker Lane-Eastern California Shear Zone, marks the boundary between the highly extended Basin and Range Province and the largely coherent Sierra Nevada-Great Valley microplate (SN-GVm), which is moving relatively NW. The recent history of the ESVS is characterized by oblique extension partitioned between NNW-striking normal and strike-slip faults oriented at an angle to the more northwesterly relative motion of the SN-GVm. Spatially variable extension and right-lateral shear have resulted in a longitudinally segmented valley system composed of diverse geomorphic and structural elements, including a discontinuous series of deep basins detected through analysis of isostatic gravity anomalies. Extension in the ESVS probably began in the middle Miocene in response to initial westward movement of the SN-GVm relative to the Colorado Plateau. At ca. 3-3.5 Ma, the SN-GVm became structurally separated from blocks directly to the east, resulting in significant basin-forming deformation in the ESVS. We propose a structural model that links high-angle normal faulting in the ESVS with coeval low-angle detachment faulting in adjacent areas to the east.

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Geologic map of the Cerro Gordo Peak 7.5' Quadrangle, Inyo County, California

Cited by 12 publications

References 28 publications

Owens Lake dune fields: Composition, sources of sand, and transport pathways

Owens Lake dune fields: Composition, sources of sand, and transport pathways

Exhumation of the Inyo Mountains, California: Implications for the timing of extension along the western boundary of the Basin and Range Province and distribution of dextral fault slip rates across the eastern California shear zone

Structural Evolution of the East Sierra Valley System (Owens Valley and Vicinity), California: A Geologic and Geophysical Synthesis

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