Late Devonian to early carboniferous turbidite facies and basinal development of the Eastern Klamath Mountains, California

Watkins, Rodney

doi:10.1016/0037-0738(86)90015-1

Cited by 10 publications

(8 citation statements)

References 22 publications

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“…Locally, shallow-water facies are present [Miller, 1986]. In the central part of the eastern Klamath terrane, the section is dominated by lavas [Watkins, 1985]. The transition to shallow-water deposition and the accompanying increase in volcanogenic sedimentation suggest localized uplift and variable outbuilding of volcanic debris aprons.…”

Section: In Summary In the Northern Sierra Terrane A Diverse Assembmentioning

confidence: 99%

“…Based on brachiopods and corals, the age of the Baird Formation ranges from Late Mississippian to Late Pennsylvanian or Early Permian(? ); however, locally the entire Pennsylvanian record may be missing (Watkins [1973(Watkins [ , 1985; see also Yancey [1986] and Watkins [1986b]).…”

Section: In Summary In the Northern Sierra Terrane A Diverse Assembmentioning

confidence: 99%

“…Early Permian carbonate platform development occurred in two stages. A lower Wolfcampian carbonate platform developed in the southern and central parts of the presently exposed belt, and an upper Wolfcampian to lower Leonardian platform overlapped it, extending further northward [Watkins, 1985]. In both stages of platform development, shallower-water facies occur to the south, and distal, steepened ramps occur to the north [Watkins, 1985;Miller, 1986].…”

Section: In Summary In the Northern Sierra Terrane A Diverse Assembmentioning

confidence: 99%

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Dispersed remnants of a northeast Pacific fringing arc: Upper Paleozoic terranes of Permian McCloud Faunal affinity, western U.S.

Miller¹

1987

Tectonics

102

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Two fragmentary, subparallel belts of terranes within the western North American Cordillera contain upper Paleozoic rocks and are characterized by contrasting lithotectonic assemblages and contrasting Permian faunal affinity. These two belts are (A) volcanic-arc related successions of Permian McCloud faunal affinity (McCloud belt) and (B)•bd•ctio•related accretionary complexes of Permian Tethyan faunal affinity (Cache Creek belt). This paper supports the hypothesis that the fragmentary terranes of the McCloud belt once constituted parts of a northeast Pacific fringing-arc system and, in constrast to some earlier interpretations, concludes that the volcanic arc evolved above an eastward dipping subduction zone. The absolute distance between this arc and western North America during the late Paleozoic cannot be constrained, however, there is little evidence to suggest closure of a major (> 103 kin) ocean basin or protracted periods of westward dipping subduction. Parts of Devonian to Permian volcanic island arc sequences of the western U.S. Cordillera are represented in the northern Sierra, eastern Klamath, Bilk Creek, Grindstone, and Chilliwack terranes. These scattered volcanic arc remnants share several fundamental characteristics: (1) The sequences were constructed across continental-affinity basement assemblages. (2) They underwent similar tectonic evolution during late Paleozoic time, such as coeval pulses in volcanism and related depositional histories. (3) They contain Early Permian McCloud-type fauna, of distinctive biogeographic affinity. (4) McCloud belt terranes are spatially and possibly genetically related to westward lying accretionary complexes of the Cache Creek belt which contain fragments of Upper Triassic blueschist and Permian limestone blocks bearing Tethyan Permian fusulinids and corals. Based on the presence of distinctive Early Permian McCloud fauna, the island arc remnants discussed in this paper are referred to as the McCloud belt. The similarities between McCloud belt terranes suggest that they were once parts of a long-lived late Paleozoic volcanic arc complex. The stratigraphy of these terranes records the tectonic evolution of the volcanic arc. Volcanism within the Paleozoic arc began as early as the Early Devonian, and was succeeded or accompanied by carbonate and epiclastic sedimentation during the Middle and Late Devonian. An influx of detritus derived from sedimentary and metasedimentary rocks during the Late Devonian and Mississippian records the uplift and erosion of arc basement sequences, an event that was, at least locally, accompanied by ongoing volcanism. A pulse in volcanism during the Pennsylvanian and coeval uplift led to the establishment of shallow marine and deltaic volcanogenic and carbonate sedimentation and, locally, subaerial exposure which persisted into the early Early Permian. Elsewhere during the Early Permian, shallow-water carbonate deposition was established, with only minor influx of volcanogenic debris. During the Late Permian, and locally as early as lat...

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Section: In Summary In the Northern Sierra Terrane A Diverse Assembmentioning

confidence: 99%

Section: In Summary In the Northern Sierra Terrane A Diverse Assembmentioning

confidence: 99%

Section: In Summary In the Northern Sierra Terrane A Diverse Assembmentioning

confidence: 99%

See 1 more Smart Citation

Dispersed remnants of a northeast Pacific fringing arc: Upper Paleozoic terranes of Permian McCloud Faunal affinity, western U.S.

Miller¹

1987

Tectonics

102

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“…It probably preceded deposition of the sandstones with quartzose and sedimentary/metasedimentary-lithic detritus that occur in the Bragdon Formation of the eastern Klamath terrane. These sandstones are late Middle Devonian to Late Mississippian (Watkins, 1986), and were inferred by Miller and Cui (1989) and Miller and Saleeby (1989) to have been derived from a source lithologically and isotopically similar to the Shoo Fly Complex or the Yreka terrane. Because lithologic and chronologic correlatives of the Copley Greenstone occur in the Yreka terrane (see discussion above) and have not been reported in the northern Sierra, we infer that the Yreka terrane was closer to the eastern Klamath terrane in the Devonian than was the Shoo Fly Complex, and was more likely to be the source.…”

Section: Paleogeographymentioning

confidence: 97%

“…Because lithologic and chronologic correlatives of the Copley Greenstone occur in the Yreka terrane (see discussion above) and have not been reported in the northern Sierra, we infer that the Yreka terrane was closer to the eastern Klamath terrane in the Devonian than was the Shoo Fly Complex, and was more likely to be the source. (Paleocurrent data of Watkins, 1986, are too sparse to define the source area. )…”

Section: Paleogeographymentioning

confidence: 99%

Early Paleozoic stratigraphic, paleogeographic, and biogeographic relations of the eastern Klamath belt, northern California

Potter¹,

Boucot²,

Bergström³

et al. 1990

Geological Society of America Special Papers

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The eastern Klamath belt contains the fault-bounded Yreka, Trinity, and eastern Klamath terranes. The Yreka terrane comprises Lower Cambrian to Middle Devonian or younger igneous, metamorphic, and sedimentary rocks. The Trinity terrane consists of the Trinity ultramafic-mafic complex of Ordovician to Silurian age and an amphibolitic gabbro unit of Early Cambrian age. The eastern Klamath terrane bears igneous and sedimentary rocks of Early Devonian to Middle Jurassic age.Stratigraphic and intrusive relations imply that the Yreka and Trinity terranes were amalgamated by Early to Middle? Devonian time and that the Trinity terrane was the basement on which the eastern Klamath terrane formed.The lower Paleozoic rocks of the Yreka and eastern Klamath terranes are interpreted to represent the remnants of an Early Cambrian arc overlain by part of an Ordovician to Devonian arc-trench complex that faced west to northwest (present coordinates)

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The origin of geochemical variations in a late permian volcanic arc, eastern klamath mountains, California

Alibert

Martin

Lapierre

1991

Journal of Volcanology and Geothermal Research

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Late Devonian to early carboniferous turbidite facies and basinal development of the Eastern Klamath Mountains, California

Cited by 10 publications

References 22 publications

Dispersed remnants of a northeast Pacific fringing arc: Upper Paleozoic terranes of Permian McCloud Faunal affinity, western U.S.

Dispersed remnants of a northeast Pacific fringing arc: Upper Paleozoic terranes of Permian McCloud Faunal affinity, western U.S.

Early Paleozoic stratigraphic, paleogeographic, and biogeographic relations of the eastern Klamath belt, northern California

The origin of geochemical variations in a late permian volcanic arc, eastern klamath mountains, California

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