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Trinity Subterrane

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Series: GSA Special Papers
Published: 01 July 2008
DOI: 10.1130/2008.442(01)
... Newly recognized cyclomedusoid fossils in the Antelope Mountain Quartzite confirm that it is latest Neoproterozoic (Ediacaran) in age. Biogeographic affinities of the cyclomedusoid fossils suggest that the Yreka subterrane and its close associate, the Trinity subterrane, formed after...
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Series: GSA Special Papers
Published: 01 January 2006
DOI: 10.1130/2006.2410(19)
... Metamorphic terrane represents a subducted piece of oceanic lithosphere accreted to the overlying Trinity subterrane; (2) Trinity and Redding subterranes represent mantle and magmatic-arc crust of the overriding lithospheric plate; and (3) east-dipping Trinity thrust, separating the Central Metamorphic...
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Series: GSA Special Papers
Published: 28 December 2018
DOI: 10.1130/2018.2540(11)
EISBN: 9780813795409
... Geissler and Mark Pecha for assistance with U-Pb and Hf isotopic analysis at the LaserChron Center at the University of Arizona. We acknowledge National Science Foundation (NSF) grant EAR-1032156 for support of the Arizona LaserChron Center. We thank current and former Trinity University undergraduate...
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Journal Article
Journal: GSA Bulletin
Published: 01 May 2017
GSA Bulletin (2017) 129 (5-6): 649–676.
... the Mesozoic–Cenozoic Brookian fold-and-thrust belt. Recognition of a major pre-Mississippian unconformity within the fenster led to previous correlations between the Apoon assemblage and age-equivalent strata in the North Slope subterrane of the composite Arctic Alaska–Chukotka microplate. Previous age...
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Journal Article
Journal: GSA Bulletin
Published: 01 November 2010
GSA Bulletin (2010) 122 (11-12): 1899–1911.
... in western Canada. Devonian strata of the Alexander terrane and Yreka subterrane (eastern Klamath terrane) have Caledonian and Baltican detrital zircon age signatures similar to Ellesmerian clastic wedge sandstones, implying that several Cordilleran terranes originated in the paleo-Arctic realm. Speculative...
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Series: Geological Society, London, Special Publications, Geological Society, London, Special Publications
Published: 01 January 2007
DOI: 10.1144/SP287.4
EISBN: 9781862395350
... concerning granite; whether it was to be considered as a body which had been originally stratified by the collection of its different minerals, and afterwards consolidated by the fusion of those materials; or whether it were not rather a body transfused from the subterraneous regions, and made to break...
FIGURES
Journal Article
Journal: Geosphere
Published: 16 December 2019
Geosphere (2020) 16 (1): 258–280.
... incorporated into the accretionary complex. In the mélange, blocks of Ediacaran tonalite, as well as sandstones having detrital zircon populations with non–western Laurentian sources, may have been derived from the Yreka and Trinity terranes in the eastern Klamath Mountains, where similar rock types occur...
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Image
A model for Late Devonian to Early Mississippian paleogeography of western ...
in > Geosphere
Published: 26 May 2017
; QN—Quesnellia terrane (includes Okanagan subterrane); EK—Eastern Klamath terrane (includes Yreka-Trinity subterrane); NS—Northern Sierra terrane (includes Sierra City–Shoo Fly subterrane).
Image
Late Devonian to early Mississippian (ca. 360 Ma) paleogeography (modified ...
Published: 01 November 2010
Alaska–Chukotka terrane, AX—Alexander terrane, Bar.—Barentsia, CL—Crockerland, OK—Okanagan subterrane, PT—Pearya terrane, YR—Yreka subterrane (including Trinity subterrane and Shoo Fly complex), YT—Yukon-Tanana terrane.
Image
Geologic map of the study area (modified from  Jennings et al., 2010 ) supe...
in > Geosphere
Published: 01 June 2016
—Cretaceous sedimentary rocks; Js—Jurassic sedimentary rocks; TRs—Triassic sedimentary rocks; mv—Mesozoic metavolcanic and intrusive rocks; Pzs—undifferentiated Paleozoic rocks (note Js, TRs, mv, and Pzs are part of the Redding subterrane); oph—Ordovician ophiolite (Trinity subterrane). White lines—major
Image
Circum-Arctic cratons, orogens, terranes, and locations modified from  Colp...
Published: 01 January 2013
of Arctic Alaska; SV, Svalbard; SZ, Severnaya Zemlya; TY, Trinity and Yreka subterranes.
Image
Figure 2. Geologic map showing terranes of the Klamath Mountains, generaliz...
Published: 01 January 2008
Figure 2. Geologic map showing terranes of the Klamath Mountains, generalized after Irwin (1994) and Irwin and Wooden (1999) . Most terrane boundaries are east-rooting thrust faults. Abbreviations for subterranes are as follows: E—Eastern Hayfork, R—Redding, T—Trinity, W—Western Hayfork, Y—Yreka
Journal Article
Journal: Geosphere
Published: 01 June 2016
Geosphere (2016) 12 (3): 790–808.
...—Cretaceous sedimentary rocks; Js—Jurassic sedimentary rocks; TRs—Triassic sedimentary rocks; mv—Mesozoic metavolcanic and intrusive rocks; Pzs—undifferentiated Paleozoic rocks (note Js, TRs, mv, and Pzs are part of the Redding subterrane); oph—Ordovician ophiolite (Trinity subterrane). White lines—major...
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Journal Article
Published: 01 January 2014
Rocky Mountain Geology (2014) 49 (2): 115–136.
... and southwest Oregon (provenance area 4 on Fig. 1 ). The area is primarily underlain by the eastern Klamath terrane, comprising variably deformed and metamorphosed rocks of the Yreka and Trinity subterranes (e.g., Lindsley-Griffin et al., 2006 , 2008 ). The Trinity subterrane is an Ediacaran and Cambrian...
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Series: GSA Special Papers
Published: 01 January 2006
DOI: 10.1130/2006.2410(01)
... of concurrent strike-slip faulting and extension (intra-arc transform fault), as presently manifested in the Andaman Sea north of Sumatra. Another ophiolitic assemblage that has a long history of study by various workers is the Trinity ultramafic-mafic complex (Trinity subterrane of Irwin, 1994 ) exposed...
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Journal Article
Published: 01 January 2013
Journal of the Geological Society (2013) 170 (1): 7–18.
... of Arctic Alaska; SV, Svalbard; SZ, Severnaya Zemlya; TY, Trinity and Yreka subterranes. ...
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Series: GSA Special Papers
Published: 01 January 2006
DOI: 10.1130/2006.2410(11)
... with each pluton are U-Pb (zircon) ages (Ma) unless noted as hornblende (h) or biotite (b) K-Ar ages or hornblende (H) 40 Ar/ 39 Ar ages. Data from this chapter and sources summarized in Irwin and Wooden (1999) . The eastern Klamath terrane consists of the Trinity, Redding, and Yreka subterranes...
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Journal Article
Journal: Geosphere
Published: 26 May 2017
Geosphere (2017) 13 (4): 1149–1172.
...; QN—Quesnellia terrane (includes Okanagan subterrane); EK—Eastern Klamath terrane (includes Yreka-Trinity subterrane); NS—Northern Sierra terrane (includes Sierra City–Shoo Fly subterrane). ...
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Series: Geological Society, London, Special Publications, Geological Society, London, Special Publications
Published: 01 January 2009
DOI: 10.1144/SP318.10
EISBN: 9781862395664
... continental margin. Fig. 3. Geological map of the Okanagan–Kootenay region of southern British Columbia (modified after Massey et al. 2005 ; Thompson et al. 2006 ). Detrital zircon samples reported by Lemieux et al. (2007) and other significant features of the Okanagan subterrane and southern...
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Series: GSA Special Papers
Published: 01 January 2006
DOI: 10.1130/2006.2410(21)
... terrane; TT—Trinity terrane; Tw—Tertiary Weaverville Formation; WKT—Western Klamath terrane; YT—Yreka subterrane. Modified from Irwin (1994) . Figure 2. View to the southwest of the La Grange fault exposure at the La Grange mine. A 20- to 30-cm-thick layer of foliated black cataclasite...
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