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Sonomia

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Series: GSA Special Papers
Published: 01 January 1984
DOI: 10.1130/SPE196-p307
... Norian (Upper Triassic) sediments in western Nevada were deposited in a west-facing successor basin which was formed following the collision of the microcontinent Sonomia in the Late Paleozoic. These strata were deposited on a shelf and in a deep basin and consist of siliciclastic sandy...
Journal Article
Published: 01 January 1986
Journal of the Geological Society (1986) 143 (1): 209–216.
... (Hallam 1977). The occurrence of Weyla in Wrangellia, Stikinia and the John Day (Oregon) and Sonomia (Nevada) terranes is a clear indication of E Pacific affinities. All the cited genera, except the boreal Arctoasteroceras, occur in the Andes of Peru and N Chile, for which there is no evidence...
Journal Article
Published: 01 September 2007
Journal of Sedimentary Research (2007) 77 (9): 784–796.
... 1997 ; Dickinson and Lawton 2003 ). The Permian–Triassic Sonoma orogeny also likely involved a west-dipping subduction zone. The collision of North America with the microcontinent Sonomia accreted continental crust to the Cordilleran margin and led to a reversal in subduction polarity ( Speed 1979...
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Journal Article
Journal: Economic Geology
Published: 01 April 2003
Economic Geology (2003) 98 (2): 269–286.
... the stratigraphically defined continental edge to be located at the suture between the Precambrian crust and the Paleozoic arc (Sonomia) that was accreted in Late Permian to Early Triassic time. They suggest that vertical movement occurred along the suture zone as accretion stresses relaxed, accompanied by basaltic...
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Journal Article
Published: 18 April 2017
Geological Magazine (2018) 155 (6): 1305–1329.
..., 2004 , 2006 , 2013 ). Similarly to the Antler orogeny, the Sonoma orogeny is the result of the eastwards migration and accretion of exotic island-arc systems belonging to the Sonomia microplate onto the North American Plate around the Permian–Triassic boundary (Burchfiel & Davis, 1975...
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Journal Article
Journal: Geosphere
Published: 16 December 2019
Geosphere (2020) 16 (1): 258–280.
... magmatique dans l’évolution de la bordure de la microplaque Sonomia : Comptes Rendus de l’Académie des Sciences, ser. II , v. 307 , p. 57 – 62 . Rouer , O. , Lapierre , H. , Coulon , C. , and Michard , A. , 1989 , New petrological and geochemical data on mid-Paleozoic island-arc...
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Journal Article
Published: 01 September 1999
Journal of the Geological Society (1999) 156 (5): 929–941.
... Valley Sequence; SO, Smartville ophiolite; CB, Central Belt; EB, Eastern Belt; SNB, Sierra Nevada Batholith; WLB, Walker Lane Belt; HC, Humboldt complex; SA, Sonomia allochthon; GA, Golconda allochthon; RMA, Roberts Mountain allochthon. Eastern Turkey: NAF, North Anatolian Fault; CACC, Central Anatolian...
Journal Article
Published: 01 July 2021
Journal of Paleontology (2021) 95 (4): 653–672.
... ) documented continuous interchange between the three main realms—Paleotethys, North American, and Boreal ( Fig. 2 )—but not exclusive provincialism. Ross ( 1995 ) introduced a fourth realm, called Panthalassa or Sonomia, including some terranes in parts of Japan, the southern Russian Far East, British...
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Series: Society of Economic Geologists Guidebook Series
Published: 01 January 2000
DOI: 10.5382/GB.32
EISBN: 9781934969854
... in the Sierra Nevada and Klamath Mountains as candidates for the Antler arc and Sonomia ( Burchfiel and Davis, 1972 ; Speed, 1977 ; Speed and Sleep, 1982 ; Miller and Harwood, 1990 ). These rocks, however, generally have different tectonic histories from coeval rocks in central Nevada ( Jones, 1990 ). Rocks...
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