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Weaverville Formation

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Journal Article
Journal: Palynology
Published: 01 October 1989
Palynology (1989) 13 (1): 195-246.
Journal Article
Published: 01 July 1998
Canadian Journal of Earth Sciences (1998) 35 (7): 735-745.
...K R Aalto; W D Sharp; P R Renne Abstract Sandstones of the Eocene-Miocene Hoh assemblage of the Olympic Peninsula and Late Oligocene - Miocene Weaverville Formation (Klamath Mountains) were studied to determine if the Hoh sandstones could be tectonically transported equivalents of the Weaverville...
Series: Guidebook
Publisher: The Pacific Section American Association of Petroleum Geologist
Published: 01 January 1992
DOI: 10.32375/1992-GB71.2
EISBN: 9781732014824
... by Underwood & Bachman (1986). The source of the older micas remains enigmatic, but may be reset Devonian Abrams Schist of the centxal Klamath Mountains. Fluvial conglomerates and sandstones of the Upper Oligocene-Lower Miocene Weaverville Formation and Lower Pliocene Wimer Formation in the Klamath...
Journal Article
Journal: Geology
Published: 01 February 1982
Geology (1982) 10 (2): 82-87.
... to Upper Cretaceous Great Valley sequence, Upper Cretaceous Hornbrook Formation, Eocene Montgomery Creek Formation, and Oligocene(?) Weaverville Formation. Cretaceous samples that survived the remagnetization have a mean remanence direction that is very close to the expected direction of the Cretaceous...
Journal Article
Journal: GSA Bulletin
Published: 01 January 2004
GSA Bulletin (2004) 116 (1-2): 60-75.
.... An important issue is whether there is any independent evidence for coast-parallel transport of the Coastal OSC. We use provenance information here to evaluate this possibility. Aalto et al. (1995) proposed that the upper Oligocene–lower Miocene Weaverville Formation in the Klamath Mountains might...
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Journal Article
Journal: AAPG Bulletin
Published: 01 January 1966
AAPG Bulletin (1966) 50 (1): 25-71.
...John G. Koch ABSTRACT During Nevadan orogenesis ( ca . 145 m.y. ago), the Galice(?) Formation was regionally metamorphosed (greenschist facies) to phyllites and schists of the Colebrooke Formation, the Pearse Peak Diorite was emplaced, and the Port Orford-Gold Beach area, Oregon, underwent intense...
FIGURES | View All (25)
Image
Figure 1. (A) Geologic map of the central Klamath Mountains, California. Bl...
Published: 01 December 2002
Figure 1. (A) Geologic map of the central Klamath Mountains, California. Black outlines show locations of detailed geologic maps ( Figs. 3 , 5 , 6 , and 7 ). Modified from compilation by Irwin (1994) . Units shown: Q—Quaternary alluvium; Tw—Tertiary Weaverville Formation; Czv—Cenozoic volcanic
Series: GSA Special Papers
Published: 01 January 2006
DOI: 10.1130/2006.2410(22)
... the Oligocene, perhaps accompanying initiation and growth of the La Grange detachment fault system that developed along with the unroofing of the Trinity ophiolite ( Schweickert and Irwin, 1989 ; Cashman and Cashman, this volume). Late Oligocene–early Miocene, locally-derived fluviatile Weaverville Formation...
FIGURES | View All (9)
Journal Article
Journal: Lithosphere
Published: 01 August 2015
Lithosphere (2015) 7 (4): 427-440.
..., exposed at the La Grange mine, records a prolonged, brittle fault history ( Fig. 2 ) Hydraulic mining of mid-Tertiary auriferous gravels (Weaverville Formation) created a 1-km-long exposure of the shallowly south-dipping fault surface. The normal-fault displacement of the La Grange fault places mid...
FIGURES | View All (6)
Journal Article
Journal: AAPG Bulletin
Published: 01 September 1973
AAPG Bulletin (1973) 57 (9): 1743-1764.
... of northwestern California : Am. Geologist , v. 27 , p. 225 – 245 . Hershey , O. H. , 1904 , The Bragdon Formation in northwestern California : Am. Geologist , v. 33 , p. 248 – 256 . Irwin , W. P. , 1963 , Preliminary geologic map of the Weaverville quadrangle, California : U.S. Geol...
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Image
Figure 8. Kinematic model for development of detachment faulting in the eas...
Published: 01 December 2002
by the steeply dipping fault at the northern margin of the Redding terrane. Tertiary basin-fill sediments of the Weaverville Formation are shown in gray
Journal Article
Journal: Geosphere
Published: 01 April 2008
Geosphere (2008) 4 (2): 329-353.
... Triassic–Jurassic arc assemblages exposed farther west by a compound suture belt of mélange and broken formation derived from the remnant ocean basin that separated the east-facing intraoceanic arc system from the Cordilleran margin. Polarity reversal after Middle to Late Jurassic arc-continent collision...
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Journal Article
Journal: AAPG Bulletin
Published: 01 October 1934
AAPG Bulletin (1934) 18 (10): 1346-1373.
... Formations of the Redding-Weaverville Districts, Northern California,” California State Div. Mines, Reft. 29 of State Mineralogist (1933), pp. 76–122. 8 J. S. Diller and T. W. Stanton, “The Shasta-Chico Series,” Bull. Geol. Soc. America , Vol. 5 (1894), pp. 438–44. C. A. Anderson, “The Tuscan...
FIGURES
Image
(A) Location map of the Cascadia region showing plate boundaries and geolog...
Published: 01 August 2015
line—La Grange detachment fault; the large gray arrow shows direction of transport of hanging-wall rocks relative to footwall (measured at La Grange mine, from Cashman and Elder, 2002 ). Basins containing Tertiary Weaverville Formation are shown with stipple pattern; Jurassic and Cretaceous plutons
Journal Article
Journal: GSA Bulletin
Published: 01 December 2002
GSA Bulletin (2002) 114 (12): 1520-1534.
...Figure 1. (A) Geologic map of the central Klamath Mountains, California. Black outlines show locations of detailed geologic maps ( Figs. 3 , 5 , 6 , and 7 ). Modified from compilation by Irwin (1994) . Units shown: Q—Quaternary alluvium; Tw—Tertiary Weaverville Formation; Czv—Cenozoic volcanic...
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Journal Article
Journal: Palynology
Published: 01 January 2005
Palynology (2005) 29 (1): 205-262.
...LINDA M. REININK-SMITH; ESTELLA B. LEOPOLD Abstract A study of the Homerian type section in the upper Beluga Formation (Upper Miocene) of the Kenai Group of southern Alaska has yielded two surprising discoveries: (1) warmth-loving taxa and (2) the presence in Alaska of a ‘new’ gymnosperm family...
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Series: GSA Special Papers
Published: 01 January 2006
DOI: 10.1130/2006.2410(21)
... mapped the La Grange fault as a northeast-striking, shallowly southeast-dipping fault that places Devonian Abrams Mica Schist, Mississippian Bragdon Formation(?), and mid-Tertiary Weaverville Formation rocks in the hanging-wall block over Devonian Salmon Hornblende Schist and earliest Paleozoic Trinity...
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Journal Article
Journal: AAPG Bulletin
Published: 01 February 1951
AAPG Bulletin (1951) 35 (2): 209-214.
... in Great Valley, California ,” Bull. Amer. Assoc. Petrol. Geol ., Vol. 29 , No. 7 (July, 1945 ), pp. 956 – 1007 . Hinds , N. E. A. , “ Geologic Formations of the Redding-Weaverville Districts, Northern California ,” California State Div. Mines Ann. Rept. 29 of the State Mineralogist ( 1933...
FIGURES
Image
Figure 3. Pattern of Mesozoic–Cenozoic accretionary tectonic belts flanking...
in > Geosphere
Published: 01 April 2008
Cove Formations; CM—metavolcanic rind of CMW; CoB—Coastal Belt Franciscan (see Figs. 5 and 6 ); CS—Colebrook (∼Pickett Peak) Schist; DF—Dothan-Franciscan subduction complex; EH—Eastern Hayfork belt; GVG—Great Valley Group; HC—Happy Camp window; Hf—Hornbrook Formation; MG—Myrtle Group; NF—North Fork
Journal Article
Journal: Palynology
Published: 01 June 2013
Palynology (2013) 37 (1): 48-61.
... . Proc Yorks Geol Soc. 53 : 275 – 302 . Barnett J . 1989 . Palynology and palaeoecology of the Tertiary Weaverville Formation, Northwestern California, USA . Palynology. 13 : 195 – 246 . Batten DJ Grenfell HR . 1996 . Botryococcus . In: Jansonius J McGregor DC...
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