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Bragdon Formation

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Journal Article
Journal: GSA Bulletin
Published: 01 February 1991
GSA Bulletin (1991) 103 (2): 268–276.
...M. MEGHAN MILLER; JASON B. SALEEBY Abstract New U-Pb isotopic data for detrital zircon populations from the Upper Devonian(?) and lower Carboniferous Bragdon Formation add constraints to the nature of source areas for epiclastic rocks in the ensimatic eastern Klamath arc terrane. Bragdon clastic...
Journal Article
Published: 01 May 1989
Canadian Journal of Earth Sciences (1989) 26 (5): 927–940.
...M. Meghan Miller; Bingquan Cui Abstract The Carboniferous Bragdon Formation comprises sandstone, argillite, and conglomerate, which were deposited in a hybrid submarine-fan setting. The Bragdon Formation contains a crudely progradational succession of sand-rich turbidites and intercalated channel...
Journal Article
Journal: AAPG Bulletin
Published: 01 September 1973
AAPG Bulletin (1973) 57 (9): 1743–1764.
...Rodney Watkins ABSTRACT Carboniferous rock units on the eastern flank of the Klamath Mountains, northern California, include the upper Mississippian Bragdon Formation, upper Mississippian and Pennsylvanian Baird Formation, and possibly the basal part of the predominantly lower Permian McCloud...
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Image
—Measured sections of uppermost conglomerate-bearing bed of <span class="search-highlight">Bragdon</span> Formati...
Published: 01 September 1973
Fig. 8. —Measured sections of uppermost conglomerate-bearing bed of Bragdon Formation. Mean grain sizes are based on measurements of 100 grains in section per sample, and have been converted according to Friedman (1962) . Locations of beds are found with reference to designated structural block.
Image
1,  general location of samples;  2,  detailed geology of area based on map...
Published: 01 May 2012
F igure 1 1, general location of samples; 2, detailed geology of area based on mapping of Watkins (1973) indicating location of samples. Dashed line shows position of a road; solid line indicates formational boundaries. B = lower Carboniferous Bragdon Formation; D = diorite intrusions; M
Image
Figure 1. (A) Geologic map of the central Klamath Mountains, California. Bl...
Published: 01 December 2002
rocks; K—Cretaceous Great Valley Sequence; Kpl—Cretaceous plutonic rocks; Mzpl—Mesozoic plutonic rocks; wpt—North Fork and Hayfork terrane rocks—undifferentiated; sf—Stuart Fork terrane; cm—Central Metamorphic terrane; rdu—Redding terrane, undifferentiated; DMb—Bragdon Formation; Dc—Copley greenstone
Journal Article
Journal: GSA Bulletin
Published: 01 December 2002
GSA Bulletin (2002) 114 (12): 1520–1534.
... rocks; K—Cretaceous Great Valley Sequence; Kpl—Cretaceous plutonic rocks; Mzpl—Mesozoic plutonic rocks; wpt—North Fork and Hayfork terrane rocks—undifferentiated; sf—Stuart Fork terrane; cm—Central Metamorphic terrane; rdu—Redding terrane, undifferentiated; DMb—Bragdon Formation; Dc—Copley greenstone...
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Relative Abundances of Grain Sizes and Constituents in Sandstone of <span class="search-highlight">Bragdon</span>...
Published: 01 September 1973
Table 7. Relative Abundances of Grain Sizes and Constituents in Sandstone of Bragdon and Baird Formations
Image
—Relative abundances of major animal groups in faunal associations of Bragd...
Published: 01 September 1973
Fig. 9. —Relative abundances of major animal groups in faunal associations of Bragdon, Baird, and McCloud Formations. S, Striatifera association; CA, Dorsoscyphus association; A, Astartella association; T, Trepospira association; R, Rugosochonetes association; CO , coral associations; M
Series: GSA Special Papers
Published: 01 July 2008
DOI: 10.1130/2008.2438(11)
... New single-grain detrital zircon U-Pb age data from sandstone lenses in the Upper Jurassic Mariposa Formation of the Sierra Nevada foothills metamorphic belt indicate that: (1) the earliest phase of clastic sedimentation mainly involved material derived from the Bragdon and Baird Formations...
Journal Article
Journal: GSA Bulletin
Published: 01 February 1989
GSA Bulletin (1989) 101 (2): 170–187.
... successions of water-laid volcanic debris and lavas, with interstratified carbonate and clastic sequences. This study focuses on the upper Paleozoic rocks within the section. The oldest rocks studied, within the Upper Devonian(?) and Mississippian Brag-don Formation, contain epiclastic debris...
Journal Article
Published: 01 September 1993
Journal of Sedimentary Research (1993) 63 (5): 966–973.
...Rodney Watkins Abstract Carboniferous volcaniclastic-arc deposits of the eastern Klamath terrane, California, include Late Visean/Namurian limestone lenses that formed as small carbonate banks. The limestone lenses, within the Bragdon and Baird formations, reach 17 m in thickness and 1.2 km...
Journal Article
Published: 01 May 2012
Journal of Paleontology (2012) 86 (3): 513–520.
...F igure 1 1, general location of samples; 2, detailed geology of area based on mapping of Watkins (1973) indicating location of samples. Dashed line shows position of a road; solid line indicates formational boundaries. B = lower Carboniferous Bragdon Formation; D = diorite intrusions; M...
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Figure 7. Relative probability-density distribution plots showing only pre-...
Published: 01 January 2008
Figure 7. Relative probability-density distribution plots showing only pre-Mesozoic zircons. All pre-200 Ma grains were combined to show the full range represented by the five analyzed Mariposa sandstones samples. References for other detrital zircon distributions are: Bragdon and Baird formations
Journal Article
Published: 08 October 2010
Canadian Journal of Earth Sciences (2010) 47 (10): 1347–1366.
..., Bragdon Fm.; CC, Cache Creek terrane; CPC, Coast Plutonic Complex; CS, Chatham Sound area; Cz, Cenozoic; DC, Dorsey Complex; EK, Eastern Klamath; FR, Franciscan terrane; G, Grindstone terrane; GC, Golconda allochthon; GVS, Great Valley Sequence; GW, Gateway Formation; GL, Glenlyon area; HC, Horsethief...
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Fig. 1.   Terranes and localities in the northern North American Cordillera...
Published: 08 October 2010
Fig. 1. Terranes and localities in the northern North American Cordillera. AL, Arrow Lake area; AX, Alexander terrane; BA, Baker terrane; B, Belt–Purcell Supergroup; BR, Bragdon Fm.; CC, Cache Creek terrane; CPC, Coast Plutonic Complex; CS, Chatham Sound area; Cz, Cenozoic; DC, Dorsey Complex; EK
Journal Article
Published: 01 September 1992
Journal of the Geological Society (1992) 149 (5): 743–750.
...- physics. Van Nostrand Reinhold Company, Inc., 9-20. - & -1991a. Continental detrital zircon in Carboniferous ensimatic arc rocks, Bragdon Formation, eastern Klamath terrane, northern California. Geological Society of America Bulletin, 102, 268-276. - & -19916. Permian and Triassic paleogeography...
Series: GSA Special Papers
Published: 01 January 2006
DOI: 10.1130/2006.2410(21)
... 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 sheet mafic/ultramafic rocks of the footwall ( Irwin, 1963 ; Fig. 1 ). Irwin described the La Grange...
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Journal Article
Journal: GSA Bulletin
Published: 01 January 2008
GSA Bulletin (2008) 120 (1-2): 179–194.
...Figure 7. Relative probability-density distribution plots showing only pre-Mesozoic zircons. All pre-200 Ma grains were combined to show the full range represented by the five analyzed Mariposa sandstones samples. References for other detrital zircon distributions are: Bragdon and Baird formations...
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Journal Article
Journal: AAPG Bulletin
Published: 01 January 1966
AAPG Bulletin (1966) 50 (1): 25–71.
... : Am. Assoc. Petroleum Geologists Bull. , v. 47 , p. 2023 - 2038 . Hart , S. R. , and Dodd , R. T. , 1962 . Excess radiogenic argon in pyroxenes : Jour. Geophys. Research , v. 67 , p. 2998 - 2999 . Hershey , O. H. , 1904 , The Bragdon Formation in northwestern California...
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