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Blakeley Formation

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Journal Article
Published: 01 March 1977
Journal of Sedimentary Research (1977) 47 (1): 78-88.
...H. McLean Abstract Along the south shore of Bainbridge Island and north shore of the Kitsap Peninsula, Wash., the Blakeley Formation of Weaver (1912), consists of approximately 2,400 m of volcaniclastic sandstone, conglomerate, mudstone, and shale that is interpreted to be part of an ancient...
Journal Article
Journal: AAPG Bulletin
Published: 01 February 1957
AAPG Bulletin (1957) 41 (2): 353-354.
... found in the upper part of the Poul Creek formation in association with Mollusca and Foraminifera that indicate correlation with the Blakeley formation of Weaver (1912), the Twin River formation of Arnold and Hannibal (1913), and the upper part of the Lincoln formation of Weaver (1912) in Washington...
Series: GSA Field Guides
Published: 01 January 2017
DOI: 10.1130/2017.0049(01)
EISBN: 9780813756493
..., followed by late Eocene and Oligocene marine deposition of the Blakeley Formation in the Cascadia forearc. Older Quaternary deposits are locally exposed. Most of the city is underlain by up to 100 m of glacial drift deposited during the Vashon stade of Fraser glaciation, 18–15 cal k.y. B.P. Vashon Drift...
FIGURES | View All (13)
Journal Article
Published: 01 May 1984
Journal of Paleontology (1984) 58 (3): 718-737.
... cassid species of the genus Liraccassis occur in the Pacific Northwest: L. rex, L. apta, and L. durhami. Liracassis rex is older than L. apta and is restricted to the Liracassis ["Echinophoria"] rex Molluscan Zone, which includes the type section of the Blakeley Formation of Weaver (1912) in Washington...
Journal Article
Published: 01 March 1973
Canadian Journal of Earth Sciences (1973) 10 (3): 331-365.
... if the presence of Bulimina schencki fauna will be confirmed.4. The upper part of Division B contains an apparently Lower Blakeley macrofauna suggestive of late Oligocene age in terms of the generally accepted molluskan chronology. The early to mid-Zemorrian (=mid-Oligocene) dating of its foraminifer fauna...
Journal Article
Journal: AAPG Bulletin
Published: 01 February 1973
AAPG Bulletin (1973) 57 (2): 439-440.
... workers have placed the base of the Miocene as low as the lowest beds of the Vaqueros Formation, a Blakeley Oligocene age-equivalent and placed the top to include even the Pliocene Etchegoin Formation. The persistence on the West Coast of these middle Tertiary boundary problems has been due in part...
Journal Article
Journal: AAPG Bulletin
Published: 01 October 1982
AAPG Bulletin (1982) 66 (10): 1702.
... Basalt (middle Miocene, Columbia River Basalt Group). As originally described, the Scappoose Formation was said to be of late Oligocene to early Miocene age, based on fossils of “Blakeley age.” However, recent work shows that basaltic conglomerate lenses in fluvial arkosic sandstone with interbedded...
Journal Article
Journal: AAPG Bulletin
Published: 01 April 1973
AAPG Bulletin (1973) 57 (4): 768.
...John M. Armentrout ABSTRACT Molluscan faunas of the Lincoln Creek Formation, southwestern Washington, represent 6 provincial invertebrate Opellian zones. Continuous late Eocene to early Miocene sequences have been studied in 6 sections where both mollusks and benthonic foraminifers are abundant...
Journal Article
Journal: AAPG Bulletin
Published: 01 October 1958
AAPG Bulletin (1958) 42 (10): 2492-2512.
... conformably on the Seattle formation of Arnold and Hannibal (equivalent to the Blakeley formation of Weaver, 1912 ) and, toward the west near Pysht Bay, to be in fault contact with the Monterey formation of Arnold and Hannibal. This definition of the Twin River formation in terms of underlying and overlying...
FIGURES | View All (9)
Journal Article
Published: 29 May 2008
Canadian Journal of Earth Sciences (2008) 45 (4): 499-507.
... Miocene. Clark and Arnold (1923) correlated the Sooke invertebrate faunas with those of the Blakeley Formation, on Bainbridge Island, across Puget Sound from Seattle, Washington. However, the correlation used by Clark and Arnold (1923) was based on fossils from the Carmanah Point area of Vancouver...
FIGURES | View All (4)
Image
Fig. 4.   Correlation of the Sooke <b>Formation</b>, based on the dates and age co...
Published: 29 May 2008
(2001) . Magnetic stratigraphy of the Blakeley section after Prothero and Nesbitt (in press). Time scale after Berggren et al. (1995) and Prothero (2001) . Fm., Formation; L. Eoc., Late Eocene; Mioc., Miocene; Sauc., Saucesian; Pillar, Pillarian.
Image
(Top) A portion of SHIPS seismic reflection line PS-2 and coincident P-wave...
Published: 01 August 2004
faults F1 to F12 that root into the roof thrust (blue lines) and the base of the Miocene Blakely Harbor Formation (orange line) are also identified. Reflections labeled A are interpreted as overmigrated reflections within the Blakeley Formation. North-dipping reflectors labeled B are interpreted
Image
(A) Map of Seattle fault zone modified from  Blakely et al. (2002) . (B) Li...
Published: 01 November 2008
. The coastline is fringed by a wave-cut platform that emerged ~1100 yr ago ( Bucknam et al., 1992 ). The platform exposes tilted strata of the Miocene Blakely Harbor and Eocene Blakeley formations. Strike and dip measurements from Fulmer (1975) and McLean (1977) .
Journal Article
Journal: AAPG Bulletin
Published: 01 October 1945
AAPG Bulletin (1945) 29 (10): 1377-1415.
... intrusive rocks. The formations in eastern Oregon and Washington and in the Cascade Mountains constitute the base on which rests a thick series of Tertiary lavas and associated lacustrine and fluviatile sediments. The core of the Olympic Mountains consists of greatly indurated but not metamorphosed...
FIGURES
Journal Article
Journal: AAPG Bulletin
Published: 01 April 1985
AAPG Bulletin (1985) 69 (4): 627-643.
..., the Keasey Formation is very tuffaceous. The shales contain abundant, expandable clay minerals (montmoril-lonite identified by x-ray diffraction; J. Sawlan, 1982, written communication) and, along with equally lithic-rich temporal equivalents, such as the Lincoln and Blakeley Formations of Washington...
FIGURES | View All (21)
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(A) Cross section showing observed dips of bedding on south end of Bainbrid...
Published: 01 November 2008
discusses an alternative interpretation ( Fig. 9 ). Cr—Eocene Crescent Formation basalt; Eo—Eocene sediment; Bl—Blakeley Formation; Bh—Blakely Harbor Formation; Q/T—Quaternary and late Tertiary (post–Miocene) sediment.
Image
The 2D velocity model derived from the final  P -wave velocity model  with ...
Published: 01 October 2007
Formation, Tbh; Blakeley Formation, Tb; Eocene, Eo; Crescent Formation, Cr.
Image
Schematic structural cross section along the Puget Sound, based on Figures ...
Published: 01 August 2004
Point Robinson earthquakes ( Dewberry and Crosson, 1996 ; Blakely et al. , 2002 ) are superimposed. (C) Cross section from this study for a section through the Catfish Lake scarp, the Hofert #1 well, and Gold Mountain ( Fig. 11 ). Abbreviations: Bh, Blakely Harbor Formation; Bl, Blakeley Formation; Eo
Journal Article
Journal: GSA Bulletin
Published: 01 January 2002
GSA Bulletin (2002) 114 (1): 43-50.
... correlate with the Imnaha and Grande Ronde Basalt Formations of the Columbia River Basalt Group. New dates indicate that Imnaha and Grande Ronde Basalt Formations on the Columbia Plateau (>90% of the Columbia River Basalt Group) erupted between 16.1 and 15.0 Ma. These were immediately preceded...
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Journal Article
Published: 01 October 2007
Bulletin of the Seismological Society of America (2007) 97 (5): 1432-1448.
... Formation, Tbh; Blakeley Formation, Tb; Eocene, Eo; Crescent Formation, Cr. ...
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