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Chief Joseph dike swarms

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Journal Article
Journal: GSA Bulletin
Published: 01 September 1983
GSA Bulletin (1983) 94 (9): 1117-1126.
...M. E. ROSS Abstract Four dikes within the western portion of the Chief Joseph dike swarm of the Mio-Pliocene Columbia River Basalt Group show systematic major-element, mineralogic, and textural trends across their widths. Two of the dikes are of Wanapum Basalt (Dodge chemical type) and served...
Series: GSA Special Papers
Published: 01 August 2013
DOI: 10.1130/2013.2497(11)
... crustal magma system (or chamber) that lasted from ca. 16.7 Ma to 16.0 Ma. The Imnaha–Grande Ronde magma system was centered beneath the location where the western Snake River Plain, Oregon-Idaho graben, and Chief Joseph dike swarm converge, and probably transgressed the cratonic boundary to the east...
Series: GSA Special Papers
Published: 01 August 2013
DOI: 10.1130/2013.2497(16)
... on the south and is juxtaposed between the Chief Joseph dike swarm on the east and the Monument dike swarm and the middle Miocene Strawberry volcanics on the west. Numerous volcanic vents, from which a diverse assemblage of tholeiitic, silicic, calc-alkaline, and alkalic lavas erupted, are contained within...
Series: GSA Field Guide
Published: 01 January 2016
DOI: 10.1130/2016.0041(04)
EISBN: 9780813756417
... or sheet flows, and are marked by a set of well-defined physical features that originated during their emplacement and solidification. This field trip focuses on the Lewiston Basin, in southeastern Washington, western Idaho, and northeastern Oregon, which contains the Chief Joseph dike swarm, where classic...
FIGURES | View All (14)
Series: GSA Special Papers
Published: 01 August 2013
DOI: 10.1130/2013.2497(05)
... in the interior and an abbreviated and variable stratigraphy along the margins. The areal extent of many flows suggests that the Chief Joseph dike swarm greatly expanded after Imnaha Basalt time, and now many dikes are buried beneath younger flows in the eastern part of the province. The Grande Ronde Basalt has...
Journal Article
Journal: Geology
Published: 01 May 1995
Geology (1995) 23 (5): 435-438.
... beneath the west-southwest–migrating North American plate. Thermal uplift mimics the vent migration. Over the 1.5 m.y. of Grande Ronde basalt extrusion, the projected crest of the plume head migrated 105 km (7 cm/yr), from the Chief Joseph dike swarm east-oortheast into the Clearwater embayment, where...
Journal Article
Journal: Geology
Published: 01 July 2002
Geology (2002) 30 (7): 647-650.
... acted as a barrier and guided the locus of melting. Camp (1995) noted that the inferred edge of the Precambrian cratonal margin resides just east of the Columbia River flood-basalt eruptive fissures (i.e., the Chief Joseph dike swarm, Fig. 1 ) and speculated that magma may have ponded against...
FIGURES | View All (4)
Journal Article
Journal: Geosphere
Published: 20 December 2018
Geosphere (2018) 15 (1): 60-84.
... River Basalt Group (CRBG), including the Steens, Imnaha, Picture Gorge, and Grande Ronde Basalts, erupted between ca. 16.8 and ca. 15.9 Ma from a series of dikes associated with the Steens, Chief Joseph, and Monument dike swarms ( Fig. 1 ) ( Camp and Ross, 2004 ; Camp et al., 2003 ; Wolff et al., 2008...
FIGURES | View All (17)
Journal Article
Journal: GSA Bulletin
Published: 23 June 2017
GSA Bulletin (2017) 129 (9-10): 1027-1051.
... south-southwest from Steens Mountain. The temporal, spatial, and compositional patterns of rhyolitic magmatism along both trends are consistent with rapid southward propagation of flood basalt dike swarms associated with emplacement of the Yellowstone plume head. † trb@stanford.edu 28 08...
FIGURES | View All (14)
Journal Article
Journal: Geosphere
Published: 01 April 2015
Geosphere (2015) 11 (2): 203-225.
.... Although ∼85% of the flood basalt volume (∼175,000 km 3 ) erupted from the Chief Joseph dike swarm ( Fig. 4 ), the magnitude of extension in this region is <<1%, only enough to accommodate the width of the combined dikes ( Taubeneck, 1970 ). In the mid-Miocene, the Chief Joseph dike swarm represents...
FIGURES | View All (9)
Image
(A) Sketch map of the Columbia River Basalt Province (gray shaded), showing...
Published: 01 July 2014
region according to Wolff et al. (2008) . Dotted ovals encompass dike swarms: M—monument dike swarm; CJ—Chief Joseph dike swarm (including Roza Member dikes). (B) Map of the northern end of the Roza vent system (area enclosed in rectangle on A) showing outcrops of pyroclastic rocks and names
Series: GSA Field Guide
Published: 01 January 2009
DOI: 10.1130/2009.fld015(28)
EISBN: 9780813756158
... Chief Joseph dikes have been identified to formation level, and some have been correlated with individual CRBG flows (Fig. 12 ). In general, dikes of Grande Ronde and Wanapum Basalts are located throughout the swarm, although exposures of Wanapum dikes and Grande Ronde flows indicate that they extend...
Image
P-wave seismic velocity model and surface geology. (Bottom) Velocity contou...
Published: 01 April 2017
Shuttle Radar Topography Mission (SRTM) data ( Jarvis et al., 2008 ). Topography vertical exaggeration is 10:1. Station and shot elevations are along the crooked line. CJ Dike SwarmChief Joseph dike swarm; WISZ—western Idaho shear zone; OR—Oregon; ID—Idaho. The Proterozoic-Archean boundary shown
Journal Article
Journal: Geosphere
Published: 01 February 2016
Geosphere (2016) 12 (1): 58-113.
..., strongly suggesting a petrogenetic link. We propose that the HRCC and MVF caldera centers are localized where dikes of Steens flood basalt encountered transitional crust west of the craton with a composition and thickness that allowed significant partial melting, based on the O and Nd isotopic values...
FIGURES | View All (28)
Image
Regional overview map of southeast Oregon (northwestern United States) show...
in > Geosphere
Published: 20 December 2018
(2009) and demarcate relatively younger accreted terranes to the west and relatively older cratonic crust to the east. Inset shows map extent and schematic location of major CRBG dike swarms that erupted main-phase CRBG lavas as follows: S—Steens dike swarm; M—Monument dike swarm; CJ—Chief Joseph dike
Image
Figure 1. The map area lies in eastern Oregon, midway between the Harney Ba...
Published: 01 January 2003
basalt feeder dikes of the Chief Joseph dike swarm in the north and is overlain, in part, by Steens basalt and the basalt of Malheur Gorge in the south. Northwest-trending fault zones: OWL—Olympic-Wallowa Lineament; VFZ—Vale fault zone; BFZ—Brothers fault zone; EDFZ— Eugene-Denio fault zone; MFZ
Book Chapter

Author(s)
Davis A. Young
Series: GSA Special Papers
Published: 01 June 2015
DOI: 10.1130/2015.2512(001)
... matured into theoretical igneous petrology. Now the question to be addressed is whether Joseph Iddings was a petrologist of sufficient gravitas that either petrologists or historians of geology should care about his personal recollections into that era. Below I seek to demonstrate that the answer...
FIGURES | View All (9)
Journal Article
Published: 01 July 2000
Exploration and Mining Geology (2000) 9 (3-4): 189-214.
... are intruded by Early Proterozoic diabase dike swarms ( Halls et al., 1994 ). Most of the bedrock in the area, including the actual Selbaie deposits, is masked by a deep (up to 30 m), continuous cover of Pleistocene, glacial-derived overburden ( Veillette and McClenaghan, 1996 ). Polymetallic massive sulfide...
FIGURES | View All (18)
Image
Figure 7. Plume-induced delamination model for the Columbia River Basalt Gr...
in > Geosphere
Published: 01 June 2008
) As the plume spreads to the north, slab-like delamination predicted by the model allows the mobile plume head (PL) to rise into the lithospheric void, thus generating more enriched melts of Imnaha Basalt that erupt from incipient fissures in the Chief Joseph dike swarm. (C) The delaminated slab
Image
Magmatic features coincident with Basin and Range extension. Basement chara...
in > Geosphere
Published: 01 April 2015
stages of mid-Miocene plume emplacement and onset of Basin and Range extension at ca. 16.5 Ma. The area delineated for the Chief Joseph dike swarm includes only the main-phase dikes active from 16.6 to 15.6 Ma; later dikes in the swarm extend farther to the west, east, and north, feeding more sporadic