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Strawberry Volcanics

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Series: GSA Special Papers
Published: 07 February 2019
DOI: 10.1130/2018.2538(03)
EISBN: 9780813795386
... ABSTRACT The mid-Miocene Strawberry volcanic field of northeastern Oregon is an example of intracontinental flood volcanism that produced lavas of both tholeiitic and calcalkaline compositions derived by open-system processes. Until now, these dominantly calc-alkaline lavas have not been...
FIGURES | View All (14)
Series: Geological Society, London, Special Publications
Published: 01 January 2013
DOI: 10.1144/SP385.12
EISBN: 9781862396494
... Abstract The widely distributed, mid-Miocene lavas of the Strawberry Volcanics of NE Oregon are compositionally diverse, ranging from basalt to rhyolite. They are composed mainly of calc-alkaline and mildly tholeiitic basaltic andesite and andesite. Ar–Ar dating and stratigraphic relationships...
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Series: GSA Field Guide
Published: 24 September 2021
DOI: 10.1130/2021.0062(08)
EISBN: 9780813756622
... to the Strawberry Volcanics. Subsequent stops on Day 2 examine key outcrops demonstrating the intercalated nature of Middle Miocene tholeiitic CRBG flood basalts, temporally coeval prominent ash-flow tuffs, and “Snake River–type” large-volume rhyolite lava flows cropping out along the Malheur River. The Day 3...
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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...
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Late Eocene (40 Ma) to recent age correlations for extension and magmatism ...
Published: 01 April 2015
). Not included in this figure is volcanism associated with the Lake Owyhee, Powder River, and Strawberry volcanic fields ( Fig. 1 ; Ferns and McClaughry, 2013 ). These middle Miocene to Pliocene volcanic rocks are largely calc-alkaline and typically overlie the Columbia River flood basalt stratigraphy
Journal Article
Journal: GSA Bulletin
Published: 01 February 1973
GSA Bulletin (1973) 84 (2): 489–498.
...T. P. THAYER; C. ERVIN BROWN Abstract Note: This paper is dedicated to Aaron and Elizabeth Waters on the occasion of Dr. Waters' retirement. Ironside Mountain is a 6- by 10-km block of folded rhyolite, andesite, and basalt flows of the Strawberry Volcanics bounded by a horse-shoe-shaped reverse...
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Trace element bivariate plots of mafic lava samples from this study are plo...
Published: 09 February 2022
Ronde Basalt; SV—Strawberry Volcanics; HC—Hunter Creek Basalt; TP—Tim's Peak Basalt. Samples from this study: RB—Ring Butte trachy-basalt; LM—Little Malheur River andesite; CR—Castle Rock lava flows (pre-DIT1); A—aphyric lava flows (post-DIT1); YB—young porphyritic basalt (post-DIT4); DIT—Dinner Creek
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Major element bivariate plots of mafic lava samples from this study are plo...
Published: 09 February 2022
—Picture Gorge Basalt; GR—Grande Ronde Basalt; SV—Strawberry Volcanics; HC—Hunter Creek Basalt; TP—Tim's Peak Basalt. Samples from this study: RB—Ring Butte trachy-basalt; LM—Little Malheur River andesite; CR—Castle Rock lava flows (pre-DIT1); A—aphyric lava flows (post-DIT1); YB—young porphyritic basalt
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Mantle normalization plots and chondrite-normalized rare earth element plot...
Published: 09 February 2022
of the Strawberry Volcanics (SV); and late Oligocene–early Miocene basalt/andesite lavas from the Calamity Butte quadrangle (CB). Graphs from top to bottom: pre-DIT1 tholeiitic lavas at Castle Rock, post-DIT1 aphyric basaltic-andesite lavas, post-DIT1 aphyric icelandite, and post-DIT4 porphyritic basalt. Data
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The Basin and Range Province, with northern, central, and southern segments...
Published: 01 April 2015
extends to the northeast, south of the Snake River Plain. Coeval extension north of the Snake River Plain is sometimes referred to as the Rocky Mountain Basin and Range ( Sonder and Jones, 1999 ). Middle Miocene to Pliocene volcanic fields lying north of the northern Basin and Range include the Strawberry
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(A) Map of eastern Oregon shows outcrops of sedimentary and metamorphic Pal...
Published: 09 February 2022
River Basalt Group (CRBG) lava flows and source dikes (SMDS—Steens Mountain Dike Swarm; CJDS—Chief Joseph Dike Swarm; MDS—Monument Dike Swarm), the silicic Lake Owyhee Volcanic Field (blue dashed line labeled LOVF), the Dinner Creek Tuff Eruptive Center (red dashed oval labeled DITEC), the Strawberry
Journal Article
Journal: GSA Bulletin
Published: 09 February 2022
GSA Bulletin (2022) 134 (9-10): 2415–2435.
... Ronde Basalt; SV—Strawberry Volcanics; HC—Hunter Creek Basalt; TP—Tim's Peak Basalt. Samples from this study: RB—Ring Butte trachy-basalt; LM—Little Malheur River andesite; CR—Castle Rock lava flows (pre-DIT1); A—aphyric lava flows (post-DIT1); YB—young porphyritic basalt (post-DIT4); DIT—Dinner Creek...
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Journal Article
Published: 01 May 2007
Journal of Paleontology (2007) 81 (3): 568–580.
... . Two leaves of Quercus simulata recovered from the Miocene Strawberry Volcanics in the Blue Mountains region ( Fig. 1 ) of Oregon each show a new type of gall. The leaves and galls are preserved as adpressions and are described here as new species of the form genus Antronoides . Antronoides...
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Magmatic features coincident with Basin and Range extension. Basement chara...
Published: 01 April 2015
are between 16.3 and 15.6 Ma ( Hasten et al., 2011 ). The other is a K/Ar age of 17.3 Ma for a rhyolite lava flow at the base of the Strawberry Volcanics ( Fig. 1 ; Robyn, 1977 ; Steiner and Streck, 2013 ). The rhyolite at Castle Rock, Oregon (CR), is the presumed source region for the 15.9–15.4-Ma Dinner
Journal Article
Journal: AAPG Bulletin
Published: 01 April 1952
AAPG Bulletin (1952) 36 (4): 575–634.
... beneath a Tertiary volcanic cover. The Woodside and Thaynes formations are rather lithologically similar in both the Duchesne River and North Strawberry River areas. The upper part of the Ankareh shale in the eastern area is disconformably overlain by the Shinarump conglomerate (equivalent in part...
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Journal Article
Journal: AAPG Bulletin
Published: 01 April 1956
AAPG Bulletin (1956) 40 (4): 790–791.
... Plateau and the Rocky Mountains, by (1) containing extreme thicknesses of sedimentary and volcanic rocks and by (2) having experienced true orogeny. Like its counterpart, the Appalachian geosyncline, it has dual facies expression. An inner (cratonward or miogeosynclinal) belt has thick sediments...
Journal Article
Published: 22 December 2021
Canadian Journal of Earth Sciences (2022) 59 (6): 371–388.
... metabasaltic rocks and associated basinal metasedimentary rocks. The Partridge Breast Lake assemblage is dominated by continental-arc volcanic and volcaniclastic rocks associated with basinal metasedimentary rocks. The Strawberry Island assemblage, consisting of arenite and polymictic conglomerate...
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Journal Article
Journal: GSA Bulletin
Published: 01 November 2003
GSA Bulletin (2003) 115 (11): 1377–1387.
... calderas in the Cascades ( Fig. 1 ) related to the Cascadia subduction zone, or early eruptions from the Strawberry Volcanic Field ( Fig. 1 ). Current and likely former orientations of the jet-stream make a Cascades or Strawberry Volcanic Field origin most likely. The Skaw pedotype is parented by a felsic...
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Journal Article
Journal: Lithosphere
Publisher: GSW
Published: 01 October 2010
Lithosphere (2010) 2 (5): 341–360.
... metavolcanic samples at the Strawberry Mine pendant yielded mid-Cretaceous zircon age distributions similar to the Cinko Lake volcanic rocks ( Table 1 , section D; Fig. 12 ). The likely extrusion age for these metavolcanic rocks is 96–100 Ma and thus coeval with the crystallization age of the adjacent Jackass...
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Series: DNAG, Centennial Field Guides
Published: 01 January 1987
DOI: 10.1130/0-8137-5402-X.393
EISBN: 9780813754086
... Abstract Sunset Crater, about 15 mi (25 km) north of Flagstaff, Arizona (Fig. 1), is in the eastern part of the San Francisco volcanic field, on the southern margin of the Colorado Plateau. Access to the Sunset Crater National Monument is by Forest Road 545, an all-weather road off of U.S. 89...