1-20 OF 202 RESULTS FOR

Bald Mountain batholith

Results shown limited to content with bounding coordinates.
Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Journal Article
Journal: Geosphere
Published: 01 December 2014
Geosphere (2014) 10 (6): 1456–1481.
.... The Bald Mountain batholith in northeastern Oregon (USA) is a classic example of a composite, incrementally constructed batholith that formed during terrane amalgamation outboard of the western U.S. Cordillera. Whole-rock geochemistry and zircon trace element, U-Pb, Lu-Hf, and O isotopic data reveal...
FIGURES | View All (16)
Journal Article
Journal: GSA Bulletin
Published: 01 February 1957
GSA Bulletin (1957) 68 (2): 181–238.
...W. H TAUBENECK Abstract The Bald Mountain batholith in the Elkhorn Mountains of northeastern Oregon has intrusive relations to a heterogeneous assortment of Permian sediments and a Triassic metagabbro-serpentine sequence. The batholith is a composite intrusive composed of at least eight distinct...
Image
Simplified geologic map of the <span class="search-highlight">Bald</span> <span class="search-highlight">Mountain</span> <span class="search-highlight">batholith</span> (after  Taubeneck, 1...
Published: 01 December 2014
Figure 3. Simplified geologic map of the Bald Mountain batholith (after Taubeneck, 1995 ). Locations of samples discussed in text are shown by white stars along with zircon 206 Pb/ 238 U ages, average initial εHf values, and range of δ 18 O (Zrn) values. Zircon isotopic data are summarized
Image
SUMMARY OF GEOCHEMICAL AND ISOTOPIC DATA FROM THE <span class="search-highlight">BALD</span> <span class="search-highlight">MOUNTAIN</span> <span class="search-highlight">BATHOLITH</span>, ...
Published: 01 December 2014
TABLE 1. SUMMARY OF GEOCHEMICAL AND ISOTOPIC DATA FROM THE BALD MOUNTAIN BATHOLITH, BLUE MOUNTAINS PROVINCE, NORTHEASTERN OREGON
Journal Article
Journal: GSA Bulletin
Published: 01 January 1961
GSA Bulletin (1961) 72 (1): 69–92.
... are bimodal. Comparisons with the Bald Mountain batholith, Oregon, demonstrate many similarities, as well as some striking contrasts. Compositional trends of tonalite to granodiorite are different for the two plutons. Zircons are the same throughout the Bald Mountain batholith. The writers conclude that both...
Series: GSA Special Papers
Published: 28 December 2018
DOI: 10.1130/2018.2540(10)
EISBN: 9780813795409
... the Bald Mountain Batholith, two sites from small intrusive bodies near Ritter, Oregon, and six sites from the Wallowa Batholith have well-defined magnetization components essentially identical to those found by previous workers. The combined mean direction of both sets of data from these Late Jurassic...
FIGURES | View All (8)
Journal Article
Journal: GSA Bulletin
Published: 01 November 1969
GSA Bulletin (1969) 80 (11): 2213–2236.
... the continuous and systematic range of composition of this calc-alkaline trend. An extensive range of composition is shown by CaO-K 2 O-Na 2 O and MgO-FeO(total iron)-alkali plots. Chemical trends closely parallel those of the Bald Mountain batholith, the Guadalupe Complex, the Southern California batholith...
Journal Article
Journal: GSA Bulletin
Published: 01 September 1960
GSA Bulletin (1960) 71 (9): 1295–1322.
...WILLIAM H TAUBENECK; ARIE POLDERVAART Abstract The Willow Lake intrusion is funnel-shaped with contacts inclined inward at 60°-70° and has a sheetlike appendage to the southwest, inclined northwest at 50°. The pluton lies athwart the southern contact of the Bald Mountain batholith and was emplaced...
Journal Article
Journal: Economic Geology
Published: 01 December 1957
Economic Geology (1957) 52 (8): 952–971.
... the stock. Results are compared with those obtained for the Bald Mountain batholith, Oregon, which has been emplaced at moderate depth.Three samples of tuff that originated from the site of the stock, and two samples from a related, nearby vent have zircons with reduced major axes like those of the zircons...
Image
Generalized terrane map of the Blue <span class="search-highlight">Mountains</span> Province (BMP), modified from...
Published: 01 December 2008
Figure 1 Generalized terrane map of the Blue Mountains Province (BMP), modified from Dickinson (1979) , Follo (1992) , Vallier (1995) , Gray and Oldow (2005) , Dorsey and LaMaskin (2007) , and Mann and Vallier (2007) . BC, Baker City; BMB, Bald Mountain batholith; H, Huntington; IB, Idaho
Image
Regional map of the Blue <span class="search-highlight">Mountains</span> Province, northeast Oregon and western I...
Published: 01 September 2011
are shown in white boxes. Inset map shows location of the Blue Mountains Province with respect to other Paleozoic–Mesozoic accreted terranes of the North American Cordillera. WB—Wallowa batholith; BMB—Bald Mountain batholith; BRS—Burnt River Schist.
Image
Regional geologic map of the Blue <span class="search-highlight">Mountains</span> Province, modified after  Dorse...
Published: 01 March 2012
Figure 1. Regional geologic map of the Blue Mountains Province, modified after Dorsey and LaMaskin (2007) , Dickinson (1979) , Mann and Vallier (2007) , Follo (1992) , Vallier (1995) , and Gray and Oldow (2005) . BC—Baker City; BMB—Bald Mountain Batholith; CMC—Canyon Mountain Complex; CM
Image
(A–F) Tera-Wasserburg diagrams and error-weighted average age plots for zir...
Published: 01 December 2014
Figure 5. (A–F) Tera-Wasserburg diagrams and error-weighted average age plots for zircons from plutonic rocks of the Bald Mountain batholith. Error ellipses and calculated ages are given at the 95% confidence level. MSWD—mean square of weighted deviates. Dashed error ellipses were excluded
Image
Representative cathodoluminescence images of zircons from the norite-granit...
Published: 01 December 2014
Figure 4. Representative cathodoluminescence images of zircons from the norite-granite and tonalite-granodiorite suites of the Bald Mountain batholith. Locations of ion microprobe and laser ablation spots are shown along with data from each spot. Analysis spots are color coded: white—U-Pb age
Image
Schematic models for the evolution of the Blue <span class="search-highlight">Mountains</span> province and the B...
Published: 01 December 2014
Figure 2. Schematic models for the evolution of the Blue Mountains province and the Bald Mountain batholith (after Schwartz et al., 2011b ). (A, B) Doubly vergent subduction resulted in low-Sr/Y magmatism in both the Olds Ferry and Wallowa island-arc systems. S.L.—sea level; N.A.—North America
Image
Selected major and trace element plots for plutonic rocks of the <span class="search-highlight">Bald</span> Mount...
Published: 01 December 2014
Figure 6. Selected major and trace element plots for plutonic rocks of the Bald Mountain batholith. (A) Fe-number versus SiO 2 illustrating the overall magnesian character of the batholith. (B) Modified alkali lime index (MALI). Mafic enclaves are calc-alkalic, whereas host rocks are calcic. (C
Image
Regional geologic map of the Blue <span class="search-highlight">Mountains</span> Province (BMP) modified after  ...
Published: 01 April 2017
Figure 1. Regional geologic map of the Blue Mountains Province (BMP) modified after Dorsey and LaMaskin (2007) , Dickinson (1979) , Mann (1988) , Follo (1992) , Vallier (1995) , and Gray and Oldow (2005) . BC—Baker City; BMB—Bald Mountain batholith; CA—Cambridge; CCC—Cougar Creek complex
Image
(A–G) Chondrite-normalized rare earth element (REE) abundance diagrams for ...
Published: 01 December 2014
Figure 8. (A–G) Chondrite-normalized rare earth element (REE) abundance diagrams for zircons from the Bald Mountain batholith. Samples are normalized to chondrite values of Sun and McDonough (1989) . Two zircons in B display anomalously high La values and flat light REE patterns, suggesting
Image
Geologic map of the Blue <span class="search-highlight">Mountains</span> province, modified from sources listed i...
Published: 29 May 2015
are here considered subterrane-level units of the Baker terrane. BMB = Bald Mountain batholith; BRS = Burnt River schist; MS = megasequence (after Dorsey and LaMaskin 2007 ); PCF = Poison Creek fault; WB = Wallowa batholith.
Image
Simplified geologic map of western Washington. The inset map shows the west...
Published: 17 October 2018
and Cascade arc. The “Eocene belt” roughly parallels the inferred Siletzia margin in the subsurface ( Trehu et al., 1994 ) and includes the Basalt of Summit Creek (BSC), the Basalt of Frost Mountain (FM), the Teanaway Basalt (TB), the Naches Formation (NF), the Mount Pilchuck Stock and Bald Mountain Batholith