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Henrys Fork Caldera

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Yellowstone Plateau, showing the positions of major <span class="search-highlight">calderas</span>: 1. Big Bend c...
Published: 02 January 2003
Figure 22. Yellowstone Plateau, showing the positions of major calderas: 1. Big Bend caldera, Huckleberry Ridge Tuff, 2.0 Ma, 2500 km 3 ; 2. Henry Forks caldera, Mesa Falls Tuff, 1.3 Ma, 300 km 3 ; 3. Yellowstone caldera, Lava Creek Tuff, 0.6 Ma, 1000 km 3 . For sources of mapping, see
Journal Article
Journal: Geology
Published: 26 March 2024
Geology (2024)
... using the Beer-Lambert law and a representative rhyolite density of 2300 g L 1. We used a molar absorption coefficient of 1214 Figure 1. (A) Thickness and extent of Mesa Falls ignimbrite and its source, Henrys Fork caldera (dashed), with isopachs in meters after Christiansen (2001). (B) First...
Journal Article
Journal: Geosphere
Published: 01 December 2014
Geosphere (2014) 10 (6): 1432–1455.
... of ancient landscapes. The Middle Fork caldera encompasses a 10 km × 20 km area of rhyolite welded tuff and granite porphyry in east-central Alaska, ∼100 km west of the Yukon border. Intracaldera tuff is at least 850 m thick. The K-feldspar megacrystic granite porphyry is exposed over much of a 7 km × 12 km...
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Journal Article
Journal: Geology
Published: 07 December 2018
Geology (2019) 47 (1): 63–66.
... showing geometry of northern La Garita caldera, Colorado, USA. Green line is axis of moat paleovalley between northern wall and resurgent block. Red box shows location of Figure 2 . Figure 2. Geologic map of northeast Sheep Mountain and slopes adjacent to South Fork Saguache Creek, within La...
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Journal Article
Journal: Geosphere
Published: 16 July 2019
Geosphere (2019) 15 (5): 1577–1597.
... (2017) National Map. Abbreviations: CCF—Copper Creek fault; MFF—Meadow Fork fault. Volcanism migrated to the southwest across a >200 km transect of northeastern Nevada from ca. 44 Ma to ca. 38 Ma ( Henry and John, 2013 ) and across a >110 km transect of central Nevada during the ca. 36–18...
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Journal Article
Journal: Geosphere
Published: 01 August 2013
Geosphere (2013) 9 (4): 736–780.
... occurred in the past decade. (1) The Sierra Nevada paleochannels have been shown to be the lower reaches of fluvial systems, the heads of which were far to the east in central Nevada, where the caldera sources for Oligocene–Early Miocene ignimbrites within the paleochannels lie ( Henry, 2008 ; Henry et al...
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Journal Article
Journal: Geosphere
Published: 01 April 2013
Geosphere (2013) 9 (2): 191–215.
... et al., 1981 ; Saucedo and Wagner, 1992 ; Henry and Faulds, 2010 ). These apparently erupted from calderas 200–400 km (present-day distance) east of the present Sierran crest and filled the same west-flowing drainages previously filled by the Eocene gravels ( Henry and Faulds, 2010...
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Journal Article
Published: 27 January 2016
Canadian Journal of Earth Sciences (2016) 53 (3): 260–280.
... ) ( O’Neill et al. 2010 ) to the northwest and the Mount Harper fault to the southeast ( Fig. 3 ). Mid-Cretaceous plutonic rocks make up the majority of the block. The Middle Fork block includes the ∼70 Ma Middle Fork caldera, a 10 km × 20 km area of rhyolitic welded tuff and granite porphyry ( Bacon et al...
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Journal Article
Journal: Geosphere
Published: 01 February 2008
Geosphere (2008) 4 (1): 1–35.
... or more calderas near Tuscarora ( Figs. 1 and 2 ; Henry et al., 1999 ), but the total number of tuffs and, with few exceptions, the location of their source calderas are uncertain. The early phase of Cenozoic magmatism in northeastern Nevada ended by ca. 35 Ma, and, with the exception of 29 Ma sills...
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Journal Article
Journal: Geosphere
Published: 01 October 2013
Geosphere (2013) 9 (5): 1125–1146.
... erupted from calderas in central Nevada and flowed westward down paleochannels that cross the present-day Sierra Nevada and terminate in the Sacramento Valley of central California ( Garside et al., 2005 ; Henry, 2008 ; Henry et al., 2012 ). Slemmons (1953) was the first to recognize that valleys were...
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Series: GSA Field Guide
Published: 01 January 2008
DOI: 10.1130/2007.fld010(03)
EISBN: 9780813756103
... (43.53328 N,111.70110 W) Day 2 Stop 8. Overlook of Juniper Buttes Resurgent Dome(43.88375 N, 111.75237 W) Stop 9. Inside the Henrys Fork Caldera, the Second-Cycle Caldera of the Yellowstone Plateau Volcanic Field (44.3311 N, 111.44117 W) Stop 10. Centennial Fault in Henry’s Lake State Park...
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Journal Article
Journal: GSA Bulletin
Published: 01 May 2015
GSA Bulletin (2015) 127 (5-6): 688–701.
... infiltration on the Snake River Plain would improve our understanding of the Martian hydrologic system. The earliest known flood on the Snake River Plain occurred along the Henry’s Fork River, which drains west Yellowstone, the Tetons, and Island Park caldera, before joining the Snake River near...
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Journal Article
Journal: Geosphere
Published: 01 February 2016
Geosphere (2016) 12 (1): 135–175.
... that they were erupted locally. It was later shown that Oligocene to earliest Miocene ignimbrites in the Sierra Nevada are restricted to paleochannels, and were erupted far to the east from calderas in Nevada, in a subduction setting on thick continental crust of the Nevadaplano (cf. Henry et al., 2012 ; Henry...
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Journal Article
Published: 23 May 2018
Environmental & Engineering Geoscience (2018) 24 (2): 165–185.
... Springs, including the San Joaquin River South Fork. Figures 2 and 3 are within the outlined area. Among the features shown are Long Valley Caldera (LVC), San Joaquin River (SJR), and Casa Diablo Geothermal Area (CD). Identified thermal springs include Keough Hot Spring (KHS), Red's Meadow Hot Spring...
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Journal Article
Journal: Geosphere
Published: 01 February 2012
Geosphere (2012) 8 (1): 1–27.
... of Campbell Creek in paleovalleys make estimates of outflow tuff especially difficult. We find that total erupted volume is best approximated from the volume of caldera collapse where it is known ( John et al., 2008a ; Henry and Faulds, 2010 ). Assuming 2–5 km of collapse, which is representative of calderas...
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Journal Article
Journal: GSA Bulletin
Published: 09 February 2022
GSA Bulletin (2022) 134 (9-10): 2415–2435.
... with the High Rock and McDermitt caldera complexes in northern Nevada and southeastern Oregon, respectively, and migrating northwards to the Lake Owyhee Volcanic Field ( Marcy, 2014 ; Streck et al., 2015 ; Coble and Mahood, 2012 ; Benson and Mahood, 2016 ; Benson et al., 2017 ; Henry et al., 2017...
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Journal Article
Journal: Geosphere
Published: 22 December 2022
Geosphere (2023) 19 (1): 258–290.
.../10.1130/GES00122.1 . Henry , C.D. , and John , D.A. , 2013 , Magmatism, ash-flow tuffs, and calderas of the ignimbrite flareup in the western Nevada volcanic field, Great Basin, USA : Geosphere , v. 9 , p. 951 – 1008 , https://doi.org/10.1130/GES00867.1 . Henry , C.D. , Hinz...
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Journal Article
Journal: GSA Bulletin
Published: 02 July 2021
GSA Bulletin (2022) 134 (3-4): 885–894.
... topography of the watershed since the deposition of the latite would have required at least ∼1000 m of downcutting over the past 10.4 Ma. However, just 60 km to the north of the Stanislaus River, auriferous gravels found near the bottom of the South Fork American River attest to only ∼160 m of incision since...
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Journal Article
Journal: GSA Bulletin
Published: 28 February 2022
GSA Bulletin (2022) 134 (11-12): 2809–2853.
... and have source calderas in central Nevada demonstrates that paleorivers extended ~100 km farther east than modern rivers to drain the western portion of the Nevadaplano ( Cassel et al., 2009a ; Henry, 2008 ; Henry et al., 2012 ; Henry and Faulds, 2010 ). Beheading of the major Eocene-Oligocene...
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Journal Article
Journal: Geosphere
Published: 01 April 2012
Geosphere (2012) 8 (2): 229–249.
... to Nevada using trace and rare earth element geochemical analyses of volcanic glass and 40 Ar/ 39 Ar ages, show that ignimbrites traveled over 200 km from their source calderas across what is now the crest of the Sierra Nevada ( Cassel et al., 2009a ; Henry and Faulds, 2010 ). Hydrated volcanic glass...
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