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Mount Abbot Quadrangle

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Journal Article
Journal: GSA Bulletin
Published: 01 September 1988
GSA Bulletin (1988) 100 (9): 1451–1465.
...STEPHEN J. MARTEL; DAVID D. POLLARD; PAUL SEGALL Abstract Simple strike-slip fault zones mark the third stage of faulting in granitic plutons in the Mount Abbot quadrangle of the Sierra Nevada of California. Deformation began with the opening of nearly vertical subparallel joints. These joints were...
Journal Article
Journal: Geology
Published: 01 December 1990
Geology (1990) 18 (12): 1248–1251.
... in the Mount Abbot quadrangle of the central Sierra Nevada, the host granodiorite is hydrothermally altered to a lower greenschist assemblage that contains muscovite. The muscovite yields a mean K-Ar and 40 Ar/ 39 Ar age of 79 Ma, which provides a minimum age for the faulting. Field relations show...
Image
(a) Location and detailed fault maps of the study areas in (b) <b>Mount</b> <b>Abbot</b> ...
Published: 01 February 2009
Figure 1. (a) Location and detailed fault maps of the study areas in (b) Mount Abbot quadrangle and (c) Kings Canyon National Park. Stars are pseudotachylytes analyzed with microscope and SEM ; circles are pseudotachylytes identified from field observations alone. Labeled faults in the Mount
Series: GSA Special Papers
Published: 01 January 2007
DOI: 10.1130/2007.2431(07)
... quadrangle and a third from Taylor Mountains quadrangle. All three are interpreted to represent a low stratigraphic level in the Nixon Fork platform succession; the samples from Ruby quadrangle are probably late Neoproterozoic, and the sample from Taylor Mountains quadrangle is probably Cambrian in age...
Journal Article
Journal: Geosphere
Published: 01 August 2015
Geosphere (2015) 11 (4): 1133–1157.
...Roger Putnam; Allen F. Glazner; Drew S. Coleman; Andrew R.C. Kylander-Clark; Tamlin Pavelsky; Miquela I. Abbot Abstract Detailed geologic mapping on the ∼1-km-tall, vertical southeast face of El Capitan was completed to determine the chronology and geometry of emplacement. Field relations reveal...
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Journal Article
Journal: Economic Geology
Published: 01 April 2003
Economic Geology (2003) 98 (2): 287–316.
... plate during late Paleozoic thrusting that thickens the cover above mineralized rock in the lower plate. A compilation of previously published chemical analyses of 440 stream sediment samples and 115 rocks from two 7½-minute quadrangles, as well as new chemical analyses of approximately 1,000 drill core...
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Journal Article
Journal: GSA Bulletin
Published: 01 January 2000
GSA Bulletin (2000) 112 (1): 119–135.
...Brendan A. McNulty; Othmar T. Tobisch; Alexander R. Cruden; Stuart Gilder Abstract The ca. 90 Ma Mount Givens pluton is one of the largest granodioritic to granitic intrusions in the Sierra Nevada batholith of California. Emplacement of the pluton occurred during a critical time in the tectonic...
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Series: GSA Field Guide
Published: 01 January 2013
DOI: 10.1130/2013.0033(02)
EISBN: 9780813756332
... and ~40 km (25 mi) southeast of Poncha Pass. In the West Elk Mountains near Crested Butte is Mount Emmons (3777 m; 12,392 ft), named for CSS Founder and 1901 Trip Leader Samuel Emmons. John Wesley Powell has one mountain in Colorado named for him—Powell Peak (4025 m; 13,208 ft) in Rocky Mountain...
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Series: GSA Field Guide
Published: 01 January 2013
DOI: 10.1130/2013.0033(14)
EISBN: 9780813756332
... north of the 38th parallel. Renewed regional work in mid-century focused on mapping the Durango 2° quadrangle at a scale of 1:250,000 ( Steven et al., 1974 ), which documented presence of widespread ignimbrite sheets and their source calderas in the San Juan Mountains ( Steven and Lipman, 1976...
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Series: Guidebook
Published: 01 January 1996
DOI: 10.32375/1996-GB73.10
EISBN: 9781732014848
... and paleontologic investigation. Most of the present stratigraphic nomenclature is derived from his map of the La Jolla 15’ quadrangle. Kennedy and Moore (1971) refined much of this early work, and described the complex lithostrat-igraphic relationships based on detailed 7.5’ quadrangle mapping and extensive...
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Journal Article
Journal: Geosphere
Published: 01 June 2008
Geosphere (2008) 4 (3): 496–519.
... grains, both standards and unknowns, were mounted in a 1-inch-diameter epoxy puck that was ground and polished to expose the interiors of the grains. Cathodoluminescence images acquired at the University of Idaho were used as base maps for recording laser spot locations and to reveal growth...
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Series: GSA Field Guide
Published: 01 January 2004
DOI: 10.1130/0-8137-0005-1.185
EISBN: 9780813756059
... Table 1. Generalized Stratigraphic Section for the Colorado Piedmont, Morrison Quadrangle (Modified from Scott, 1972) Section and description Thickness ft (m) Green Mountain Conglomerate (Paleocene)—Tgm 650 (198) Conglomerate, sandstone, and shale. Contains...
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Journal Article
Journal: AAPG Bulletin
Published: 01 July 1981
AAPG Bulletin (1981) 65 (7): 1256–1284.
... across the low-relief erosional surface ( Minch, 1979 ). The Cretaceous turbidites are overlain with low-angle unconformity by lower Eocene basal transgressive conglomerate of the Mount Soledad Formation of the La Jolla Group ( Fig. 2 ; Kennedy and Moore, 1971 a; Kennedy, 1975 ). The sub-La Jolla...
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Series: GSA Field Guide
Published: 01 January 2013
DOI: 10.1130/2013.0033(07)
EISBN: 9780813756332
... is common but not pervasive in biotite gneisses of the Wet Mountains, which suggests variable peak metamorphic conditions across the range. Notably, the lack of orthopyroxene + K-feldspar at this locality suggests upper-amphibolite-facies metamorphic conditions, whereas rocks of the Mount Tyndall quadrangle...
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Journal Article
Journal: Geosphere
Published: 01 June 2015
Geosphere (2015) 11 (3): 638–659.
FIGURES | View All (19)
Series: GSA Field Guide
Published: 01 January 2013
DOI: 10.1130/2013.0033(13)
EISBN: 9780813756332
... by size of the dispersed grains and pebbles, or the matrix sand, exists, it must be over a thickness of meters to decimeters, a possibility that is being explored with ongoing research. The planar structures (pseudobedding) are recorded as bedding attitudes on two quadrangle maps ( Keller et al., 2005...
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Series: GSA Field Guide
Published: 01 January 2013
DOI: 10.1130/2013.0033(12)
EISBN: 9780813756332
FIGURES | View All (23)
Journal Article
Published: 01 July 2019
Petroleum Geoscience (2019) 25 (4): 415–428.
... , S.J. 1990 . Formation of compound strike-slip fault zones, Mount Abbot quadrangle, California . Journal of Structural Geology , 12 , 869 – 882 , https://doi.org/10.1016/0191-8141(90)90060-C Mazurek , M. , Jakob , A. & Bossart , P. 2003 . Solute transport in crystalline...
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Journal Article
Published: 01 February 2009
Bulletin of the Seismological Society of America (2009) 99 (1): 382–388.
...Figure 1. (a) Location and detailed fault maps of the study areas in (b) Mount Abbot quadrangle and (c) Kings Canyon National Park. Stars are pseudotachylytes analyzed with microscope and SEM ; circles are pseudotachylytes identified from field observations alone. Labeled faults in the Mount...
FIGURES | View All (4)
Journal Article
Journal: GSA Bulletin
Published: 01 July 2003
GSA Bulletin (2003) 115 (7): 817–831.
... Creek kink band that is evident in the southwest part of the Mount Abbot 15′ quadrangle ( Fig. 1B ) is not well represented in the data, a fact that may be due to the limited exposure of the western half of the Mount Hilgard 7.5′ quadrangle ( Fig. 3 ). The change in orientation of the lineaments...
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