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Berthoud Orogeny

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Journal Article
Published: 01 January 2003
Rocky Mountain Geology (2003) 38 (2): 183–204.
... piecemeal assembly of various ocean-arc terranes; and (2) a younger, Mesoproterozoic intra-continental orogeny, named the Berthoud orogeny, which involved associated regional heating and A-type plutonism chiefly during the interval 1.45–1.40 Ga. The term “Colorado orogeny” is proposed for the regional...
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Journal Article
Journal: Geosphere
Published: 01 December 2015
Geosphere (2015) 11 (6): 1975–1995.
...Calvin A. Mako; Michael L. Williams; Karl E. Karlstrom; Michael F. Doe; David Powicki; Mark E. Holland; George Gehrels; Mark Pecha Abstract For more than 25 yr, the Mazatzal orogeny has been a central component of virtually all tectonic models involving the Proterozoic rocks of the southwestern...
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Series: GSA Field Guide
Published: 01 January 2004
DOI: 10.1130/0-8137-0005-1.207
EISBN: 9780813756059
... Berthoud Pass–Vasquez Pass structural zone, a major Laramide-reactivated Precambrian shear/fault zone. A peripheral, 7.5 × 12.0 km, NNE-elongated, elliptical, pervasive chlorite alteration zone contains a well-developed system of radial quartz and base-precious metal veins. The Urad-Henderson porphyry...
FIGURES
Image
Generalized geologic map of part of the central Front Range, Colorado. Modi...
Published: 01 January 2003
Figure 4. Generalized geologic map of part of the central Front Range, Colorado. Modified from Gable and Sims (1969 , fig. 2). Proposed type area for Boulder Creek event of Colorado orogeny. Also type region for the Berthoud orogeny.
Journal Article
Journal: AAPG Bulletin
Published: 01 April 1986
AAPG Bulletin (1986) 70 (4): 351–359.
...I. S. Merin; W. R. Moore ABSTRACT The Niobrara Formation produces oil from fractures in several places in the Denver basin. The Niobrara is an oil-prone, mature source rock that entered the oil-generating window during the Laramide orogeny. The Laramide orogeny began with maximum compressive stress...
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Journal Article
Published: 01 January 2006
Rocky Mountain Geology (2006) 41 (2): 79–116.
... tectonic grain that was developed regionally during the culmination of the Yavapai orogeny is not recognized locally. Post-orogenic granitoid plutons were emplaced at 1695±2 Ma and 1682±3 Ma, broadly coeval with deposition of locally derived quartzite at the surface. Magmatism and sedimentation during...
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Series: GSA Field Guide
Published: 01 January 2013
DOI: 10.1130/2013.0033(04)
EISBN: 9780813756332
... Abstract The Paleogene sedimentary deposits of the Colorado Headwaters Basin provide a detailed proxy record of regional deformation and basin subsidence during the Laramide orogeny in north-central Colorado and southern Wyoming. This field trip presents extensive evidence from...
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Aeromagnetic map of Colorado. The prominent northeast-trending negative ano...
Published: 01 January 2003
Figure 5. Aeromagnetic map of Colorado. The prominent northeast-trending negative anomalies, particularly conspicuous in northern Colorado, overlie northeast-striking ductile shear zones formed during the Berthoud orogeny. The northwest-and north-northwest-trending negative anomalies, in central
Journal Article
Published: 01 January 2000
Rocky Mountain Geology (2000) 35 (1): 31–50.
...., Penokean orogeny) is not found in the Green Mountain magmatic arc. The youngest 207 Pb/ 206 Pb ages of ∼1610 Ma are interpreted to represent a time of new zircon growth during highly localized high-grade metamorphism—an event that also produced local granitic magmatism at ∼1625 Ma. The Boulder Creek...
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Journal Article
Published: 01 January 2005
Rocky Mountain Geology (2005) 40 (2): 115–155.
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Journal Article
Published: 01 February 2013
Geochemistry: Exploration, Environment, Analysis (2013) 13 (1): 41–51.
..., at 1620 to 1590 Ma, which perhaps triggered up-flow of reduced fluids on faults to precipitate U from the oxidized basinal waters. A major perturbation at 1525 Ma is correlated with the Mazatzal Orogeny and another at 1400 Ma correlates with the Berthoud Orogeny, both in the southwest US. Another, at c...
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Series: GSA Field Guide
Published: 01 January 2010
DOI: 10.1130/2010.0018(03)
EISBN: 9780813756189
..., 2009, personal commun.) is representative of the alkalic-mafic igneous suite of magmas intruded during the onset of the Laramide orogeny. Sedimentary basins on the west side of the Front Range were investigated by Beekly (1915) for coal resources. He defined the Coalmont Formation in North Park...
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Series: GSA Field Guide
Published: 01 January 2013
DOI: 10.1130/2013.0033(06)
EISBN: 9780813756332
... ; Chamberlain et al., 2003 ). The timing of this continent-oceanic arc collision, termed the Medicine Bow Orogeny, is constrained to between ~1.78 and ~1.75 Ga ( Chamberlain, 1998 ). The accreting terrane is commonly referred to as the Green Mountain arc, an ~1.78 Ga suite of mafic and felsic igneous...
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Series: GSA Field Guide
Published: 01 January 2004
DOI: 10.1130/0-8137-0005-1.89
EISBN: 9780813756059
... during late Neogene erosion. As used here, the Laramide orogeny describes the tectonic events that occurred between ca. 70 Ma and 45 Ma (Late Cretaceous to middle Eocene), although most of the present topography is due to post-Laramide regional uplift and erosion. At the first stop (Fig. 1 ), we...
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Journal Article
Journal: Economic Geology
Published: 01 March 2010
Economic Geology (2010) 105 (2): 303–324.
...-hosted deposits and correspond to fluid circulation in the Athabasca basin induced by far-field tectonic events ( Alexandre et al, 2009 ). The 1356 ± 7 Ma 40 Ar/ 39 Ar date is interpreted to reflect a fluid resetting event in the Ar system during the Berthoud orogeny in southwest United States ( Nyman...
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Series: GSA Special Papers
Published: 01 January 2006
DOI: 10.1130/2006.2398(25)
...-tectonic history of the Laramide ranges to be characterized largely by topographic decay. Low-temperature geochronology reveals that no more than a few kilometers of erosion have occurred within the crystalline cores of the ranges since the Laramide orogeny or shortly thereafter; apatite fission-track ages...
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Journal Article
Journal: Lithosphere
Publisher: GSW
Published: 01 April 2010
Lithosphere (2010) 2 (2): 119–135.
... and DePaolo, 1987 ) and were accreted to southern Laurentia during the Mazatzal orogeny ca. 1.66–1.60 Ga ( Silver, 1965 ; Karlstrom and Bowring, 1988 ; Amato et al., 2008 ). Deformation related to the Mazatzal orogeny propagated northward into the southern part of the Yavapai Province (Transition Zone, Fig...
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Series: GSA Field Guide
Published: 01 January 2013
DOI: 10.1130/2013.0033(13)
EISBN: 9780813756332
... ), and they provide key records of the Pennsylvanian Ancestral Rocky Mountains orogeny ( Suttner et al., 1984 ; Sweet and Soreghan, 2010 ) and Cretaceous-Tertiary Laramide orogeny ( Kluth and Nelson, 1988 ; Raynolds, 2002 ). Existing field guides that review the geology and tectonic evolution of the region include...
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Journal Article
Journal: AAPG Bulletin
Published: 12 May 2021
AAPG Bulletin (2021) 105 (5): 945–985.
... to reservoir preservation, could be applied to the Sichuan Basin. Gas retention has likely been compromised by the long time that has elapsed since the shale reservoirs were charged up to the Early Cretaceous ( Tan et al., 2013 ) and by the uplifts and orogenies that have occurred subsequently ( Potter, 2018...
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Journal Article
Journal: AAPG Bulletin
Published: 01 January 2003
AAPG Bulletin (2003) 87 (1): 15–37.
... generation at 65 Ma, following the onset of the Laramide orogeny at about 67 Ma. Increased burial temperatures are associated with deposition of as much as 1900 m (6400 ft) of Upper Cretaceous Pierre shales. Gas generation from source rocks and precursor oil probably started at 40 to 20 Ma during a time...
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