The Cordilleran orogenic belt between Nevada and Chihuahua

Drewes, Harald

doi:10.1130/0016-7606(1978)89<641:tcobbn>2.0.co;2

Cited by 56 publications

(40 citation statements)

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“…Anderson, 1974), Early Cretaceous rifting (Bilodeau, 1982), and Laramide compression (Drewes, 1978;Davis, 1979). Many of the geologic complexities that resulted from these tectonic and magmatic events are illustrated in figures 4 and 5.…”

Section: Basin and Range Physiographic Provincementioning

confidence: 99%

“…The 7,000 to 7,500 feet of Paleozoic rocks (Peirce and others, 1970) and the 1,500 to 1,800 feet of lower Mesozoic rocks (Stewart and others 1972) deposited in north westernmost· Arizona ap~ pear to represent the only hingeline or nearhingeline deposits in the State. The leading edge of the Cordilleran fold and thrust belt as defined by Drewes (1978Drewes ( , 1980Drewes ( , 1981 is shown in figure 1A.…”

Section: Basin and Range Physiographic Provincementioning

confidence: 99%

“…Many of the geologic complexities that resulted from these tectonic and magmatic events are illustrated in figures 4 and 5. Drewes (1978Drewes ( , 1980Drewes ( , 1981 believes that many of the thrust faults and folds in southeast Arizona represent a structural link between the Cordilleran fold and thrust belt of southern Nevada and southeast California and the Chihuahua fold and thru_st belt of northern Mexico. Hamilton (1978), Davis (1979), andMatthews (1982) disagree with such a linkage on the grounds that neither the stratigraphic facies.…”

Section: Basin and Range Physiographic Provincementioning

confidence: 99%

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Petroleum potential of wilderness lands in Arizona

Ryder¹

1983

Circular

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Section: Basin and Range Physiographic Provincementioning

confidence: 99%

Section: Basin and Range Physiographic Provincementioning

confidence: 99%

Section: Basin and Range Physiographic Provincementioning

confidence: 99%

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Petroleum potential of wilderness lands in Arizona

Ryder¹

1983

Circular

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“…Because thrust faulting in the retroarc Cordilleran fold-and-thrust belt ended by Early Tertiary time, major low-angle faults now recognized as Tertiary extensional detachments in the Basin and Range were initially interpreted as either Mesozoic thrusts (e.g. Thorman 1970;Drewes 1978) or alternatively as gravity slides of Mesozoic (Hose & Danes 1973) or Tertiary age (e.g. Compton et al 1977).…”

Section: Impact Of the 1977 Penrose Conference Near Tucson Arizonamentioning

confidence: 99%

The detachment era (1977–1982) and its role in revolutionizing continental tectonics

Wernicke

2009

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After the discovery of thrust-and-nappe structure near the turn of the twentieth century, mountain belts were viewed as a direct expression of horizontal shortening of the continental crust, and continental rifting was viewed as a phenomenon distinct from it. By mid-century, broad consensus had emerged, mainly on the basis of physical reasoning, that thrust-and-nappe structure instead reflected gravity sliding secondary to vertical motions of the crust, as embodied in the influential stockwerk folding hypothesis. In a noteworthy period from 1977 to 1982, informally referred to here as the 'detachment era', not only did the last vestiges of support for the stockwerk hypothesis evaporate, but large-magnitude extension was discovered throughout the Cordillera, manifest primarily by extensional detachments and metamorphic core complexes. Soon afterward extensional detachments were recognized as a global phenomenon, forcing first-order reinterpretation of field relations in most orogens. Although plate tectonics is indisputably the most profound discovery in Earth sciences in the twentieth century, the detachment era arguably had commensurate impact on field-based interpretations of continental tectonics. Three decades later, controversy persists over the origin of metamorphic tectonites in core complexes, and over the existence and mechanics of slip on shallowly dipping extensional detachments.

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“…There are a dozen or so north-trending faults within the roadless areas, most of which may be related to cauldron collapse but some of which have shown displacement since emplacement of the Pleistocene or Pliocene basaltic lava. Drewes (1978) has postulated that the Peloncillo Mountains are part of a large prevolcanic thrust plate related to the late Mesozoic and early Cenozoic Cordilleran orogeny. Whether or not such is the case, any Paleozoic or Mesozoic sedimentary rocks that may underlie the mountains must have been shattered and baked to some extent by the Oligocene volcanism.…”

Section: Geologic Settingmentioning

confidence: 99%