Low-accommodation detrital apron alongside a basement uplift, Pennsylvanian of Midcontinent North America

Joeckel, R.M.; Nicklen, Brian Lee; Carlson, Marvin P.

doi:10.1016/j.sedgeo.2006.09.005

Cited by 5 publications

(2 citation statements)

References 73 publications

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“…Thickness changes in the Pennsylvanian and Permian sediments around the Nemaha Uplift (Figure 4; e.g., [27]) indicate tectonic activity (reactivation as reverse faults) during this period, probably as a result of the Ancestral Rocky Mountain orogeny [59,65,66]. This orogeny is a result of the combined stresses on the intraplate region from the contemporaneous Antler orogeny to the west, transpression to the southwest, and the Ouachita-Marathon orogeny (i.e., the docking of Gondwana) to the southeast [67].…”

Section: Methodsmentioning

confidence: 99%

Joint and Lineament Patterns across the Midcontinent Indicate Repeated Reactivation of Basement-Involved Faults

et al. 2018

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Joint networks hosted in successively younger rocks, developing as a result of forced (trishear) folding of a rock mass above a deep-seated fault, can be used to infer the reactivation history of that deep-seated fault. This study aims to use joint networks in Pennsylvanian, Permian and Cretaceous rocks to document evidence of reactivation on basement faults during the Paleozoic and Mesozoic of Nebraska and Kansas. The most prominent basement features in southeast Nebraska and northeast Kansas are oriented NE-SW, likely related to the Midcontinent Rift System and Nemaha Uplift, and oriented NW-SE, likely related to fabrics from the Central Plains Orogeny. These features are well defined in the potential fields data. Joint patterns in the study area show an E-W oriented trend, as well as clearly discernable NE-SW and subsidiary N-S and NW-SE trends. The E-W trend is interpreted to be related to far-field stresses from Laramide and Ancestral Rocky Mountain orogenic events, whilst the NE-SW trend is interpreted to be related to subtle reactivation on the Mid-continent rift and related faults, observed in basement data. These movements produced stresses of sufficient magnitude to produce joints in the post-rift rock units, but not sufficient to generate shear fractures. Similarly, the~N-S and NW-SE joint trends are taken as evidence of subtle reactivation on the Nemaha Uplift and Central Plains Orogeny systems, generating joints by the formation of forced folds. This contribution therefore provides a convincing case study of the value of coupled potential fields and surface feature studies in discerning buried tectonic trends and subtle reactivation thereon.

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Section: Methodsmentioning

confidence: 99%

Joint and Lineament Patterns across the Midcontinent Indicate Repeated Reactivation of Basement-Involved Faults

et al. 2018

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“…Thickness changes in the Pennsylvanian and Permian sediments around the NU (e.g. Burberry et al, 2015) indicate active tectonics during this period, probably as a result of the Ancestral Rocky Mountain Orogen (ARM: Moore, 1926;Kluth & Coney, 1981;Gay, 1999;Joeckel et al, 2007). This orogeny is a result of the combined stresses on the intraplate region from the contemporaneous Antler orogeny to the west and the Ouachita-Marathon orogeny (i.e.…”

Section: Geologic Settingmentioning

confidence: 99%

Fracture and Lineament Patterns across the Midcontinent Indicate Post-Cretaceous Reactivation of Basement-Involved Faults

Burberry¹,

Swiatlowski²,

Searls³

et al. 2018

Preprint

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Reactivation of pre-existing weaknesses in the upper crust can be documented using surface features, and has occurred throughout time and space, particularly in regions where the basement material dates from the Precambrian and has undergone successive deformation events. This study aims to use surface features such as fracture patterns to document evidence of such reactivation in the Paleozoic and Cenozoic of Nebraska and Kansas (units separated by an unconformity in the study area). The most prominent basement features in southeast Nebraska and northeast Kansas are oriented NE-SW, likely related to the midcontinent rift, and oriented NW-SE, likely related to fabrics from the Central Plains Orogen. These features are well defined in the potential fields data. Fracture patterns in the study area show an E-W oriented trend, as well as clearly discernable NE-SW and subsidiary N-S and NW-SE trends. The E-W trend is interpreted to be related to far-field stresses from Laramide and Ancestral Rocky Mountain orogenic events, whilst the NE-SW trend is interpreted to be related to subtle reactivation on the Mid-continent rift and related faults, observed in basement data. These movements produced stresses of sufficient magnitude to produce extensional fractures in the overlying rock units, but not sufficient to generate shear. Similarly, the ~N-S and NW-SE fracture trends are taken as evidence of subtle reactivation on the Nemaha Uplift and Central Plains Orogen systems, generating fractures but not shear movement. This contribution therefore provides a convincing case-study of the value of fracture orientations (that is, surface morphodynamics) in discerning buried tectonic trends and subtle reactivation thereon.

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Sequence paleogeography and coal accumulation in epicontinental basin

Shao

Yang

et al. 2013

International Journal of Mining Science and Technology

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Low-accommodation detrital apron alongside a basement uplift, Pennsylvanian of Midcontinent North America

Cited by 5 publications

References 73 publications

Joint and Lineament Patterns across the Midcontinent Indicate Repeated Reactivation of Basement-Involved Faults

Joint and Lineament Patterns across the Midcontinent Indicate Repeated Reactivation of Basement-Involved Faults

Fracture and Lineament Patterns across the Midcontinent Indicate Post-Cretaceous Reactivation of Basement-Involved Faults

Sequence paleogeography and coal accumulation in epicontinental basin

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