Regional extension as a geologic trigger for diapirism
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Geological Society of America , Boulder, Colo
|Other titles||Geological Society of America Bulletin.|
|Statement||M. P. A. Jackson, B. C. Vendeville.|
|Contributions||Vendeville, B. C.|
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Physical modeling shows that extension of the basement has only indirect influence on diapirism by creating space for extension of the overburden, which is the direct cause of diapirism, whether extension is thick-skinned or thin-skinned and whether the Cited by: Regional extension as a geologic trigger for diapirism.
January ; Survey of 18 major salt-diapir provinces shows that salt upwelling is closely linked in time and space to regional.
adshelp[at] The ADS is operated by the Smithsonian Astrophysical Observatory Regional extension as a geologic trigger for diapirism book NASA Cooperative Agreement NNX16AC86ACited by: Modern Extension and Salt Diapirism.
Postrift Salt. Synrift, Interrift, and Prerift Salt. Superposed Crustal Shortening. Long-Impeded Piercement of Precambrian Salt. Geologic Evidence Summarized. Part 2: Mechanical Modeling. How Extension Triggers Diapirism. Viscous Forces in Salt without Regional Extension.
Pressure Forces in Salt without Price: $ Modern Extension and Salt Diapirism. Postrift Salt. Synrift, Interrift, and Prerift Salt.
Superposed Crustal Shortening. Long-Impeded Piercement of Precambrian Salt. Geologic Evidence Summarized. Part 2: Mechanical Modeling. How Extension Triggers Diapirism. Viscous Forces in Salt without Regional Extension. Pressure Forces in Salt without. Initiation of salt diapirism by regional extension.
Austin, Tex.: Bureau of Economic Geology, University of Texas at Austin, (OCoLC) Material Type: Government publication, State or province government publication: Document Type: Book: All Authors / Contributors: M. This interpretation reveals that the great deformations accompanying salt diapirism and halokinesis are the principal trigger for salt tectonics.
With regional extension, normal faults on the. Diapirism underlying less dense rock rises through buoyant forces.
Diapirs (Fig. ) are most commonly composed of evaporatic salt deposits (salt domes) or gas-charged muds, but may be igneous and found commonly associated with trapped salts during different episodes of sediment deposition and evolution of continental ism is also associated with shale and mud as the lesser.
Arabia Terra is a region of Mars located at the boundary between the southern highlands and the northern lowlands and classically dominated by heavily cratered terrain.
Unlike the rest of the topographic dichotomy on the planet, in Arabia Terra the elevation transition is very gentle, falling of 4 km over a distance of km (average slope = °).
Most of the impact craters within the. Fort, X., Brun, J.-P., Kinematics of regional salt flow in the northern Gulf of Mexico. and Vendeville, B. C., Regional extension as a geological trigger for diapirism. Geological Society of Raft tectonics: the effects of basal slope value and sedimentation rate on progressive extension.
Journal of Structural Geology, This fact suggests that regional extension is the primary trigger for salt diapirism. Swarms of normal faults adjoin the deep flanks of many diapirs, reflecting their early extensional histories (e.g., Fig.
15). Download: Download full-size image; Fig. Serial sections of a diapiric wall formed in an extensional physical model.
[Abstract Integration of extensive fieldwork, remote sensing mapping and 3D models from high‐quality drone photographs relates tectonics and sedimentation to define the Jurassic–early Albian diapiric evolution of the N–S Miravete anticline, the NW‐SE Castel de Cabra anticline and the NW‐SE Cañada Vellida ridge in the Maestrat Basin (Iberian Ranges, Spain).
Fossen is to be applauded for crafting a unique, high-caliber, and accessible undergraduate textbook on structural geology beautifully illustrated, with excellent original color diagrams and with impressive color field photographs that are all keyed to locations and placed into geologic context.
This book will likely get a lot of use. incorporating margin tilting, regional extension, and sedimentation. The numerical models show that sediment progradation combined with basinward tilt destabilizes the salt-overburden system more than progradation alone.
A basinward margin tilt of 1 degree accelerates the evolution of the. Cross Sections.
Description Regional extension as a geologic trigger for diapirism EPUB
The cross section on the right (Jackson et al, ) follows the green line, X–X', in the overhead view above. The section was traced from a slice of the model at the end of deformation (C) was reconstructed (D) (by B.
Vendeville) to show the western (E) and central (F) diapirs during the extensional phase (Stage 2). The Central European Basin is a classic area of salt tectonics, characterized by heterogeneous structural evolution and complex salt movement history. We studied an area on its SW margin, based on prestack depth-migrated 2D and 3D seismic data.
We use seismic interpretation and retro-deformation to obtain a better understanding of salt tectonics, structural control, and sedimentary. This book focuses on the dynamics and kinematics of salt diapirs with crestal bulbs shaped like a mushroom, one of the most complex types of diapirs, as interpreted by experimental modeling and from naturally occurring examples.
Regional extension and contraction were excluded in the models.
Details Regional extension as a geologic trigger for diapirism EPUB
In our experiments, prograding wedges above a. Geologic Sediments Seawater Fresh Water Rivers Phylogeny Estuaries Oceans and Seas Ecosystem Lakes Genes, rRNA Biodiversity Anaerobiosis Wetlands Base Composition Eutrophication Water Movements Oxidation-Reduction Biota Groundwater Bays Boden.
Regional extension as a geologic trigger for diapirism. Bull. Geol. Soc.B.C. & Jackson, M.P.A. The rise and fall of diapirs during thin-skinned extension.
Bureau of Economic Geology Report of. Books at Amazon. The Books homepage helps you explore Earth's Biggest Bookstore without ever leaving the comfort of your couch.
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Here you'll find current best sellers in books, new releases in books, deals in books, Kindle eBooks, Audible audiobooks, and so much more. Gravity‐driven salt tectonics along passive margins is commonly depicted as comprising domains of updip extension and downdip contraction linked by an intermediate, broadly undeformed zone of translation.
This study expands on recently published physical models using discrete‐element modeling to demonstrate how salt‐related translation over pre‐salt rift structures produce complex. Abstract At many continental margins, differential sediment loading on an underlying salt layer drives salt deformation and has a significant impact on the structural evolution of the basin.
We use 2‐D finite‐element modelling to investigate systems in which a linear viscous salt layer underlies a frictional‐plastic overburden of laterally varying thickness. The Geology of series seeks to systematically present the geology of each country, region and continent on Earth.
Each book aims to provide the reader with the state-of-the-art understanding of a regions geology with subsequent updated editions appearing every 5 to 10 years and accompanied by an online "must read" reference list, which will be updated each year.
Regional Geology The geological evolution of Yemen was driven by the plate motions that broke Pangea Intense Paleogene faulting induced reactive diapirism that in places evolved into active growthRegional extension as a geological trigger for diapirism: Geological Society of America Bulletin, v.
p. Paul, S.K., The TRANSMED Atlas, consisting of a CD-ROM and a book, provides an updated overview of the geological and geophysical characteristics of the Mediterranean region by integrating new and pre-existing data on surface geology, seismic profiles and mantle tomography, both on land and at sea.
Sixty-two structural geologists, geophysicists, marine geologists, petrologists, sedimentologists 5/5(1). centrations (Mago Group) in it. However, due to regional compression, we are now encountering its additional diapirism.
Meanwhile, as the salt domes have projected in a dominant north-south direction, the external trigger impact on the region’s diapirism shall be assumed effective  - . Yin, A. Origin of regional, rooted low-angle normal faults: a mechanical model and its tectonic implications.
Tectonics 8, – (). ADS Article Google Scholar. Fig. Sections of pure spreading models simulating the progradation of a sedimentary wed free frontal boundary (modified after Vendeville, ). The series of sections shows the extrusion of a salt nappe at the front.
- "EXTENDED ABSTRACT: Salt Tectonics at Passive Margins: Geology Versus Models". The primary contribution of this paper was the recognition that extension causes diapir growth, instead of vice versa.
This recognition provided a key to understanding the process of salt diapir development by combining hitherto separate lines of thought on regional extension and salt diapirism into one self-consistent model.
Return to top. Regional Geology The geological evolution of Yemen was driven by the plate motions that broke Pangea apart in the Mesozoic and formed the Gulf of .Diapir is part of WikiProject Geology, an attempt at creating a standardized, informative, comprehensive and easy-to-use geology resource.
If you would like to participate, you can choose to edit this article, or visit the project page for more information. Start This article has been rated as Start-Class on the project's quality scale. Mid This article has been rated as Mid-importance on the.Salt deformation is the change of shape of natural salt bodies in response to forces and mechanisms that controls salt flow.
Such deformation can generate large salt structures such as underground salt layers, salt diapirs or salt sheets at the surface. Strictly speaking, salt structures are formed by rock salt that is composed of pure halite (NaCl) crystal.
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