Results 171 to 180 of about 3,154 (227)
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Megaflaps adjacent to salt diapirs
AAPG Bulletin, 2016Megaflaps are steep stratal panels that extend far up the sides of diapirs or their equivalent welds. They have multiple-kilometer fold widths and structural relief and are thus distinct from smaller-scale composite halokinetic sequences. Maximum dips range from near-vertical to completely overturned.
Mark G. Rowan +3 more
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Carbonate formation and alteration in the salt diapir caprock (Paskhand salt diapir, Southern Iran)
2023The eastern Zagros Fold and Thrust Belt (ZFTB) in Iran includes a salt tectonic province with roughly 130 salt-gypsum diapirs emerging within the Neoproterozoic-Early Cambrian Hormuz Complex. The diapirs in the ZFTB differ in composition and in their distribution of exposed caprock mélanges (CRMs).
Sadegh Adineh +5 more
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DIAPIRIC SALT VOLUME OFFSHORE LOUISIANA
GEOPHYSICS, 1971This short note reports that approximately 25,600 cubic miles of diapiric salt exists in offshore Louisiana to a water depth of 100 fathoms (Figure 1).
T. R. LaFehr, Alan T. Herring
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Internal Kinematics of Salt Diapirs
AAPG Bulletin, 1987The internal structure of intrusive and extrusive salt bodies elucidates their external shape and the mechanism and history of diapiric emplacement--information relevant to petroleum exploration. Trace amounts of brine can act like heat to weaken salt and promote geologic creep by solution-transfer mechanisms.
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Internal Kinematics of Salt Diapirs: DISCUSSION
AAPG Bulletin, 1989Iklbot and Jackson (1987) presented a very good sum mary of several aspects of salt-stock configuration and emplacement as applied to the United States Gulf Coast. One aspect of this emplacement is a process they describe as "nested toroidal stream surfaces" (Iklbot and Jack son, 1987, p. 1083. their Figure 11) or toroidal flow.
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Physical modelling of North Sea salt diapirism
Geological Society, London, Petroleum Geology Conference Series, 1993Scaled analogue models provide a powerful tool for investigating progressive deformation. By varying experimental parameters it is possible to produce a wide variety of diapir morphologies and overburden responses. This paper describes the results of one of a series of experiments which investigates the geometry of overburden sediments around
P. J. WESTON, I. DAVISON, M. W. INSLEY
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Journal of Structural Geology, 1998
Abstract Six parameters shape the geometry of passive diapirs associated with stiff overburden: rates of salt supply ( S ′); dissolution ( D ′; sediment accumulation ( A ′); erosion ( Er′ ); extension ( E ′); and shortening ( Sh′ ). These parameters change in space and time, and hence influence the geometry of the structure as it forms.
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Abstract Six parameters shape the geometry of passive diapirs associated with stiff overburden: rates of salt supply ( S ′); dissolution ( D ′; sediment accumulation ( A ′); erosion ( Er′ ); extension ( E ′); and shortening ( Sh′ ). These parameters change in space and time, and hence influence the geometry of the structure as it forms.
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Salt Diapirism in Southern Iran
AAPG Bulletin, 1974More than 200 piercement salt plugs are present in southern Iran and in the Persian Gulf region. Recent investigations have shown the salt, the Hormuz Series, to be largely of Precambrian (late Proterozoic) age. The diapirs are famous for their tonguelike projections, known as "salt glaciers," and for their associated igneous, metamorphic, and ...
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ALTERNATIVES TO HALOKINESIS IN SALT DIAPIRISM
Journal of Petroleum Geology, 1990Over the past decade, and particularly in the last two or three years, there has been a change in the climate of thought on some aspects of salt geology and salt tectonics. Specifically, there has been a tendency to consider the development of many salt structures as being a result of non-halokinetic processes, in contrast to the strong emphasis placed
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Three-dimensional Diffraction Response of Salt Diapirs
Proceedings, 2012DEDICATED - Case Studies in Diffraction Imaging and Interpretation. We investigate the 3D diffraction response of the salt/sediment interface of salt diapirs using synthetic modeling and real data examples. The terminations of host rock layers against the flanks of a salt diapir are especially difficult to image using the seismic reflection method in ...
M. A. Pelissier +3 more
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