Results 121 to 130 of about 218 (174)

Development of Diapiric Structures in the Upper Mantle Due to Phase Transitions

Science, 1991
Solid-state phase transitions in time-dependent mantle convection can induce diapiric flows in the upper mantle. When a deep mantle plume rises toward phase boundaries in the upper mantle, the changes in the local thermal buoyancy, local heat capacity, and latent heat associated with the phase change at a depth of 670 kilometers tend to pinch off the ...
M, Liu, D A, Yuen, W, Zhao, S, Honda
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Diapiric Structures in Egypt and Syria

AAPG Bulletin, 1964
ABSTRACT Diapiric structures have been recorded in Egypt and Syria, in the mobile belt, south and east of the Mediterranean. They are associated with anticlinal areas, mainly of the Syrian Arc System, that trend southwest from Syria (Palmyrean Chain) across Palestine and Northern Sinai to the Western Desert of Egypt.
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The Blomskog granite — a possible diapiric structure

Precambrian Research, 1977
Abstract A group of granitic intrusions occurs in western Sweden, showing a regular spacing between consecutive intrusions. Their spacing suggests solid-state doming of granitic material. However the textures of the rock are most easily interpreted in terms of crystallization from a magma.
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Gosses bluff — diapir, crypto‐volcanic structure or astrobleme?∗

Journal of the Geological Society of Australia, 1966
Abstract Gosses Bluff, west of Alice Springs, Northern Territory, comprises a roughly circular rim of steeply dipping sandstone, locally overturned with downward facing folds, surrounding a topographically lower core of steeply dipping faulted sandstone, shale, and limestone. Abundant shattercones occur both in outcrop and to depths of 1,000 m.
K. A. W. Crook, P. J. Cook
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Paleomagnetism as a structural polarity criterion: application to Tunisian diapirs

Journal of Structural Geology, 2000
Abstract In the Upper Aptian–Albian units, close to Triassic displaced bodies of northwestern Tunisia, the primary magnetization acquired during the Cretaceous period of normal magnetic polarity yields an unquestionable structural polarity criterion.
Bernard Henry, Henri Rouvier, Maxime Le Goff, Amor Smati, Nouri Hatira, Essaied Laatar, Abdelbaki Mansouri, Vincent Perthuisot   +7 more
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Diapiric structures in the eastern Mediterranean Cilicia basin

Geology, 1977
A detailed seismic reflection profiling survey of part of the Cilicia basin, between Cyprus and Turkey, shows structures that are probably salt domes or walls with an approximately east-west orientation. Sediment velocities of 4.3 and 6.7 km s −1 were found at depths of 1 and 3 km below the sea bed.
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Interpretation and geomodelling of diapiric structures using the SlIS workstation

53rd EAEG Meeting, 1991
The value of workstations for exploration and development has long been appreciated, but recently in addition to the interpretation and general mapping capabilities, interactive geomodelling techniques carried out wholly within the workstation environment are becoming available.
D. Jackson, A. Carter, J. Farnsworth
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Diapiric structures in the eastern Mediterranean Herodotus basin

Earth and Planetary Science Letters, 1976
A 45-km square seismic reflection profiling grid survey was made in the part of the Herodotus basin where there is a large thickness of strongly deformed sediment, to determine the nature and cause of the deformation. The survey showed that the area has sediment ponded between highs in the underlying deformed sedimentary sequence, which becomes more ...
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Diapirs and Diapirlike Structures, Southeastern Bering Sea: ABSTRACT

AAPG Bulletin, 1970
Abstract Four diapiric folds and two folds that are probably diapiric have been located by seismic-reflection profiling beneath the edges of Umnak Plateau, a broad platform at a depth of about 1,860 m in the southeastern corner of the Bering Sea. The plateau is underlain by 2,000-3,000 m of generally flat-lying strata thought to be of
David W. Scholl, Michael S. Marlow
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Diapiric Structures in the Diablo Range, California: ABSTRACT

AAPG Bulletin, 1965
The Diablo Range is one of the northwest-trending central Coast Ranges of California. It is a complexly-faulted, asymmetrical anticlinorium structurally bounded on the west by the San Andreas fault and on the east by the San Joaquin Valley. Its core consists of the Late Jurassic Franciscan Formation and intruding serpentine.
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