Results 131 to 140 of about 218 (174)

Vøring Plateau diapir fields and their structural and depositional settings

Marine Geology, 1997
Abstract Three fields of sea floor piercing diapiric structures, the Vema, Vigrid and Vivian diapir fields, exist on the marginal Voring Plateau, where individual structures rise as much as 150 m above the sea floor. The large Vema diapir field lies over two major arch structures, the Vema and Naglfar domes, whereas the Vigrid diapir field is located
Berit Oline Hjelstuen, Olav Eldholm, Jakob Skogseid   +2 more
openaire   +1 more source

Seismic study of the mud diapir structures in the Okinawa Trough

Geological Journal, 2016
AbstractIn the Okinawa Trough, a number of mud diapirs were observed by the seismic datasets from several different cruises. In this paper, based on the seismic profiles, we separated three different types of mud diapirs according to their configuration.
Junhui Xing, Xiaodian Jiang, Deyong Li
openaire   +1 more source

Geometry and structural evolution of Lorbeus diapir, northwestern Tunisia: polyphase diapirism of the North African inverted passive margin

International Journal of Earth Sciences, 2014
Detailed geologic mapping, structural analysis, field cross-sections, new dating based on planktonic foraminifera, in addition to gravity signature of Lorbeus diapir, are used to characterize polyphase salt diapirism. This study highlights the role of inherited faulting, which controls and influences the piercement efficiency and the style and geometry
Masrouhi, Amara, Bellier, Olivier, Koyi, Hemin   +2 more
openaire   +3 more sources

Mudlumps: Diapiric Structures in Mississippi Delta Sediments: ABSTRACT

AAPG Bulletin, 1965
Mudlump islands are surface manifestations of intrusive clay masses that result from depositional processes at the mouths of major Mississippi River distributaries. The stratigraphy and structure of mudlumps at the South Pass mouth have recently been studied through a drilling and coring program which included holes to depths of 700 feet.
openaire   +1 more source

Structural tests of diapir hypotheses in Archean crust of Ontario

Canadian Journal of Earth Sciences, 1990
Detailed structural maps of two granitoid complexes in the Wabigoon Subprovince are used to test three diapir hypotheses advanced in earlier papers. The gneiss masses of, and individual domes within, the complexes fail the test for solid-state diapirism. The gneiss domes also fail the test for tensile bending caused by hypothetical magmatic diapirs in
openaire   +1 more source

Finite strain and progressive deformation in models of diapiric structures

Tectonophysics, 1975
Abstract The distribution of strain within and around gravitationally produced diapiric structures was studied through the use of experimental models which were deformed in a large-capacity centrifuge. A new method of model construction was developed which is equivalent to building the model of initially square 1-mm elements.
openaire   +1 more source

Diapiric Structures on the Campeche Shelf and Slope, Western Gulf of Mexico

Geological Society of America Bulletin, 1970
Recently collected seismic reflection profiles reveal numerous emerged and buried diapiric structures along the Campeche Shelf and slope, south of 20° N. latitude. Slope diapirs have steep sides, relatively flat tops, and a subsurface reflector which may be an expression of caprock.
J. ALAN BALLARD, ROBERT H. FEDEN
openaire   +1 more source

Prediction of the internal structure of salt diapirs - is that possible?

We explore this question using the example of salt structures in Northern Germany. The salt mines in the North German basin are among the best explored in the world. The question now arises as to whether findings on the internal structure of these salt structures also allow conclusions to be drawn about previously unexplored diapirs.
Jähne-Klingberg, Fabian, Pollok, Lukas
openaire   +1 more source

Diapiric and other deformational structures in an oligocene argillaceous limestone

Sedimentary Geology, 1971
Abstract Structures from a laminated argillaceous limestone near the base of the brackish to freshwater Bembridge Marls in the Isle of Wight, southern England, have resulted from sediment cracking, and subsurface mobilisation and flow. Some cracks are syngenetic, whilst others are of diagenetic origin. The former are infilled with sediment and formed
openaire   +1 more source

Escarpments, Reef Trends, and Diapiric Structures, Eastern Gulf of Mexico

AAPG Bulletin, 1969
Abstract Dredging, coring, and arcer profiling of the Florida escarpment southward from 28°1.5′N, 86°24′W, to the Florida Strait, of Jordan Knoll (23°20′N, 83°45′W) in the Florida Strait, and of the Campeche escarpment northeast of Yucatán (23°39′-23°45′N, 85°22′-85°26′W) have revealed the presence in all three areas of late Aptian ...
William R. Bryant, A. A. Meyerhoff, Noel K. Brown, Max A. Furrer, Thomas E. Pyle, John W. Antoine   +5 more
openaire   +1 more source