Mechanics of Diapir Growth
1984. "Mechanics of Diapir Growth", Structural and Depositional Styles of Gulf Coast Tertiary Continental Margins: Application to Hydrocarbon Exploration, Martin P.A. Jackson, William E. Galloway
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Overburden parallel to dipping source layer (fig. 1A). All layers are equally thick. The overburden pressure (lithostatic pressure) = λ (acceleration due to gravity) times the sum of all the products of layer thickness, η, and density, P, with correction for dip, a. The pressure head within the fluid source layer is equal at points P1 and P2 and everywhere else along the upper contact of the source layer. Thus the total hydraulic head between P1 and P2 equals only the difference in gravity head. Because P1 is lower than P2, salt flows downhill in the direction of lower total hydraulic head. In this example salt flows downhill regardless of the overburden density. Where both the source layer and its overburden are horizontal, the pressure head and gravity head are constant along a horizontal plane. The total hydraulic head is zero, so no flow occurs.
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Structural and Depositional Styles of Gulf Coast Tertiary Continental Margins: Application to Hydrocarbon Exploration
The structure and genetic stratigraphy of the Gulf of Mexico continental margin are inextricably intertwined. As hydrocarbon exploration and exploitation advance into the deeply buried Tertiary basin fill, interpretation of the complex depositional and structural styles of the outer shelf and upper slope setting will increasingly challenge the interpreter. This publication provides a coherent summary of the key concepts, models, and tools that are needed to meet this exploration challenge, and includes chapters on: basic principles, submarine slope systems, models of growth faults, mechanics of diapir growth, petroleum traps, and techniques on analyzing normal faults and balancing cross sections with extended strata.