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An anticlinorium is a large anticline in which a series of minor anticlinal folds are superimposed. Examples include the Late Jurassic to Early Cretaceous Purcell Anticlinorium in British Columbia [ 1 ] and the Blue Ridge anticlinorium of northern Virginia and Maryland in the Appalachians, [ 6 ] or the Nittany Valley in central Pennsylvania.
Anticlinal trap. An anticline is an area of the subsurface where the strata have been pushed into forming a domed shape. If there is a layer of impermeable rock present in this dome shape, then water-insoluble hydrocarbons can accumulate at the crest until the anticline is filled to the spill point (the highest point where hydrocarbons can escape the anticline).
Anticlinal traps are formed by folding of rock. For example, if a porous sandstone unit covered with low permeability shale is folded into an anticline, it may form a hydrocarbons trap, oil accumulating in the crest of the fold. Most anticlinal traps are produced as a result of sideways pressure, folding the layers of rock, but can also occur ...
Anticlinal may refer to: Anticline , in structural geology, an anticline is a fold that is convex up and has its oldest beds at its core Anticlinal, in stereochemistry, a torsion angle between 90° to 150°, and –90° to –150°; see Alkane_stereochemistry
In structural geology, a syncline is a fold with younger layers closer to the center of the structure, whereas an anticline is the inverse of a syncline. A synclinorium (plural synclinoriums or synclinoria ) is a large syncline with superimposed smaller folds. [ 1 ]
Arley Anticline: England E&W 110 BGS:BRG 10 Arley Dome: Warwickshire England E&W 169 Arlington Anticline: East Sussex England E&W 319/334 Armadale Antiform: Scotland Sc 115W Ashby Anticline: Leicestershire England E&W 141, 155 (x-sections) BGS:BRG 10; Smith et al. 2005 Ashover Anticline: England E&W 112 Smith et al. 2005 Astbury Anticline: England
Continued shortening and excess material within the anticlinal core not only results in increased amplitude and disharmonic folds, but may lead to the onset of thrusts out of the folded synclinal or anticlinal regions. Through further deformation by limb rotation and through hinge migration, isoclinal folds eventually assume lift-off geometries.
The result is an anticline feature in a completely extensional setting. As rollover anticlines develop during sedimentation, each layer typically shows thickening toward the controlling fault. As the underlying layers bend, they create more accommodation space along the controlling fault versus the crest of the anticline.