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see foldfold,
in geology, bent or deformed arrangement of stratified rocks. These rocks may be of sedimentary or volcanic origin. Although stratified rocks are normally deposited on the earth's surface in horizontal layers (see stratification), they are often found inclined or curved
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The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



a fold of stratified rocks which is convex upward. The bending point of the strata is called the anticlinal hinge. The surface connecting the bendings of all the strata composing the anticline is called the axial surface, and the sides of the anticline are called limbs. Depending on the position of the axial surface and the direction of the incline of the limbs, an anticline may be vertical, inclined, overturned, or recumbent. According to the configuration, it is possible to distinguish a linear anticline in which the lengtn is significantly greater than the width, a brachyanticline in which the length is somewhat greater than the width, and a dome in which the length and width are approximately equal.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.


A fold in which layered strata are inclined down and away from the axes.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.


a formation of stratified rock raised up, by folding, into a broad arch so that the strata slope down on both sides from a common crest
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in periodicals archive ?
Drainage patterns of Zindapir Anticline (ZA), Sakhi Sarwar (SS), Sulaiman Foredeep (SF) and Kingri Fault (KF) areas were generated using Strahler order of streams.
They frequently have a roll-over anticline with four-way closure on the down-thrown side of the fault and antithetic faulting in the down-thrown block.
They cause restraining (anticlines with axis and strain veering, heavily faulted regions, fractured or upward faults, and river veering) and releasing (local ponds, and axis fold separation).
By 1989, the Duperow Formation on the Billings Anticline was the second most prolific hydrocarbon producer (1).
Qalavand stated that seven more anticlines containing oil and gas reserves have been discovered in Zilaei region near Masjed Soleiman city and existence of oil and gas reserves has been proven by drilling two wells.
The Meander anticline in Utah, has its axial trace along the Colorado River for 41 km and on the southeast side of the river, eight tributary canyons also contain valley anticlines.
"This is the first time that we've found true folds on Europa." The anticlines, as the folds are called by geologists, are spaced about 25 kilometers apart.
The major structural trend is WNW-ESE with alternating anticlines and synclines bounded on either side by thrust faults.
Anticlines within the Dezful Embayment coincide with modest topographic highs, generally only a few tens of metres above the surrounding plains, which are themselves only a few metres above sea level.
The recent activity of these faults has been responsible for the current topography of the basin, with uplifted areas corresponding to anticlines and subsiding areas related to growth synclines.
Both are types of folded rock: Anticlines are upfolds; synclines are downfolds.