Isoclinal Fold

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Isoclinal Fold

 

or isocline, a fold in sedimentary rocks where the axial surface and limbs slope in the same direction and at approximately the same angle. Isoclinal folds are formed under conditions of intensive lateral compression or with slipping brought about by the force of gravity.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
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These drill holes, combined with Stage I drilling and geophysical inversion modelling, suggested that a large body of magnetite gneiss occurs in the area, possibly as an overturned isoclinal fold, with a south southeast dipping axial plane.
Various forms of minor folds that are found associated with the rocks of the Imphal Valley are Coffer (Box) fold, Sharp (Angular) fold, Isoclinal fold, Harmonic and Disharmonic fold.
A single traverse of eight drill holes at Murphy South, combined with Stage I drilling and geophysical inversion modelling, suggests that a large body of magnetite gneiss occurs in this area as a large overturned isoclinal fold, with a south southeast dipping axial plane.
The structure of the 132 North deposit is dominated by a small north-plunging parasitic isoclinal fold which lies on the steeply dipping western limb of the 132 Anticline, immediately north of the Widgiemooltha Dome (Fig.
Mineralization at the Discovery Mine consists of gold bearing "saddle-reef" type quartz veins hosted in the fold hinges of isoclinal folded meta-sedimentary rocks of the Burwash Formation, one of several units that comprise the Archean age Yellowknife Supergroup.
Strata in the Fredericton trough dip steeply, typically within 15-20[degrees] of vertical and numerous reversals of facing indicators demonstrate significant crustal shortening through small-scale upright isoclinal folds. Unfortunately, the lack of marker horizons makes it impossible to subdivide the Flume Ridge Formation or identify large-scale structures.
The deep-water turbidites and shallow-water carbonates of Morrowan-Lower Atoka to the south of the fault are dominated by isoclinal folds and imbricate faults [10].
In the peripheral areas, there are typical narrow and compact isoclinal folds of different vergency formed in the locations of highest stress of this Moldanubicum block (Zrustek et al., 1977).