diapir

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Related to diapiric: piercement

diapir

[′dī·ə‚pir]
(geology)
A dome or anticlinal fold in which a mobile plastic core has ruptured the more brittle overlying rock. Also known as diapiric fold; piercement dome; piercing fold.
References in periodicals archive ?
However, the diapiric core of the hills together with small thickness of the Quaternary cover shows (Fig.
Anticlines caused by diapiric processes are prevailing among the folds of the studied area.
1989, Diapiric transfer of melt in Kilauea Iki lava Lake, Hawaii: a quick, efficient process of igneous differentiation: Geological Society of America Bulletin, v.
Based on this Krasnodar analog, these stacked reservoirs should have substantially greater petroleum reserves than contained in the smaller anticlinal features, such as Aktash, formed on the top of these diapiric structures.
Possibly layer 2 experienced the removal of interstitial melt through the diapiric rise of low density Fe-depleted residual magma "blebs" formed by the crystallization of an Fe-rich phase (e.
In addition, the shales associated with the rollover faults are commonly over- pressured and diapiric, adding to structural development in the overburden and increasing the seal on faults.
In addition, the shales associated with the roll-over faults are commonly over-pressured and diapiric, adding to structural development in the over-burden and increasing the seal on faults.