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Related to diapiric: piercement


A geological structure formed when a mass of material of high plasticity and low density, such as salt, gypsum, or magma, pushes upward into overlying strata.

[French, from Greek diapeirein, to push through : dia-, dia- + peirein, to pierce; see per- in Indo-European roots.]

di′a·pir′ic adj.


of or pertaining to a diapir; of the nature of a diapir
References in periodicals archive ?
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.
The fault zone is believed to be undergoing dominant strikes lip deformation of transpressional nature but the diapiric flow of the salt and its final extrusion have resulted in the development of Ziarat Pir Fault that exhibits a normal sense of movement.
2012) Clustering of Diapiric Provinces in the Central Iran Basin.
Sabzeei [5] classifies the Iran Ophiolitic complexes into two types of rocks with different ages and believes that uniform Pridotites--Serpentine masses of the Ophiolitic complex are rocks older than the lower Paleozoic to Permian which during the next eras especially in upper Cretaceous--Eocene era that have taken place inside the colored melanges in masses with diapiric structure.
In the present paper the diapiric origin of Pargimagi Hill has been proved for the first time.
The fluids circulated upward into the amygdaloids and the vuggy areas of the diapiric structures through faults and joints in the basalt.
Some present day offshore bioherms found in the continental shelf are supported by these diapiric structures (Vernette, 1989b).
The fundamental geological features of the dome are deep tectonic fractures (faults) determining both diapiric uplift movement of salt and hydrogeological conditions of the upper strata (Fig.
For example, volcanic centres in the Central American arc are typically spaced about 25 km apart, and are thought to be the result of diapiric uprise from a larger pool of magma that parallels the length of the arc (Marsh 1979; Gill 1981).
Thirty-four of the whale sharks sighted were in close proximity to relatively small, high relief diapiric features dominated by coralline algae (Rezak et al.