Definition of diapir in English:

diapir

noun ˈdʌɪəpɪəˈdīəˌpir

Geology

A domed rock formation in which a core of rock has moved upward to pierce the overlying strata.
〔地质〕底辟，挤入构造
Example sentencesExamples
- Essentially, this means that over geological timescales, diapirs flow through the sub-surface.
- Various architectures connecting extrusive mud volcanic cones to their underlying source layer have been described, ranging from bulbous diapirs to steep diatremes and narrow vertical pipes.
- Mud diapirs, pockmarks and mud volcanoes are common features at seepage sites, where various pathways such as faults, other fractures and sedimentary discontinuities act as conduits for fluid seepage.
- In more thickly sedimented slope and basin blocks, this fault and parallel faults to the south are marked by ENE alignments of elongate and shear mud diapirs or continuous, narrow mud walls.
- The established idea that granitoid magmas ascend through the continental crust as diapirs is being increasingly questioned by igneous and structural geologists.

Derivatives

diapiric

adjective

Geology

The sparse evidence includes the Buck Mesa 1 hydrocarbon well on the flank of the Dome and seismic reflection and refraction data, which have been interpreted to show that diapiric evaporites are absent beneath the structure.
Example sentencesExamples
- Folds associated with intraformational faults in the Tertiary mudstones of the southernmost North Sea show a similar asymmetry, with anticlines locally developing into diapiric structures.
- They flow under differential loading and when subjected to such loading or tectonic stress can produce diapiric structures, many of which have associated traps for hydrocarbons.
- In particular they show that the conspicuous strike swing in the host rocks around the complex is an earlier structure, that passively controlled emplacement, and is not the result of diapiric pluton emplacement.
- Many scientists think that hotspots mark locations where diapiric convection cells, called mantle ‘plumes’, rise beneath lithospheric plates.

diapirism

noun

Geology

This can be related to shearing along the decollement during underthrusting or to mud diapirism.
Example sentencesExamples
- Attempting to provide a purely terrestrial explanation for the central uplift, 1 have suggested that it could have been caused by reactive diapirism of the Lower Jurassic succession beneath an extending Cretaceous cover.
- One of the most impressive manifestations of salt diapirism is where diapirs emerge at the present surface as a glacier of pure salt, moving at rates of between ten and one hundred metres per thousand years.
- Uplift would result from resultant mantle upwelling or asthenospheric diapirism.
- Reactive diapirism in Lower Jurassic shales may have contributed to the formation of a central uplift at base Cretaceous level.

Origin

Early 20th century: from Greek diapeirainein 'pierce through', from dia 'through' + peirainein (from peran 'pierce').

Definition of diapir in US English:

diapir

nounˈdīəˌpir

Geology

A domed rock formation in which a core of rock has moved upward to pierce the overlying strata.
〔地质〕底辟，挤入构造
Example sentencesExamples
- The established idea that granitoid magmas ascend through the continental crust as diapirs is being increasingly questioned by igneous and structural geologists.
- Mud diapirs, pockmarks and mud volcanoes are common features at seepage sites, where various pathways such as faults, other fractures and sedimentary discontinuities act as conduits for fluid seepage.
- Essentially, this means that over geological timescales, diapirs flow through the sub-surface.
- Various architectures connecting extrusive mud volcanic cones to their underlying source layer have been described, ranging from bulbous diapirs to steep diatremes and narrow vertical pipes.
- In more thickly sedimented slope and basin blocks, this fault and parallel faults to the south are marked by ENE alignments of elongate and shear mud diapirs or continuous, narrow mud walls.

Origin

Early 20th century: from Greek diapeirainein ‘pierce through’, from dia ‘through’ + peirainein (from peran ‘pierce’).

单词	diapir
释义	Definition of diapir in English: diapir noun ˈdʌɪəpɪəˈdīəˌpir Geology A domed rock formation in which a core of rock has moved upward to pierce the overlying strata. 〔地质〕底辟，挤入构造 Example sentencesExamples Essentially, this means that over geological timescales, diapirs flow through the sub-surface. Various architectures connecting extrusive mud volcanic cones to their underlying source layer have been described, ranging from bulbous diapirs to steep diatremes and narrow vertical pipes. Mud diapirs, pockmarks and mud volcanoes are common features at seepage sites, where various pathways such as faults, other fractures and sedimentary discontinuities act as conduits for fluid seepage. In more thickly sedimented slope and basin blocks, this fault and parallel faults to the south are marked by ENE alignments of elongate and shear mud diapirs or continuous, narrow mud walls. The established idea that granitoid magmas ascend through the continental crust as diapirs is being increasingly questioned by igneous and structural geologists. Derivatives diapiric adjective Geology The sparse evidence includes the Buck Mesa 1 hydrocarbon well on the flank of the Dome and seismic reflection and refraction data, which have been interpreted to show that diapiric evaporites are absent beneath the structure. Example sentencesExamples Folds associated with intraformational faults in the Tertiary mudstones of the southernmost North Sea show a similar asymmetry, with anticlines locally developing into diapiric structures. They flow under differential loading and when subjected to such loading or tectonic stress can produce diapiric structures, many of which have associated traps for hydrocarbons. In particular they show that the conspicuous strike swing in the host rocks around the complex is an earlier structure, that passively controlled emplacement, and is not the result of diapiric pluton emplacement. Many scientists think that hotspots mark locations where diapiric convection cells, called mantle ‘plumes’, rise beneath lithospheric plates. diapirism noun Geology This can be related to shearing along the decollement during underthrusting or to mud diapirism. Example sentencesExamples Attempting to provide a purely terrestrial explanation for the central uplift, 1 have suggested that it could have been caused by reactive diapirism of the Lower Jurassic succession beneath an extending Cretaceous cover. One of the most impressive manifestations of salt diapirism is where diapirs emerge at the present surface as a glacier of pure salt, moving at rates of between ten and one hundred metres per thousand years. Uplift would result from resultant mantle upwelling or asthenospheric diapirism. Reactive diapirism in Lower Jurassic shales may have contributed to the formation of a central uplift at base Cretaceous level. Origin Early 20th century: from Greek diapeirainein 'pierce through', from dia 'through' + peirainein (from peran 'pierce'). Definition of diapir in US English: diapir nounˈdīəˌpir Geology A domed rock formation in which a core of rock has moved upward to pierce the overlying strata. 〔地质〕底辟，挤入构造 Example sentencesExamples The established idea that granitoid magmas ascend through the continental crust as diapirs is being increasingly questioned by igneous and structural geologists. Mud diapirs, pockmarks and mud volcanoes are common features at seepage sites, where various pathways such as faults, other fractures and sedimentary discontinuities act as conduits for fluid seepage. Essentially, this means that over geological timescales, diapirs flow through the sub-surface. Various architectures connecting extrusive mud volcanic cones to their underlying source layer have been described, ranging from bulbous diapirs to steep diatremes and narrow vertical pipes. In more thickly sedimented slope and basin blocks, this fault and parallel faults to the south are marked by ENE alignments of elongate and shear mud diapirs or continuous, narrow mud walls. Origin Early 20th century: from Greek diapeirainein ‘pierce through’, from dia ‘through’ + peirainein (from peran ‘pierce’).
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