In geology, a cryptoexplosion structure (or cryptovolcanic structure) is an explosion of unknown cause. The term is now largely obsolete. It was once commonly used to describe sites where there was geological evidence of a large-scale explosion within the Earth's crust, but no definitive evidence for the cause such as normal volcanic rocks. These sites are usually circular with signs of anomalous rock deformation contrasting with the surrounding region, and often showing evidence that crustal material had been uplifted and/or blown outwards. The assumption was that some unusual form of volcanism, or a gas explosion originating within the crust, was the cause. The use of the term went away with the rise of the science of impact crater recognition in the late 20th century. Most structures de
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| - Criptoexplosió (ca)
- Cryptoexplosion (en)
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| - El terme criptoexplosió (o estructura criptovolcànica) significa una explosió de causa desconeguda. Actualment aquest terme està en gran part obsolet. Va ser utilitzat habitualment per descriure llocs on hi havia proves geològiques d'una explosió a gran escala dins de l'escorça terrestre, però no hi havia una evidència definitiva de la causa com passa amb les roques volcàniques normals. Aquests llocs solen ser circulars, amb signes de deformació anòmala de les roques que contrasten amb la regió circumdant, i que sovint mostren evidències que el material escorçat s'havia aixecat i / o volat cap a fora. La hipòtesi era que hi havia una causa insòlita de vulcanisme, o una explosió de gas originària de l'escorça. (ca)
- In geology, a cryptoexplosion structure (or cryptovolcanic structure) is an explosion of unknown cause. The term is now largely obsolete. It was once commonly used to describe sites where there was geological evidence of a large-scale explosion within the Earth's crust, but no definitive evidence for the cause such as normal volcanic rocks. These sites are usually circular with signs of anomalous rock deformation contrasting with the surrounding region, and often showing evidence that crustal material had been uplifted and/or blown outwards. The assumption was that some unusual form of volcanism, or a gas explosion originating within the crust, was the cause. The use of the term went away with the rise of the science of impact crater recognition in the late 20th century. Most structures de (en)
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| - El terme criptoexplosió (o estructura criptovolcànica) significa una explosió de causa desconeguda. Actualment aquest terme està en gran part obsolet. Va ser utilitzat habitualment per descriure llocs on hi havia proves geològiques d'una explosió a gran escala dins de l'escorça terrestre, però no hi havia una evidència definitiva de la causa com passa amb les roques volcàniques normals. Aquests llocs solen ser circulars, amb signes de deformació anòmala de les roques que contrasten amb la regió circumdant, i que sovint mostren evidències que el material escorçat s'havia aixecat i / o volat cap a fora. La hipòtesi era que hi havia una causa insòlita de vulcanisme, o una explosió de gas originària de l'escorça. L'ús del terme va augmentar amb la ciència del reconeixement dels cràters d'impacte a finals del segle xx. La majoria de les estructures descrites com a criptoexplosions van resultar ser cràters d'impacte erosionats, provocats per l'impacte dels meteorits. Actualment, els geòlegs ignoren les teories anteriors sobre la criptoexplosió. (ca)
- In geology, a cryptoexplosion structure (or cryptovolcanic structure) is an explosion of unknown cause. The term is now largely obsolete. It was once commonly used to describe sites where there was geological evidence of a large-scale explosion within the Earth's crust, but no definitive evidence for the cause such as normal volcanic rocks. These sites are usually circular with signs of anomalous rock deformation contrasting with the surrounding region, and often showing evidence that crustal material had been uplifted and/or blown outwards. The assumption was that some unusual form of volcanism, or a gas explosion originating within the crust, was the cause. The use of the term went away with the rise of the science of impact crater recognition in the late 20th century. Most structures described as cryptoexplosions turned out to be eroded impact craters, caused by the impact of meteorites. Today geologists discount former cryptoexplosion theories. (en)
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