Definition of diatreme in English:

diatreme

nounˈdʌɪətriːmˈdīəˌtrēm

Geology

A long vertical pipe or plug formed when gas-filled magma forced its way up through overlying strata.
〔地质〕火山道
Example sentencesExamples
- 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.
- Lower crustal garnet granulite xenoliths from beneath the Kola-Karelian domain of the Fennoscandian Shield were brought to the surface in Devonian lamprophyre diatremes.
- The only known igneous rocks in the area are Permian periodotite and lamprophyre dikes as well as diatremes of ultramafic composition associated with the Fluorite district.
- To date, the only described mantle xenoliths from NW Namibia occur in an alnoite diatreme emplaced in the Mesozoic Okenyenya alkaline complex.
- The Sloan deposits proved to be uneconomic and were closed; however, the Kelsey Lake diatremes in Colorado opened in 1996 with high expectations.

Origin

Early 20th century: from dia- 'through' + Greek trēma 'perforation'.

Definition of diatreme in US English:

diatreme

nounˈdīəˌtrēm

Geology

A long vertical pipe or plug formed when gas-filled magma forced its way up through overlying strata.
〔地质〕火山道
Example sentencesExamples
- 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.
- Lower crustal garnet granulite xenoliths from beneath the Kola-Karelian domain of the Fennoscandian Shield were brought to the surface in Devonian lamprophyre diatremes.
- The Sloan deposits proved to be uneconomic and were closed; however, the Kelsey Lake diatremes in Colorado opened in 1996 with high expectations.
- To date, the only described mantle xenoliths from NW Namibia occur in an alnoite diatreme emplaced in the Mesozoic Okenyenya alkaline complex.
- The only known igneous rocks in the area are Permian periodotite and lamprophyre dikes as well as diatremes of ultramafic composition associated with the Fluorite district.

Origin

Early 20th century: from dia- ‘through’ + Greek trēma ‘perforation’.

单词	diatreme
释义	Definition of diatreme in English: diatreme nounˈdʌɪətriːmˈdīəˌtrēm Geology A long vertical pipe or plug formed when gas-filled magma forced its way up through overlying strata. 〔地质〕火山道 Example sentencesExamples 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. Lower crustal garnet granulite xenoliths from beneath the Kola-Karelian domain of the Fennoscandian Shield were brought to the surface in Devonian lamprophyre diatremes. The only known igneous rocks in the area are Permian periodotite and lamprophyre dikes as well as diatremes of ultramafic composition associated with the Fluorite district. To date, the only described mantle xenoliths from NW Namibia occur in an alnoite diatreme emplaced in the Mesozoic Okenyenya alkaline complex. The Sloan deposits proved to be uneconomic and were closed; however, the Kelsey Lake diatremes in Colorado opened in 1996 with high expectations. Origin Early 20th century: from dia- 'through' + Greek trēma 'perforation'. Definition of diatreme in US English: diatreme nounˈdīəˌtrēm Geology A long vertical pipe or plug formed when gas-filled magma forced its way up through overlying strata. 〔地质〕火山道 Example sentencesExamples 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. Lower crustal garnet granulite xenoliths from beneath the Kola-Karelian domain of the Fennoscandian Shield were brought to the surface in Devonian lamprophyre diatremes. The Sloan deposits proved to be uneconomic and were closed; however, the Kelsey Lake diatremes in Colorado opened in 1996 with high expectations. To date, the only described mantle xenoliths from NW Namibia occur in an alnoite diatreme emplaced in the Mesozoic Okenyenya alkaline complex. The only known igneous rocks in the area are Permian periodotite and lamprophyre dikes as well as diatremes of ultramafic composition associated with the Fluorite district. Origin Early 20th century: from dia- ‘through’ + Greek trēma ‘perforation’.
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