Definition of picrite in English:

picrite

noun ˈpɪkrʌɪtˈpikrīt

mass nounGeology

A dark basaltic igneous rock rich in olivine.
〔地质〕苦橄岩，辉石，橄榄岩
Example sentencesExamples
- The tholeiitic picrite basalts and basalts of the Mailaka sector have higher 87 Sr / 86 Sr and lower cNd 88 than the weakly alkaline basalts.
- Two series of igneous rocks have been found: tholeiitic, ranging from picrite basalt to basaltic andesite (to rhyodacites); mildly alkaline, with a more restricted compositional range (picrite basalts and basalts).
- It was more voluminous and ranged petrologically from basalts to picrites, showing very little evidence of continental contamination.
- The effects of depth and degree of melting are well illustrated by terrestrial basaltic magma types, which can be divided into three broad groups: basalts, komatiites, and picrites.
- Wholerock and chromite geochemistry suggests that these rocks have greatest affinity with picrites found on King Island, which have a latest Neoproterozoic age.

Derivatives

picritic

adjectivepɪˈkrɪtɪk

Geology

The picritic lavas and cumulates drilled in westernmost Victoria are compositionally very similar, with low TiO 2.
Example sentencesExamples
- Farther east, the abundance of rift tholeiites and associated high-temperature picritic lavas suggests proximity to break-up and formation as part of a Neoproterozoic SDRS package.
- Although partial melting of lherzolitic mantle can produce a range of basaltic magmas, it is also the case that basalts may be the end products of fractional crystallisation of primary picritic magmas.
- Cretaceous and lower Palaeocene sediments partly covered by Palaeocene-Eocene picritic and basaltic lavas are exposed in the Nuussuaq Basin on the island of Disko and the peninsulas of Nuussuaq and Svartenhuk.
- The nephelinites are conformably overlain by picrites and picritic basalts of the Letaba Formation, although in the southern Lebombo the picrites directly overlie the Clarens Formation.

Origin

Early 19th century: from Greek pikros 'bitter' + -ite¹.

Definition of picrite in US English:

picrite

nounˈpikrīt

Geology

A dark basaltic rock rich in olivine.
〔地质〕苦橄岩，辉石，橄榄岩
Example sentencesExamples
- It was more voluminous and ranged petrologically from basalts to picrites, showing very little evidence of continental contamination.
- Wholerock and chromite geochemistry suggests that these rocks have greatest affinity with picrites found on King Island, which have a latest Neoproterozoic age.
- The tholeiitic picrite basalts and basalts of the Mailaka sector have higher 87 Sr / 86 Sr and lower cNd 88 than the weakly alkaline basalts.
- The effects of depth and degree of melting are well illustrated by terrestrial basaltic magma types, which can be divided into three broad groups: basalts, komatiites, and picrites.
- Two series of igneous rocks have been found: tholeiitic, ranging from picrite basalt to basaltic andesite (to rhyodacites); mildly alkaline, with a more restricted compositional range (picrite basalts and basalts).

Origin

Early 19th century: from Greek pikros ‘bitter’ + -ite.

词汇	picrite
释义	Definition of picrite in English: picrite noun ˈpɪkrʌɪtˈpikrīt mass nounGeology A dark basaltic igneous rock rich in olivine. 〔地质〕苦橄岩，辉石，橄榄岩 Example sentencesExamples The tholeiitic picrite basalts and basalts of the Mailaka sector have higher 87 Sr / 86 Sr and lower cNd 88 than the weakly alkaline basalts. Two series of igneous rocks have been found: tholeiitic, ranging from picrite basalt to basaltic andesite (to rhyodacites); mildly alkaline, with a more restricted compositional range (picrite basalts and basalts). It was more voluminous and ranged petrologically from basalts to picrites, showing very little evidence of continental contamination. The effects of depth and degree of melting are well illustrated by terrestrial basaltic magma types, which can be divided into three broad groups: basalts, komatiites, and picrites. Wholerock and chromite geochemistry suggests that these rocks have greatest affinity with picrites found on King Island, which have a latest Neoproterozoic age. Derivatives picritic adjectivepɪˈkrɪtɪk Geology The picritic lavas and cumulates drilled in westernmost Victoria are compositionally very similar, with low TiO 2. Example sentencesExamples Farther east, the abundance of rift tholeiites and associated high-temperature picritic lavas suggests proximity to break-up and formation as part of a Neoproterozoic SDRS package. Although partial melting of lherzolitic mantle can produce a range of basaltic magmas, it is also the case that basalts may be the end products of fractional crystallisation of primary picritic magmas. Cretaceous and lower Palaeocene sediments partly covered by Palaeocene-Eocene picritic and basaltic lavas are exposed in the Nuussuaq Basin on the island of Disko and the peninsulas of Nuussuaq and Svartenhuk. The nephelinites are conformably overlain by picrites and picritic basalts of the Letaba Formation, although in the southern Lebombo the picrites directly overlie the Clarens Formation. Origin Early 19th century: from Greek pikros 'bitter' + -ite¹. Definition of picrite in US English: picrite nounˈpikrīt Geology A dark basaltic rock rich in olivine. 〔地质〕苦橄岩，辉石，橄榄岩 Example sentencesExamples It was more voluminous and ranged petrologically from basalts to picrites, showing very little evidence of continental contamination. Wholerock and chromite geochemistry suggests that these rocks have greatest affinity with picrites found on King Island, which have a latest Neoproterozoic age. The tholeiitic picrite basalts and basalts of the Mailaka sector have higher 87 Sr / 86 Sr and lower cNd 88 than the weakly alkaline basalts. The effects of depth and degree of melting are well illustrated by terrestrial basaltic magma types, which can be divided into three broad groups: basalts, komatiites, and picrites. Two series of igneous rocks have been found: tholeiitic, ranging from picrite basalt to basaltic andesite (to rhyodacites); mildly alkaline, with a more restricted compositional range (picrite basalts and basalts). Origin Early 19th century: from Greek pikros ‘bitter’ + -ite.
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