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单词 pyroclastics
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Examples ofpyroclastics

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These dark compressedpyroclasticshave been interpreted to be pumice.
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These plumes form red (from the short-chain sulfur) and black (from the silicatepyroclastics) deposits on the surface.
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Small intrusions andpyroclasticsof mafic composition are also present in the area.
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Subearialpyroclasticsare normally quartz-phyric and range up to in crosssection.
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As well as its main peak, the mountain includes many sub-peaks and contains felsicpyroclasticsand flows; typically altered and orange-weathering.
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Since the failure, which occurred some 7000 years ago, this has been partially filled by subsequent lavas andpyroclastics.
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Thepyroclasticsare prolonged, smooth to subangular with compositions ranging from rhyolitic to pumiceous and are generally no more than to in size.
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A coalesced volcanic cone, it formed aspyroclasticserupted and fountains spewed lava.
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These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.

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更新时间:2024/12/27 23:04:44