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单词 pyroclastic
释义
pyroclastic
adjective
geologyspecialized
uk
/ˌpaɪ.rəˈklæs.tɪk/us
/ˌpaɪ.rəˈklæs.tɪk/
consisting of orrelatingtosmallpiecesofrockfrom avolcano:
由火成碎屑组成的；火成碎屑岩的
In 1902, on theCaribbeanislandof Martinique, asinglepyroclasticflowkilledmore than 29,000people.1902年，在加勒比海的马提尼克岛，一次火成碎屑流就造成了29000多人死亡。
Rocks likepumice, which areejectedasbroken,solidfragmentsratherthan inliquidform, areknownas pyroclasticrocks.像浮石这样以碎裂的固体碎片而不是液体形式喷出的岩石被称为火成碎屑岩。
SMART Vocabulary: related words and phrases
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Geology - general words
(Definition ofpyroclasticfrom theCambridge Advanced Learner's Dictionary & Thesaurus© Cambridge University Press)

Examplesofpyroclastic

pyroclastic
The isolated exposures of the accretionary lapilli-bearing facies along the coastline may alternatively record shoreline or water interaction ofpyroclasticflows.
From theCambridge English Corpus
Pyroclasticproducts are widespread and include lapilli tuff, lithic tuff, agglomerate and pyroclastic breccia; compositionally similar lava flows are massive or blocky.
From theCambridge English Corpus
The rhyolite has the form of a variably welded and massive, crystal-rich ignimbrite and associated non-weldedpyroclasticdeposits.
From theCambridge English Corpus
Nevertheless, the profusion ofpyroclasticdeposits signifies a major input to the volcanic-sedimentary record derived from subaerial volcanism.
From theCambridge English Corpus
Papers deal with a range of natural systems, including siliciclastic turbidity cur rents and debris flows,pyroclasticdensity cur rents and avalanches.
From theCambridge English Corpus
This memoir is set to become a benchmark publication in physical volcanology and the starting point for future research onpyroclasticdensity cur rents.
From theCambridge English Corpus
Nopyroclasticlithic components were found in primary deposits.
From theCambridge English Corpus
This lithofacies is thought to represent deposition from highly turbulent flow deposits with high rates of fallout resulting frompyroclasticflows entering a shallow sea.
From theCambridge English Corpus
On the western side of the edifice, two lava flows cover thepyroclasticflows and there is no palaeosol between them.
From theCambridge English Corpus
These mantling relationships argue against an erosional origin for the bedforms by laterpyroclasticflows.
From theCambridge English Corpus
It forms the floor of many barrancos, possibly concealing a considerable underlyingpyroclasticsequence.
From theCambridge English Corpus
Pyroclasticcur rent direction was towards the viewer.
From theCambridge English Corpus
Precisely what goes on inpyroclasticdensity cur rents to produce that diversity has been puzzling volcanologists for decades.
From theCambridge English Corpus
The first chapter defines the aims, gives an overview of relevant recent research and introduces central concepts relating topyroclasticdensity cur rents.
From theCambridge English Corpus
In my opinion, this memoir is essential reading for anyone serious about explosive eruptions,pyroclasticdensity cur rents and ignimbrites.
From theCambridge English Corpus
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.
#https://dictionary.cambridge.org//dictionary/english/pyroclastic##
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更新时间：2024/12/27 23:01:44