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单词 zircon
释义
zircon
noun[UorC]
uk
/ˈzɜː.kɒn/us
/ˈzɜ˞ː.kɑːn/
amineralin theformofcrystals(=regularshapes)from which thechemicalelementzirconiumisobtained:
锆石
Atinycrystalof zirconfoundinnorthwesternAustraliaisestimatedto be about 4.3billionyearsold.在澳大利亚西北部发现的一颗锆石小晶体据估计是在43亿年前形成的。
Zircons, madeprimarilyof theelementszirconium,oxygenandsilicon, areextremelyhard anddurable.锆石主要由锆、氧和硅等元素组成，非常坚硬耐磨。
picture of zircon
Reimphoto/iStock/Getty Images Plus/GettyImages
More examples
  • Zircon has atremendouscapacitytoresistbreakdownduringerosion,weathering,melting, and metamorphism.
  • Zircon isfoundmainlyin silica-richrockssuch asgranite.
  • Therelativeamountsofoxygenisotopesin the zirconspointsto thepresenceofwater.
SMART Vocabulary: related words and phrases
Geology: mineralogy
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  • silicon
See more results »
(Definition ofzirconfrom theCambridge Advanced Learner's Dictionary & Thesaurus© Cambridge University Press)

Examplesofzircon

zircon
53 isotope systematics and the provenance of detrital zircons of these different terrane assemblages, as they display distinct differences.
From theCambridge English Corpus
The analysed zircons are 150-200 m in length and have only a few cracks and inclusions.
From theCambridge English Corpus
All zircons show well-developed crystal zoning; many have cracks, few have inclusions.
From theCambridge English Corpus
Alternatively, zircons from the metagranites could be inherited.
From theCambridge English Corpus
Additionally, there are three other inheritedzirconpopulations.
From theCambridge English Corpus
Bothzirconand monazite are abundant in the rock.
From theCambridge English Corpus
The absence of severe rounding in this group of detrital zircons suggests a proximal source area.
From theCambridge English Corpus
At the upper part of the section rounded and weakly zoned zircons (type 3) also appear.
From theCambridge English Corpus
The zircons are clear and long-prismatic, and show minor rounding at their terminations.
From theCambridge English Corpus
The sample gave a small yield of < 100 m zircons.
From theCambridge English Corpus
In the lower unit, the zircons range in length from 50 to 300 microns and in the upper unit from 100 to 350 microns.
From theCambridge English Corpus
Nine fractions of zircons separated from the upper unit were also analysed.
From theCambridge English Corpus
The ion microprobe method is capable of dating 10-30 m sized domains within singlezirconcrystals.
From theCambridge English Corpus
Tiny grains ofzirconare found as an accessory mineral within plagioclase crystals in most zones of both layers.
From theCambridge English Corpus
Modernzircon-based age determinations are largely lacking for the members of the trans-suture suite of intrusions.
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/zircon##
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更新时间：2024/12/28 15:55:22