| 单词 | magnetite |
| 释义 | BETA Examples ofmagnetiteDictionary> Examples ofmagnetite magnetiteisn’t in the Cambridge Dictionary yet. You can help! Add a definition They also include evidence formagnetite(and/or chromite), other iron oxides and some clays. From theCambridge English Corpus This works well, although is a little unclear when a 'black' mineral likemagnetiteis viewed against the black background. From theCambridge English Corpus There are also abundant blebs of sulphides (chalcopyrite, pyrrhotite and pentlandite, inferred to have crystallized from homogeneous monosulphide globules), often enclosed by ilmenite andmagnetite. From theCambridge English Corpus The mechanisms by which magnetotactic bacteria synthesize intracellular chains of membrane-boundmagnetitecrystals (magnetosomes) are poorly understood. From theCambridge English Corpus This study concentrates on the latter which contain abundant chlorite-rich layers, commonly rich inmagnetiteand haematite grains. From theCambridge English Corpus The synthesis of single-domainmagnetitecrystals by numerous species raises the possibility that similar, conserved genes may control these biomineralization processes. From theCambridge English Corpus Themagnetite-free fraction was then passed through an isodynamic magnetic separator. From theCambridge English Corpus The remaining magnetites lack sufficient characteristics to constrain their origin. From theCambridge English Corpus As most of these minerals are not magnetic, it appears that themagnetiteand titanomagnetite grains are imbedded in larger sediment particles containing many minerals. From theCambridge English Corpus Ultimately, the origin of themagnetitecan be resolved. From theCambridge English Corpus The black bands contain aggregates ofmagnetitegrains that fill similar botryoid cells with hematite one. From theCambridge English Corpus The compositions of amphibole, plagioclase, clinopyroxene andmagnetiteare the actual electron microprobe analyses of the present phenocrysts. From theCambridge English Corpus This section is overlain by a 25-m-thick, discordant, medium-grained melanocratic gabbro that grades upward into 175 m ofmagnetitegabbro. From theCambridge English Corpus The groundmass is composed of fine-grained plagioclase, pyroxene, amphibole andmagnetite. From theCambridge English Corpus The main oxide minerals aremagnetite, ilmenite and chromite. From theCambridge English Corpus In the groundmass,magnetiteusually occurs as euhedral grains a few to several tens of microns in diameter. From theCambridge English Corpus They suggested that themagnetitecrystals were probably produced by a biogenic process and thus interpreted these results as evidence of life. 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. |
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