| 词汇 | banded-iron-formation |
| 释义 | BETA banded iron formationcollocation in Englishmeanings of ironand formationThese words are often used together. Click on the links below to explore the meanings. iron noun uk /aɪən/ us /aɪrn/ a chemical element that is a common greyish-coloured metal. It is strong, used in making steel, and exists in very small amounts ... See more at iron formation noun uk /fɔːˈmeɪ.ʃən/ us /fɔːrˈmeɪ.ʃən/ the way something is naturally made or the way it has ... See more at formation Examples of banded iron formationbanded iron formation Microstructures in a bandedironformation the variations that took place in the conditions of deformation and hence the deformation processes. Deformation partitioning during folding of bandedironformation. The mountaintop consists of bandedironformation with alternating bands of metachert and magnetite. The bedrock consists mainly of amphibolites, metacherts and bandedironformation. The most abundant rock types are quartzite and bandedironformation, with subordinate metamorphic gneisses, metaconglomerates and pelitic to semi-pelitic quartz-muscovite schists. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The rock is mainly gneisses, granulites, migmatites, amphibolites and bandedironformation, intruded by basis and ultra-basic bodies. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The supracrustal sequence contains layers rich in iron and silica, which are variously interpreted as bandedironformation, chemical sediments from submarine hot springs, or hydrothermal vein deposits. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Huge deposits of hematite are found in banded iron formations. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In addition to the low grade metamorphic banded iron formations it has also been reported as an alteration mineral associated with sulfide bearing veins. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Nearly pure hematite is present in some metamorphosed banded iron formations. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Greenalite occurs as a primary phase in banded iron formations. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It occurs in weathered banded iron formations, metamorphosed manganese ore bodies and hydrothermal ore environments. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These iron compounds precipitated from the sea water in varying proportions with chert, producing banded-iron formations. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Large deposits of iron are found in banded iron formations. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The results of the impact affected concentrations of dissolved oxygen in the sea; the accumulation of banded-iron formations suddenly ended. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. 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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