单词 siderite 释义 BETA

Examples ofsiderite

Dictionary> Examples ofsideritesideriteisn’t in the Cambridge Dictionary yet. You can help!Add a definitionLimonite/sideritenodules (up to 20 cm diameter) within sandstones are locally more abundant than in underlying units.From theCambridge English CorpusThis suggests the hematite crystals are not oxidation products ofsiderite, because pyrite is easily altered to goethite under an oxygenated atmosphere.From theCambridge English CorpusThis stage ofsideritecement is characterized with relatively rapid and irregular compositional zoning and minor dissolution phases.From theCambridge English CorpusMost of the samples selected were dominated by one of thesideritephases although a few contained mixtures of two dominant phases.From theCambridge English CorpusThe member consists of coals, claystones and siltstones rich insideriteconcretions, and three to four levels of sandstone, each 2-10 m thick.From theCambridge English CorpusTwo periods of dissolution occurred between precipitation of different stages ofsideritecement.From theCambridge English CorpusThe resultant products were unreactedsiderite, magnetite and pyrrhotite.From theCambridge English CorpusFigure 6a-d documents the transition zone of an inorganic, clay mineral-dominated layer to asideritelayer.From theCambridge English CorpusDuring dehydration, fractures at the top and the bottom of the algal layer and at the transition zone of thesideritelayer are formed.From theCambridge English CorpusOnly samples containing major amounts ofsideritethat lacked other carbonate cement types were selected for stable isotope analysis.From theCambridge English CorpusAttention is focused on thesiderite, and only a short description of the other diagenetic minerals is provided here.From theCambridge English CorpusThis paper suggests that tectonic activity can, by altering the hydraulic gradient, also influence pore water chemistry and lead to dissolution of cement, made clear by zoning withinsideritecrystals.From theCambridge English CorpusThe related ironstone beds contain low grade ooliticsideriteand chamosite ores which were worked commercially in the early 20th century.FromWikipediaThis example is from Wikipedia and may be reused under a CC BY-SA license.This process formedsideritein the sediments surrounding the remains, forming detailed casts of their structure.FromWikipediaThis example is from Wikipedia and may be reused under a CC BY-SA license.Associated minerals include biotite and other micas, chlorite group minerals, quartz, zircon, certain feldspars, analcime, anatase, brookite, rutile,siderite, and apatite.FromWikipediaThis example is from Wikipedia and may be reused under a CC BY-SA license.Associated minerals include metavivianite, ludlamite, pyrite,sideriteand pyrrhotite.FromWikipediaThis example is from Wikipedia and may be reused under a CC BY-SA license.An example of a mineral in iron-rich rock containing carbonates issideriteand an example of minerals in an iron-rich rock containing silicate is chamosite.FromWikipediaThis example is from Wikipedia and may be reused under a CC BY-SA license.It is made by phyllites, quartzites, porphyrys and limestones commonly metamorphosed tosideriteand magnesite.FromWikipediaThis example is from Wikipedia and may be reused under a CC BY-SA license.They consist of concentric inter-bedded cones of calcite or more rarely gypsum,sideriteor pyrite.FromWikipediaThis example is from Wikipedia and may be reused under a CC BY-SA license.

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