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单词 vitrinite
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Examples ofvitrinite

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Maceral maturity can be estimated by "vitrinitereflectance".
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Vitriniteforms diagenetically by the thermal alteration of lignin and cellulose in plant cell walls.
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Vitrinitemacerals when observed under the microscope show a boxlike, cellular structure, often with oblong voids and cavities which are likely the remains of plant stems.
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They are also used in materials science and biological research and for determining the energy content of coal and petroleum source rock by measuring thevitrinitereflectance.
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Fluid-inclusions technique for determining maximum temperature in calcite and its comparison to thevitrinitereflectance geothermometer.
From theCambridge English Corpus
Note thatvitrinitereflectance data tend to yield overestimates of denudation, whereas remnant subsidence data tend to yield underestimates.
From theCambridge English Corpus
Vitrinitereflectance, which typically demonstrates an exponential evolution of organic matter as a function of time, is the best organic indicator for thermal maturation.
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The highvitrinitecontent of the coal indicates a significant potential for coalbed methane production.
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The optical properties of semifusinite are very similar to those ofvitrinite.
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Thevitrinitegroup, which consists of various individualvitrinite"macerals", is the most common component of coals.
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The reflectance ofvitrinitewas first studied by coal explorationists attempting to diagnose the thermal maturity, or "rank", of coal beds.
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The thermal history of a basin is usually calibrated using thermal indicator data, includingvitrinitereflectance and fission tracks in the minerals apatite and zircon.
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Regardless,vitriniteis not soluble in water and could therefore only contaminate fire features in the stratum as particulate matter.
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They differ in that semifusinite displays a folded texture as compared tovitrinitewhich generally maintains its composed structure.
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Conversely, carbonates, evaporites and well-sorted sandstones have very lowvitrinitecontents.
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Vitrinitehas a shiny appearance resembling glass (vitreous).
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In minor scale it also consists ofvitrinite, inertinite, telalginite, and bitumen.
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Inertinites also displays higher reflectance thanvitrinite, except when approaching an anthracitic or graphite state.
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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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更新时间:2024/12/28 2:09:25