vitrinite


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vitrinite

[′vi·trə‚nīt]
(geology)
A maceral group that is rich in oxygen and composed of humic material associated with peat formation; characteristic of vitrain.
References in periodicals archive ?
The component variation of terrigenous organic matter and the sum of vitrinite, inertinite, sporinite, resinite, cutinite, fluorinite, and alginite (the sum of lamalginite and telalginite, Table 2) are plotted respectively in Figure 2c and Figure 3c-d.
Geolmage is CRAIC Technologies' newest Vitrinite Reflectance Measurement System and is designed to determine the grade of coal and coke by vitrinite reflectance per the ISO 7404-5 and ASTM D2798 standards.
Synrift to early postrift basin-scale groundwater history of the Newark basin based on surface and borehole vitrinite reflectance data.
ASTM Annual Book of Standards, (2004), Standard test method for microscopic determination of the reflectance of vitrinite in a polished specimen of coal.
THERMAL MATURATION STUDY OF KEROGEN IN THE COAL SEAMS OF THE GUADUAS FORMATION, EASTERN CORDILLERA (COLOMBIA), USING VITRINITE REFLECTANCE, ROCK EVAL PIROLISIS, NUCLEAR MAGNETIC RESONANCE AND PROXIMAL ANALYSIS
Coal resources at Makhado contain a high proportion of vitrinite.
Coking coal produced from the North Barito Basin is vitrinite rich and can offset this drop.
Generally, softness of coal increases with increasing vitrinite content and decreasing micronite and liptinite macerals.
New coal from the developing Rangles formation of Central Queensland has lower vitrinite and higher phosphorus levels than coal previously mined in the Bowen Basin, while coal from Mozambique has high ash and a bit of phosphorus.