[The spectrum studies of structure characteristics in magma contact metamorphic coal].
Guang Pu Xue Yu Guang Pu Fen Xi
; 33(10): 2861-4, 2013 Oct.
Article
em Zh
| MEDLINE
| ID: mdl-24409751
ABSTRACT
The structural parameters evolution of coal due to the influence of intrusions of hot magma was investigated and analyzed. X-ray diffraction and laser confocal microscope Raman spectroscopy were used to test and analyze 4 coal samples undergoing varying contact-metamorphism by igneous magmas in borehole No. 13-4 of Zhuji coal mine, Huainan coalfield. The result showed that coal XRD spectrum showed higher background intensity, with the 26 degrees and 42 degrees nearby apparent graphite diffraction peak. Two significant vibration peaks of coal Raman spectra were observed in the 1 000-2 000 cm(-1) frequency range broad "D" peak at 1 328-1 369 cm(-1) and sharp "G" peak at 1 564-1 599 cm(-1). With the influence of magma intrusion, the relationship between coal structural parameters and coal ranks was excellent.
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Base de dados:
MEDLINE
Idioma:
Zh
Ano de publicação:
2013
Tipo de documento:
Article