Spectroscopy and Spectral Analysis, Volume. 33, Issue 10, 2861(2013)
The Spectrum Studies of Structure Characteristics in Magma Contact Metamorphic Coal
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° and 42° 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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WU Dun, SUN Ruo-yu, LIU Gui-jian, YUAN Zi-jiao. The Spectrum Studies of Structure Characteristics in Magma Contact Metamorphic Coal[J]. Spectroscopy and Spectral Analysis, 2013, 33(10): 2861
Received: Jan. 22, 2013
Accepted: --
Published Online: Oct. 23, 2013
The Author Email: Dun WU (adam854621@163.com)