本文選題：白音華煤田 + 煤系礦產(chǎn)　； 參考：《煤炭學(xué)報(bào)》2016年02期

【摘要】：為研究煤中微量元素含量及分布特征,在白音華煤田開展了煤中微量元素測(cè)試分析。對(duì)白音華煤田4個(gè)礦區(qū)、3個(gè)層位所采集的50多件樣品的微量元素進(jìn)行測(cè)試分析,重點(diǎn)研究了各礦區(qū)煤炭中煤的顯微組分特征、煤中F,Cl,As等有害微量元素分布特征、Sb,Ag,Ge,Be,Co等24種微量元素的富集程度分析,并對(duì)煤中鍺的賦存狀態(tài)及成煤環(huán)境進(jìn)行了分析。結(jié)果表明:白音華煤田煤中As的含量較高,屬超高砷煤;白音華煤田二礦煤中Co,Cr,Ge,Ca,Li,V,La,Ce,Nd,Th,U等微量元素富集明顯,其中Ge,Ga含量均發(fā)現(xiàn)多處已達(dá)工業(yè)品味;白音華煤田煤中鍺被有機(jī)質(zhì)束縛,鍺元素在還原性環(huán)境下易于富集;由白音煤田煤中硼的示蹤物源及指示沉積環(huán)境可推定,成煤環(huán)境為淡水—半咸水沉積環(huán)境。
[Abstract]:In order to study the content and distribution of trace elements in coal, the trace elements in coal were tested and analyzed in Baiyinhua coalfield. The trace elements of more than 50 samples collected from 3 layers in 4 mining areas of Baiyinhua coalfield were tested and analyzed, and the maceral characteristics of coal in each mining area were studied emphatically. Distribution characteristics of harmful Trace elements in Coal the enrichment degree of 24 trace elements such as SB _ (B) Ag _ (G) GE _ (B) Bei Co and so on are analyzed. The occurrence state of germanium in coal and the coal forming environment are also analyzed. The results show that the content of as in the coal of Baiyinhua coalfield is relatively high and belongs to ultra-high arsenic coal, and that the trace elements such as Co-CrCr-GE-Ca-Li-Li-Li-Li-Li-Li-Li, La-Ce-NdTH-ThU are enriched obviously, among which the content of Geo Ga has reached industrial taste in many places, and the content of germanium in Baiyinhua coalfield is bound by organic matter, and the content of GE in Baiyinhua coalfield is restricted by organic matter. Germanium is easy to be enriched in reductive environment, and the source of boron tracer and the indicative sedimentary environment in Baiyin coal field can be inferred that the coal-forming environment is freshwater brackish water sedimentary environment.
【作者單位】： 中國(guó)煤炭地質(zhì)總局勘查研究總院;
【基金】：中國(guó)地質(zhì)調(diào)查“東北賦煤區(qū)煤系礦產(chǎn)資源綜合調(diào)查”資助項(xiàng)目(12120114012101)
【分類號(hào)】：P618.11
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本文編號(hào)：2056518