山東聊城地區(qū)阿城鎮(zhèn)煤田二疊系生物群及其地層劃分.pdf

1、分類號：墜一UDC：——學位論文密級：公丌單位代碼：】0424山東聊城地區(qū)阿城鎮(zhèn)煤田二疊系生物群及其地層劃分賈強申請學位級別：亟堂焦指導教師姓名：王塑筻專業(yè)名稱：直生物量絲層堂職稱：熬援山東科技大學二00五年六月山東科技大學碩士學位論文摘要ABSTRACTAspartoftheNorth—ChinaCoalAccumulateAreaAChengTown，whichlocatesintheLiaoChengCityShandongPro

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4、taboundaryinthelatePaleozoicCoal—bearingstrataintheAChengTown，LiaochengCityTheStratigraphySequencewillbestudiedandtheboundarybetweenthePermianandCarboniferouswillbeconfirmedinordertocorrelatedwiththeinternationalusagevia

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