湖南涟邵煤田测水煤系沉积环境与聚煤规律-.研究

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1、中南大学硕士论文ABSTRACTLianyuan—-ShaoyangCoalfieldislocatedChangsha-ShaoyangfaultdepressionthecentralandwesternintheSouthChinafoldbelt．northtosouth．Itiswestprominentarcuatestructure山ataseriesofrelativelyClosedanticlineandShortaxissynclinecomposed，accompaniedbytheoverthm

2、stfault．overallistheNorthEast～NNEtrending．Lianyuan—ShaoyangCoalfieldisoneofthemajorcoalproductionbasesofHunanprovinceTheCeshuiCoaloftheEarlyCarboniferousisthemaincoal—bearingstratainthisareaIocalcoalreservesof山isareaisseriousshortageafterbeingdevelopmentandutiliz

3、edforyearsTherefore．thesedimentaryenvironmentsandcoalaccumulationruleontheCeshuiCoalstrataoftheEarlyCarboniferousonthearea，hasaguidingsignificancetofurtherdevelopthesystem，scientificresearchandanalysis．whichwillin山efuturetheregioncoalBasedonthecomprehensivecollec

4、tionandanalysisoftheresearchresultsofthepreviousgeologicaldata，thispaperpresentedthemethodsandprinciplesoftheapplicationofcoalbasinanalysisandcombinationofstratigraphy,sedimentology,petrologyandsequencestratigraphytheory．Lianyuan—ShaoyangCoalfieldEarlyCarbonifero

5、uscoal·-bearingstrataoftheCeshuiCoalrocktype．1ithologicalcharacteristicsandsedimentarystructureswereanalyzedindetailinthepaperconductedthedivisionofthedepositionsystemandthecomprehensiveThedepositionofthesedimentarysystemcharacteristicsandspatialdistributionlawwe

6、rerevealedinthepaperAnalysisresultsshownthatthecoalenvironmentofEarlyCarboniferousCeshuiCoalbarrierisland—lagoondepositionalsystems，tidalfiat，lagoon，tidalchannels，barrierdam，peatswamp．foreshoreoutsidethemuddycontinentalshelfandothertypesofsedimentaryfacieswerepea

7、tswamp．Coal—beatingstratigraphicsequencestratigraphic厅ameworkanddistributioncharacteristicswerepresentedinthepaperTheauthorpointedoatthatthedistributionofcoalSealTISinthe中南大学硕士论文sequencestratigraphicframework，andmadeapaleogeographicmapofthefacies．Finally,accordin

8、gtothestudyareaofthepaleo—tectonic，paleogeographic，paleoclimateandancientplantsthataretherelationshipbetweenandtheevolutionofthedepositionalenvironment，theauth