45371.海相碳酸鹽巖層系熱史恢復——以川東北地區(qū)為例

1、中國石油大學（北京）碩士學位論文海相碳酸鹽巖層系熱史恢復——以川東北地區(qū)為例姓名：王小芳申請學位級別：碩士專業(yè)：礦產(chǎn)普查與勘探指導教師：邱楠生20080501ThermalHistoryReconstructionofMarineCarbonateStrata：ACaseStudyfromNortheastofSichuanBasinAbstructThepalaeotemperatureindexiSoneofthemostimpor

2、tantmethodstoreconstructthethermalhistoryofsedimentarybasinsHoweverthereconstructiOllofthermalhistoryandhydrocarbongenerationhistoryofhighly／overmaturecarbonatestrataintheLowerPaleozoichaslongbeenadifficultproblemforlack

3、ofsuitablepalaeotemperatureindexwhichhasobstructedtheoilandgasexplorationinthemarinecarbonateareasinChinaThisPaperreconstructesthethermalhistoryofNortheastofSichuanBasinusingtwokindsofpalaeotemperatureindexwhicharevitrin

4、itereflectance(Ro)andbitumenreflectance(1屯)Meanwhilethispaperstudiesthepossibilityofillitecrystallinity(IC)aspalaeotemperatureindexinmarinecarbonatestrataThequantitativerelationshipbetweenillitecrystallinity(IC)andvitrin

5、itereflectance(no)hasbeenestablishedTheresultofreconstructingthethermalhistoryofNortheastofSichuanbasinshowsthatthePaleoheatflowwas535mW／m2attheMiddleSilurianandincreasingcontinuouslyatthetimefromtheMiddleSiluriantothebe

6、ginningoftheLatePermian，anduptothemaximum(65，3mW／m2)atthebeginningoftheLatePermianthenitdecreasedrapidlyanddownto50。3心弧|m1atearlyTriassicanddecreasedgraduallyfromearlyTriassictonowadays(44mW／mz)Keywords：CarbonateThermalh