The relationship between methylated chromans and maturity of organic matter in the source rocks from Jianghan hypersaline basin
The distribution,the relative composition,and their variation of methylated chromans(MTTC) with maturation of organic matter in the source rocks from Mingjia 1 well,Jianghan hypersaline basin,have been analyzed and studied. There is a close relationship between the distribution of methylatd chromans...
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description | The distribution,the relative composition,and their variation of methylated chromans(MTTC) with maturation of organic matter in the source rocks from Mingjia 1 well,Jianghan hypersaline basin,have been analyzed and studied. There is a close relationship between the distribution of methylatd chromans and paleosalinity of depositional environment. In the Eq1-Eq3 source rocks deposited under hypersaline environment with lower Pr/Ph ratio,higher gammacerane index and abundant organic sulfur-containing compounds,methyl MTTC and dimethyl MTTC are main components,but in the Eq4 source rocks deposited non-hypersaline environment with relatively higher Pr/Ph ratio,lower gammacerane index and organic sulfur-containing compounds,trimethyl MTTC is a major compound in methylate chromans. Obviously,the distributions and the compositions of methylated chromans in the source rocks are in harmony with biomarker indicators indicating the paleaosalinity and redox of depositional environment. The relationship between the ratio of 5,8-dimethyl MTTC to 7,8-dimethyl MTTC(dimethyl MTTC ratio) and the maturity of organic matter in the source rocks from Mingjia 1 well has been discussed. The results show that dimethyl MTTC ratio increased with the burial depth and the maturation of organic matter in the source rocks,especially in immature level. It is noteworthy that this ratio is very susceptible to small variation in the maturity of organic matter in the source rocks when vitrinite reflectance Ro is less than 0.65%. It may imply that this ratio is a good and susceptible aromatic maturity indicator for the relative maturity of organic matter in immature source rocks. |
doi_str_mv | 10.1007/s11430-009-5018-4 |
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There is a close relationship between the distribution of methylatd chromans and paleosalinity of depositional environment. In the Eq1-Eq3 source rocks deposited under hypersaline environment with lower Pr/Ph ratio,higher gammacerane index and abundant organic sulfur-containing compounds,methyl MTTC and dimethyl MTTC are main components,but in the Eq4 source rocks deposited non-hypersaline environment with relatively higher Pr/Ph ratio,lower gammacerane index and organic sulfur-containing compounds,trimethyl MTTC is a major compound in methylate chromans. Obviously,the distributions and the compositions of methylated chromans in the source rocks are in harmony with biomarker indicators indicating the paleaosalinity and redox of depositional environment. The relationship between the ratio of 5,8-dimethyl MTTC to 7,8-dimethyl MTTC(dimethyl MTTC ratio) and the maturity of organic matter in the source rocks from Mingjia 1 well has been discussed. The results show that dimethyl MTTC ratio increased with the burial depth and the maturation of organic matter in the source rocks,especially in immature level. It is noteworthy that this ratio is very susceptible to small variation in the maturity of organic matter in the source rocks when vitrinite reflectance Ro is less than 0.65%. It may imply that this ratio is a good and susceptible aromatic maturity indicator for the relative maturity of organic matter in immature source rocks.</description><identifier>ISSN: 1674-7313</identifier><identifier>ISSN: 1006-9313</identifier><identifier>EISSN: 1869-1897</identifier><identifier>EISSN: 1862-2801</identifier><identifier>DOI: 10.1007/s11430-009-5018-4</identifier><language>eng</language><publisher>Heidelberg: SP Science in China Press</publisher><subject>basin ; Biomarkers ; chromans ; Crude oil ; depositional ; dimethyl ; Earth and Environmental Science ; Earth Sciences ; environment ; Geochemistry ; Geology ; hypersaline ; Jianghan ; matter ; Maturity ; methylated ; MTTC ; organic ; Organic matter ; ratio ; rock ; Rocks ; source ; Sulfur</subject><ispartof>Science China. Earth sciences, 2009-06, Vol.52 (S1), p.34-41</ispartof><rights>Science in China Press and Springer Berlin Heidelberg 2009</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c374t-21760d6491755364c782e015e7c3b17c63c82fd279ea1f2216830a38f85710e33</citedby><cites>FETCH-LOGICAL-c374t-21760d6491755364c782e015e7c3b17c63c82fd279ea1f2216830a38f85710e33</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttp://image.cqvip.com/vip1000/qk/60111X/60111X.jpg</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s11430-009-5018-4$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s11430-009-5018-4$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids></links><search><creatorcontrib>Bao, JianPing</creatorcontrib><creatorcontrib>Zhu, CuiShan</creatorcontrib><creatorcontrib>Ma, AnLai</creatorcontrib><title>The relationship between methylated chromans and maturity of organic matter in the source rocks from Jianghan hypersaline basin</title><title>Science China. Earth sciences</title><addtitle>Sci. China Ser. D-Earth Sci</addtitle><addtitle>SCIENCE CHINA Earth Sciences</addtitle><description>The distribution,the relative composition,and their variation of methylated chromans(MTTC) with maturation of organic matter in the source rocks from Mingjia 1 well,Jianghan hypersaline basin,have been analyzed and studied. There is a close relationship between the distribution of methylatd chromans and paleosalinity of depositional environment. In the Eq1-Eq3 source rocks deposited under hypersaline environment with lower Pr/Ph ratio,higher gammacerane index and abundant organic sulfur-containing compounds,methyl MTTC and dimethyl MTTC are main components,but in the Eq4 source rocks deposited non-hypersaline environment with relatively higher Pr/Ph ratio,lower gammacerane index and organic sulfur-containing compounds,trimethyl MTTC is a major compound in methylate chromans. Obviously,the distributions and the compositions of methylated chromans in the source rocks are in harmony with biomarker indicators indicating the paleaosalinity and redox of depositional environment. The relationship between the ratio of 5,8-dimethyl MTTC to 7,8-dimethyl MTTC(dimethyl MTTC ratio) and the maturity of organic matter in the source rocks from Mingjia 1 well has been discussed. The results show that dimethyl MTTC ratio increased with the burial depth and the maturation of organic matter in the source rocks,especially in immature level. It is noteworthy that this ratio is very susceptible to small variation in the maturity of organic matter in the source rocks when vitrinite reflectance Ro is less than 0.65%. It may imply that this ratio is a good and susceptible aromatic maturity indicator for the relative maturity of organic matter in immature source rocks.</description><subject>basin</subject><subject>Biomarkers</subject><subject>chromans</subject><subject>Crude oil</subject><subject>depositional</subject><subject>dimethyl</subject><subject>Earth and Environmental Science</subject><subject>Earth Sciences</subject><subject>environment</subject><subject>Geochemistry</subject><subject>Geology</subject><subject>hypersaline</subject><subject>Jianghan</subject><subject>matter</subject><subject>Maturity</subject><subject>methylated</subject><subject>MTTC</subject><subject>organic</subject><subject>Organic matter</subject><subject>ratio</subject><subject>rock</subject><subject>Rocks</subject><subject>source</subject><subject>Sulfur</subject><issn>1674-7313</issn><issn>1006-9313</issn><issn>1869-1897</issn><issn>1862-2801</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNp9kUFvGyEQhVdRIsVK8gNyQ43U26YMsAsco6hpU0XqJTkjjGe9pLvgAFblU_96sGypVQ_hAhq-92ZGr2mugd4CpfJLBhCctpTqtqOgWnHSLED1ugWl5Wl991K0kgM_b65yfqX18PrD5KL58zwiSTjZ4mPIo9-QJZbfiIHMWMZdreOKuDHF2YZMbFiR2ZZt8mVH4kBiWtvg3b5WMBEfSKl2OW6Tq67R_cpkqFLyw9uwHm0g426DKdvJByRLm324bM4GO2W8Ot4XzcvD1-f77-3Tz2-P93dPreNSlJaB7OmqFxpk1_FeOKkYUuhQOr4E6XruFBtWTGq0MDAGveLUcjWoTgJFzi-azwffTYpvW8zFzD47nCYbMG6z4UILppSu4Kf_wNe6TqizGUa11D0XXYXgALkUc044mE3ys007A9TsIzGHSEyNxOwjMaJq2EGTKxvWmP4afyS6OTYaY1i_Vd0_nSgXSjOm-DtSmppo</recordid><startdate>20090601</startdate><enddate>20090601</enddate><creator>Bao, JianPing</creator><creator>Zhu, CuiShan</creator><creator>Ma, AnLai</creator><general>SP Science in China Press</general><general>Springer Nature B.V</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>~WA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7TG</scope><scope>7UA</scope><scope>7XB</scope><scope>88I</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>F1W</scope><scope>GNUQQ</scope><scope>H96</scope><scope>HCIFZ</scope><scope>KL.</scope><scope>L.G</scope><scope>M2P</scope><scope>PCBAR</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>Q9U</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope></search><sort><creationdate>20090601</creationdate><title>The relationship between methylated chromans and maturity of organic matter in the source rocks from Jianghan hypersaline basin</title><author>Bao, JianPing ; Zhu, CuiShan ; Ma, AnLai</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c374t-21760d6491755364c782e015e7c3b17c63c82fd279ea1f2216830a38f85710e33</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>basin</topic><topic>Biomarkers</topic><topic>chromans</topic><topic>Crude oil</topic><topic>depositional</topic><topic>dimethyl</topic><topic>Earth and Environmental Science</topic><topic>Earth Sciences</topic><topic>environment</topic><topic>Geochemistry</topic><topic>Geology</topic><topic>hypersaline</topic><topic>Jianghan</topic><topic>matter</topic><topic>Maturity</topic><topic>methylated</topic><topic>MTTC</topic><topic>organic</topic><topic>Organic matter</topic><topic>ratio</topic><topic>rock</topic><topic>Rocks</topic><topic>source</topic><topic>Sulfur</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Bao, JianPing</creatorcontrib><creatorcontrib>Zhu, CuiShan</creatorcontrib><creatorcontrib>Ma, AnLai</creatorcontrib><collection>中文科技期刊数据库</collection><collection>中文科技期刊数据库-CALIS站点</collection><collection>中文科技期刊数据库-7.0平台</collection><collection>中文科技期刊数据库- 镜像站点</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Water Resources Abstracts</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Science Database (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Natural Science Collection</collection><collection>Earth, Atmospheric & Aquatic Science Collection</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>ProQuest Central Student</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>SciTech Premium Collection</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Science Database</collection><collection>Earth, Atmospheric & Aquatic Science Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central Basic</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Science China. Earth sciences</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Bao, JianPing</au><au>Zhu, CuiShan</au><au>Ma, AnLai</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The relationship between methylated chromans and maturity of organic matter in the source rocks from Jianghan hypersaline basin</atitle><jtitle>Science China. Earth sciences</jtitle><stitle>Sci. China Ser. D-Earth Sci</stitle><addtitle>SCIENCE CHINA Earth Sciences</addtitle><date>2009-06-01</date><risdate>2009</risdate><volume>52</volume><issue>S1</issue><spage>34</spage><epage>41</epage><pages>34-41</pages><issn>1674-7313</issn><issn>1006-9313</issn><eissn>1869-1897</eissn><eissn>1862-2801</eissn><abstract>The distribution,the relative composition,and their variation of methylated chromans(MTTC) with maturation of organic matter in the source rocks from Mingjia 1 well,Jianghan hypersaline basin,have been analyzed and studied. There is a close relationship between the distribution of methylatd chromans and paleosalinity of depositional environment. In the Eq1-Eq3 source rocks deposited under hypersaline environment with lower Pr/Ph ratio,higher gammacerane index and abundant organic sulfur-containing compounds,methyl MTTC and dimethyl MTTC are main components,but in the Eq4 source rocks deposited non-hypersaline environment with relatively higher Pr/Ph ratio,lower gammacerane index and organic sulfur-containing compounds,trimethyl MTTC is a major compound in methylate chromans. Obviously,the distributions and the compositions of methylated chromans in the source rocks are in harmony with biomarker indicators indicating the paleaosalinity and redox of depositional environment. The relationship between the ratio of 5,8-dimethyl MTTC to 7,8-dimethyl MTTC(dimethyl MTTC ratio) and the maturity of organic matter in the source rocks from Mingjia 1 well has been discussed. The results show that dimethyl MTTC ratio increased with the burial depth and the maturation of organic matter in the source rocks,especially in immature level. It is noteworthy that this ratio is very susceptible to small variation in the maturity of organic matter in the source rocks when vitrinite reflectance Ro is less than 0.65%. It may imply that this ratio is a good and susceptible aromatic maturity indicator for the relative maturity of organic matter in immature source rocks.</abstract><cop>Heidelberg</cop><pub>SP Science in China Press</pub><doi>10.1007/s11430-009-5018-4</doi><tpages>8</tpages></addata></record> |
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subjects | basin Biomarkers chromans Crude oil depositional dimethyl Earth and Environmental Science Earth Sciences environment Geochemistry Geology hypersaline Jianghan matter Maturity methylated MTTC organic Organic matter ratio rock Rocks source Sulfur |
title | The relationship between methylated chromans and maturity of organic matter in the source rocks from Jianghan hypersaline basin |
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