云南保山栗柴坝组碳酸盐岩地球化学特征及环境意义
|
摘要
云南保山熊洞村栗柴坝组地层(S_(2-3)l)其底部与早志留世仁和桥组(S_1r)整合接触,顶部与早泥盆世向阳寺组(D_1x)整合接触,地层沉积较连续,整体表现出混合沉积的特征。以此剖面为基础,连续采集碳酸盐岩样品24个,根据其显微特征、元素相关性、组份含量及相关元素的比值特征,探讨了研究区碳酸盐岩沉积地球化学特征与古环境意义。研究表明:①样品中Sr与CaO、SiO_2、Al_2O_3和K_2O等氧化物之间,以及各氧化物相互之间具有密切相关性,反映了栗柴坝组不同沉积阶段陆源组份与方解石矿物之间的相互作用关系。②通过对碳酸盐岩中元素含量以及相关元素比值的垂向分布特征分析,如Sr/Ba、Mn/Fe和V/Ni等,对栗柴坝组不同沉积阶段进行了古水深、古盐度和古气候等方面的研究,数据表明栗柴坝组各时期沉积环境差异显著。③岩石微观特征和元素地球化学特征所反映的沉积环境具有一致性。对岩石地球化学特征的研究有益于古沉积环境恢复和古气候的判别与重建。
The bottom of Lichaiba formation in xiongdong village is conformable contact with early Silurian Renheqiao group,the top is conformable contact with early Devonian Xiangyangsi group,and the stratum in this area is continuous,shows mixed sedimentary characteristic.This study discussed the depositional geochemistry characteristics and the palaeo sedimentary environment significance of carbonate rock in the Silurian Lichaiba formation,in Baoshan region.Based on the study of microscopic characteristics,regional geological background and the geochemical analyses of 24 carbonate rock samples,the results indicated:① Sr and CaO in carbonates positively correlated with each other;CaO remarkably negatively correlated with Al_2O_3,K_2O,SiO_2,V,TiO_2;It reflects the interaction between the terrestrial component and the mineral calcite at different stages of deposition;②Through the analysis of element content and ratio in the vertical direction,for example Sr/ Ba、Mn/ Fe and V/Ni,we have done some research on ancient seawater deep,ancient salinity and ancient climate in different deposition phase of Lichaiba group;③What the microscopic features and geochemical characteristics of the rocks reflect have good consistency.The study on the geochemical characteristics is beneficial to the identification and reconstruction of palaeoenvironment and palaeoclimate.
The bottom of Lichaiba formation in xiongdong village is conformable contact with early Silurian Renheqiao group,the top is conformable contact with early Devonian Xiangyangsi group,and the stratum in this area is continuous,shows mixed sedimentary characteristic.This study discussed the depositional geochemistry characteristics and the palaeo sedimentary environment significance of carbonate rock in the Silurian Lichaiba formation,in Baoshan region.Based on the study of microscopic characteristics,regional geological background and the geochemical analyses of 24 carbonate rock samples,the results indicated:① Sr and CaO in carbonates positively correlated with each other;CaO remarkably negatively correlated with Al_2O_3,K_2O,SiO_2,V,TiO_2;It reflects the interaction between the terrestrial component and the mineral calcite at different stages of deposition;②Through the analysis of element content and ratio in the vertical direction,for example Sr/ Ba、Mn/ Fe and V/Ni,we have done some research on ancient seawater deep,ancient salinity and ancient climate in different deposition phase of Lichaiba group;③What the microscopic features and geochemical characteristics of the rocks reflect have good consistency.The study on the geochemical characteristics is beneficial to the identification and reconstruction of palaeoenvironment and palaeoclimate.
引文
董桂玉,陈洪德,何幼斌,秦志勇,罗进雄.2007.陆源碎屑与碳酸盐混合沉积研究中的几点思考.地球科学进展,22(9):931~939.
范春花,蒲仁海,漆立新,韩强.2007.塔河地区志留系的对比.地质论评,53(1):1~5.
冯进来,胡凯,曹剑,陈琰,王龙刚.2011.陆源碎屑与碳酸盐混积岩及其油气地质意义.高校地质学报,17(2):297~307.
何宏,彭苏萍,邵龙义.2004.巴楚寒武—奥陶系碳酸盐岩微量元素及沉积环境.新疆石油地质,25(6):631~633.
焦养泉,吕新彪,王正海,王敏芳.2004.从沉积到成岩两种截然不同的地质环境——吐哈盆地砂岩型铀矿研究实例.地球科学,29(5):615~620.
经雅丽,张克信,林启祥,朱云海,王治平.2005.浙江长兴煤山下三叠统和龙山组、南陵湖组沉积地球化学特征与古环境意义.地质科技情报,24(1):35~40.
刘超,陆刚,张喜,周府生,黄祥林,杜远生.2014.桂西北天峨孤立碳酸盐岩台地晚古生代沉积特征与演化.地质论评,60(1):55~70.
刘智荣.2007.贵州南部泥盆系层序地层划分和层序地层格架的建立.地质通报,26(2):206~214.
毛玲玲,伊海生,季长军,夏国清.2014.柴达木盆地新生代湖相碳酸盐岩岩石学及碳氧同位素特征.地质科技情报,33(1):41~48.
梅冥相,高金汉,李东海,孟庆芬,易定红.2003.黔桂地区泥盆系层序地层格架及相对海平面变化.沉积学报,21(2):298~306.
牟保磊.1999.元素地球化学.北京:北京大学出版社,27~30.
王宏,林方成,李兴振,施美凤,刘朝基,石洪召.2012.缅甸中北部及邻区构造单元划分及新特提斯构造演化.中国地质,39(4):912~922.
王随继,黄杏珍,妥进才,邵红舜,王寿庆,何祖荣.1997.泌阳凹陷核桃园组微量元素演化特征及其古气候意义.沉积学报,15(1):65~70.
汪凯明,罗顺社.2009.燕山地区中元古界高于庄组和杨庄组地球化学特征及环境意义.矿物岩石地球化学通报,28(4):356~364
熊小辉,肖加飞.2011.沉积环境的地球化学示踪.地球与环境,39(3):405~414.
熊永强,耿新华,赵青芳,刘金萍,王彦美,耿安松.2006.济阳坳陷下古生界碳酸盐岩的分子有机地球化学特征.地质论评,52(1):132~136.
杨振宇,沈渭洲,郑连弟.2009.广西来宾蓬莱滩二叠纪瓜德鲁普统—乐平统界线剖面元素和同位素地球化学研究及地质意义.地质学报,83(1):1~14.
杨永剑,刘家铎,田景春,孟万斌,张翔,祝贺.2011.塔里术盆地上奥陶统桑塔木组混合沉积特征及控制因素.地质论评,57(2):185~191.
杨瑞东.2008.贵阳地区碳酸盐岩风化红粘土剖面稀土、微量元素分布特征.地质论评,54(3):409~418
云南省地质矿产局.1990.云南省区域地质志.北京:地质出版社,100~104
周义平,任友谅.1994.滇东黔西晚二叠世煤系中火山灰蚀变黏土岩的元素地球化学特征.沉积学报,12(2):123~132.
张锦泉,叶红专.1989.论碳酸盐与陆源碎屑的混合沉积.成都地质学院学报,16(2):89~92.
张海全,许效松,刘伟,门玉澎.2013.中上扬子地区晚奥陶世~早志留世岩相古地理演化与黑色页岩的关系.沉积与特提斯地质,33(2):17~24.
张远志,张定辉,刘世荣.1996.云南省岩石地层.武汉:中国地质大学出版社,1~366.
Brasier A T,Martin A P,Melezhik V A,Prave A R,Condon D J,Fallick A E.2013.Earth's earliest global glaciation?Carbonate geochemistry and geochronology of the Polisarka Sedimentary Formation,Kola Peninsula,Russia.Precambrian Research,235:278~294.
El-Tabakh M,Mory A,Schreiber B C,Yasin R.2004.Anhydrite cements after dolomitization of shallow marine Silurian carbonates of the Gascoyne Platform,Southern Carnarvon Basin,Western Australia.Sedimentary Geology,164(1):75~87.
Marshall J D.1992.Climatic and oceanographic isotopic signals from the carbonate rock record and their preservation.Geological magazine,129(2):143~160.
Moore G T,Jacobson S R,Ross C A.1994.A paleoclimate simulation of the Wenlockian(Late Early Silurian)world using a general circulation model with implications for early land plant paleoecology.Palaeogeography,palaeoclimatology,palaeoecology,110(1):115~144.
Munnecke A,Calner M,Harper D A T.2010.How does sea level correlate with sea-water chemistry?A progress report from the Ordovician and Silurian.Palaeogeography,Palaeoclimatology,Palaeoecology,296(3):213~216.
Porebska E,Kozlowska-Dawidziuk A,,Masiak M.2004.The lundgreni event in the Silurian of the East European Platform,Poland.Palaeogeography,Palaeoclimatology,Palaeoecology,213(3):271~294.
Refsnider K A,Miller G H,Fogel M L,Frechette,B,Bowden R,Andrews J T,Fanner G L.2014.Subglacially precipitated carbonates record geochemical interactions and pollen preservation at the base of the Laurentide Ice Sheet on central Baffin Island,eastern Canadian Arctic.Quaternary Research,81(1):94~105.
Rudnick R L,McDonough W F,Chappell B W.1993.Carbonatite metasomatism in the northern Tanzanian mantle:petrographic and geochemical characteristics.Earth and Planetary Science Letters,114(4):463~475.
Samtleben C,Munnecke A,Bickert T,Ptzold J.2001.Shell succession,assemblage and species dependent effects on the C/O~isotopic composition of brachiopods:examples from the Silurian of Gotland.Chemical Geology,175(1):61~107.
Saltzman M R.2002.Carbon isotopeδ13C stratigraphy across the Silurian—Devonian transition in North America:evidence for a perturbation of the global carbon cycle.Palaeogeography,Palaeoclimatology,Palaeoecology,187(1):83~100.
Tang H S,Chen Y J,Santosh M,Zhong H,Yang T.2013.REE geochemistry of carbonates from the Guanmenshan Formation,Liaohe Group,NE Sino-Korean Craton:implications for seawater compositional change during the Great Oxidation Event.Precambrian Research,227:316~336.
①云南省地质局第一区测队.1966.潞西幅1:20万区域地质调查报告.
范春花,蒲仁海,漆立新,韩强.2007.塔河地区志留系的对比.地质论评,53(1):1~5.
冯进来,胡凯,曹剑,陈琰,王龙刚.2011.陆源碎屑与碳酸盐混积岩及其油气地质意义.高校地质学报,17(2):297~307.
何宏,彭苏萍,邵龙义.2004.巴楚寒武—奥陶系碳酸盐岩微量元素及沉积环境.新疆石油地质,25(6):631~633.
焦养泉,吕新彪,王正海,王敏芳.2004.从沉积到成岩两种截然不同的地质环境——吐哈盆地砂岩型铀矿研究实例.地球科学,29(5):615~620.
经雅丽,张克信,林启祥,朱云海,王治平.2005.浙江长兴煤山下三叠统和龙山组、南陵湖组沉积地球化学特征与古环境意义.地质科技情报,24(1):35~40.
刘超,陆刚,张喜,周府生,黄祥林,杜远生.2014.桂西北天峨孤立碳酸盐岩台地晚古生代沉积特征与演化.地质论评,60(1):55~70.
刘智荣.2007.贵州南部泥盆系层序地层划分和层序地层格架的建立.地质通报,26(2):206~214.
毛玲玲,伊海生,季长军,夏国清.2014.柴达木盆地新生代湖相碳酸盐岩岩石学及碳氧同位素特征.地质科技情报,33(1):41~48.
梅冥相,高金汉,李东海,孟庆芬,易定红.2003.黔桂地区泥盆系层序地层格架及相对海平面变化.沉积学报,21(2):298~306.
牟保磊.1999.元素地球化学.北京:北京大学出版社,27~30.
王宏,林方成,李兴振,施美凤,刘朝基,石洪召.2012.缅甸中北部及邻区构造单元划分及新特提斯构造演化.中国地质,39(4):912~922.
王随继,黄杏珍,妥进才,邵红舜,王寿庆,何祖荣.1997.泌阳凹陷核桃园组微量元素演化特征及其古气候意义.沉积学报,15(1):65~70.
汪凯明,罗顺社.2009.燕山地区中元古界高于庄组和杨庄组地球化学特征及环境意义.矿物岩石地球化学通报,28(4):356~364
熊小辉,肖加飞.2011.沉积环境的地球化学示踪.地球与环境,39(3):405~414.
熊永强,耿新华,赵青芳,刘金萍,王彦美,耿安松.2006.济阳坳陷下古生界碳酸盐岩的分子有机地球化学特征.地质论评,52(1):132~136.
杨振宇,沈渭洲,郑连弟.2009.广西来宾蓬莱滩二叠纪瓜德鲁普统—乐平统界线剖面元素和同位素地球化学研究及地质意义.地质学报,83(1):1~14.
杨永剑,刘家铎,田景春,孟万斌,张翔,祝贺.2011.塔里术盆地上奥陶统桑塔木组混合沉积特征及控制因素.地质论评,57(2):185~191.
杨瑞东.2008.贵阳地区碳酸盐岩风化红粘土剖面稀土、微量元素分布特征.地质论评,54(3):409~418
云南省地质矿产局.1990.云南省区域地质志.北京:地质出版社,100~104
周义平,任友谅.1994.滇东黔西晚二叠世煤系中火山灰蚀变黏土岩的元素地球化学特征.沉积学报,12(2):123~132.
张锦泉,叶红专.1989.论碳酸盐与陆源碎屑的混合沉积.成都地质学院学报,16(2):89~92.
张海全,许效松,刘伟,门玉澎.2013.中上扬子地区晚奥陶世~早志留世岩相古地理演化与黑色页岩的关系.沉积与特提斯地质,33(2):17~24.
张远志,张定辉,刘世荣.1996.云南省岩石地层.武汉:中国地质大学出版社,1~366.
Brasier A T,Martin A P,Melezhik V A,Prave A R,Condon D J,Fallick A E.2013.Earth's earliest global glaciation?Carbonate geochemistry and geochronology of the Polisarka Sedimentary Formation,Kola Peninsula,Russia.Precambrian Research,235:278~294.
El-Tabakh M,Mory A,Schreiber B C,Yasin R.2004.Anhydrite cements after dolomitization of shallow marine Silurian carbonates of the Gascoyne Platform,Southern Carnarvon Basin,Western Australia.Sedimentary Geology,164(1):75~87.
Marshall J D.1992.Climatic and oceanographic isotopic signals from the carbonate rock record and their preservation.Geological magazine,129(2):143~160.
Moore G T,Jacobson S R,Ross C A.1994.A paleoclimate simulation of the Wenlockian(Late Early Silurian)world using a general circulation model with implications for early land plant paleoecology.Palaeogeography,palaeoclimatology,palaeoecology,110(1):115~144.
Munnecke A,Calner M,Harper D A T.2010.How does sea level correlate with sea-water chemistry?A progress report from the Ordovician and Silurian.Palaeogeography,Palaeoclimatology,Palaeoecology,296(3):213~216.
Porebska E,Kozlowska-Dawidziuk A,,Masiak M.2004.The lundgreni event in the Silurian of the East European Platform,Poland.Palaeogeography,Palaeoclimatology,Palaeoecology,213(3):271~294.
Refsnider K A,Miller G H,Fogel M L,Frechette,B,Bowden R,Andrews J T,Fanner G L.2014.Subglacially precipitated carbonates record geochemical interactions and pollen preservation at the base of the Laurentide Ice Sheet on central Baffin Island,eastern Canadian Arctic.Quaternary Research,81(1):94~105.
Rudnick R L,McDonough W F,Chappell B W.1993.Carbonatite metasomatism in the northern Tanzanian mantle:petrographic and geochemical characteristics.Earth and Planetary Science Letters,114(4):463~475.
Samtleben C,Munnecke A,Bickert T,Ptzold J.2001.Shell succession,assemblage and species dependent effects on the C/O~isotopic composition of brachiopods:examples from the Silurian of Gotland.Chemical Geology,175(1):61~107.
Saltzman M R.2002.Carbon isotopeδ13C stratigraphy across the Silurian—Devonian transition in North America:evidence for a perturbation of the global carbon cycle.Palaeogeography,Palaeoclimatology,Palaeoecology,187(1):83~100.
Tang H S,Chen Y J,Santosh M,Zhong H,Yang T.2013.REE geochemistry of carbonates from the Guanmenshan Formation,Liaohe Group,NE Sino-Korean Craton:implications for seawater compositional change during the Great Oxidation Event.Precambrian Research,227:316~336.
①云南省地质局第一区测队.1966.潞西幅1:20万区域地质调查报告.
目录