塔里木盆地下古生界碳酸盐岩中硅化作用成因

朱东亚; 孟庆强

doi:10.11781/sysydz201004358

塔里木盆地下古生界碳酸盐岩中硅化作用成因

doi: 10.11781/sysydz201004358

中国石油化工股份有限公司石油勘探开发研究院, 北京 100083

基金项目: 国家基础研究发展计划(973计划)项目(2005CB422103);国家重大专项项目(2008ZX05005-001);中国石化海相前瞻性项目《中国典型地区深部流体活动与油气成藏作用研究》(G8804-07-ZS-0018)支持

详细信息

作者简介:
朱东亚(1975- ),男,博士,主要从事流体与油气成藏方面的研究.E-mail:zhudy@pepris.com.

中图分类号: TE122.2⁺21
计量
- 文章访问数: 1525
- HTML全文浏览量: 69
- PDF下载量: 882
- 被引次数: 0
出版历程
- 收稿日期: 2009-12-08
- 修回日期: 2010-06-28
- 刊出日期: 2010-08-28

THE GENESIS OF SILICIFICATION IN THE LOWER PALEOZOIC CARBONATE IN THE TARIM BASIN

SINOPEC Exploration and Production Research Institute, Beijing 100083, China

摘要

摘要: 塔里木盆地下古生界碳酸盐岩局部发生了显著的硅化作用。塔北的沙15井、沙5井、沙13井、塔深1井,塔中的中3井、塔中1井等的下古生界岩心上可以看到晶簇状石英充填或半充填于碳酸盐岩溶蚀孔洞中。石英中的流体包裹体具有较高的均一温度,其主峰区间为150~190℃。石英氧同位素δ¹⁸OV-SMOW值位于18.6‰和24.14‰之间,流体包裹体水氢同位素δDV-SMOW值位于-118.36‰和-83.39‰之间。石英在稀土元素组成上具有轻稀土富集和显著的Eu负异常的特征。流体包裹体均一温度、氢氧同位素和稀土元素组成表明下古生界碳酸盐岩中的石英形成于岩浆热液流体。岩浆热液在沉淀石英的同时会对碳酸盐岩储层产生显著的溶蚀改造作用,在实际油气勘探中应该给予足够的重视。
- 同位素 /
- 稀土元素 /
- 硅化 /
- 碳酸盐岩 /
- 塔里木盆地
Abstract: Remarkable silicification was found locally in the Lower Paleozoic carbonate in the Tarim Basin.Euhedral drusy quartz were frequently observed filled or half-filled in the dissolution pores in the carbonate cores of some wells,such as S₁5,S5,S₁3 and TS₁ wells in the north of Tarim Basin and Zhong 3 and Tazhong 1 wells in the central of Tarim Basin.The homogenization temperature of the fluid inclusions in the quartz is generally high,and the maximum frequency of the homogenization temperature is between 150℃ and 190℃.The δ¹⁸OV-SMOW values of the quartz and the δDV-SMOW values of the water in the fluid inclusions in the quartz are between 18.6‰ and 24.14‰,-118.36‰ and-83.39‰,respectively.The rare earth elements of the quartz have features of relatively high content of heavy rare earth elements and considerable negative Eu anomaly.The characteristics of homogenization temperature,hydrogen and oxygen isotope compositions and rare earth elements indicate that the quartz in the Lower Paleozoic carbonate were precipitated from hydrothermal fluid associated with volcanic activity.When precipitating quartz,the hydrothermal dissolved the carbonate remarkably.So that,more attention should be paid to the hydrothermal alteration of the carbonate during the exploration.
- isotope /
- rare earth element /
- silicification /
- carbonate /
- Tarim Basin

HTML全文

参考文献(19)

[1]	刘万洙,白雪峰,包亚范,等.新疆库鲁克塔格地区寒武—奥陶系硅质岩的岩石学特征及其成因分析[J].新疆地质,2006,24(4):344-348.
[2]	楼雄英,许效松.塔里木盆地早古生代晚期构造—沉积响应[J].沉积与特提斯地质,2004,24(3):72-79.
[3]	艾华国,兰林英,王筠,等.塔里木盆地雅克拉断凸前中生界不整合面之下下奥陶统白云岩储层特征[J].地质学报,1999,73(4):342-349.
[4]	李慧莉,邱楠生,金之钧,等.塔里木盆地的热史[J].石油与天然气地质,2005,26(5):613-617.
[5]	赵洪文,李铁军,张忠民,等.雅—轮断凸油气勘探目标评价与优选[R].北京:中国石油化工股份有限公司石油勘探开发研究院,2006:84.
[6]	叶德胜.塔里木盆地北部丘里塔格群(寒武系至奥陶系)白云岩的成因[J].沉积学报,1992,10(4):77-86.
[7]	郑永飞,陈江峰.稳定同位素地球化学[M].北京:科学出版社,2000.
[8]	TAYLOR H P JR.Oxygen and hydrogen isotope relationships in hydrothermal mineral deposits[M]/BARNES H L,ed.Geochemistry of hydrothermal ore deposits.2nd ed.New York:John Wiley & Son,1979:236-277.
[9]	LONGSTAFFE F J.Stable isotope studies of digenetic processes[C]/KYSER T K.Stable Isotope Geochemistry at Low Temperature Fluids,MAC Short Course Series 13.Québec:Mineralogical Association of Canada,1987:187-257.
[10]	贾存善,马旭杰,饶丹,等.塔河油田奥陶系油田水同位素特征及地质意义[J].石油实验地质,2007,29(3):292-297.
[11]	李红敬,解习农,周炼.扬子地区二叠系硅质岩成因分析及沉积环境研究[J].石油实验地质,2009,31(6):564-569.
[12]	刘显凤,蔡忠贤,云露,等.塔河油田岩溶作用元素地球化学的特征响应[J].石油实验地质,2009,31(3):270-274.
[13]	俞惠隆,张金亮,徐伦勋.东濮凹陷沙河街组泥岩的稀土元素地球化学特征[J].石油与天然气地质,1990,11(2):178-186.
[14]	刘宁,樊德华,郝运轻,等.稀土元素分析方法研究及应用:以渤海湾盆地东营凹陷永安地区物源分析为例[J].石油实验地质,2009,31(4):427-432.
[15]	WAKITA H,REY P,SCHMITT R A.Elemental abundances of major,minor,and trace elements in Apollo 11 lunar rocks,soil and core samples,Proc.Apollo 11 Lunar Science Conference[J].Geochimica et Cosmochimica Acta,1970,Supplement:1685-1717.
[16]	贾承造,张师本,吴绍祖.塔里木盆地及周边地层(下册)[M].北京:科学出版社,2004:227-262.
[17]	ANDERSON R N,HOBERT M A,LANGSETH M G.Geothermal convection through oceanic crust and sediments of the Indian Ocean[J].Science,1979,204:828-832.
[18]	HESSE R.Silica diagenesis:origin of inorganic and replacement cherts[M]/ MCILREATH I,MORROW D W,eds.Diagenesis,Geological Association of Canada Geoscience Reprint Series 4.Newfoundland:Geological Association of Canada Geoscience,1990:253-276.
[19]	PACKARD J J,Al-AASM I,SAMSON I,et al. A Devonian hydrothermal chert reservoir:the 225 bcf Parkland field,British Columbia,Canada[J].AAPG Bulletin,2001,85:51-84.