沉积环境中古盐度的恢复——以吐哈盆地西南缘水西沟群泥岩为例

新疆石油地质 ›› 2005, Vol. 26 ›› Issue (6): 719-722.

沉积环境中古盐度的恢复——以吐哈盆地西南缘水西沟群泥岩为例

王敏芳, 焦养泉, 王正海, 杨琴, 杨生科

中国地质大学资源学院,武汉 430074

收稿日期:2005-03-03 出版日期:2005-12-01 发布日期:2020-11-23
作者简介:王敏芳(1980-),女,江苏泰州人,在读博士研究生,能源地质工程,(Tel)027-62074671 (E-mail)wang_minfang@163.com.
基金资助:
国土资源大调查地质调查项目,吐哈盆地西南缘砂岩型铀矿远景区水西沟群层序地层与沉积体系分析(20001010174003)资助

Recovery Paleosalinity in Sedimentary Environment —An example of mudstone in Shuixigou group, southwestern margin of Turpan-Hami basin

WANG Min-fang, JIAO Yang-quan, WANG Zheng-hai, YANG Qin, YANG Sheng-ke

College of Earth Resources, China University of Geosciences, Wuhan, Hubei 430074, China

Received:2005-03-03 Online:2005-12-01 Published:2020-11-23

摘要/Abstract

摘要： 用锶钡法、硼元素法、钾钠比值和沉积磷酸盐法推算了吐哈盆地西南缘水西沟群沉积古水介质环境。认为,在水西沟群沉积时期,古水介质总体为淡水环境[m(Sr)/m(Ba)<1、m(B)为 12.30×10-6 ~64.20×10-6 ],且自八道湾组—西山窑组沉积时期古水介质逐渐变淡:八道湾组沉积时期,古水介质盐度平均为 2.28‰; 三工河组沉积时期,平均为2.23‰; 西山窑组沉积时期,平均为 2.07‰.此外,对恢复沉积环境古盐度的其他方法进行了讨论,并指出了各种方法的局限性。

关键词: 古盐度, 地球化学, 吐哈盆地, 沉积环境

Abstract: The paleoaqueous environment of Shuixigou group deposit in southwestern margin of Turpan-Hami basin is predicted by using Sr-Ba, B, K/Na and phosphate methods.The results show the fresh-water environment in the period of Shuixigou group with Sr/Ba ratio of less than 1 and B content ranging from 12.30ppm to 64.20ppm, and paleosalinity from 2.28‰ of J1b to 2.23‰ of J1x, averaging 2.07‰.Also, the other methods to recover paleosalinity in sedimentary environment are discussed and their limitations are presented in this paper.

Key words: paleosalinity, geochemistry, Turpan-Hami basin, sedimentary environment

中图分类号:

TE112.221

王敏芳, 焦养泉, 王正海, 杨琴, 杨生科. 沉积环境中古盐度的恢复——以吐哈盆地西南缘水西沟群泥岩为例[J]. 新疆石油地质, 2005, 26(6): 719-722.

WANG Min-fang, JIAO Yang-quan, WANG Zheng-hai, YANG Qin, YANG Sheng-ke. Recovery Paleosalinity in Sedimentary Environment —An example of mudstone in Shuixigou group, southwestern margin of Turpan-Hami basin[J]. Xinjiang Petroleum Geology, 2005, 26(6): 719-722.

参考文献

[1] 何起祥.沉积岩和沉积矿床[M].北京:地质出版社,1978.319-327.
[2] 游海涛,程日辉,刘昌岭.古盐度复原法综述[J].世界地质,2002,21(2):111-117.
[3] 王海峰,俞剑华,方一亭.皖南赣北宁国组和胡乐组沉积环境的古盐度特征及其地质意义[J].地层学杂志,1994,18(1):10-16.
[4] 赵峰华,任德怡,张军营,等.煤中有害元素的研究现状及其对环境保护的意义[J].煤矿环境保护,1998,12(2):20-23.
[5] 史忠生,陈开远,史军,等.运用锶钡比判定沉积环境的可行性分析[J].断块油气田,2003,10(2):12-16.
[6] 孙镇城,杨藩,张枝焕,等.中国新生代咸化湖泊沉积环境与油气生成[M].北京:石油工业出版社,1997.133-137.
[7] 郑荣才,柳梅青.鄂尔多斯盆地长 6 油层组古盐度研究[J].石油与天然气地质,1999,20(1):20-25.
[8] 同济大学地质系.海陆相地层辨认标志[M].北京:科学出版社,1980.171-175.
[9] 肖荣阁,蔡克勤,大井隆夫,等.硼及硼同位素地球化学在地质研究中的应用[J].地学前缘,1999,6(2):361-368.
[10] 蒋少涌.硼同位素及其地质应用研究[J].高校地质学报,2000,6(1):1-16.
[11] Cantanzaro E J,Champion C E,Garner E L,et al.Boric acid:Isotopic and assays standard reference materials[J].U.S.National Bureau Standards Special Publication,1970,260,(17):70.
[12] Degens E T,Williams E G,Keith M L.Environmental studies of Carboniferous sediments,Part 1:geochemical criteria for differentiating marine and fresh-wa ter shales[J].AAPG Bulletin,1957,41:2 427-2 455.
[13] Walker C T,Price N B,Wales S.Departure Curves for Computing Palaeosalinity form Boron in Illites and Shales[J].AAPG Bulletin,1963,47:833-841.
[14] Walker C T.Evaluation of boron as a palaeosalinity indicator and its application to off-shore prospects[J].AAPG Bulletin,1968,55:571-778.
[15] Harder H.Boron content of sediment as a tool in facies analysis[J].Sediment,Geol.1970,4(2):153-175.
[16] Couch E L.Calculation of palaeosalinities from boron and claymineral data[J].AAPGBulletin,1971,55:1829-1837.
[17] 刘宝珀君,曾允孚.岩相古地理基础和工作方法[M].北京:地质出版社,1985.
[18] 汪品先.古海洋学概论[M].上海:同济大学出版社,1989.
[19] 焦养泉,吕新彪,王正海,等.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[J].地球科学——中国地质大学学报,2004,29(5):615-620.
[20] Nelson B.Sedimentary phosphate method for estimating paleosalinities[J].Secience,1967,168:917-920.
[21] Chivas A R,Deckker P,Shelley J M G.Strontium content of ostracods indicates paleosalinity[J].Nature,1986,316:251-253.
[22] Chivas A R,Deckker P,Shelley J M G.Magnesium content of non-marine ostracod shells:a new palaeo-salini meter and paleothermometer[J].Paleogeogr.Paleoclimatol,1986,54:43-61.
[23] 沈吉,王苏民,Matsumoto R,等.内蒙古岱海古盐度定量复原初探[J].科学通报,2000,(17):1885-1888.
[24] 肖普夫.T J M[美].古海洋学[M].北京:海洋出版社,1984.200-201.
[25] 沈吉,曹建廷.岱海湖水盐度与氧同位素定量关系的建立[J].第四纪研究,2000,20(2):206-208.
[26] 沈吉,王苏民,羊向东.湖泊沉积物中有机碳稳定同位素测定及其古气候环境意义[J].海洋与湖沼,1996,27(4):400-404.
[27] Oi TNomura M,Musashi M,Ossaka T,et al.Boron isotopic composition of some boron minerals[J].Geochim.Cosmochim.Acta,1989,53:3 189-3 195.