Organic Geochemistry of the Bijiashan Lead-Zinc Deposits(Ⅰ):Features of the Soluble Organic Matter and Discussion on Several Genetic Problems of Ore Deposits
-
摘要: 本文对毕家山铅锌矿床和围岩中可溶有机质进行了分析，研究了矿床中有机质的性质、来源和成熟度，进而探讨了矿床中有机质的原始运移形式、成矿溶液可能的成因以及矿床形成的环境。结果表明，矿床中有机质主要属水生生物和细菌成因，它起源于灰岩矿源层，其原始运移形式可能为腐殖酸；成矿溶液可能形成于成岩早期，来自灰岩矿源层；矿床形成于强还原环境。这些无疑对矿床成因的了解具有重要意义。Abstract: This paper has studied the nature, source and maturity of organic matter in the Bijiashan lead-zinc deposits by analysis of extractable organic matter in the ores and adjacent rocks.The probably primary migration form of organic matter, probable genesis of ore-forming fluids and ore-forming environment are discussed. The fractions of chloroform extracts and distributional features of biomarkers reflect that organic matter is mainly composed of aquatic organism and bacteria and comes from the ore source bed of carbonate rocks. Based on analysis of the data of geology and geochemistry of the ore deposits, it is believed that the primary migration form of organic matter in the ore deposits probably is humic acid, and that the ore fluids probably are derived from diagenetic solutions in carbonate rocks. Low ratios of Pr/Ph and existence of βcarotane indicate that the ore deposits are formed under a strongly reducing environment.Those results are important in understanding genesis of the ore deposits.
-
[1] 1.Disnar J R, Sureau J F. Organic matter in ore genesis:progress and perspectives. Org. Gechem.，1990, 16(1一3):577-599.
2.胡明安.层控矿床有机地球化学初步研究.地球科学，1988,13(2):195-202.
3.Han J. Calvin M. Hydrocarbon distribution of algae and bacteria. and microbiological activity in sediment. Natl. Acad.Sci. Proc.，1969, 64:436-443.
4.Macqueen R W. Powell T G. Organic geochemistry of the Pine Point lead-zinc field and region, northwest Territories,Canada. Econ. Geol.. 1983. 78(1):1-25.
5.Orcutt D M. Parker B C, et al. Lipids in blue-green algal mats(modern stromatolites) from Antarctic oasis lakes. J.Phycol.，1986. 22 : 532-530.
6.蒂索，威尔特.石油形成和分布.徐永元等译，北京:石油工业出版社，1989. 78-85.
7.Peter K E. Scheuerman (G L,et al. Effects of refinery processes on bological markers. Energy vs Fuel. 1992. 6(5):560-577.
8.邵宏舜，妥进才等.原油和生油岩中街掂类化合物的组成和分布.见:黄杏珍等编.柴达木盆地的油气形成与寻找油气田方向.兰州:甘肃科学技术出版社.1993.290-292.
9.黄第藩，李晋超等.陆相有机质演化和成烃机理.北京:石油工业出版社，1984.133-135.
10.段毅，罗斌杰等.现代沼泽沉积物中五环三菇类的组成特征.沉积学报，1993.11( 3 ) : 82-87.
11.黄弟藩.我国石油地球化学研究和应用方面几个问题的探讨.石油与天然气地质，1984 , 5 ( 4 ) : 305-314.
12.武安斌，宋春晖等.甘肃省西成矿田中泥盆统沉积相古地理与控矿作用.兰州大学出版社。1992 ,105-106.
13.王锐良，傅家漠等.生物标志化合物在盐湖沉积物中的定量组成和分布.中国科学院地球化学研究所有机地球化学开放研究实验室研究年报，北京:科学出版社，1987.109-120.
14.杨志琼.江汉盐湖盆地原油及生油岩中生物标记化合物的特征及地质意义.石油与天然气地质，1983.4(3):269-282.
15.范善发，周中毅等.应用生物标志化合物评价塔里木盆地下古生界沉积物的古环境.沉积学报，1991(增刊):44-51.
16.Mackenzie A S. Applications of biological markers in petroleum geochemistry. In: Brooks J Welte D. eds. Advances in Petroleum Geochemistry. 1984. London: Academic Pr.，168-171.
17.盛国英，周中毅等.克拉玛依原油中的生物标记物及其地球化学意义.有机地球化学和陆相生油，北京:石油工业出版社，1986.83-93.
18.蒋助生.克拉玛依原油中的类胡萝卜烷及其地球化学特征.石油与天然气地质，1983.4 (2) :151-159. -
点击查看大图
计量
- 文章访问数: 419
- HTML全文浏览量: 6
- PDF下载量: 342
- 被引次数: 0
下载:
