天然气地球科学 ›› 2020, Vol. 31 ›› Issue (10): 14281436.doi: 10.11764/j.issn.1672-1926.2020.06.006
Wei LIU1(),Zhen-qi WANG1(),Lin YE1,Li-fang LIU2,Sheng-bing HUANG2
摘要:
前人对渤海湾盆地渤中坳陷湖相烃源岩有机质保存条件,尤其是对水体分层的研究,主要提出的是生物标志物证据,缺乏无机地球化学方面的证据。基于U、V元素在沉积水体中的富集原理,以及草莓状黄铁矿的形成机理,尝试探讨渤中坳陷沙一段与沙三段古湖泊水体分层的证据。结果显示,沙一段与沙三段V/(V+Ni)值分别介于0.20~0.93与0.62~0.78之间,指示古湖泊水体为缺氧环境。沙一段与沙三段U/Th值介于0.14~0.43之间,但是沙一段与沙三段U元素与TOC值具有明显正相关性,说明U元素富集于缺氧水体中。同时,沙一段与沙三段V元素与TOC值也具有明显正相关性,进一步说明沙一段与沙三段烃源岩沉积期,古湖泊边部水体均为缺氧环境,但非停滞缺氧环境。对沙一段与沙三段草莓状黄铁矿的平均粒径统计显示,沙一段与沙三段草莓状黄铁矿平均粒径仅略大于停滞缺氧环境的粒径上限5.0 μm,说明沙一段与沙三段沉积期,古湖泊边部浅水区水体存在一个氧化还原界面,该界面位于湖底沉积物向下几厘米深处。据此可推断,向古湖泊沉积中心方向,水体逐渐加深,水体中的氧化还原界面必然会逐渐上升至水体中部,此界面即为沙一段与沙三段水体的分层界面。
中图分类号:
1 | HAO F, ZHOU X H, ZHU Y M, et al. Mechanisms of petroleum accumulation in the Bozhong Sub-basin, Bohai Bay Basin, China. Part 1: Origin and occurrence of crude oils[J]. Marine and Petroleum Geology, 2009, 26(8):1528-1542. |
2 | 吴克强, 姜雪, 孙和风. 近海富生油凹陷湖相烃源岩发育模式:以黄河口凹陷古近系为例[J]. 地质科技情报, 2015, 34(2):63-70. |
WU K Q, JIANG X, SUN H F. Model of lacustrine source rocks in offshore oil kitchen sags: A case study of Paleogene in Huanghekou Sag[J]. Geological Science and Technology Information, 2015, 34(2):63-70. | |
3 | HAO F, ZHOU X H, ZHU Y M, et al. Lacustrine source rock deposition in response to co-evolution of envirionments and organisms controlled by tectonic subsidence and climate, Bohai Bay Basin, China[J]. Organic Geochemistry, 2011, 42(1-3): 323-339. |
4 | LIU W, YE L, WANG Z Q, et al. Formation mechanism of organic-rich source rocks in Bozhong Sub-basin, Bohai Bay Basin,China[J]. Arabian Journal of Geosciences, 2019, 12(16):1-12. |
5 | 腾格尔, 刘文汇, 徐永昌, 等. 无机地球化学参数与有效烃源岩发育环境的相关研究[J]. 地球科学进展, 2005, 20(2):193-200. |
TENG G E, LIU W H, XU Y C, et al. Correlative study on parameters of inorganic geochemistry and hydrocarbon source rocks formative environment[J]. Advances in Earth Science, 2005, 20(2):193-200. | |
6 | 熊小辉, 肖加飞. 沉积环境的地球化学示踪[J]. 地球与环境, 2011, 39(3): 405-414. |
XIONG X H, XIAO J F. Geochemical indicators of sedimentary environments-a summary[J].Earth and Environment,2011, 39(3): 405-414. | |
7 | WANG G L, LI S, WANG T G, et al. Applications of molecular fossils in lacustrine stratigraphy[J]. Chinese Journal of Geochemistry, 2010, 29(1):15-20. |
8 | YIN J, WANG Q, HAO F, et al. Palaeoenvironmental reconstruction of lacustrine source rocks in the lower 1st Member of the Shahejie Formation in the Raoyang Sag and the Baxian Sag, Bohai Bay Basin, eastern China[J]. Palaeogeography Palaeoclimatology Palaeoecology, 2018, 495:87-104. |
9 | 郑海峰, 宋换新, 杨振瑞, 等. 湖北神农架地区南华系大塘坡组元素地球化学特征[J]. 地球科学与环境学报, 2019, 41(3):316-326. |
ZHENG H F, SONG H X, YANG Z R, et al. Element geochemical characteristics of Datangpo Formation of Nanhua System in Shennongjia area of Hubei, China[J]. Journal of Earth Science and Environment, 2019, 41(3):316-326. | |
10 | XIAO Y F, WU K, TIAN L, et al. Framboidal pyrite evidence for persistent low oxygen levels in shallow-marine facies of the Nanpanjiang Basin during the Permian-Triassic transition[J].Palaeogeography Palaeoclimatology Palaeoecology, 2018, 511: 243-255. |
11 | BREIT G N, WANTY R B. Vanadium accumulation in carbonaceous rocks: A review of geochemical controls during deposition and diagenesis[J].Chemical Geology,1991,91(2):83-97. |
12 | TRIBOVILLARD N, ALGEO T J, LYONS T, et al. Trace metals as paleoredox and paleoproductivity proxies: An update[J]. Chemical Geology, 2006, 232(1-2):12-32. |
13 | SHUFANG W, DAZHONG D, YUMAN W, et al. Sedimentary geochemical proxies for paleoenvironment interpretation of organic-rich shale: A case study of the Lower Silurian Longmaxi Formation,Southern Sichuan Basin,China[J]. Journal of Natural Gas Science and Engineering,2016,28:691-699. |
14 | HATCH J R, LEVENTHAL J S, MEYERS P A, et al. Relationship between inferred redox potential of the depositional environment and geochemistry of the Upper Pennsylvanian (Missourian) stark shale member of the Dennis Limestone, Wabaunsee County, Kansas, U.S.A.[J]. Chemical Geology, 1992, 99(1-3):65-82. |
15 | JONES B, MANNING D A C. Comparison of geochemical indices used for the interpretation of paleo-redox conditions in ancient mudstones[J]. Chemical Geology, 1994, 111(1-4):111-129. |
16 | BOONNARONG A, AKKHAPUN W, QINGLAI F, et al. Paleoproductivity and paleoredox condition of the Huai Hin Lat Formation in northeastern Thailand[J]. Journal of Earth Science, 2016, 27(3): 350-364. |
17 | GUOLIANG X, YULIN S, SHUGEN L, et al. Trace and rare earth element (REE) characteristics of mudstones from Eocene Pinghu Formation and Oligocene Huagang Formation in Xihu Sag, East China Sea Basin: Implications for provenance, depositional conditions and paleoclimate[J]. Marine & Petroleum Geology, 2018, 92:20-36. |
18 | ZHENG Y, ANDERSON R F, GEEN A V, et al. Remobilization of authigenic uranium in marine sediments by bioturbation[J]. Geochimica et Cosmochimica Acta, 2002, 66(10):1759-1772. |
19 | FRANCOIS R. A study on the regulation of the concentrations of some trace metals (Rb, Sr, Zn, Pb, Cu, V, Cr, Ni, Mn and Mo) in Saanich Inlet Sediments, Columbia British, Canada[J]. Marine Geology, 1988, 83(1-4):285-308. |
20 | KLINKHAMMER G P, PALMER M R. Uranium in the oceans: Where it goes and why[J]. Geochimica et Cosmochimica Acta, 1991, 55(7):1799-1806. |
21 | ZHENG Y, ANDERSON R F, GEEN A V, et al. Authigenic molybdenum formation in marine sediments: A link to pore water sulfide in the Santa Barbara Basin[J]. Geochimica et Cosmochimica Acta, 2000, 64(24):4165-4178. |
22 | MCMANUS J, BERELSON W M, KLINKHAMMER G P, et al. Authigenic uranium: Relationship to oxygen penetration depth and organic carbon rain[J]. Geochimica et Cosmochimica Acta, 2005, 69(1):95-108. |
23 | ALGEO T J, MAYNARD J B. Trace-element behavior and redox facies in core shales of Upper Pennsylvanian Kansas-type cyclothems[J]. Chemical Geology, 2004, 206(3-4):289-318. |
24 | 金强, 朱光有, 王娟. 咸化湖盆优质烃源岩的形成与分布[J]. 中国石油大学学报:自然科学版, 2008, 32(4):25-29. |
JIN Q, ZHU G Y, WANG J. Deposition and distribution of high-potential source rocks in saline lacustrine environments[J]. Journal of China University of Petroleum: Edition of Natural Science, 2008, 32(4):25-29. | |
25 | 姜雪, 邹华耀, 庄新兵, 等. 辽东湾地区烃源岩特征及其主控因素[J].中国石油大学学报:自然科学版,2010,34(2):37-43,48. |
JIANG X, ZOU H Y, ZHUANG X B, et al. Characteristics of hydrocarbon source rocks in Liaodong Bay area and its main controlling factors[J].Journal of China University of Petrole-um:Edition of Natural Science, 2010, 34(2):37-43,48. | |
26 | 廖卫. 二叠纪—三叠纪之交华南浅水台地环境的古氧相特征:来自微生物岩中草莓状黄铁矿和黄铁矿化化石的证据[D]. 武汉:中国地质大学(武汉), 2011. |
LIAO W. Paleo-oxygenation Facies in Shallow-marine Carbonate Platform Across the Permian-Triassic Boundary in South China: Evidences from Pyrite Framboids and Pyritized Fossils in the Microbialite[D]. Wuhan:China University of Geosciences (Wuhan), 2011. | |
27 | SUAN G, SCHOLLHORN I, SCHLOGL J, et al. Euxinic conditions and high sulfur burial near the European shelf margin (Pieniny Klippen Belt, Slovakia) during the Toarcian oceanic anoxic event[J]. Global and Planetary Change, 2018, 170:246-259. |
28 | MERINERO R, CÁRDENES V. Theoretical growth of framboidal and sunflower pyrite using the R-package frambgrowth[J]. Mineralogy and Petrology, 2017, 112(4):577-589. |
29 | WILKIN R T, BARNES H L. Formation processes of framboidal pyrite[J]. Geochimica et Cosmochimica Acta, 1997, 61(2):323-339. |
30 | CUTTER G A, VELINSKY D J. Temporal variations of sedimentary sulfur in a delaware salt marsh[J]. Marine Chemistry, 1988, 23(3-4):311-327. |
31 | MURAMOTO J A, HONJO S, FRY B, et al. Sulfur, iron and organic carbon fluxes in the Black Sea: Sulfur isotopic evidence for origin of sulfur fluxes[J]. Deep Sea Research Part A. Oceanographic Research Papers, 1991, 38(2):S1151-S1187. |
32 | BOND D P G, WIGNALL P B. Pyrite framboid study of marine Permian-Triassic boundary sections: A complex anoxic event and its relationship to contemporaneous mass extinction[J]. Bulletin of the Geological Society of America, 2010, 122(7-8):1265-1279. |
[1] | 刘田, 冯明友, 王兴志, 陈波, 张良华, 刘小洪, 王珏博. 渝东北巫溪地区晚奥陶世五峰期元素地球化学特征及其对沉积环境的限制[J]. 天然气地球科学, 2019, 30(5): 740-750. |
[2] | 王涛利,郝爱胜,陈清,李,王庆涛,卢鸿,刘大永. 中扬子宜昌地区五峰组和龙马溪组页岩发育主控因素[J]. 天然气地球科学, 2018, 29(5): 616-631. |
[3] | 杜洋, 樊太亮, 高志前. 塔里木盆地中下奥陶统碳酸盐岩地球化学特征及其对成岩环境的指示——以巴楚大板塔格剖面和阿克苏蓬莱坝剖面为例[J]. 天然气地球科学, 2016, 27(8): 1509-1523. |
[4] | 吴圣,汤达祯,严启团,许浩,王淑英,韩中喜. 天然气中微量元素捕集检测技术初探及应用[J]. 天然气地球科学, 2015, 26(11): 2166-2171. |
[5] | 张瑜,杨华,王多云,付金华,姚泾利,辛补社. 鄂尔多斯盆地南部铜川组碎屑岩地球化学特征及其对物源的制约[J]. 天然气地球科学, 2014, 25(8): 1233-1241. |
[6] | 张长江, 刘光祥, 曾华盛, 张关龙. 川西地区二叠系烃源岩发育环境及控制因素[J]. 天然气地球科学, 2012, 23(4): 626-635. |
[7] | 李广之, 陈银节, 尹红军, 宣海波. 近地表土壤中可溶态阳离子的石油地质意义[J]. 天然气地球科学, 2011, 22(2): 201-205. |
[8] | 李凤杰, 刘殿鹤, 刘琪. 四川宣汉地区吴家坪组硅质岩地球化学特征及其成因探讨[J]. 天然气地球科学, 2010, 21(1): 62-67. |
[9] | 程昌茹;郑琳;李长洪;卢青静;张庆;金合文 . 千米桥古潜山岩溶岩及其地球化学特征[J]. 天然气地球科学, 2008, 19(06): 816-820. |
[10] | 卢红选,孟自芳,李 斌,李相博,郑 民 . 微量元素Mo对褐煤有机质热解成烃的影响[J]. 天然气地球科学, 2007, 18(1): 104-106. |
|