塔里木盆地玉北5井下奥陶统蓬莱坝组沉积期的暴露标志及其意义
Exposure indicators and significance formed during the deposition of the Penglaiba Formation of Lower Ordovician of Well Yb5, Tarim Basin.
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摘要: 塔里木盆地玉北地区玉北5井下奥陶统蓬莱坝组,属于局限台地潮坪沉积,主要为一套灰、浅灰色泥晶白云岩、灰色藻纹层(藻席)、灰质云岩与细粉晶云岩。首次在岩芯中发现多个层位发育暴露标志,包括钙结壳、渗流豆石、碴状层、溶洞。溶洞主要发育在第10回次下部,碴状层、钙结壳、渗流豆石发育在第10回次中上部至第5回次。蓬莱坝组这些暴露标志的确认,说明玉北地区早奥陶世特马豆克期有一定规模的海平面下降事件,可能是储层形成的重要控制因素。Abstract: The Penglaiba Formation of Lower Ordovician of Well Yb5 in Yubei area of Tarim Basin, belonging restricted platform tidal sediments, was mainly consisted of gray, light gray micritic dolomite, gray algal laminae(algae seats), calcareous dolomite and fine-powder dolomite. It was first found in the cores that large amount of multi cycles exposure indicators, caliche, vadose pisolite, ruiniform horizon and tepee structure. The exposure indicators made up two superimposition relationships in vertical:Micritic dolomite-algal laminae-tepee structure; micritic dolomite-ruiniform horizon-caliche and vadose pisolite. The former grown in the lower of 10 times coring; the latter developed from the middle-upper of tenth core to the fifth core, with a characteristic of weak growth-intensive development-not development. It reflected a complete regression-transgression cycles. They, which a lot of exposure indicators were recognized in the Penglaiba Formation, were of much important significance about the objective and effective analyses of sedimentary facies on the tremadocian of Early Ordovician, the discussion on the existence of "Hetian paleo uplift" and its formation and evolution, the researches on the characteristics of dolomite reservoir and distribution of Penglaiba Formation.
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Key words:
- Caliche /
- Vadose pisolite /
- Ruiniform horizon /
- Tepee structure /
- Well Yb5 /
- Penglaiba Formation /
- Yubei area /
- Tarim Basin
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[1] Cao RG. 2002. The sedimentary environment of grapestone in Dengying Formation of Sinian System in Sichuan and Yunnan. Yunnan Geology, 21(2):208-213(in Chinese with English abstract)
[2] Chen M, Xu XS, Wan F et al. 2002. Genesis and significance of grape-and Showflake shaped dolomite from Dengying Formation of Upper Sinian in Upper Yangtze platform region. Journal of Mineralogy and Petrology, 22(4):33-37(in Chinese with English abstract)
[3] Cheng JF, Wang H, Wu T et al. 2013. A preliminary study on the Ordovician conodont biostratigraphy in Yubei Region, Tarim Basin. Xinjiang Geology, 31(Suppl.):21-27(in Chinese with English abstract)
[4] Dunham RJ. 1965. Vadose pisolite in the Capitan reef:Abstract. AAPG Bulletin, 49(3):338
[5] Dunham RJ. 1969. Vadose pisolite in the Capitan reef(Permian), New Mexico and Texas. In:Friedmann GM(ed.). Depositional Environments in Carbonate Rocks-A Symposium. SEPM, Special Publication, 14:182-191
[6] Estaban M and Klappa CF. 1983. Subaerial exposure environment. In:Perter AS, Don GB and Clyde HM(eds.). Carbonate Depositional Environment. AAPG Memoir, 33:1-54
[7] Estaban M and Pray LC. 1983. Pisoids and pisolite facies(Permian), Guadalupe Mountains, New Mexico and West Texas. In:Peryt TM(ed.). Coated Grains. Berlin, Heidelberg:Springer, 503-537
[8] Fan JS and Wen ZF. 1992. Re-examination of the Middle Triassic "reefs" in central Guizhou, South China:The discovery of Triassic caliche deposits. Chinese Science Bulletin, 37(16):1369-1372
[9] Fan JS and Wu YS. 2004. Sedimentological nature of late Middle Triassic Longtou Formation:Re-discussion on the origin of its caliche crusts. Acta Geologica Sinica, 78(2):149-155(in Chinese with English abstract)
[10] Gao ZQ, Fan TL, Tang WH and Wang X. 2012. Structure characteristics and evolution of the Eopaleozoic carbonate platform in Tarim Basin. Journal of Jilin University(Earth Science Edition), 42(3):657-665(in Chinese with English abstract)
[11] Horn BLD, Pereira VP and Schultz CL. 2013. Calcretes of the Santa Maria Supersequence, Mikkle Treassic, Rio Grande do Sul, Brazil:Classification, genesis and paleoclimatic implications. Palaerogeography, Palaerclimatology, Palaeoecology, 376:39-47
[12] James NP. 1972. Holocene and Pleistocene calcareous crust(caliche) profiles, criteria for subaerial exposure. Journal of Sedimentary Research, 42(4):817-836
[13] Jia CZ, Yao HJ, Wei GQ et al. 1992. Plate tectonic evolution and geological features of main structural elements of Tarim Basin. In:Tong XG and Liang DG(eds.). Proceedings of Petroleum Exploration in Tarim Basin. Urumqi:Xinjiang Science and Technology and Clinical Press, 207-225(in Chinese)
[14] Kadir S and Eren M. 2008. The occurrence and genesis of clay minerals associated with quaternary caliches in the Mersin area, southern Turkey. Clays and Clay Minerals, 56(2):244-258
[15] Kahle CF. 1977. Origin of subaerial Holocene calcareous crusts:Role of algae, fungi and sparmicritisation. Sedimentology, 24(3):413-435
[16] Li R and Jones B. 2014. Calcareous crusts on exposed Pleistocene limestones:A case study from Grand Cayman, British West Indies. Sedimentary Geology, 299:88-105
[17] Liu HR, Liu MX, Hu DX et al. 1991. The exposure indicators formed during the deposition of the Upper Sinian Dengying Formation in southwestern Sichuan and their significance. Sedimentary Facies and Paleogeography,(5):1-10(in Chinese with English abstract)
[18] Rasbury ET, Meyers WJ, Hanson GN et al. 2000. Relationship of uranium to petrography of caliche Paleosols with application to precisely dating the time of sedimentation. Journal of Sedimentary Research, 70(3):604-618
[19] Shi ZJ, Liang P, Wang Y et al. 2011. Geochemical characterishcs and genesis of Grapestone in Sinian Dengying Formation in south-eastern Sichuan basin. Acta Petrologica Sinica, 27(8):2263-2271(in Chinese with English abstract)
[20] Shi ZJ, Xia WQ, Wang Y et al. 2014. Characteristics and identification of Paleokarst in the Maokou Formation in the southeastern Sichuan Basin. Acta Petrologica Sinica, 30(3):622-630(in Chinese with English abstract)
[21] Su CP, Tang H, Li HW et al. 2015. Discovery of Caliches at top of the Middle Permian Maokou Formation, eastern Sichuan Basin and their developmental model. Journal of Palaeogeography, 17(2):229-240(in Chinese with English abstract)
[22] Tandon SK and Gibling MR. 1997. Calcretes at sequence boundaries in Upper Carboniferous cyclothems of the Sydney Basin, Atlantic Canada. Sedimentary Geology, 112(1-2):43-67
[23] Thomas CM. 1965. Origin of pisolites:Abstract. AAPG Bulletin, 49(3):360
[24] Wanas HA and Soliman HE. 2014. Calcretes and palustrine carbonates in the Oligo-Miocene clastic-carbonate unit of the Farafra Oasis, Western Desert, Egypt:Their origin and paleoenvironmental significance. Journal of African Earth Sciences, 95:145-154
[25] Wang D and Wang GZ. 2010. On genesis of botryoidal structure of dolomitite of the Dengying Formation in Nanjiang, Sichuan. Acta Geologica Sichuan, 30(4):454-456(in Chinese with English abstract)
[26] Xiang F, Chen HD and Zhang JQ. 1998. Studying on the origin of botryoidal lace in dolomitite of Dengying Formation, Sinian from Ziyang, Sichuan. Journal of Mineralogy Petrology, 18(Suppl.):136-138(in Chinese with English abstract)
[27] Xiao SB, Wei BH and Chang H. 2009. Review of Palaeoenvironmental studies recorded by calcretes. Journal of China Three Gorges University(Natural Sciences), 31(4):80-88(in Chinese with English abstract)
[28] Yang Z, Jia CZ, Pan XH et al. 2014. Hydrocarbon accumulation conditions and Cambro-Ordovician platform edge slope in the Southwest Tarim area. Geological Science and Technology Information, 33(4):159-164(in Chinese with English abstract)
[29] Zhou J and Chafetz HS. 2009. Biogenic caliches in Texas:The role of organisms and effect of climate. Sedimentary Geology, 222(3-4):207-225
[30] 曹仁关. 2002. 川滇震旦系灯影组葡萄石的沉积环境. 云南地质, 21(2):208-213
[31] 陈明, 许效松, 万方等. 2002. 上扬子台地晚震旦世灯影组中葡萄状-雪花状白云岩的成因意义. 矿物岩石, 22(4):33-37
[32] 成俊峰, 王虹, 武涛等. 2013. 塔里木盆地玉北地区奥陶系牙形石生物地层初步研究. 新疆地质, 31(增):21-27
[33] 范嘉松, 闻传芳. 1992. 贵州中三叠世生物礁的再研究——三叠纪钙结壳的发现. 科学通报, 37(5):438-440
[34] 范嘉松, 吴亚生. 2004. 贵州中三叠统上部垄头组的沉积性质——再论其钙结壳的成因. 地质学报, 78(2):149-155
[35] 高志前, 樊太亮, 杨伟红, 王鑫. 2012. 塔里木盆地下古生界碳酸盐岩台缘结构特征及其演化. 吉林大学学报(地球科学版), 42(3):657-665
[36] 贾承造, 姚慧君, 魏国齐等. 1992. 塔里木盆地板块构造演化和主要构造单元地质构造特征. 见:童晓光, 梁狄刚编. 塔里木盆地油气勘探论文集. 乌鲁木齐:新疆科技卫生出版社, 207-225
[37] 刘怀仁, 刘明星, 胡登新等. 1991. 川西南上震旦统灯影组沉积期的暴露标志及其意义. 岩相古地理,(5):1-10
[38] 施泽进, 梁平, 王勇等. 2011. 川东南地区灯影组葡萄石地球化学特征及成因分析. 岩石学报, 27(8):2263-2271
[39] 施泽进, 夏文谦, 王勇等. 2014. 四川盆地东南部茅口组古岩溶特征及识别. 岩石学报, 30(3):622-630
[40] 苏成鹏, 唐浩, 黎虹玮等. 2015. 四川盆地东部中二叠统茅口组顶部钙结壳的发现及其发育模式. 古地理学报, 17(2):229-240
[41] 王东, 王国芝. 2010. 四川南江灯影组白云岩葡萄状构造成因分析. 四川地质学报, 30(4):454-456
[42] 向芳, 陈洪德, 张锦泉. 1998. 资阳地区震旦系灯影组白云岩中葡萄花边的成因研究. 矿物岩石, 18(增):136-138
[43] 肖尚斌, 魏宝华, 常宏. 2009. 钙结岩记录的古环境变化研究进展. 三峡大学学报(自然科学版), 31(4):80-88
[44] 杨紫, 贾承造, 潘校华等. 2014. 塔西南寒武系-奥陶系斜坡带特征与油气成藏条件分析. 地质科技情报, 33(4):159-164
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