Early Paleozoic lithofacies palaeogeography evolution characteristics of Ghadames Basin in North Africa
ZHANG Zhongmin1, LI Yilin2,3,4, ZHENG Naixi2,3, CAO Zhe1, LÜ Xueyan1, LI Zongfeng2,3, SUN Runming2,3, XIA Changsheng2,3, LI Lei2,3, NIU Bo1, SU Yuchi2,3, ZHANG Haofei2,3, FENG Zhiqiang1, JI Hancheng2,3, BAO Zhidong2,3
1 Petroleum Exploration and Production Research Institute,Sinopec, Beijing 102206,China; 2 National Key Laboratory of Petroleum Resources and Prospecting,China University of Petroleum(Beijing),Beijing 102249,China; 3 College of Geosciences,China University of Petroleum(Beijing),Beijing 102249,China; 4 Institute of Unconventional Oil & Gas,Northeast Petroleum University,Heilongjiang Daqing 163318,China
Abstract The Ghadames Basin has become one of the significant basins for overseas exploration and project investment in China. Accurate understanding of the early Paleozoic sedimentary system and lithofacies palaeogeographic characteristics is the basis for further exploration and the key to establish the early tectonic-sedimentary evolution history of the basin. Based on the comprehensive analysis of core,seismic and logging data in Ghadames Basin,combined with the restoration of palaeogeomorphology,the sedimentary system and lithofacies palaeogeographic characteristics are discussed. The results show four types of depositional systems in the early Paleozoic of Ghadames Basin: alluvial fan,braided river,braided river delta and shallow marine. In the early and middle Cambrian,the Avalon terrane drifted toward the Baltic plate,the Proto-Tethys Ocean initially expanded,and the active continental margin was formed. During this period,the whole basin was dominated by continental deposits. During the Cambrian-Ordovician,the platform uplift and depression pattern was initially formed owing to the Caledonian movement. Large-scale denudation occurred in the western and northern parts of the Ghadames Basin,and large-scale glacier deposits were developed to form glacial moraine reservoirs. In the Early and Middle Silurian,the Palaeo-Tethys Ocean continued to expand,the sea level rose,and a extensive transgression occurred in the northern part. Shallow marine sedimentary environment predominated in the area during this time,and hot shale and mudstone were widely developed which are important source rocks and cap rocks in the region. In the Devonian period,the Hercynian movement uplifted the region as a whole,and the sea area in the basin was reduced and replaced mainly by continental sediments. On this basis,the establishment of the marine-continental transition sedimentary model under the early Paleozoic Tethys Ocean evolution background in the Ghadames Basin is established,which can provide a reference for the next exploration work in the study area.
Fund:National Natural Science Foundation of China(No.42272191)and the Sinopec Department of Science and Technology Project(No. P22086)
Corresponding Authors:
LI Yilin,born in 1992,is a Ph.D. candidate at China University of Petroleum(Beijing). She is mainly engaged in sedimentology and reservoir geology. E-mail: liyilinamo@163.com. BAO Zhidong,born in 1964,is a professor and director of the Ph.D. candidate. He is mainly engaged in reservoir geology and reservoir description,sedimentology and lithofacies palaeogeography. E-mail: baozhd@cup.edu.cn.
About author: ZHANG Zhongmin,born in 1971,is a professorate senior engineer. He is mainly engaged in petroleum geology and exploration research. E-mail: zzm.syky@sinopec.com.
Cite this article:
. Early Paleozoic lithofacies palaeogeography evolution characteristics of Ghadames Basin in North Africa[J]. JOPC, 2024, 26(1): 45-57.
. Early Paleozoic lithofacies palaeogeography evolution characteristics of Ghadames Basin in North Africa[J]. JOPC, 2024, 26(1): 45-57.
[1] 陈兆芹,刘景彦,董火祥,程雨涵,朱艺. 2022. 松辽盆地东南隆起区古地貌恢复方法与效果. 科学技术与工程, 22(23): 9937-9946. [Chen Z Q,Liu J Y,Dong H X,Cheng Y H,Zhu Y.2022. Restoration methods and effects of paleogeomorphology in the northeastern part of the southeast uplift of Songliao Basin. Science Technology and Engineering, 22(23): 9937-9946] [2] 陈忠民,万仑坤,毛凤军,刘计国,王玉华,郑凤云. 2014. 北非石油地质特征与勘探方向. 地学前缘, 21(3): 63-71. [Chen Z M,Wan L K,Mao F J,Liu J G,Wang Y H,Zheng F Y.2014. Petroleum geologic characteristics and exploration orientations in North Africa. Earth Science Frontiers, 21(3): 63-71] [3] 耿全如,李文昌,王立全,曾祥婷,彭智敏,张向飞,张璋,丛峰,关俊雷. 2021. 特提斯中西段古生代洋陆格局与构造演化. 沉积与特提斯地质, 41(2): 297-315. [Geng Q R,Li W C,Wang L Q,Zeng X T,Peng Z M,Zhang X F,Zhang Z,Cong F,Guan J L.2021. Paleozoic tectonic framework and evolution of the central and western Tethys. Sedimentary Geology and Tethyan Geology, 41(2): 297-315] [4] 黄雷,张忠民,赵晓辰,吕雪雁,王爱国,刘池洋,宋世骏,殷珂,李鑫,刘静静. 2022. 北非地区中生代盆地区域沉积中心发育机制新认识及油气差异富集效. 现代地质, 36(5): 1218-1229. [Huang L,Zhang Z M,Zhao X C,Lü X Y,Wang A G,Liu C Y,Song S J,Yin K,Li X,Liu J J.2022. New insights into the formation of Mesozoic depocenters in North Africa and its influence on differential enrichment in hydrocarbon. Geoscience, 36(5): 1218-1229] [5] 李顺明,邓宏文,吴修利,张海娜. 2006. 阿尔及利亚Zarzaitine油田下泥盆统沉积特征及演化规律. 石油勘探与开发, 33(3): 383-387. [Li S M,Deng H W,Wu X L,Zhang H N.2006. Sedimentary characteristics and evolution of Lower Devonian in Zarzaitine oilfield,eastern Algeria. Petroleum Exploration and Development, 33(3): 383-387] [6] 牟中海,唐勇,崔炳富,肖又军,王国林. 2002. 塔西南地区地层剥蚀厚度恢复研究. 石油学报, 23(1): 40-44,4. [Mou Z H,Tang Y,Cui B F,Xiao Y J,Wang G L.2002. Erosion thickness restoration in southwest Tarim Basin. Acta Petrolei Sinica, 23(1): 40-44,4] [7] 滕霞,张建新. 2020. 碰撞造山带超高温变质作用及构造意义: 以泛非造山带为例. 岩石学报, 36(10): 2963-2982. [Teng X,Zhang J X.2020. Ultrahigh temperature metamorphism in collisional orogen and its tectonic significance: an example from the Pan-African orogens. Acta Petrologica Sinica, 36(10): 2963-2982] [8] 田纳新,徐国强,李学永,吴官生,马亚松. 2004. 塔中地区早海西期风化壳古岩溶控制因素分析. 江汉石油学院学报, 26(2): 61-63. [Tian N X,Xu G Q,Li X Y,Wu G S,Ma Y S.2004. Analysis of control factors of weathering crust palaeokarst in Early Hercynian of Tazhong area. Journal of Jianghan Petroleum Institute, 26(2): 61-63] [9] 吴福元,万博,赵亮,肖文交,朱日祥. 2020. 特提斯地球动力学. 岩石学报, 36(6): 1627-1674. [Wu F Y,Wan B,Zhao L,Xiao W J,Zhu R X.2020. Tethyan geodynamics. Acta Petrologica Sinica, 36(6): 1627-1674] [10] 杨亮. 2013. 松辽盆地南部中央坳陷区扶余油层古地貌恢复及构造演化. 世界地质, 32(3): 564-570. [Yang L.2013. Paleogeomorphological restoration and tectonic evolution of Fuyu reservoir in central depression of southern Songliao Basin. Global Geology, 32(3): 564-570] [11] 张光亚,余朝华,陈忠民,张荻萩,温志新,黄彤飞,王彦奇,刘小兵,马锋,赵健. 2018. 非洲地区盆地演化与油气分布. 地学前缘, 25(2): 1-14. [Zhang G Y,Yu Z H,Chen Z M,Zhang D Q,Wen Z X,Huang T F,Wang Y Q,Liu X B,Ma F,Zhao J.2018. Tectonic evolution and hydrocarbon distribution in African Basins. Earth Science Frontiers, 25(2): 1-14] [12] 周小军,林畅松,丁文龙,李三忠,彭丽,陈清清. 2008. 地层结构外延法在塔中隆起古生界多期剥蚀量估算中的应用. 西安石油大学学报(自然科学版), 23(2): 6-11,115. [Zhou X J,Lin C S,Ding W L,Li S Z,Peng L,Chen Q Q.2008. Application of stratum structure extrapolation method in the multi-stage denudation thickness estimation of the Paleozoic in Tazhong Uplift. Journal of Xi'an Shiyou University(Natural Science Edition), 23(2): 6-11,115] [13] 赵国君,申文金,兰井志,赵祺彬. 2018. 利比亚古达米斯盆地含油气系统研究. 现代矿业, 34(2): 19-23. [Zhao G J,Shen W J,Lan J Z,Zhao Q B.2018. Study on the oil and gas system in Ghadames Basin in Libya. Modern Mining, 34(2): 19-23] [14] 赵红岩,胡孝林,于水,刘琼,郝立业,陈全红. 2013. 阿尔及利亚三叠盆地油气差异成藏的控制因素分析. 石油天然气学报, 35(1): 15-19,172. [Zhao H Y,Hu X L,Yu S,Liu Q,Hao L Y,Chen Q H.2013. Controlling factor analysis in hydrocarbon accumulation in the Triassic Basin of Algeria. Journal of Oil and Gas Technology, 35(1): 15-19,172] [15] 朱日祥,赵盼,赵亮. 2022. 新特提斯洋演化与动力过程. 中国科学: 地球科学, 52(1): 1-25. [Zhu R X,Zhao P,Zhao L.2022. Tectonic evolution and geodynamics of the Neo-Tethys Ocean. Scientia Sinica(Terrae), 52(1): 1-25] [16] 左丽群. 2019. 古地貌恢复方法综述. 石油地质与工程, 33(3): 12-16. [Zuo L Q.2019. Review on methods of paleo-geomorphologic restoration. Petroleum Geology and Engineering, 33(3): 12-16] [17] Aissaoui M N,Bédir M,Gabtni H.2016. Petroleum assessment of Berkine-Ghadames Basin,southern Tunisia. AAPG Bulletin, 100: 445-476. [18] Albriki K,Wang F Y,Li M J,El Zaroug R,Ali A,Samba M,Wiping F,Mohammed R S.2022. Silurian hot shale occurrence and distribution,organofacies,thermal maturation,and petroleum generation in Ghadames Basin,North Africa. Journal of African Earth Sciences, 189: 104497. [19] Badalini G,Redfern J,Carr I D.2002. A synthesis of current understanding of the structural evolution of North Africa. Journal of Petroleum Geology, 25: 249-258. [20] Baouche R,Sen S,Debiane K,Ganguli S S.2020. Integrated reservoir characterization of the Paleozoic and Mesozoic sandstones of the El Ouar field,Algeria. Journal of Petroleum Science and Engineering, 194: 107551. [21] Baouche R,Ganguli S S,Sen S,Radwan A E.2023. Assessment of reservoir stress state and its implications for Paleozoic tight oil reservoir development in the Oued Mya Basin,northeastern Algerian Sahara. Geosystems and Geoenvironment, 2: 100112. [22] Boote D R D,Clark-Lowes D D,Traut M W.1998. Palaeozoic petroleum systems of North Africa. Geological Society,London,Special Publications, 132: 7-68. [23] Craig J,Thusu B.1999. Abstract: Structural styles and prospectivity in the Paleozoic hydrocarbon systems of North Africa. AAPG Bulletin, 83(8): 1307-1308. [24] Dardour A M,Boote D R D,Baird A W.2004. Statigraphic controls on Paleozoic petroleum systems Ghadames Basin,Libya. Journal of Petroleum Geology, 27(2): 141-162. [25] Gharsalli R,Bédir M.2020. Sequence stratigraphy of the subsurface cambro-ordovician siliciclastic deposits in the Chotts Basin,Southern Tunisia: Petroleum implications. Journal of African Earth Sciences, 172: 103997. [26] Guiraud R,Bosworth W,Thierry J,Delplanque A.2005. Phanerozoic geological evolution of Northern and Central Africa: an overview. Journal of African Earth Sciences, 43: 83-143. [27] IHS Markit. IHS energy: EDIN. 2021. Https://ihsmarkit.com/index.html. [28] Jabir A,Cerepi A,Loisy C,Rubino J L.2020. Stratigraphy,sedimentology and paleogeography of a Paleozoic succession,ghadames and jefarah basin,Libya and Tunisia. Journal of African Earth Sciences, 163: 103642. [29] Jabir A,Cerepi A,Loisy C,Rubino J L.2021. Evaluation of reservoir systems in Paleozoic sedimentary formations of Ghadames and Jefarah Basins. Journal of African Earth Sciences, 183: 104324. [30] Jemai A,Mabrouk El Asmi A,Mtir S.2022. Layering and reservoir modeling of Silurian uppermost Tannezuft and Acacus reservoirs in the Tunisian Ghadames Basin: inferred static model and prolific layers. Journal of African Earth Sciences, 192: 104552. [31] Malla M,Kahtir B,Yahi N.1997. Review of the structural evolution and hydrocarbon generation in Ghadames and Illizi Basins. Diagnostic Microbiology and Infectious Disease, 79(4): 405-412. [32] Ruban D A,Al-Husseini M I,Iwasaki Y.2007. Review of Middle East Paleozoic plate tectonics. GeoArabia, 12: 157-164. [33] Rubino J,Anfray R,Blanpied C,Thu M,Ghienne J,Deynoux M,Manatschal G.2001. Meander belt complexes in latest Ordovician proglacial setting: examples from the Mamuniyat Formation in Murzuk Basin(SE Libya). Association des Sedimentologistes Francais, 36(5): 315-318. [34] Underdown R,Redfern J.2008. Petroleum generation and migration in the Ghadames Basin,north Africa: a two-dimensional basin-modeling study. AAPG Bulletin, 92(1): 53-76. [35] Zouzou C,Mouane S,Krid R.2018. Caractérisation Et Optimisation De Récupération Du Réservoir Cambrien,Champ De Gassi El Agreb,Bassin D Oued Mya,Sud Est Algérien. Masteral dissertation of Universite Kasdi Merbah: 108.
