Sedimentary environment of “Conchostracan shale” of the Middle Jurassic Shaximiao Formation in Sichuan Basin

doi:10.7605/gdlxb.2026.018

Journal of Palaeogeography（Chinese Edition） ›› 2026, Vol. 28 ›› Issue (4): 1369-1389. doi: 10.7605/gdlxb.2026.018

• PALAEOGEOGRAPHY • Previous Articles Next Articles

Sedimentary environment of “Conchostracan shale” of the Middle Jurassic Shaximiao Formation in Sichuan Basin

ZHOU Wenjun¹^,²(), QI Liang¹^,²(), HOU Mingcai¹^,², OUYANG Hui¹^,², GUO Yao¹^,², LUO Lin¹^,², CHEN Lin¹^,²

¹ State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Institute of Sedimentary Geology, Chengdu University of Technology, Chengdu 610059, China
² Key Laboratory of Deep-time Geography and Environment Reconstruction and Applications of Ministry of Natural Resources, Chengdu University of Technology, Chengdu 610059, China

Received:2025-03-07 Revised:2025-04-12 Online:2026-08-01 Published:2026-08-14
Contact: Qi Liang,born in 1992,is a researcher and a master’s supervisor. She is engaged in research on sedimentary geotectonics. E-mail: liangqi_cdut@163.com.
About author:
ZHOU Wenjun,born in 2002,is a master’s degree candidate. He is engaged in researches on basin structure and palaeogeography. E-mail: zwenjun94@163.com.
Supported by:
Sichuan Science and Technology Department Project(2025ZNSFSC0027)

四川盆地中侏罗统沙溪庙组“叶肢介页岩”沉积环境及其地质意义^*

周文俊¹^,²(), 齐靓¹^,²(), 侯明才¹^,², 欧阳辉¹^,², 郭垚¹^,², 罗林¹^,², 陈林¹^,²

¹ 油气藏地质及开发工程全国重点实验室, 沉积地质研究院,成都理工大学, 四川成都 610059
² 自然资源部深时地理环境重建与应用重点实验室, 成都理工大学, 四川成都 610059

通讯作者: 齐靓,女,1992年生,研究员,硕士生导师,主要从事沉积大地构造研究; E-mail: liangqi_cdut@163.com。
作者简介:
周文俊,男,2002年生,硕士研究生,主要从事盆地构造与古地理研究; E-mail: zwenjun94@163.com。
基金资助:
*四川省科技厅项目(2025ZNSFSC0027)

Abstract

Abstract:

The formation of the “Conchostracan shale” layer at the top of the lower section of the Middle Jurassic Shaximiao Formation in the Sichuan Basin marks a major shift in the paleolake depositional environment and palaeogeography. This transition corresponds to the faunal succession of the Shulong-Emeilong fauna to the Mamenchisaurus fauna. Reconstructing the sedimentary and palaeogeographic transformation during this period is crucial for understanding the evolution of dinosaur faunas in the Sichuan Basin. Through the buried characteristics of Conchostracan fossil assemblages and whole-rock geochemical analyses,samples from the lower “Conchostracan Shale” layer,as well as the mudstone and siltstone samples from both the upper and lower sections of the Shaximiao Formation,were examined. The results indicate that Conchostracans thrived in warm,humid shallow lacustrine environments. A transition in sedimentary environments—from deltaic systems to shallow lacustrine,fluvial,and deltaic systems—occurred between the lower and upper sections of the Shaximiao Formation. Analysis of paleoclimate indices(CIA,CIW),redox indicators(δCe,V/Cr,U/Th,V/(V+Ni),V/Sc),and paleosalinity proxies(B/Ga,Sr/Ba)reveals a dynamic evolution of the paleoenvironment within the Shaximiao Formation. Palaeoclimatic conditions shifted from semi-humid and semi-arid to warm and humid,and later reverted back to semi-humid and semi-arid. Concurrently,the paleo-water environment experienced a transition from oxidizing and weakly reducing conditions to more reducing conditions,followed by a return to oxidizing and weakly reducing conditions. Paleosalinity remained predominantly freshwater throughout,with only localized,minor salinization observed in the upper sections. These findings suggest that during the late Middle Jurassic,the Sichuan Basin experienced significant precipitation,leading to the establishment of a warm and humid palaeoclimate and a reducing lake environment conducive to the extensive proliferation of Conchostracans. Subsequently,a shift toward drier climatic conditions likely drove the adaptive evolution of herbivorous dinosaur lineages,transitioning from the Shulong-Emeilong fauna to the Mamenchisaurus fauna.

Key words: Conchostracan, sedimentary environment, palaeogeography, Shaximiao Formation, Middle Jurassic, Sichuan Basin

摘要：

四川盆地中侏罗统沙溪庙组下段顶部“叶肢介页岩”层的形成标志着古湖泊沉积环境与古地理格局的重大转变。该层位对应蜀龙-峨眉龙动物群向马门溪龙动物群的演替节点,重塑该时期沉积环境与古地理条件转变过程,对认识四川盆地恐龙动物群演化具有重要意义。本研究对沙溪庙组下段“叶肢介页岩”进行了叶肢介化石埋藏特征分析,并对“叶肢介页岩”以及沙溪庙组上、下段泥岩和粉砂岩样品进行了全岩地球化学分析。结果显示,沙溪庙组沉积时期相继发生前三角洲→浅湖→河流—三角洲沉积环境的转变,叶肢介大量生长繁殖于温暖湿润的浅湖环境中; CIA与CIW等古气候指标显示沙溪庙组古气候出现半湿润—半干旱→温暖湿润→半湿润—半干旱的转变,δCe、V/Cr、U/Th、V/(V+Ni)与V/Sc等氧化还原指标表明古水体经历了氧化—弱还原→还原→氧化—弱还原的过渡,B/Ga与Sr/Ba等指示古盐度整体以淡水为主,仅在上段局部发生微咸化。推测四川盆地中侏罗世晚期古气候温暖湿润,形成大量降水,湖盆水体转变为还原环境,从而促进了叶肢介的大量生长繁殖,而随后气候整体向干旱转变,驱动了植食性恐龙类群从蜀龙-峨眉龙向马门溪龙的适应性演替。

关键词: 叶肢介, 沉积环境, 古地理, 沙溪庙组, 中侏罗统, 四川盆地

CLC Number:

P531

ZHOU Wenjun, QI Liang, HOU Mingcai, OUYANG Hui, GUO Yao, LUO Lin, CHEN Lin. Sedimentary environment of “Conchostracan shale” of the Middle Jurassic Shaximiao Formation in Sichuan Basin[J]. Journal of Palaeogeography（Chinese Edition）, 2026, 28(4): 1369-1389.

周文俊, 齐靓, 侯明才, 欧阳辉, 郭垚, 罗林, 陈林. 四川盆地中侏罗统沙溪庙组“叶肢介页岩”沉积环境及其地质意义^*[J]. 古地理学报, 2026, 28(4): 1369-1389.

/ / Recommend / Download Citations

URL: http://www.gdlxb.cn/EN/10.7605/gdlxb.2026.018

http://www.gdlxb.cn/EN/Y2026/V28/I4/1369

Figures/Tables 17

Fig.1 Tectonic subdivision map of Sichuan Basin and adjacent areas(modified from Yan et al., 2023)

Fig.2 Geological map of southern Sichuan Basin and sampling locations

Fig.3 Comprehensive stratigraphic column of the Middle Jurassic Shaximiao Formation in Yongchuan-Zizhong area,Sichuan Basin

Fig.4 Field photographs of Chenjiayuanzi-Shimiaochang section in Yongchuan area,Sichuan Basin

Fig.5 Field photographs of Maliuwan section in Zizhong area,Sichuan Basin

Fig.6 Stereomicroscopic photographs showing morphology of selected conchostracan fossils from the Middle Jurassic Shaximiao Formation in Sichuan Basin

Fig.7 Trace element(a)and REE PAAS-normalized spider diagrams(b,PAAS data from Taylor et al., 1985) for samples from the Middle Jurassic Shaximiao Formation in Sichuan Basin

Fig.8 A-CN-K diagram(a)and Th/Sc-Zr/Sc diagram(b)of samples from the Middle Jurassic Shaximiao Formation in Sichuan Basin

Fig.9 Paleoclimate evolution and geochemical response of the Middle Jurassic Shaximiao Formation in Sichuan Basin

Table 4 Climate environment identification results of mudstones from the Middle Jurassic Shaximiao Formation in Sichuan Basin

层位和岩性	CIA		Sr/Cu		Rb/Sr		Fe/Mn
层位和岩性	范围值	平均值	范围值	平均值	范围值	平均值	范围值	平均值
沙溪庙组上段粉砂岩和泥岩	62.04~70.3	67.35	3.05~12.33	5.62	0.45~1.44	0.98	37.71~120.65	83.22
叶肢介页岩	76.28~77.12	76.82	2.47~3.30	2.84	1.20~1.34	1.27	80.10~117.69	94.52
沙溪庙组下段粉砂岩和泥岩	65.08~72.69	66.95	3.81~11.38	6.49	0.57~1.22	0.80	39.86~99.62	76.84

Fig.10 δCe-La_N/Nd_N(a)and δEu-δCe(b)correlation diagrams of samples from the Middle Jurassic Shaximiao Formation in Sichuan Basin

Table 5 Redox environment identification results of mudstones from the Middle Jurassic Shaximiao Formation in the Sichuan Basin

层位和岩性	V/Cr		U/Th		V/(V+Ni)		V/Sc
层位和岩性	范围值	平均值	范围值	平均值	范围值	平均值	范围值	平均值
沙溪庙组上段粉砂岩和泥岩	0.92~1.60	1.23	0.15~0.24	0.17	0.64~0.75	0.70	5.32~8.88	7.00
叶肢介页岩	1.52~3.58	1.90	0.17~0.21	0.19	0.77~0.78	0.78	7.54~8.63	8.08
沙溪庙组下段粉砂岩和泥岩	0.86~1.38	1.16	0.17~0.31	0.21	0.66~0.76	0.70	4.93~8.00	6.26

Fig.11 Scatter plot of B/Ga(a)and Sr/Ba(b)values of samples from the Middle Jurassic Shaximiao Formation in Sichuan Basin

Fig.12 Middle Jurassic palaeogeographic map of Sichuan Basin(modified from Ma et al., 2009)

References 72

[1]	褚杨, 林伟, Faure M, 王清晨. 2015. 华南板块早中生代陆内造山过程: 以雪峰山—九岭为例. 岩石学报, 31(8): 2145-2155.
	[Chu Y, Lin W, Faure M, Wang Q C. 2015. Early Mesozoic intracontinental orogeny: example of the Xuefengshan-Jiuling Belt. Acta Petrologica Sinica, 31(8): 2145-2155]
[2]	戴贤铎, 杜远生, 马千里, 郭华. 2018. 秭归盆地峡口剖面中侏罗统千佛崖组古气候演化的地球化学记录. 地质科技情报, 37(2): 50-58.
	[Dai X D, Du Y S, Ma Q L, Guo H. 2018. Palaeoclimate change of the Middle Jurassic Qianfoya Formation revealed by geochemical records of Xiakou section in Zigui Basin. Geological Science and Technology Information, 37(2): 50-58]
[3]	董枝明. 1980. 中国的恐龙动物群及其层位. 地层学杂志, 4(4): 256-263.
	[Dong Z M. 1980. The Sauropoda fossils and their stratigraphical distribution in China. Journal of Stratigraphy, 4(4): 256-263]
[4]	冯连君, 储雪蕾, 张启锐, 张同钢. 2003. 化学蚀变指数(CIA)及其在新元古代碎屑岩中的应用. 地学前缘, 10(4): 539-544.
	[Feng L J, Chu X L, Zhang Q R, Zhang T G. 2003. CIA(chemical index of alteration)and its applications in the Neoproterozoic clastic rocks. Earth Science Frontiers, 10(4): 539-544]
[5]	冯连君, 储雪蕾, 张同钢, 黄晶. 2006. 莲沱砂岩: 南华大冰期前气候转冷的沉积记录. 岩石学报, 22(9): 2387-2393.
	[Feng L J, Chu X L, Zhang T G, Huang J. 2006. Liantuo sandstones: sedimentary records under cold climate before the Nanhua big glaciations. Acta Petrologica Sinica, 22(9): 2387-2393]
[6]	辜学达, 刘啸虎. 1997. 四川省岩石地层. 武汉: 中国地质大学出版社,1-417.
	[Gu X D, Liu X H. 1997. Lithostratigraphy of Sichuan Province. Wuhan: China University of Geosciences Press,1-417]
[7]	郭卫星, 唐建明, 欧阳嘉穗, 王同, 王信, 王岩. 2021. 四川盆地南部构造变形特征及其与页岩气保存条件的关系. 天然气工业, 41(5): 11-19.
	[Guo W X, Tang J M, Ouyang J S, Wang T, Wang X, Wang Y. 2021. Characteristics of structural deformation in the southern Sichuan Basin and its relationship with the storage condition of shale gas. Natural Gas Industry, 41(5): 11-19]
[8]	郭正吾, 邓康龄, 韩永辉, 刘应楷, 殷建棠, 王庆国, 梁恩宇, 李国建, 陈昭国, 刘宗正, 吴春生. 1996. 四川盆地形成与演化. 北京: 地质出版社,1-200.
	[Guo Z W, Deng K L, Han Y H, Liu Y K, Yin J T, Wang Q G, Liang E Y, Li G J, Chen Z G, Liu Z Z, Wu C S. 1996. Formation and Evolution of Sichuan Basin. Beijing: Geological Publishing House,1-200]
[9]	黄涵宇, 何登发, 李英强, 范慧达. 2019. 四川盆地东南部泸州古隆起的厘定及其成因机制. 地学前缘, 26(1): 102-120. doi: 10.13745/j.esf.sf.2019.1.9
	[Huang H Y, He D F, Li Y Q, Fan H D. 2019. Determination and formation mechanism of the Luzhou paleo-uplift in the southeastern Sichuan Basin. Earth Science Frontiers, 26(1): 102-120] doi: 10.13745/j.esf.sf.2019.1.9
[10]	雷开宇, 刘池洋, 张龙, 吴柏林, 寸小妮, 孙莉. 2017. 鄂尔多斯盆地北部侏罗系泥岩地球化学特征: 物源与古沉积环境恢复. 沉积学报, 35(3): 621-636.
	[Lei K Y, Liu C Y, Zhang L, Wu B L, Cun X N, Sun L. 2017. Element geochemical characteristics of the Jurassic mudstones in the northern Ordos Basin: implications for tracing sediment sources and paleoenvironment restoration. Acta Sedimentologica Sinica, 35(3): 621-636]
[11]	李军, 黄成敏, 文星跃, 张茂超. 2021. 四川盆地中生代古气候变化: 来自深时古土壤证据. 沉积学报, 39(5): 1157-1170.
	[Li J, Huang C M, Wen X Y, Zhang M C. 2021. Mesozoic paleoclimate reconstruction in Sichuan Basin China: evidence from deep-time paleosols. Acta Sedimentologica Sinica, 39(5): 1157-1170]
[12]	李奎. 1998. 中国的蜥脚类恐龙化石及其层位. 成都理工学院学报, 25(1): 53-60.
	[Li K. 1998. Chinese sauropod dinosaur fossils and their horizons. Journal of Chengdu University of Technology, 25(1): 53-60]
[13]	李奎, 杨春燕. 2009. 四川盆地沙溪庙组的脊椎动物化石及其时代归属. 中国古生物学会第十次全国会员代表大会暨第25届学术年会论文集. 南京: 177-178.
	[Li K, Yang C Y. 2009. Vertebrate fossils from the Shaximiao Formation in the Sichuan Basin and their age. The 10th National Congress of Palaeontological Society of China(PSC):The 25th Annual Conference of PSC. Nanjing: 177-178]
[14]	李丽琴. 2016. 川东北地区三叠—侏罗纪转折期孢粉植物群及古气候与古环境变化. 中国科学院大学博士论文: 1-205.
	[Li L Q. 2016. Triassic-Jurassic transitional palynoflora and paleoclimate and paleoenvironmental changes in northeastern Sichuan. Doctoral dissertation of University of Chinese Academy of Sciences: 1-205]
[15]	李琪琪, 蓝宝锋, 李刚权, 徐尚, 刘婷, 苟启洋, 王雨轩. 2021. 黔中隆起北缘五峰—龙马溪组页岩元素地球化学特征及其地质意义. 地球科学, 46(9): 3172-3188.
	[Li Q Q, Lan B F, Li G Q, Xu S, Liu T, Gou Q Y, Wang Y X. 2021. Element geochemical characteristics and their geological significance of Wufeng-Longmaxi Formation shales in north margin of the Central Guizhou Uplift. Earth Science, 46(9): 3172-3188]
[16]	李向东, 郇雅棋, 阙易. 2018. 桌子山中奥陶统克里摩里组下段稀土元素特征与沉积介质分析. 地质科学, 53(2): 547-565.
	[Li X D, Huan Y Q, Que Y. 2018. REE geochemistry and analysis of sedimentary aqueous media in lower part of Kelimoli Formation,Middle Ordovician,Zhuozishan area. Chinese Journal of Geology, 53(2): 547-565]
[17]	李星学, 周志炎, 蔡重阳, 孙革, 欧阳舒, 邓龙华. 1995. 中国地质时期植物群. 广州: 广东科技出版社,1-695.
	[Li X X, Zhou Z Y, Cai C Y, Sun G, Ouyang S, Deng L H. 1995. Fossil Floras of China Through the Geological Ages. Guangzhou: Guangdong Science and Technology Press,1-695]
[18]	李英强, 何登发. 2014. 四川盆地及邻区早侏罗世构造-沉积环境与原型盆地演化. 石油学报, 35(2): 219-232. doi: 10.7623/syxb201402002
	[Li Y Q, He D F. 2014. Evolution of tectonic-depositional environment and prototype basins of the Early Jurassic in Sichuan Basin and adjacent areas. Acta Petrolei Sinica, 35(2): 219-232]
[19]	李智武. 2006. 中—新生代大巴山前陆盆地—冲断带的形成演化. 成都理工大学博士学位论文: 1-246.
	[Li Z W. 2006. Meso-Cenozoic evolution of Dabashan foreland basin-thrust belt,central China. Doctoral dissertation of Chengdu University of Technology: 1-246]
[20]	梁斌, 王全伟, 阚泽忠. 2007. 四川盆地中侏罗统沙溪庙组钙质结核的碳、氧同位素特征. 矿物岩石, 27(2): 54-58.
	[Liang B, Wang Q W, Kan Z Z. 2007. Carbon and oxygen isotopic compositions of carbonate nodule in the Shaximiao Formation of the Middle Jurassic,Sichuan Basin. Journal of Mineralogy and Petrology, 27(2): 54-58]
[21]	林景昱, 褚庆忠, 邵先杰, 韩森伟, 刘连忠, 董常青, 刘书燕. 2023. 柳江盆地上寒武统崮山组微量元素地球化学特征及古环境指示意义. 科学技术与工程, 23(7): 2749-2758.
	[Lin J Y, Chu Q Z, Shao X J, Han S W, Liu L Z, Dong C Q, Liu S Y. 2023. Geochemical characteristics of trace elements of the Upper Cambrian Kushan Formation in the Liujiang Basin and paleonvironmental implications. Science Technology and Engineering, 23(7): 2749-2758]
[22]	马永生, 陈洪德, 王国力. 2009. 中国南方构造—层序岩相古地理图集. 北京: 科学出版社,1-301.
	[Ma Y S, Chen H D, Wang G L. 2009. Tectonic-Sequence Lithofacies Paleogeographic Atlas of Southern China. Beijing: Science Press,1-301]
[23]	彭光照. 2009. 四川自贡地区侏罗纪恐龙动物群组合特征. 地质学刊, 33(2): 113-123.
	[Peng G Z. 2009. Assemblage characters of Jurassic dinosaurian fauna in Zigong of Sichuan. Journal of Geology, 33(2): 113-123]
[24]	沈传波, 梅廉夫, 徐振平, 汤济广. 2007. 四川盆地复合盆山体系的结构构造和演化. 大地构造与成矿学, 31(3): 288-299.
	[Shen C B, Mei L F, Xu Z P, Tang J G. 2007. Architecture and tectonic evolution of composite basin-mountain system in Sichuan Basin and its adjacent areas. Geotectonica et Metallogenia, 31(3): 288-299]
[25]	舒良树. 2012. 华南构造演化的基本特征. 地质通报, 31(7): 1035-1053.
	[Shu L S. 2012. An analysis of principal features of tectonic evolution in South China Block. Geological Bulletin of China, 31(7): 1035-1054]
[26]	苏金宝, 董树文, 张岳桥, 李勇, 陈宣华, 崔建军, 张交东. 2014. 川黔湘构造带构造样式及深部动力学制约. 吉林大学学报(地球科学版), 44(2): 490-506.
	[Su J B, Dong S W, Zhang Y Q, Li Y, Chen X H, Cui J J, Zhang J D. 2014. Structural patterns and deep dynamics in the Sichuan-Guizhou-Hunan tectonic belt. Journal of Jilin University(Earth Science Edition), 44(2): 490-506]
[27]	覃作鹏, 刘树根, 邓宾, 李智武, 孙玮. 2013. 川东南构造带中新生代多期构造特征及演化. 成都理工大学学报(自然科学版), 40(6): 703-711.
	[Qin Z P, Liu S G, Deng B, Li Z W, Sun W. 2013. Multiphase structural features and evolution of Southeast Sichuan tectonic belt in China. Journal of Chengdu University of Technology(Science & Technology Edition), 40(6): 703-711]
[28]	王金琪. 1990. 安县构造运动. 石油与天然气地质, 11(3): 223-234.
	[Wang J Q. 1990. Anxian tectonic movement. Oil & Gas Geology, 11(3): 223-234]
[29]	王全伟, 阚泽忠, 刘啸虎, 梁斌, 朱兵. 2008. 四川中生代陆相盆地孢粉组合所反映的古植被与古气候特征. 四川地质学报, 28(2): 89-95.
	[Wang Q W, Kan Z Z, Liu X H, Liang B, Zhu B. 2008. The Mesozoic sporopollen assemblage in the Sichuan Basin and its significance to paleovegetation and paleoclimate. Acta Geologica Sichuan, 28(2): 89-95]
[30]	王随继, 黄杏珍, 妥进才, 邵宏舜, 阎存凤, 王寿庆, 何祖荣. 1997. 泌阳凹陷核桃园组微量元素演化特征及其古气候意义. 沉积学报, 15(1): 65-70.
	[Wang S J, Huang X Z, Tuo J C, Shao H S, Yan C F, Wang S Q, He Z R. 1997. Evolutional characteristics and their paleoclimate significance of trace elements in the Hetaoyuan Formation,Biyang Depression. Acta Sedimentologica Sinica, 15(1): 65-70]
[31]	王中刚, 于学元, 赵振华. 1989. 稀土元素地球化学. 北京: 科学出版社,76-291.
	[Wang Z G, Yu X Y, Zhao Z H. 1989. Rare Earth Element Geochemistry. Beijing: Science Press,76-291]
[32]	汪泽成, 邹才能, 陶士振, 李军, 王世谦, 赵朝阳. 2004. 大巴山前陆盆地形成及演化与油气勘探潜力分析. 石油学报, 25(6): 23-28. doi: 10.7623/syxb200406005
	[Wang Z C, Zou C, Tao S Z, Li J, Wang S Q, Zhao C Y. 2004. Analysis on tectonic evolution and exploration potential in Dabashan foreland basin. Acta Petrolei Sinica, 25(6): 23-28]
[33]	韦恒叶. 2012. 古海洋生产力与氧化还原指标: 元素地球化学综述. 沉积与特提斯地质, 32(2): 76-88.
	[Wei H Y. 2012. Productivity and redox proxies of Paleo-oceans: an overview of elementary geochemistry. Sedimentary Geology and Tethyan Geology, 32(2): 76-88]
[34]	魏巍, Thomas J Algeo, 陆永潮, 刘惠民, 张守鹏, 张靖宇, 杜远生. 2021. 古盐度指标与渤海湾盆地古近系海侵事件初探. 沉积学报, 39(3): 571-592.
	[Wei W, Algeo T J, Lu Y C, Liu H M, Zhang S P, Zhang J Y, Du Y S. 2021. Paleosalinity proxies and marine incursions into the Paleogene Bohai Bay Basin lake system,northeastern China. Acta Sedimentologica Sinica, 39(3): 571-592]
[35]	徐小涛, 邵龙义. 2018. 利用泥质岩化学蚀变指数分析物源区风化程度时的限制因素. 古地理学报, 20(3): 515-522. doi: 10.7605/gdlxb.2018.03.038
	[Xu X T, Shao L Y. 2018. Limiting factors in utilization of chemical index of alteration of mudstones to quantify the degree of weathering in provenance. Journal of Palaeogeography(Chinese Edition), 20(3): 515-522]
[36]	颜丹平, 邱亮, 陈峰, 李林, 赵磊, 杨文心, 张翼西. 2018. 华南地块雪峰山中生代板内造山带构造样式及其形成机制. 地学前缘, 25(1): 1-13. doi: 10.13745/j.esf.yx.2017-5-16
	[Yan D P, Qiu L, Chen F, Li L, Zhao L, Yang W X, Zhang Y X. 2018. Structural style and kinematics of the Mesozoic Xuefengshan intraplate orogenic belt,South China Block. Earth Science Frontiers, 25(1): 1-13]
[37]	颜照坤, 颜晨雨, 邵崇建, 张自力, 叶婷婷, 张代柱, 任聪, 聂舟, 赵少泽, 龚楚雲, 赵文武. 2023. 扬子西南缘晚三叠世—早侏罗世盆山格局演化过程: 来自楚雄盆地碎屑锆石U-Pb年代学的证据. 地球科学, 48(4): 1259-1270.
	[Yan Z K, Yan C Y, Shao C J, Zhang Z L, Ye T T, Zhang D Z, Ren C, Nie Z, Zhao S Z, Gong C Y, Zhao W W. 2023. Evolution of basin-range pattern in southwest margin of Yangtze Nlock during Late Triassic to Early Jurassic: evidence of detrital zircon U-Pb geochronology from Chuxiong Basin. Earth Science, 48(4): 1259-1270]
[38]	张国伟, 董云鹏, 赖绍聪, 郭安林, 孟庆任, 刘少峰, 程顺有, 姚安平, 张宗清, 裴先治, 李三忠. 2003. 秦岭—大别造山带南缘勉略构造带与勉略缝合带. 中国科学(D辑: 地球科学), 33(12): 1121-1135.
	[Zhang G W, Dong Y P, Lai S C, Guo A L, Meng Q R, Liu S F, Cheng S Y, Yao A P, Zhang Z Q, Pei X Z, Li S Z. 2003. Mianlue structural belt and Mianlue suture belt in the southern margin of Qinling-Dabie orogenic belt. Science in China(Series D: Earth Science), 33(12): 1121-1135]
[39]	张建军, 牟传龙, 刘成东, 夏彧, 伍皓, 陈婷, 吴波. 2023. 户撒盆地芒棒组第二段古气候特征及其对铀成矿作用的影响. 科学技术与工程, 23(32): 13701-13709.
	[Zhang J J, Mou C L, Liu C D, Xia Y, Wu H, Chen T, Wu B. 2023. Paleoclimate characteristics of the second layer of Mangbang Formation in Husa Basin and its influence on uranium mineralization. Science Technology and Engineering, 23(32): 13701-13709]
[40]	张力文, 吴陈君, 黄道军, 文志刚, 赵伟波, 席颖洋, 张辉, 孙璐, 宋换新. 2022. 鄂尔多斯盆地东部石炭系本溪组泥页岩地球化学特征及沉积环境. 天然气地球科学, 33(9): 1485-1498. doi: 10.11764/j.issn.1672-1926.2022.06.009
	[Zhang L W, Wu C J, Huang D J, Wen Z G, Zhao W B, Xi Y Y, Zhang H, Sun L, Song H X. 2022. Geochemical characteristics and sedimentary environment of Carboniferous Benxi Formation in eastern Ordos Basin. Natural Gas Geoscience, 33(9): 1485-1498] doi: 10.11764/j.issn.1672-1926.2022.06.009
[41]	张骞, 岳晓晶. 2022. 川东南地区页岩储层开采条件对比分析. 矿产综合利用, 43(5): 108-118.
	[Zhang Q, Yue X J. 2022. Comparative analysis of shale reservoir exploitation conditions in southeast Sichuan. Multipurpose Utilization of Mineral Resources, 43(5): 108-118]
[42]	张岳桥, 董树文. 2019. 晚中生代东亚多板块汇聚与大陆构造体系的发展. 地质力学学报, 25(5): 613-641.
	[Zhang Y Q, Dong S W. 2019. East Asia multi-plate convergence in Late Mesozoic and the development of continental tectonic systems. Journal of Geomechanics, 25(5): 613-641]
[43]	Algeo T J, Maynard J B. 2004. Trace-element behavior and redox facies in core shales of Upper Pennsylvanian Kansas-type cyclothems. Chemical Geology, 206(3-4): 289-318. doi: 10.1016/j.chemgeo.2003.12.009 URL
[44]	Bau M, Koschinsky A, Dulski P, Hein J R. 1996. Comparison of the partitioning behaviours of yttrium,rare earth elements,and titanium between hydrogenetic marine ferromanganese crusts and seawater. Geochimica et Cosmochimica Acta, 60(10): 1709-1725. doi: 10.1016/0016-7037(96)00063-4 URL
[45]	Cox R, Lowe D R, Cullers R L. 1995. The influence of sediment recycling and basement composition on evolution of mudrock chemistry in the southwestern United States. Geochimica et Cosmochimica Acta, 59(14): 2919-2940. doi: 10.1016/0016-7037(95)00185-9 URL
[46]	Degens E T, Williams E G, Keith M L. 1957. Environmental studies of Carboniferous sediments, part I: geochemical criteria for differentiating marine from fresh-water shales. AAPG Bulletin, 41(11): 2427-2455. doi: 10.1306/0BDA59A5-16BD-11D7-8645000102C1865D URL
[47]	Dong Y P, Sun S S, Santosh M, Zhao J, Sun J P, He D F, Shi X H, Hui B, Cheng C, Zhang G W. 2021. Central China Orogenic Belt and amalgamation of East Asian continents. Gondwana Research, 100: 131-194. doi: 10.1016/j.gr.2021.03.006 URL
[48]	Elderfield H, Greaves M J. 1982. The rare earth elements in seawater. Nature, 296: 214-219. doi: 10.1038/296214a0
[49]	Emerson S R, Huested S S. 1991. Ocean Anoxia and the concentrations of molybdenum and vanadium in seawater. Marine Chemistry, 34(3-4): 177-196. doi: 10.1016/0304-4203(91)90002-E URL
[50]	Fedo C M, Nesbitt H W, Young G M. 1995. Unraveling the effects of potassium metasomatism in sedimentary rocks and paleosols,with implications for paleoweathering conditions and provenance. Geology, 23(10): 921-924. doi: 10.1130/0091-7613(1995)023<0921:UTEOPM>2.3.CO;2 URL
[51]	Hanor J S, Chan L H. 1977. Non-conservative behavior of barium during mixing of Mississippi River and Gulf of Mexico waters. Earth and Planetary Science Letters, 37(2): 242-250. doi: 10.1016/0012-821X(77)90169-8 URL
[52]	Harnois L. 1988. The CIW index: a new chemical index of weathering. Sedimentary Geology, 55(3-4): 319-322. doi: 10.1016/0037-0738(88)90137-6 URL
[53]	Hatch J R, Leventhal J S. 1992. 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. Chemical Geology, 99: 65-82. doi: 10.1016/0009-2541(92)90031-Y URL
[54]	Jiang Z R, Ran B, Li Z W, Liu S G, Wang Z J, Han Y Y, Lü F, Jiang X. 2023. A Late Triassic depositional age for the Xujiahe Formation,Sichuan Basin: implications for the closure of the Paleo-Tethys Ocean. Marine and Petroleum Geology, 155: 106346.
[55]	Lerman A. 1978. Lakes:Chemistry,Geology,Physics. New York: Springer-Verlag,1-366.
[56]	Li J H, Dong S W, Cawood P A, Zhao G C, Johnston S T, Zhang Y Q, Xin Y J. 2018. An Andean-type retro-arc foreland system beneath northwest South China revealed by SINOPROBE profiling. Earth and Planetary Science Letters, 490: 170-179. doi: 10.1016/j.epsl.2018.03.008 URL
[57]	Li X H, Wang J Y, Rasbury T, Zhou M, Wei Z, Zhang C K. 2020. Early Jurassic climate and atmospheric CO₂ concentration in the Sichuan paleobasin,southwestern China. Climate of the Past, 16(6): 2055-2074. doi: 10.5194/cp-16-2055-2020 URL
[58]	Liu S F, Steel R, Zhang G W. 2005. Mesozoic sedimentary basin development and tectonic implication,northern Yangtze Block,eastern China: record of continent-continent collision. Journal of Asian Earth Sciences, 25(1): 9-27. doi: 10.1016/j.jseaes.2004.01.010 URL
[59]	Liu S G, Yang Y, Deng B, Zhong Y, Wen L, Sun W, Li Z W, Jansa L, Li J X, Song J M, Zhang X H, Peng H L. 2021. Tectonic evolution of the Sichuan Basin,Southwest China. Earth-Science Reviews, 213: 103470. doi: 10.1016/j.earscirev.2020.103470 URL
[60]	Liu Z H, Algeo T J, Brocks J J, Maldegem L M, Gilleaudeau G J, Kah L C, Cheng M, Yu W C. 2024. Salinity reconstruction in Proterozoic depositional systems. Geological Society of America Bulletin, 137(1-2): 447-464. doi: 10.1130/B37489.1 URL
[61]	McLennan S M, Hemming S, McDaniel D K, Hanson G N. 1993. Geochemical approaches to sedimentation,provenance,and tectonics. Geological Society of America Special Papers, 284: 21-40.
[62]	Meng Q R, Wang E, Hu J M. 2005. Mesozoic sedimentary evolution of the northwest Sichuan basin: implication for continued clockwise rotation of the South China Block. Geological Society of America Bulletin, 117(3-4): 396-410. doi: 10.1130/B25407.1 URL
[63]	Nesbitt H W, Young G M. 1984. Prediction of some weathering trends of plutonic and volcanic rocks based on thermodynamic and kinetic considerations. Geochimica et Cosmochimica Acta, 48(7): 1523-1534. doi: 10.1016/0016-7037(84)90408-3 URL
[64]	Pattan J N, Pearce N J G, Mislankar P G. 2005. Constraints in using Cerium-anomaly of bulk sediments as an indicator of paleo bottom water redox environment: a case study from the Central Indian Ocean Basin. Chemical Geology, 221: 260-278. doi: 10.1016/j.chemgeo.2005.06.009 URL
[65]	Peng J W, Hu Z Q, Feng D J, Wang Q R. 2022. Sedimentology and sequence stratigraphy of lacustrine deep-water fine-grained sedimentary rocks: the Lower Jurassic Dongyuemiao Formation in the Sichuan Basin,western China. Marine and Petroleum Geology, 146: 105933.
[66]	Qi L, Hou M C, Mulder J A, Cawood P A, Guo Y, Wu S T, Jiao L X, Zhang X L, Ouyang H. 2024. In situ U-Pb dating of Jurassic dinosaur bones from Sichuan Basin,South China. Geology, 52(3): 216-221. doi: 10.1130/G51872.1 URL
[67]	Shields G, Stille P. 2001. Diagenetic constraints on the use of cerium anomalies as palaeoseawater redox proxies: an isotopic and REE study of Cambrian phosphorites. Chemical Geology, 175(1-2): 29-48. doi: 10.1016/S0009-2541(00)00362-4 URL
[68]	Taylor G J, Ryan D, Bagby M. 1985. Toward the development of a new self-report alexithymia scale. Psychotherapy and Psychosomatics, 44(4): 191-199. doi: 10.1159/000287912 pmid: 3837277
[69]	Wignall P B, Twitchett R J. 1996. Oceanic anoxia and the end-Permian mass extinction. Science, 272: 1155-1158. pmid: 8662450
[70]	Xing L D, Miyashita T, Currie J P, You H, Zhang J P, Dong Z Ml. 2015. A New Basal Eusauropod from the Middle Jurassic of Yunnan,China,and Faunal Compositions and Transitions of Asian Sauropodomorph Dinosaurs. Acta Palaeontologica Polonica, 60(1): 145-154.
[71]	Xu X B, Liang C H, Chen J J, Xu Y D. 2021. Provenance analysis of Jurassic basins along Chaling-Chenzhou-Linwu fault,South China: implications for palaeogeographic reconstruction and Mesozoic tectonic transition. Geological Journal, 56(5): 2656-2675. doi: 10.1002/gj.v56.5 URL
[72]	Zhang Z, Zheng Q F, Zhang H, Wang Q, Shi Y L. 2022. Late Mesozoic multi-plate convergence in East Asia: insights from 3-D global mantle flow models. Tectonophysics, 845: 229636.

Please choose a citation manager

Content to export