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Journal of Earth Science 2024年第1期35卷 167-176页

作者： Xiao Shi Jianxin Yu yuewu sun Zhen Xu Hui Li College of Earth Sciences Jilin UniversityChangchun 130061China International Center of Future Science Dinosaur Evolution Research CenterJilin UniversityChangchun 130012China State Key Laboratory of Biogeology and Environmental Geology School of Earth SciencesChina University of GeosciencesWuhan 430074China Research Center of Palaeontology and Stratigraphy Jilin UniversityChangchun 130026China Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation East China University of TechnologyNanchang 330013China

The Permian-Triassic transition saw extreme climatic changes that severely impacted the terrestrial *** plants,particularly fossil woods,are sensitive to climatic changes,and they,therefore,are unique materials revealing extreme environmental and climatic changes on land at that *** conifer woods were discovered in the Lopingian(Late Permian)strata of the sunjiagou Formation in Shanxi Province,North *** newly finding permineralized woods record the unique landscape of Lopingian North *** represent a new conifer genus and species:Shanxiopitys zhangziensis *** *** of growth pattern and anatomical characteristics of the fossil woods indicate these trees grew under optimal growing conditions,and without seasonal growth ***,climate signals from leaf fossils,vertebrate fossils and sedimentary evidences indicate a strongly seasonal climate in North China during the ***,it is speculated that these trees likely lived in the gallery forests,which were distributed along the paleo-rivers within a seasonal landscape in the central North China block during the Lopingian.

关键词： Shanxiopitys zhangziensis gen.et sp.nov. wood ecology geography gallery forest Lopingian North China

Fossil Woods from the Early Pennsylvanian Karamaili Area,Xinjiang,Northwest China

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Acta Geologica Sinica(English Edition) 2020年第5期94卷 1716-1717页

作者： SHI Xiao sun yuewu HUANG Rui Key Laboratory for Evolution of Past Life and Environment in Northeast Asia(Jilin University) Ministry of EducationChangchun 130026China College of Earth Sciences Jilin UniversityChangchun 130012China Research Center of Palaeontology and Stratigraphy Changchun 130026China

Objective The Carboniferous is a key period of Earth *** average global temperatures were high in the early Carboniferous *** new plants evolved in the warm,humid climate conditions of this *** it cooled during the mi... 详细信息

关键词： period. Carboniferous Northwest

A Spore-Pollen Assemblage from the Damoguaihe Formation in the Tamutsag Basin, Mongolia and Its Geological Implication

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Acta Geologica Sinica(English Edition) 2014年第1期88卷 46-61页

作者： WANG Liyan WAN Chuanbiao sun yuewu College of Geosciences Jilin University Research Center of Paleontology and Stratigraphy Jilin University Exploration and Development Research Institute of Daqing Oilfield Company Limited

Based on the palynological data from Well Ta-19-36 and Well Ta-19-37 in the Ta＇nan Sag, and Well Ta-22-1 and Well Ta-21-1 in the Bayin Gobi Sag, a spore-pollen assemblage from the Damoguaihe Formation is named as Cicatricosisporites minutaestriatus- Aequitriradites spinulosus-Protopinus sp. assemblage in the Tamutsag Basin, Mongolia. The assemblage is characterized by abundant gymnosperm pollen and diverse fern spores, counted 46.35%–65.57% and 34.43%–52.58% in percentage respectively. Among the gymnosperm pollen, Pinuspollenites sp.（2.66%–16.94%）, Protopinus sp.（0–11.38%） and Protopicea sp.（0–10.81%） are dominant; and Alisporites sp., Cerebropollenites sp., Podocarpidites sp., and Abietineaepollenites sp. are common. Some important elements, such as Chasmatosporites sp., Callialasporites prominulus, Parvisaccites sp., Parcisporites sp., Jiaohepollis cf. annulatus, J. bellus, J. verus, Polycingulatisporites sp., Schizaeoisporites certus, Classopollis annulatus are seen. Within the fern spores, Osmundacidites wellamanii（0.85%–4.93%）, Appendicisporites sp.（0–4.45%）, Baculatisporites comaumensis（0.80%–2.87%）, Cicatricosisporites sp.（0.51%–2.66%）, C. minor（0–2.14%）, Foraminisporis asymmetricus（0–2.40%）, Aequitriradites sp.（0– 2.19%） and Cyathidites minor（0–2.13%） are dominant; and some specie of Densoisporites, Cooksonites, Impardecispora, Pilosisporites, Schizaeosprites, Fixisporites, Leptolepidites, Trilobosporites, Kuylisporites, Klukisporites, Hsuisporites, Couperisporites, Maculatisporites are seen. The angiosperm pollen are rare in the assemblage, characterized by Clavatipollenites sp.（0–0.80%） and Songipollis sp.（0–0.27%）. The geological age of the Damoguaihe Formation is assigned to Hauterivian – Barremian of Early Cretaceous according to the palynological data, due to the fact that there existed a lot of diverse spores of the family Schizaeaceae and prosperous gymnosperm saccat pollen which the corpus and sacci are differentiated completely, and the presence of

关键词： Paleoclimate spore-pollen assemblage Early Cretaceous Damoguaihe Formation Tamutsag Basin

Cretaceous Volcanic Events in Southeastern Jilin Province,China:Evidence from Single Zircon U-Pb Ages

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Acta Geologica Sinica(English Edition) 2008年第6期82卷 1194-1200页

作者： CHEN Yuejun sun Chunlin sun yuewu sun Wei Research Center of Paleontology and Stratigraphy Jilin University Changchun JiIin 130026

Mesozoic volcanic rocks in southeastern Jilin Province are an important component of the huge Mesozoic volcanic belt in the northeastern area. Study of the age of their formation is of great significance to recognize Mesozoic volcanic rule in northeastern China. Along with the research of rare Mesozoic biota and extensive Mesozoic mineralization in western Liaoning, a number of researchers have focused on Mesozoic volcanic events. The authors studied the ages of the Cretaceous volcanic rocks in southeastern Jilin Province using single Zircon U-Pb. The result shows that the Sankeyushu Formation volcanic rocks in the Tonghua area are 119.2 Ma in age, the Yingcheng Formation in the Jiutai area 113.4±3.1 Ma, the Jinjiatun Formation in Pinggang Town of Liaoyuan City and the Wufeng volcanic rocks in the Yanji area 103.2±4.7 Ma and 103.6±1 Ma, respectively. Combined with the data of recent publication on volcanic rocks ages; the Cretaceous volcanic events in southeastern Jilin Province can be tentatively subdivided into three eruption periods： 119 Ma, 113 Ma and 103 Ma. The result not only provides important chronology data for subdividing Mesozoic strata in southeastern Jilin Province, establishing Mesozoic volcanic event sequence, discussing geological tectonic background, and surveying the relation between noble metals to the Cretaceous volcanic rocks, but also offers important information of Mesozoic volcanism in northeastern China.

关键词： age of zircon U-Pb volcanic event Cretaceous Jilin Province

Discovery of Late Jurassic Sporopollen Assemblage from the Tamulangou Formation in the Hongqi Sag of the Hailar Basin,Inner Mongolia,China

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Acta Geologica Sinica(English Edition) 2020年第5期94卷 1718-1720页

作者： WAN Chuanbiao XUE Yunfei sun yuewu HOU Yanping JIN Yudong ZHANG Xin LI Ti Exploration and Development Research Institute of Daqing Oilfield Company Ltd. DaqingHeilongjiang 163712China Key Laboratory for Evolution of Past Life and Environment in Northeast Asian(Jilin University) Ministry of EducationChangchun 130026China

Objective The Hailar Basin is situated in the northwestern margin of the Jiamusi-Mongolia *** was a continent marginal basin to the south of the Mongolia-Okhotsk Ocean during the Jurassic and *** basement of the basin... 详细信息

关键词： Jurassic basin Basin

Organic-rich formation and hydrocarbon enrichment of lacustrine shale strata:A case study of Chang 7 Member

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Science China Earth Sciences 2022年第1期65卷 118-138页

作者： Quanyou LIU Peng LI Zhijun JIN yuewu sun Guang HU Dongya ZHU Zhenkai HUANG Xinping LIANG Rui ZHANG Jiayi LIU State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development SINOPECBeijing 102206China Petroleum Exploration and Production Research Institute S1NOPECBeijing 102206China Institute of Energy Peking UniversityBeijing 100871China Research Center of Palaeontology and Stratigraphy Jilin UniversityChangchun 130026China School of Geoscience and Technology Southwest Petroleum UniversityChengdu 610500China

Lacustrine shale is an important target for the exploration of unconventional oil and gas in China beyond marine shale ***,the formation environment of lacustrine shale differs from that of marine shale,resulting in a different reservoir composition,organic matter,oil and gas content,and hydrocarbon *** this study,the Chang 7 shale of the Yanchang Formation in the Ordos Basin was used to analyze the effect of volcanic activity on the paleoproductivity and preservation conditions during the formation of lacustrine *** results show that algae and bacteria were developed before the *** the eruption,the number of bacteria declined,but the increased prosperity of algae reflects that the volcanic activity enhanced ancient *** sulfate generated by volcanic activity promotes bacterial sulfate reduction,and the produced H_(2)S leads to a strong reducing environment in the waterbody,which is conducive to the preservation of organic *** geochemical analysis shows that the black shale in the shale strata has a high total organic carbon(TOC)content and strong hydrocarbon generation potential,whereas the tuff has a low TOC content and can scarcely generate hydrocarbons,indicating that the tuff deposited by volcanic activity cannot be considered as effective source *** terms of storage space,shale is mainly laminar and dispersed,and it includes organic and inorganic *** development of organic pores is affected by thermal maturity,whereas inorganic pores mainly occur between detrital particles and *** is mainly supported by heterogeneous matrix and associated with *** pores include inter-and intragranular mineral *** development of tight sandstone pores is affected by compaction,cementation,and dissolution,which mainly consist of intra-and intergranular *** Chang 7 lacustrine shale generally contains oil,but different lithologies have different oil drainage *** and

关键词： Lacustrine shale Organic-rich Volcanic activity Pore structure Oiliness

Sporopollen Assemblages from the Cretaceous Yimin Formation of the Hailar Basin,Inner Mongolia,China

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Acta Geologica Sinica(English Edition) 2005年第4期79卷 459-470页

作者： WAN Chuanbiao QIAO Xiuyun XU Yanbin sun yuewu REN Yanguang JIN Yudong GAO Ping LIU Tongyan Exploration and Development Research Institute of Daqing Oilfield Company Ltd. Daqing Heilongjiang 163712 College of Earth Sciences Jilin University Changchun Jilin 130061 Research Center of Paleontology and Stratigraphy Jilin University Changchun Jilin 130026

Three sporopollen assemblages are recognized for the first time from the Cretaceous Yimin Formation in the Hailar Basin of eastern Inner Mongolia. They are （in ascending order）： the lmpardecispora-Aequitriradites- Clawttipollenites assemblage; the Triporoletes-Pilosisporites-Asteropollis assemblage; and the Appendicisporites- Asteropollis-Tricolpites assemblage, distributed in Members 1, 2 and 3 of the Yimin Formation respectively. Recognition of this biostratigraphic sequence is very important for the division and correlation of the Yimin Formation in the basin. Meanwhile, the age of the Yimin Formation is considered to be Barremian to Early Albian based on the palynological data.

关键词： Cretaceous Barremian-Early Albian sporopollen assemblage angiosperms Hailar Basin Inner Mongolia

Discovery of Late Permian Jianshanzi volcanic rocks in Qinghe valley of northern Liaoning and its geologic significance

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Global Geology 2008年第3期11卷 145-149页

作者： Yuejun CHEN Chunlin sun yuewu sun Research Center of Palaeontology ＆ Stratigraphy Jilin University Changchun 130026 China

Jianshanzi volcanic rocks at Qinghe valley in the northern Liaoning were considered belonging to Early Proterozoie Gaojiayu Formation of Liaohe Group, or to Early Cambrian Beidagou Formation of Qinghezhen Group, or Middle-Late Proterozoic Shenjiapu Formation-Complex of Kaiyuan Group-complex. Dating the zircons from the dacite with schistosity is 2 506 Ma in method of U-Pb （SHRIMP）. This evidence indicates the rocks may be referred to Late Permian in age. Discovery of the rocks is significant to re-recognize stratigraphic property of ＂Liaohe Group＂, regional geoteetonie location and revolution of orogenic zone in Qinghe valley of the northern Liaoning.

关键词： Jianshanzi volcanic rocks Liaohe Group Qinghe valley northern Liaoning

Some conifers from Aptian in Yanbian area of Jilin, Northeast China

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Global Geology 2013年第2期16卷 59-67页

作者： ZHAO Guowei sun yuewu ZHANG Ying Research Center of Paleontology and Stratigraphy Jilin University College of Earth Sciences Jilin University Key Laboratory for Evolution of Past Life and Environment in Northeast Asia Ministry of Education (Jilin University) International Center for Geoscience Research and Education in Northeast Asia Jilin University

Some well-preserved conifer leafy shoots and female cones from the Lower Cretaceous Changcai For- mation near Fudong of Helong, eastern Jilin, Northeast China are studied. Based on gross morphological and cuticular study, a new species, Elatides helongensis sun et Zhao （ sp. nov. ） is described systematically. The new species is characterized by persistent, linear or slightly falcate leaves with obtusely acute apex, attached helically on the shoots. Female cones of the new species are terminal and oval, composed of persistent helically- arranged rhomboidal scales and erect seeds. One erect seed is growing on each scale. Leaf cuticles are hyposto- matic. Monocylic stomata are ellipse, composed of 2 sunken guard ceils and 4-8 subsidiary cells. Moreover, the cuticles of a young female cone of Pityostrobus yingchengensis Yang are described for the first time.

关键词： Elatides Pityostrobus cuticle Cretaceous Changcai Formation

Early Jurassic Flora and Stratigraphy from Shansonggang of Southern Jilin,China

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Global Geology 2003年第1期8卷 21-25页

作者： Fengxiang Liu yuewu sun Chunlin sun Jiansheng Lu Yanhua Zhao Research Center of Palaeontology and Stratigraphy Jilin UniversityResearch Center of Palaeontology and StratigraphyJilin UniversityResearch Center of Palaeontology and StratigraphyJilin UniversityResearch Center of Palaeontology and StratigraphyJilin UniversityRegional Geological Survey of Jilin Province Changchun130026 ChinaChangchun130026 ChinaChangchun130026 ChinaChangchun130026 ChinaChangchun 130022 China

More than 35 species belonging to 22 genera of fossil plants are recognized by the authors from the Shan-songgang flora in the Shansonggang Basin of Jilin, China. Among them, the coexistence of Coniopteris and Cycadocarpi-dium demonstrates that the present flora possesses the characters of the early assemblage of Early Jurassic floras in Eura-sia. Therefore, the age of the Shansonggang flora is considered the Early *** study would be beneficial for bet-ter understanding the paleoecological and paleoclimatic characteristics of the Shansonggang Basin. Based mainly on the characters of the flora, the authors suggest that the Lower Jurassic coal-bearing strata, the Shansongang Formation, should namely be renewed.

关键词： Early Jurassic, flora, Shansonggang Formation, Shansonggang Basin, Jilin