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Advances in the Study of the Non-Marine Ostracods in Luanping Basin, Northern Hebei (North China): A Preliminary Result 预览
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作者 Zuohuan Qin Dangpeng Xi +2 位作者 Benjamin Sames Qiqing Pang Xiaoqiao Wan 《地质学期刊(英文)》 2019年第10期601-604,共4页
The Luanping Basin of northern Hebei, North China, is well known for its continuous nonmarine Lower Cretaceous deposits and the preservation of the Jehol Biota. However, there are still some controversies about the st... The Luanping Basin of northern Hebei, North China, is well known for its continuous nonmarine Lower Cretaceous deposits and the preservation of the Jehol Biota. However, there are still some controversies about the stratigraphic correlation in these regions. Here we report some advances on the study of the nonmarine ostracods of Luanping, focusing on its biostratigraphical utility. Preliminary results indicate that the nonmarine ostracods from Luanping Basin consist of 17 genera and around 44 species. The ostracod assemblages of the Dabeigou, Dadianzi and Xiguayuan formations of this Basin can be assigned to the Luanpingella-Ocrocypris-Eoparacypris (Late Valanginian-Early Hauterivian age), Cypridea-Timiriasevia-Daurina (Late Huaterivian-Barremian age) and Cypridea-Limnocypridea-Lycopterocypris (Aptian stage) zones, respectively. This temporary framework can be served as a stratigraphic correlation tool in northern Hebei, as well as contributed to a better understanding of the evolution of the Jehol Biota. 展开更多
关键词 OSTRACODA BIOSTRATIGRAPHY Luanping Basin Early CRETACEOUS Jehol BIOTA
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A Research of the Cretaceous-Paleogene Boundary in the Pingyi Basin, Shandong Province 预览
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作者 Jun Chen Shengxian Du +7 位作者 Cheng Chen Fengchen Liu Zhengguo Ning Xiangsuo Song Shucai Liu Huinan Lu Yongqing Liu Hongwei Kuang 《地质学期刊(英文)》 2019年第10期661-664,共4页
The Bianqiao Formation (in the Pingyi Basin, Shandong Province, China) is a typical set of continuous lacustrine carbonate deposits during the Cretaceous-Paleogene period, which is considered as an ideal stratigraphic... The Bianqiao Formation (in the Pingyi Basin, Shandong Province, China) is a typical set of continuous lacustrine carbonate deposits during the Cretaceous-Paleogene period, which is considered as an ideal stratigraphic unit for KPB research. This study is based on the borehole PYZK01, which is located at Tongjiazhuang village in Bianqiao Town of Pingyi country. According to biostratigraphy research, the Bianqiao Formtion establishes one charophyte assemblage: Porocharaanluensis-Charayuntaishanensis var. acuta-Turbocharaspecialis, and one sporopollen assemblage: Deltoidosporaadriensis-Rugubivesiculites- Schizaeoisporites. This result indicates that the stratigraphic age during 0 - 12.25 m is the Paleogene, 37.8 m - 60 m is the Late Cretaceous, and 12.25 - 37.8 m is a transition stage from the Late Cretaceous to the Paleocene. By geochemical study, it was established carbon and oxygen isotopic strata in the drill. Through the magnetostratigraphy research, we find eight positive polarity zones and seven reversed polarity zones, build the magnetic polarity sequences of the borehole, and propose a contrast scheme with the international standard magnetic polarity time column. After comprehensive discussion, it is preliminarily believed that the Cretaceous-Paleogene boundary is located at the depth of 31.98 m in PYZK01, namely, in the first section of the Bianqiao Fm. 展开更多
关键词 Cretaceous-Paleogene BOUNDARY BIOSTRATIGRAPHY Isotopic STRATIGRAPHY MAGNETOSTRATIGRAPHY Pingyi BASIN
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Comparison of the Palaeomagnetic Parameters of Non-Marine Jurassic-Cretaceous Boundary Sediments in Dorset (SW England), Hebei and Liaoning (NE China)—A Preliminary Study 预览
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作者 Petr Schnabl Gang Li +6 位作者 ?imon Kdyr Gunther Kletetschka Petr Skupien Andrea Svobodová Karolína Hladíková Meizhen Cao William A. P. Wimbledon 《地质学期刊(英文)》 2019年第10期654-657,共4页
The Purbeck beds in Dorset, the Tuchengzi Formation in western Liaoning Liaoning Province or the Houcheng Formation in northern Hebei Province are non-marine Jurassic/Cretaceous (J/K) boundary sequences. A Czech-China... The Purbeck beds in Dorset, the Tuchengzi Formation in western Liaoning Liaoning Province or the Houcheng Formation in northern Hebei Province are non-marine Jurassic/Cretaceous (J/K) boundary sequences. A Czech-China Inter-Governmental S&T Cooperation Project has been carried out to search for the non-marine J/K boundary in northern China and making international correlation with the Purbeck beds in southern England. The combination of palaeomagnetism and biostratigraphy in northern China and southern England localities proves that these distant places had similar climatic conditions and the same fauna during the Late Jurassic and Early Cretaceous. A preliminary joint research has shown a fruitful result in searching for the non-marine J/K boundary in northern China. 展开更多
关键词 JURASSIC-CRETACEOUS BOUNDARY DORSET Northern Hebe Western LIAONING PALAEOMAGNETISM Biostratigraphy
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三叠系的阶与牙形刺生物地层 预览
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作者 王成源 郎嘉彬 《世界地质》 CAS 2019年第1期20-33,共14页
三叠纪的3统7阶时限相差极大,晚三叠世的时限最长。牙形刺是三叠纪生物地层的主导化石门类,在生物地层划分中的作用越来越重要。中国三叠纪牙形刺生物地层的牙形刺带已达50带,还会增加,特别是在晚三叠世。阶是全球的地质年代单位,应全... 三叠纪的3统7阶时限相差极大,晚三叠世的时限最长。牙形刺是三叠纪生物地层的主导化石门类,在生物地层划分中的作用越来越重要。中国三叠纪牙形刺生物地层的牙形刺带已达50带,还会增加,特别是在晚三叠世。阶是全球的地质年代单位,应全球统一,使用共同的名称和定义。不要按国别建阶,更不能按岩相或生物群建阶。陆相地层不适宜建阶,陆相地层的阶名也不宜再使用。 展开更多
关键词 陆相阶 牙形刺 生物地层
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Devonian integrative stratigraphy and timescale of China
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作者 Wenkun QIE Xueping MA +6 位作者 Honghe XU Li QIAO Kun LIANG Wen GUO Junjun SONG Bo CHEN Jianfeng LU 《中国科学:地球科学英文版》 SCIE EI CAS CSCD 2019年第1期112-134,共23页
The Global Boundary Stratotype Sections and Points(GSSPs) for the bases of all seven international Devonian stages have been formally defined and ratified by IUGS till 1996, and nowadays, the main tasks for Devonian s... The Global Boundary Stratotype Sections and Points(GSSPs) for the bases of all seven international Devonian stages have been formally defined and ratified by IUGS till 1996, and nowadays, the main tasks for Devonian stratigraphers include further subdivision of these standard stages, strictly constrained absolute ages for the boundaries, and precise neritic-pelagic and marine-terrestrial correlations using multidisciplinary stratigraphy methods. Establishment of high-resolution Devonian integrative stratigraphy framework and timescale of China would play an important role in improving regional and international correlation, facilitating the recognition of important stratigraphic levels in different paleogeographic settings, and understanding the evolution pattern of biota, paleoclimate and paleoenvironment during this critical interval. Based on well-studied bio-and chronostratigraphy of Devonian in South China and adjacent areas, in combination with recent achievements in carbon isotope stratigraphy, event stratigraphy and radioactive isotope ages, this paper briefly summarize the research history and current status of Devonian chronostratigraphy of China, and for the first time introduce Devonian integrative stratigraphy framework of China.Up to date, few studies have been conducted on the astronomical cyclostratigraphy and high-resolution radioactive isotope dating in Devonian of China, which should be our main focuses in the near future. 展开更多
关键词 DEVONIAN CHRONOSTRATIGRAPHY BIOSTRATIGRAPHY Carbon ISOTOPE STRATIGRAPHY Event STRATIGRAPHY
Carboniferous integrative stratigraphy and timescale of China
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作者 Xiangdong WANG Keyi HU +9 位作者 Wenkun QIE Qingyi SHENG Bo CHEN Wei LIN Le YAO Qiulai WANG Yuping QI Jitao CHEN Zhuoting LIAO Junjun SONG 《中国科学:地球科学英文版》 SCIE EI CAS CSCD 2019年第1期135-153,共19页
The Carboniferous period lasted about 60 Myr, from -358.9 Ma to -298.9 Ma. According to the International Commission on Stratigraphy, the Carboniferous System is subdivided into two subsystems, i.e., Mississippian and... The Carboniferous period lasted about 60 Myr, from -358.9 Ma to -298.9 Ma. According to the International Commission on Stratigraphy, the Carboniferous System is subdivided into two subsystems, i.e., Mississippian and Pennsylvanian, including 6 series and 7 stages. The Global Stratotype Sections and Points(GSSPs) of three stages have been ratified, the Tournaisian, Visean, and Bashkirian stages. The GSSPs of the remaining four stages(i.e., the Serpukhovian, Moscovian,Kasimovian, and Gzhelian) have not been ratified so far. This paper outlines Carboniferous stratigraphic subdivision and correlation on the basis of detailed biostratigraphy mainly from South China, and summarizes the Carboniferous chronostratigraphic framework of China. High-resolution biostratigraphic study reveals 37 conodont zones, 24 foraminiferal(including fusulinid) zones, 13 ammonoid zones, 10 brachiopod zones, and 10 rugose coral zones in the Carboniferous of China. The biostratigraphic framework based on these biozones warrants the precise correlation of regional stratigraphy of China(including2 subsystems, 4 series, and 8 stages) to that of the other regions globally. Meanwhile, the Carboniferous chemo-, sequence-,cyclo-, and event-stratigraphy of China have been intensively studied and can also be correlated worldwide. Future studies on the Carboniferous in China should focus on(1) the correlation between shallow-and deep-water facies and between marine and continental facies,(2) high-resolution astronomical cyclostratigraphy, and(3) paleoenvironment and paleoclimate analysis based on geochemical proxies such as strontium and oxygen isotopes, as well as stomatal indices of fossil plants. 展开更多
关键词 CARBONIFEROUS CHRONOSTRATIGRAPHY BIOSTRATIGRAPHY CHEMOSTRATIGRAPHY Event STRATIGRAPHY STRATOTYPE Stratigraphic correlation
Permian integrative stratigraphy and timescale of China
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作者 Shuzhong SHEN Hua ZHANG +11 位作者 Yichun ZHANG Dongxun YUAN Bo CHEN Weihong HE Lin MU Wei LIN Wenqian WANG Jun CHEN Qiong WU Changqun CAO Yue WANG Xiangdong WANG 《中国科学:地球科学英文版》 SCIE EI CAS CSCD 2019年第1期154-188,共35页
A series of global major geological and biological events occurred during the Permian Period. Establishing a highresolution stratigraphic and temporal framework is essential to understand their cause-effect relationsh... A series of global major geological and biological events occurred during the Permian Period. Establishing a highresolution stratigraphic and temporal framework is essential to understand their cause-effect relationship. The official International timescale of the Permian System consists of three series(i.e., Cisuralian, Guadalupian and Lopingian in ascending order) and nine stages. In China, the Permian System is composed of three series(Chuanshanian, Yansingian and Lopingian) and eight stages, of which the subdivisions and definitions of the Chuanshanian and Yangsingian series are very different from the Cisuralian and Guadalupian series. The Permian Period spanned ~47 Myr. Its base is defined by the First Appearance Datum(FAD) of the conodont Streptognathodus isolatus at Aidaralash, Kazakhstan with an interpolated absolute age 298.9±0.15 Ma at Usolka, southern Urals, Russia. Its top equals the base of the Triassic System and is defined by the FAD of the conodont Hindeodus parvus at Meishan D section, southeast China with an interpolated absolute age 251.902±0.024 Ma. Thirty-five conodont, 23 fusulinid, 17 radiolarian and 20 ammonoid zones are established for the Permian in China, of which the Guadalupian and Lopingian conodont zones have been served as the standard for international correlation. The Permian δ13 Ccarbtrend indicates that it is characterized by a rapid negative shift of 3–5‰ at the end of the Changhsingian, which can be used for global correlation of the end-Permian mass extinction interval, but δ13 Ccarbrecords from all other intervals may have more or less suffered subsequent diagenetic alteration or represented regional or local signatures only. Permian δ18 Oapatitestudies suggest that an icehouse stage dominated the time interval from the late Carboniferous to Kungurian(late Cisuralian). However, paleoclimate began to ameriolate during the late Kungurian and gradually shifted into a greenhouse-dominated stage during the Guadalupian.The Changhsingian was a relatively cool stage, foll 展开更多
关键词 PERMIAN TIMESCALE global correlation BIOSTRATIGRAPHY CHEMOSTRATIGRAPHY
Triassic integrative stratigraphy and timescale of China
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作者 Jinnan TONG Daoliang CHU +5 位作者 Lei LIANG Wenchao SHU Haijun SONG Ting SONG Huyue SONG Yuyang WU 《中国科学:地球科学英文版》 SCIE EI CAS CSCD 2019年第1期189-222,共34页
The Triassic rocks are widespread in China, and both marine and terrestrial strata are well developed. The Triassic stratigraphic architecture of China is very complex in both spatial variation of the so-called "... The Triassic rocks are widespread in China, and both marine and terrestrial strata are well developed. The Triassic stratigraphic architecture of China is very complex in both spatial variation of the so-called "South Marine and North Continental", i.e. the southern areas of China occupied mostly by marine facies while the northern China by terrestrial facies during the Triassic Period, and temporal transition of the "Lower Marine and Upper Continental", i.e. the lower part of the Triassic System composed mainly of marine facies and the upper part of terrestrial strata especially in South China. Although the Global Stratotype Section and Point(GSSP) of the Permian-Triassic boundary is located in South China, the Triassic of China except for some marine Lower-Middle Triassic depositions shows significantly local characteristics and is hardly correlated with the global chronostratigraphic chart. Consequently, the Triassic of China contains not only the international research hotspots but also difficult points in stratigraphic study. This paper aims to present a brief review of the Triassic in China, including chronostratigraphy, biostratigraphy, magnetostratigraphy and chemostratigraphy, and summarize an integrated Triassic stratigraphic framework of China. Accordingly, a stratigraphic correlation is proposed for the lithostratigraphic sequences among the three tectono-paleogeographic stratigraphic regions. The comprehensive study indicates that ammonoids are the classic index fossils in Triassic biostratigraphy but conodonts are more advantageous in the study and definition of the Triassic chronostratigraphic boundaries. China still has the potential to optimize the GSSPs of the Induan-Olenekian boundary and Olenekian-Anisian boundary. The correlation of the Permian-Triassic boundary between marine and terrestrial facies might be achieved with the help of the Permian-Triassic "transitional bed" and its related biotic and environmental events in association with the biostratigraphic study of conchostracan, vertebra 展开更多
关键词 TRIASSIC CHRONOSTRATIGRAPHY BIOSTRATIGRAPHY MAGNETOSTRATIGRAPHY CHEMOSTRATIGRAPHY LITHOSTRATIGRAPHY Stratigraphic correlation China
Jurassic integrative stratigraphy and timescale of China
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作者 Diying HUANG 《中国科学:地球科学英文版》 SCIE EI CAS CSCD 2019年第1期223-255,共33页
The Jurassic stratigraphy in China is dominated by continental sediments. Marine facies and marine-terrigenous facies sediment have developed locally in the Qinghai-Tibet area, southern South China, and northeast Chin... The Jurassic stratigraphy in China is dominated by continental sediments. Marine facies and marine-terrigenous facies sediment have developed locally in the Qinghai-Tibet area, southern South China, and northeast China. The division of terrestrial Jurassic strata has been argued, and the conclusions of biostratigraphy and isotope chronology have been inconsistent.During the Jurassic period, the North China Plate, South China Plate, and Tarim Plate were spliced and formed the prototype of ancient China. The Yanshan Movement has had a profound influence on the eastern and northern regions of China and has formed an important regional unconformity. The Triassic-Jurassic boundary(201.3 Ma) is located roughly between the Haojiagou Formation and the Badaowan Formation in the Junggar Basin, and between the Xujiahe Formation and the Ziliujing Formation in the Sichuan Basin. The early Early Jurassic sediments generally were lacking in the eastern and central regions north of the ancient Dabie Mountains, suggesting that a clear uplift occurred in the eastern part of China during the Late Triassic period when it formed vast mountains and plateaus. A series of molasse-volcanic rock-coal strata developed in the northern margin of North China Craton in the Early Jurassic and are found in the Xingshikou Formation, Nandailing Formation, and Yaopo Formation in the West Beijing Basin. The geological age and markers of the boundary between the Yongfeng Stage and Liuhuanggou Stage are unclear. About 170 Ma ago, the Yanshan Movement began to affect China. The structural system of China changed from the near east-west Tethys or the Ancient Asia Ocean tectonic domain to the north-north-east Pacific tectonic domain since 170–135 Ma. A set of syngenetic conglomerate at the bottom of the Haifanggou or Longmen Fms. represented another set of molasse-volcanic rock-coal strata formed in the Yanliao region during the Middle Jurassic Yanshan Movement(Curtain A1). The bottom of the conglomerate is approximately equivalent to the boundary of t 展开更多
关键词 Continental JURASSIC BIOSTRATIGRAPHY Isotope CHRONOLOGY Age frame Yanshan Movement Yanliao BIOTA
Cretaceous integrative stratigraphy and timescale of China
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作者 Dangpeng XI Xiaoqiao WAN +1 位作者 Guobiao LI Gang LI 《中国科学:地球科学英文版》 SCIE EI CAS CSCD 2019年第1期256-286,共31页
Cretaceous strata are widely distributed across China and record a variety of depositional settings. The sedimentary facies consist primarily of terrestrial, marine and interbedded marine-terrestrial deposits, of whic... Cretaceous strata are widely distributed across China and record a variety of depositional settings. The sedimentary facies consist primarily of terrestrial, marine and interbedded marine-terrestrial deposits, of which marine and interbedded facies are relatively limited. Based a thorough review of the subdivisions and correlations of Cretaceous strata in China, we provide an up-to-date integrated chronostratigraphy and geochronologic framework of the Cretaceous system and its deposits in China.Cretaceous marine and interbedded marine-terrestrial sediments occur in southern Tibet, Karakorum, the western Tarim Basin,eastern Heilongjiang and Taiwan. Among these, the Himalayan area has the most complete marine deposits, the foraminiferal and ammonite biozonation of which can be correlated directly to the international standard biozones. Terrestrial deposits in central and western China consist predominantly of red, lacustrine-fluvial, clastic deposits, whereas eastern China, a volcanically active zone, contains clastic rocks in association with intermediate to acidic igneous rocks and features the most complete stratigraphic successions in northern Hebei, western Liaoning and the Songliao Basin. Here, we synthesise multiple stratigraphic concepts and charts from southern Tibet, northern Hebei to western Liaoning and the Songliao Basin to produce a comprehensive chronostratigraphic chart. Marine and terrestrial deposits are integrated, and this aids in the establishment of a comprehensive Cretaceous chronostratigraphy and temporal framework of China. Further research into the Cretaceous of China will likely focus on terrestrial deposits and mutual authentication techniques(e.g., biostratigraphy, chronostratigraphy, magnetostratigraphy and cyclostratigraphy). This study provides a more reliable temporal framework both for studying Cretaceous geological events and exploring mineral resources in China. 展开更多
关键词 CRETACEOUS Stage/age BIOSTRATIGRAPHY CHRONOSTRATIGRAPHY MAGNETOSTRATIGRAPHY CYCLOSTRATIGRAPHY STRATIGRAPHIC correlation China
Paleogene integrative stratigraphy and timescale of China
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作者 Yuanqing WANG Qian LI +3 位作者 Bin BAI Xun JIN Fangyuan MAO Jin MENG 《中国科学:地球科学英文版》 SCIE EI CAS CSCD 2019年第1期287-309,共23页
The Paleogene is the first period after the Mesozoic Mass Extinction. Mammals become the dominant group in the terrestrial ecosystem with a rapid radiation, and Asia has been considered to be the origin place of sever... The Paleogene is the first period after the Mesozoic Mass Extinction. Mammals become the dominant group in the terrestrial ecosystem with a rapid radiation, and Asia has been considered to be the origin place of several mammalian groups.The Paleogene System consists mostly of terrestrial deposits in Asia, especially in East Asia. A well-established regional chronostratigraphic framework is the foundation for understanding both the Paleogene geologic history and evolutionary history of Asia and their relationships. The Paleogene is subdivided into the Paleocene, Eocene and Oligocene in the International Chronostratigraphic Chart. Based on the land mammal ages, the Chinese terrestrial Paleogene can be subdivided into 11 stages:the Shanghuan, Nongshanian and Bayanulanian stages of the Paleocene, the Lingchan, Arshantan, Irdinmanhan, Sharamurunian,Ulangochuian and Baiyinian stages of the Eocene, and the Ulantatalian and Tabenbulukian stages of the Oligocene. These stages have distinctive paleontological characters, with special significance of fossil mammals, which provide a reliable practical basis.The bases of the Shanghuan, Lingchan, and Ulantatalian stages are coincident respectively with those of the Paleocene, Eocene and Oligocene. The ages for their bases are determined as 66.0, 56.0 and 33.9 Ma, respectively, following that for the corresponding series in the International Chronostratigraphic Chart. For other stages, estimated ages are provided based on available paleomagnetic results. 展开更多
关键词 PALEOGENE Correlation BIOSTRATIGRAPHY MAGNETOSTRATIGRAPHY CHRONOSTRATIGRAPHY
新疆巴里坤下泥盆统大南湖组的厘定与生物地层分析 预览
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作者 初建朋 孙荣涛 +2 位作者 亓辉 杨怀龙 赵文皓 《新疆地质》 CAS CSCD 北大核心 2019年第3期343-347,共5页
依据岩性、岩相及古生物等资料,将新疆巴里坤一带的一套早泥盆世地层厘定为下泥盆统大南湖组,并可分为下上两部分:下部以沉积碎屑岩为主,上部以火山岩和火山碎屑岩为主;从阿也尔苏剖面中采集到的Atrypa、Ca marotoechia、Howellella、Me... 依据岩性、岩相及古生物等资料,将新疆巴里坤一带的一套早泥盆世地层厘定为下泥盆统大南湖组,并可分为下上两部分:下部以沉积碎屑岩为主,上部以火山岩和火山碎屑岩为主;从阿也尔苏剖面中采集到的Atrypa、Ca marotoechia、Howellella、Megastrophia和Leptaenopyxis等腕足化石,可与准噶尔盆地西部下泥盆统顶部的芒克鲁组、东部下泥盆统托让格库都克组等地层对比,化石组合呈现早泥盆世晚期(埃姆斯期)特征。生物地理区系分析认为,该地腕足动物同新疆北部准噶尔、东北北部、内蒙古等地同属老世界大区的巴尔喀什-蒙古-鄂霍茨克区。通过生物地层的分析,使研究区该组地质时代有了确切的化石依据,有利于该地泥盆纪地层层序的厘定和地层格架的完善。 展开更多
关键词 新疆 巴里坤 大南湖组 生物地层 生物地理区系
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Neogene integrative stratigraphy and timescale of China
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作者 Tao DENG Sukuan HOU Shiqi WANG 《中国科学:地球科学英文版》 SCIE EI CAS CSCD 2019年第1期310-323,共14页
The widely exposed Chinese Neogene terrestrial deposits provide the best circumstance for the establishment of an accurate chronostratigraphic system of Eurasia, and the rapidly evolved mammalian fossils contribute ef... The widely exposed Chinese Neogene terrestrial deposits provide the best circumstance for the establishment of an accurate chronostratigraphic system of Eurasia, and the rapidly evolved mammalian fossils contribute efficiently to the division and correlation of Asian Neogene strata. A uniform Neogene biostratigraphic framework for China has already been established,with seven mammalian ages named. With a developed stratigraphic basis for the geochronologic "ages", seven chronostratigraphic "stage" have been established for the Chinese Neogene terrestrial strata, namely the Miocene Xiejian, Shanwangian,Tunggurian, Bahean, and Baodean stages, and the Pliocene Gaozhuangian and Mazegouan stages. Based on a series of research achievements, refined biostratigraphic, paleomagnetic and isotopic methods were combined and applied to continuous sections,and a Chinese Neogene chronostratigraphic sequence with accurate geological ages was established and improved in recent years. The lower boundaries of most of the stages could be correlated with those of the marine stages in the International Chronostratigraphic Chart, except the Tunggurian Stage, which is correlated with the European land mammal age. The biostratigraphic markers of the Chinese Neogene stages are usually first appearance of a single taxon, some representing regional species replacement, others indicating intercontinental migration of certain taxa. Candidate stratotype sections have been proposed for all the Chinese Neogene stages according to the principle and rule of modern stratigraphy, and other Chinese Neogene strata in different regions are comprehensively correlated. 展开更多
关键词 NEOGENE Stage/age MAMMAL BIOSTRATIGRAPHY CHRONOSTRATIGRAPHY MAGNETOSTRATIGRAPHY China
Quaternary integrative stratigraphy and timescale of China
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作者 Chenglong DENG Qingzhen HAO +1 位作者 Zhengtang GUO Rixiang ZHU 《中国科学:地球科学英文版》 SCIE EI CAS CSCD 2019年第1期324-348,共25页
Quaternary strata in China mainly comprise continental deposits in a variety of depositional settings. The continental Quaternary in temperate northern China consists mainly of eolian and fluvio-lacustrine deposits;th... Quaternary strata in China mainly comprise continental deposits in a variety of depositional settings. The continental Quaternary in temperate northern China consists mainly of eolian and fluvio-lacustrine deposits;that in subtropical southern China, mainly of vermiculated red soils, cave/fissure deposits, and fluvio-lacustrine deposits;and that in the alpine Tibetan Plateau, mainly of fluvio-lacustrine and piedmont deposits. The marine Quaternary in China consists of detrital deposits and biogenic reef deposits. The integration of biostratigraphy, magnetostratigraphy, climatostratigraphy and an astronomically calibrated chronology has led to the establishment of high-precision climatochronostratigraphic timescales for the detrital marine Quaternary in the South China Sea and the loess-paleosol sequence in the Chinese Loess Plateau. Extremely high-precision230 Th dating has provided a high-precision absolute age model for cave stalagmites over the past 640000 years as well as highresolution oxygen isotope records representing orbital-to suborbital-scale climate changes. By combining magnetic stratigraphy and biostratigraphy, robust chronostratigraphic frameworks for non-eolian continental Quaternary deposits on the scale of Quaternary geomagnetic polarities have been established. The continental Pleistocene Series consists, from oldest to youngest,of the Nihewanian Stage of the Lower Pleistocene, the Zhoukoudianian Stage of the Middle Pleistocene, and the Salawusuan Stage of the Upper Pleistocene. Stages of the continental Holocene Series have not yet been established. This review summarizes recent developments in the Quaternary chronostratigraphy of representative Quaternary strata and associated faunas, and then proposes an integrative chronostratigraphic framework and a stratigraphic correlation scheme for Quaternary continental strata in China. In the near-future, it is hoped to establish not only a Chinese continental Quaternary climatochronostratigraphic chart on the scale of glacial-interglacial cycles but 展开更多
关键词 QUATERNARY CHRONOSTRATIGRAPHY Magnetic STRATIGRAPHY BIOSTRATIGRAPHY Climatostratigraphy China
大兴安岭南段陆相二叠系-三叠系界线地层序列及其意义:来自锆石U⁃Pb年代学和生物地层学的证据
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作者 张渝金 张超 +7 位作者 谭红艳 李伟 杨晓平 杨涛 马永非 刘淼 司秋亮 汪岩 《地球科学》 EI CAS CSCD 北大核心 2019年第10期3314-3332,共19页
陆相二叠纪-三叠纪地层划分与对比研究对认识该时期全球性重大生物和环境事件具有重要意义.以大兴安岭南段阿鲁科尔沁旗坤都地区新发现的下三叠统老龙头组为研究对象,重点对二叠系-三叠系接触关系开展详细调查研究,系统采集了界线上下... 陆相二叠纪-三叠纪地层划分与对比研究对认识该时期全球性重大生物和环境事件具有重要意义.以大兴安岭南段阿鲁科尔沁旗坤都地区新发现的下三叠统老龙头组为研究对象,重点对二叠系-三叠系接触关系开展详细调查研究,系统采集了界线上下的古生物化石,对老龙头组火山岩进行了锆石U-Pb同位素测试分析,并确定了老龙头组与下伏林西组呈平行不整合接触关系,两者之间存在短暂沉积间断.生物地层显示林西组时代为晚二叠世晚期,老龙头组古生物匮乏,可能与二叠系-三叠系之交的生物灭绝事件有关.而老龙头组中3个同位素年龄值分别为251.5±2.2 Ma、249.7±2.5 Ma和249.5±1.8 Ma,时代指示为早三叠世,然而二叠系-三叠系界线的准确位置还需进一步研究.大兴安岭南段普遍存在可能与古亚洲洋闭合有关的早三叠世岩浆事件,古亚洲洋沿着西拉木伦河缝合带发生碰撞闭合,其闭合时限至少持续至早三叠世,老龙头组是两大板块拼贴碰撞作用的产物. 展开更多
关键词 晚二叠世 早三叠世 林西组 老龙头组 锆石U-PB年代学 生物地层学 大兴安岭南段
西藏定日县贡扎上白垩统浮游有孔虫与桑顿阶/坎潘阶界线的厘定
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作者 李琪 李国彪 《古生物学报》 CSCD 北大核心 2019年第3期353-362,共10页
白垩纪是大洋缺氧及生物灭绝等重大地质事件频发的一个时期,也是全球气候变暖的重要时期。因此,白垩纪研究对于探讨地质历史时期地球的系统演化,尤其是生物与环境之间的协同演化关系,具有十分重要的意义。西藏定日贡扎剖面保存着上白垩... 白垩纪是大洋缺氧及生物灭绝等重大地质事件频发的一个时期,也是全球气候变暖的重要时期。因此,白垩纪研究对于探讨地质历史时期地球的系统演化,尤其是生物与环境之间的协同演化关系,具有十分重要的意义。西藏定日贡扎剖面保存着上白垩统较为完整的地层序列,文中对上白垩统岗巴村口组和宗山组剖面岩石样品中获得的有孔虫化石进行研究,鉴定出有孔虫化石8属22种,识别出Dicarinella asymetrica、Globotruncanita elevata、Globotruncana ventricosa、Radotruncana calcarata等4个有孔虫化石带。根据有孔虫化石确定贡扎剖面的地层时代为晚白垩世桑顿期(Santonian)至坎潘期(Campanian),桑顿阶/坎潘阶界线位于Dicarinella asymetrica带与Globotruncanita elevata带之间。 展开更多
关键词 浮游有孔虫 生物地层 晚白垩世 桑顿阶/坎潘阶界线 贡扎定日
贵州思南奥陶纪末至志留纪初大息场组的笔石
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作者 王文娟 陈建文 张银国 《古生物学报》 CSCD 北大核心 2019年第2期188-201,共14页
贵州思南奥陶纪末至志留纪初大息场组的笔石研究结果表明,大息场组共产出笔石6属7种.Styra-cograptus chiai ( Mu, 1949), Normalograptus mirnyensis (Obut and Sobolevskaya, 1967 ), Normalograptus ajjeri(Legrand, 1977).Metaclima... 贵州思南奥陶纪末至志留纪初大息场组的笔石研究结果表明,大息场组共产出笔石6属7种.Styra-cograptus chiai ( Mu, 1949), Normalograptus mirnyensis (Obut and Sobolevskaya, 1967 ), Normalograptus ajjeri(Legrand, 1977).Metaclimacograptus hughesi(Nicholson, 1869).Avitograptus as 加s(Davies, 1929).Atavograptus(Jones, 1909)和 Korenograptus (Churkin and Carter, 1970) o 自下而上可识别出相当 Dicellograp-tus complexus 带、Akidograptus ascensus 带和 Cystograptus vesiculosus-Coronograptus cyphus 带的 3 个含笔石地层带。虽然大息场组的笔石动物群分异度较低,但全都是上扬子区奥陶-志留系之交的常见属种,除S. chiaiCMu)之外,其它都是全球广布的物种。 展开更多
关键词 笔石 生物地层学 过渡相 大息场组 奥陶-志留纪 思南 贵州
山东平邑盆地晚白垩世-古新世生物地层及白垩系/古近系界线研究 预览
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作者 杜圣贤 刘凤臣 +6 位作者 陈军 高黎明 宋香锁 陈诚 田兴磊 张增奇 刘书才 《地质学报》 EI CAS CSCD 北大核心 2019年第8期1831-1848,共18页
在白垩纪与古近纪之交,全球发生了恐龙等生物大灭绝和哺乳动物兴起的重大事件,白垩系与古近系界线(KPB)研究受到了高度关注。为了寻找更好更连续更典型的非海相KPB剖面,提高非海相KPB研究程度,笔者在平邑盆地开展了大量的地质调查、剖... 在白垩纪与古近纪之交,全球发生了恐龙等生物大灭绝和哺乳动物兴起的重大事件,白垩系与古近系界线(KPB)研究受到了高度关注。为了寻找更好更连续更典型的非海相KPB剖面,提高非海相KPB研究程度,笔者在平邑盆地开展了大量的地质调查、剖面测量、科学钻探和系统的样品采集、测试分析等工作,遴选出了国内少有的具有KPB的碳酸盐岩湖相沉积的典型剖面。通过对大量古生物化石的分析鉴定,在卞桥组一段下亚段建立了1个轮藻组合: Festiella anluensi- Microchara cristata- Chara yuntaishanensis var. acuta;1个介形类组合: Talicypridea reticulata- Mongolocypris distributa-- Ziziphocypris simakovi- Frambocythere tumiensis ferreri;1个孢粉组合: Ulmipollenites + Ulmoideipites- Rugubivesiculites- Schizaeoisporites 。在卞桥组一段上亚段建立了1个轮藻组合: Peckichara zhijiangensis- Gyrogona wubaoensis- Stephanochara huangjianensis- Peckichara varians;1个介形类组合: Paracandona euplectella- Sinodarwinula guangzhuangensis- Cypridea cellularia;1个孢粉组合: Deltoidospora- Ephedripites- Parcisporites parvisaccus- Ulmipollenites minor 。根据化石组合特征将白垩系与古近系的界线确定在卞桥组一段内部。通过本次研究,理清了平邑盆地晚白垩世—古新世的生物组合,对研究KPB附近的生物群演化规律,恢复平邑盆地古气候、古地理、古生态以及碳酸盐湖盆的演化规律等具有非常重要的意义。 展开更多
关键词 非海相 白垩系与古近系界线 生物地层 卞桥组 平邑盆地
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Late Cretaceous non-avian dinosaurs from the James Ross Basin,Antarctica:description of new material,updated synthesis,biostratigraphy,and paleobiogeography 预览
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作者 Matthew CLAMANNA Judd ACASE +7 位作者 Eric MROBERTS Victoria MARBOUR Ricardo CELY Steven WSALISBURY Julia ACLARKE DEdward MALINZAK Abagael RWEST Patrick MO’CONNOR 《极地科学进展:英文版》 CSCD 2019年第3期228-250,共23页
Although the fossil record of non-avian dinosaurs from the Cretaceous of Antarctica is the poorest of any continent,fossils representing at least five major taxonomic groups(Ankylosauria,early-diverging Ornithopoda,Ha... Although the fossil record of non-avian dinosaurs from the Cretaceous of Antarctica is the poorest of any continent,fossils representing at least five major taxonomic groups(Ankylosauria,early-diverging Ornithopoda,Hadrosauridae,Titanosauria,and Theropoda)have been recovered.All come from Upper Cretaceous(Coniacian–Maastrichtian)marine and nearshore deposits belonging to the Gustav and Marambio groups of the James Ross Basin at the northern tip of the Antarctic Peninsula.The majority of these finds have come from the Campanian–Maastrichtian Snow Hill Island and López de Bertodano formations of James Ross and Vega islands.Given the rarity of Antarctic Cretaceous non-avian dinosaurs,discoveries of any fossils of these archosaurs,no matter how meager,are of significance.Here we describe fragmentary new ornithischian(ankylosaur and ornithopod)material from the upper Campanian–lower Maastrichtian Cape Lamb Member of the Snow Hill Island Formation and the Maastrichtian Sandwich Bluff Member of the López de Bertodano Formation.One of these specimens is considered to probably pertain to the holotypic individual of the early-diverging ornithopod Morrosaurus antarcticus.We also provide an up-to-date synthesis of the Late Cretaceous non-avian dinosaur record of the James Ross Basin and analyze the biostratigraphic occurrences of the various finds,demonstrating that most(including all named taxa and all reasonably complete skeletons discovered to date)occur within a relatively condensed temporal interval of the late Campanian to early Maastrichtian.Most or all James Ross Basin dinosaurs share close affinities with penecontemporaneous taxa from Patagonia,indicating that at least some continental vertebrates could disperse between southern South America and Antarctica during the final stages of the Mesozoic. 展开更多
关键词 Dinosauria ANTARCTICA Cretaceous JAMES ROSS BASIN BIOSTRATIGRAPHY PALEOBIOGEOGRAPHY
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Paleobiological significance of the James Ross Basin 预览
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作者 J.Alistair CRAME 《极地科学进展:英文版》 CSCD 2019年第3期186-198,共13页
The extensive Late Mesozoic–Early Cenozoic sedimentary succession exposed within the James Ross Basin,Antarctica has huge potential to enhance paleobiological investigations into both the marine and terrestrial fossi... The extensive Late Mesozoic–Early Cenozoic sedimentary succession exposed within the James Ross Basin,Antarctica has huge potential to enhance paleobiological investigations into both the marine and terrestrial fossil records.In excess of 7 km in total thickness and spanning the Early Cretaceous(Aptian)–Late Eocene in age,it represents an invaluable high-latitude(~65°S)site for comparison with lower latitude,tropical ones in an essentially greenhouse world.The Early Cretaceous(Aptian–Albian)sequence is deep-water but there are indications of shallowing to inner shelf depths in both the Turonian and Coniacian stages.The first prolific shallow-water marine fauna occurs in the Santonian–Campanian Santa Marta Formation and this is followed by repeated occurrences through the later Campanian,Maastrichtian,Danian and Middle Eocene(Lutetian).In this study an attempt has been made to compare these Antarctic faunas directly with the well-known ones of the same age from the US Gulf Coast.Detailed comparisons made for three time slices,Late Maastrichtian,Danian and Middle Eocene,indicate that the Antarctic is characterised by both low taxonomic diversity and high levels of endemism.The James Ross Basin is providing important evidence to indicate that the highest southern latitudes have always been characterised by a distinctive temperate biota,even on a pre-glacial Earth.The roots of at least some elements of the modern Southern Ocean biota can be traced back to a Late Mesozoic–Early Cenozoic austral realm. 展开更多
关键词 JAMES ROSS BASIN BIOSTRATIGRAPHY molluscan FAUNAS US GULF Coast biodiversity patterns evolutionof temperate biotas
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