|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Rare earth elements and carbon isotope geochemistry of the Doushantuo Formation in South China:Implication for middle Ediacaran shallow marine redox conditions显示文摘The middle Ediacaran Shuram excursion, the largest negative δ 13 C carb excursion in Earth history, has been interpreted as indirect evidence for episodic oxidation and remineralization of deep ocean DOC (dissolved organic carbon). It has been hypothesized that such oxidation event may have occurred when anoxic DOC-laden deep water was brought to shallow shelves during oceanic upwelling, which is expected to cause localized anoxia in shallow environments. To test this prediction, we systematically analyzed rare earth elements (REE) and δ 13 C carb of the upper Doushantuo Formation carbonates in the Yangtze Gorges area of South China, which were deposited in an inner shelf environment and record a large negative δ 13 C carb excursion correlated to the Shuram event. The REE data show a significant positive shift in Ce/Ce* values, synchronous with a pronounced negative δ 13 C carb shift. This positive Ce/Ce* shift is interpreted to represent an oceanic anoxia event in shallow shelf environments, which may have been caused by the upwelling or impingement of oxygen-depleted and 12 C-enriched deep water onto shelves. This anoxia event coincides with a sharp decline in the abundance and diversity of Ediacaran acanthomorphic acritarchs, raising the possibility that these two geobiological events may be causally related. | ZHOU ChuanMing JIANG ShaoYong XIAO ShuHai CHEN Zhe YUAN XunLai | 2012 | Chinese Science Bulletin2012，57，16： | 11 |
| 2 | The Weng'an biota and the Ediacaran radiation of multicellular eukaryotes显示文摘The rise of multicellularity represents a major evolutionary transition and it occurred independently in multiple eukaryote clades.Although simple multicellular organisms may have evolved in the Mesoproterozoic Era or even earlier,complex multicellular eukaryotes began to diversify only in the Ediacaran Period,just before the Cambrian explosion.hus,the Ediacaran fossil record can provide key paleontological evidence about the early radiation of multicellular eukaryotes that ultimately culminated in the Cambrian explosion.he Ediacaran Weng’an biota in South China hosts exceptionally preserved eukaryote fossils,including various acanthomorphic acritarchs,pseudoparenchymatous thalli,tubular microfossils,and spheroidal fossils such as Megasphaera,Helicoforamina,Spiralicellula,and Caveasphaera.Many of these fossils have been interpreted as multicellular eukaryotes,although alternative interpretations have also been proposed.In this review,we critically examine these various interpretations,focusing particularly on Megasphaera,which has been variously interpreted as a sulfur-oxidizing bacterium,a unicellular protist,a mesomycetozoean-like holozoan,a volvocine green alga,a stem-group animal,or a crown-group animal.We conclude that Megasphaera is a multicellular eukaryote with evidence for cell-to-cell adhesion,a lexible membrane unconstrained by a rigid cell wall,spatial cellular diferentiation,germ–soma separation,and programmed cell death.hese features are inconsistent with the bacterium,unicellular protist,and mesomycetozoean-like holozoan interpretations.hus,the surviving hypotheses,particularly the stem-group animal and algal interpretations,should be further tested with additional evidence.he Weng’an biota also hosts cellularly diferentiated pseudoparenchymatous thalli with specialized reproductive structures indicative of an ainity with lorideophyte red algae.he other Weng’an fossils reviewed here may also be multicellular eukaryotes,although direct cellular evidence is lacking in some and phylogenetic ainities are poorly constrained in others.he Weng’an biota ofers many research opportunities to resolve the life histories and phylogenetic diversity of early multicellular eukaryotes and to illuminate the evolutionary prelude to the Cambrian explosion. | Shuhai Xiao A.D.Muscente Lei Chen Chuanming Zhou James D.Schiffbauer Andrew D.Wood Nicholas F.Polys Xunlai Yuan | 2014 | National Science Review2014，1，4： | 9 |
| 3 | Paleoproterozoic glaciation: Evidence from carbon isotope record of the Hutuo Group, Wutai Mountain area of Shanxi Province, China显示文摘Palaeoproterozoic 全球冻结成冰(2.3 Ga ) 可以是地球历史上的第一个雪球地球事件。诺思中国暴露得好沉积存款这次有最小的 postdepositional 的时期改变。一个冻结成冰事件的沉积证据然而一直在缺乏。这里,我们在 Wutai 山区分析了 Paleoproterozoic Hutuo 组(2.52.2 Ga ) 的碳同位素作文,山西省,诺思中国。我们的数据表演,在里面一对更年轻的 chronostratigraphic 顺序更旧,(1 ) 积极 13Ccarb 在 Doucun 亚群的 Dashiling 形成珍视(3.2 ~ 1.0, VPDB ) ;(2 ) 在 13Ccarb 的减少从 Wenshan 形成珍视到中间的 Daguandong 形成(从 2.0 to1.2 ) ,在哪个时间期间 stromatolites 的出现衰退了;(3 ) 在上面的 Daguandong 形成的一次显著否定旅行,在 Daguandong 和 Huaiyincun 形成的边界(从 1.4 ~ 3.3 ) ,在 stromatolites 消失了的地方;并且(4 ) 13Ccarb 的渐渐的增加在 Beidaxing 和 Tianpengnao 形成珍视(从 1.2 ~ 1.4 ) ,在哪个期间时间 stromatolites 回来了。我们主张否定的碳同位素旅行从 Jianancun 形成记录了到 Hutuo 组的中间的 Daguandong 形成可以是对 Palaeoproterozoic 全球冻结成冰的诺思瓷器反应。 | KONG FanFan YUAN XunLai ZHOU ChuanMing | 2011 | Chinese Science Bulletin2011，56，27： | 6 |
| 4 | Phosphatized biotas from the Neoproterozoic Doushantuo Formation on the Yangtze Platform显示文摘The Doushantuo Formation in South China was deposited after the Nantuo glaciation but before the evolution of complex Ediacaran metazoans. It contains multiple taphonomic windows, in its cherts, carbonaceous shales, and phosphorites, onto the late Neoproterozoic biosphere. The phosphatic window is unusually clear; Doushantuo phosphorites at Weng’an (Guizhou Province) are known to exquisitely preserve a multitude of single-celled eukaryotes, muiticellular algae, and microscopic animals. Our recent survey reveals that, in addition to the now famous Weng’an locality, Doushantuo phosphorites at Baokang (Hubei), Chadian (Shaanxi), and Shangrao (Jiangxi) also contain diverse eukaryotes preserved at the cellular level. All these phosphorites were deposited in shallow-water environments, typically above fair weather wave base and close to ancient islands. Along with Doushantuo cherts and shales, these phosphorites give us a clearer and more complete picture of late Neoproterozoic biological evolution: there | ZHOU Chuanming YUAN Xunlai XIAO Shuhai | 2002 | Chinese Science Bulletin2002，47，22： | 6 |
| 5 | The Lantian biota:A new window onto the origin and early evolution of multicellular organisms显示文摘The Lantian biota at the Lantian Town of Xiuning County,Anhui Province,is preserved in black shales of the Ediacaran Lantian Formation.It yields some of the oldest known complex macroorganisms,including fan-shaped seaweeds and possible animal fossils with tentacles and intestinal-like structures reminiscent of modern coelenterates and bilaterians.The Lantian Lagerst tte sheds new light on the origin and early evolution of multicellular organisms in relatively quiet and deep environments soon after the Neoproterozoic Marinoan glaciation.The morphological complexity and diversity of early multicellular organisms may be closely related to sexual reproduction and alternation of generations.The fluctuation of oceanic redox conditions during this period may have played a role in the ecology and preservation of the Lantian biota. | YUAN XunLai CHEN Zhe XIAO ShuHai WAN Bin GUAN ChengGuo WANG Wei ZHOU ChuanMing HUA Hong | 2013 | Science China(Technological Sciences)2013，56，3： | 5 |
| 6 | Anatomy and plant affinity of Chuaria显示文摘Chuaria is one of the few globally distributed macrofossil pioneers documented in the Precambrian. It is perhaps the most controversial fossil in term of its affinity despite more than one hundred years of study. Many mutually exclusive affinities have been suggested for this frequently encountered fossil. Although often treated as a multicellular alga, this interpretation remains inconclusive because the lacking unambiguous demonstration of cellular structures. In this paper the cellular details of Chuaria are clearly revealed for the first time. The cell walls in Chuaria suggest that it is a multicellular eukaryotic alga, in agreement with the latest biogeochemical analyses. Different thicknesses of cell walls suggest primary cellular differentiation in this organism. Membrane-like structures within the cells (the first to be reported in Precambrian fossils) imply a eukaryotic nature. This study partially resolves the century-long controversy over the affinity of Chuaria, and makes Chuaria one of the few recognized multicellular eukaryotes before the Neoproterozoic glaciation. | WANG Xin YUAN XunLai ZHOU ChuanMing DU KaiHe GONG Miao | 2011 | Chinese Science Bulletin2011，56，12： | 2 |
| 7 | A Great late Ediacaran ice age显示文摘The emergence of the Ediacara biota soon after the Gaskiers glaciation ca.580 million years ago(Ma)implies a possible glacial fuse for the evolution of animals.However,the timing of Ediacaran glaciation remains controversial because of poor age constraints on the∼30 Ediacaran glacial deposits known worldwide.In addition,paleomagnetic constraints and a lack of convincing Snowball-like cap carbonates indicate that Ediacaran glaciations likely did not occur at low latitudes.Thus,reconciling the global occurrences without global glaciation remains a paradox.Here,we report that the large amplitude,globally synchronous ca.571–562 Ma Shuram carbon isotope excursion occurs below the Ediacaran Hankalchough glacial deposit in Tarim,confirming a post-Shuram glaciation.Leveraging paleomagnetic evidence for a∼90°reorientation of all continents due to true polar wander,and a non-Snowball condition that rules out low-latitude glaciations,we use paleogeographic reconstructions to further constrain glacial ages.Our results depict a‘Great Ediacaran Glaciation’occurring diachronously but continuously from ca.580–560 Ma as different continents migrated through polar–temperate latitudes.The succession of radiation,turnover and extinction of the Ediacara biota strongly reflects glacial–deglacial dynamics. | Ruimin Wang Bing Shen Xianguo Lang Bin Wen Ross N.Mitchell Haoran Ma Zongjun Yin Yongbo Peng Yonggang Liu Chuanming Zhou | 2023 | National Science Review2023，10，8： | 2 |
| 8 | Ediacaran integrative stratigraphy and timescale of China显示文摘Ediacaran successions occur widely in various depositional facies in South China and yield a series of fossil Lagerst?tten, providing a complete fossil record for the evolution of marine ecosystems after the terminal Cryogenian global glaciation. Carbonate-dominated Ediacaran successions in shallow water facies in South China record a nearly complete δ^(13)C profile that may reflect variations of marine carbon isotopic composition during the Ediacaran Period. The Ediacaran fossils andδ^(13)C profiles from South China permit stratigraphic correlation and subdivision of the Ediacaran strata. Based on biostratigraphic, chemostratigraphic, and geochronometric data from the Ediacaran successions in South China, we propose that the Ediacaran System in China can be subdivided into two series, with three stages in each series. The lower series is characterized by acanthomorphic acritarchs and the upper series by Ediacara-type macrofossils, and the two series are separated by the declining limb of a pronounced δ^(13)C negative excursion(EN3) in the upper Doushantuo Formation. The basal boundary of Stage1 is the same as the basal boundary of Ediacaran System, which has been defined at the base of the cap carbonate unit. Stage 2 represents the first radiation of Ediacaran microscopic organisms, with δ^(13)C feature representing by positive values(EP1). The base of the Stage 2 is placed at the first appearance level of a spiny acritarch species. Stage 3 is characterized by the occurrence of more diverse acritarchs and δ^(13)C feature EP2, with its basal boundary defined by a δ^(13)C negative excursion(EN2) occurring in the middle Doushantuo Formation. The basal boundary of Stage 4 is the same as the upper series. Stage 5 is marked by the occurrence of macrfossils of Miaohe biota, and its lower boundary can be placed at the level where δ^(13)C values transition from positive to negative in MNE, or the first appearance level of macrofossils of the Miaohe biota. Stage 6 is characterized by the occurrences of Ediacara-type Shibantan biota and Gaojiashan biota, with its lower boundary defined by the first appearance level of Conotubus hemiannulatus. The formal establishment of the aforementioned series and stages requires further and more detailed integrative stratigraphic study on the Ediacaran successions in China. Some of the Ediacaran successions in South China have great potential to become global standards in Ediacaran subdivision. | Chuanming ZHOU Xunlai YUAN Shuhai XIAO Zhe CHEN Hong HUA | 2019 | Science China Earth Sciences2019，62，1： | 2 |
| 9 | Cracking the superheavy pyrite enigma:possible roles of volatile organosulfur compound emission显示文摘The global deposition of superheavy pyrite(pyrite isotopically heavier than coeval seawater sulfate in the Neoproterozoic Era and particularly in the Cryogenian Period)defies explanation using the canonical marine sulfur cycle system.Here we report petrographic and sulfur isotopic data(δ^(34)Spy)of superheavy pyrite from the Cryogenian Datangpo Formation(660–650 Ma)in South China.Our data indicate a syndepositional/early diagenetic origin of the Datangpo superheavy pyrite,with ^(34)S-enriched H_(2)S supplied from sulfidic(H_(2)S rich)seawater.Instructed by a novel sulfur-cycling model,we propose that the emission of ^(34)S-depleted volatile organosulfur compounds(VOSC)that were generated via sulfide methylation may have contributed to the formation of ^(34)S-enriched sulfidic seawater and superheavy pyrite.The global emission of VOSC may be attributed to enhanced organic matter production after the Sturtian glaciation in the context of widespread sulfidic conditions.These findings demonstrate that VOSC cycling is an important component of the sulfur cycle in Proterozoic oceans. | Xianguo Lang Zhouqiao Zhao Haoran Ma Kangjun Huang Songzhuo Li Chuanming Zhou Shuhai Xiao Yongbo Peng Yonggang Liu Wenbo Tang Bing Shen | 2021 | National Science Review2021，8，10： | 2 |
| 10 | Late proterozoic tubular fossils from the doushantuo formation of wenga Guizhou, China显示文摘 | Li Guoxiang Xue Yaosong Zhou Chuanming | 1997 | Palaeoworld1997，，7： | 1 |
| 11 | New con- straints on the ages of Neoproterozoic glaciations in South Chi- na显示文摘 | Zhou Chuanming Tucker R Xiao Shuhai | 2004 | The Journal of Geology2004，32，5： | 1 |
| 12 | SHRIMP zircon U–Pb age constraints on Neoproterozoic Quruqtagh diamictites in NW China显示文摘 | Bei Xu Shuhai Xiao Haibo Zou Yan Chen Zheng-Xiang Li Biao Song Dunyi Liu Chuanming Zhou Xunlai Yuan | 2008 | Precambrian Research2008，，3： | 1 |
| 13 | Cell wall ultrastructures of the Proterozoic acritarch Leiosphaeridia asperata and their implications for biological affinity显示文摘Abundant sphaeroidal acritarch Leiosphaeridia asperata,with vesicle size ranging from 13 to 360 μm,occurred in the Proterozoic Liulaobei Formation shales in Huainan,Anhui Province.TEM/SEM studies of these sphaeroidal acritarchs have revealed complex ultrastructures,including ridges,bands,and possible trilaminar structures(TLS).Ridges,spaced ~1 μm apart,are distributed regularly on the vesicle internal surface of one specimen.Some specimens have alternating electron-dense and electron-tenuous bands that are perpendicular to vesicle walls.Some specimens have trilaminar structures(TLS),while a few others have both bands and TLS.These wall ultrastructures provide evidence that the Liulaobei leiosphaerids are of green microalgae.The variation in wall ultrastructures may represent various stages in a life cycle or developmental phases in the cyst formation analogous to some modern chlorophyceaen microalgae. | GONG Miao ZHOU ChuanMing YIN LeiMing YUAN XunLai WANG ChunZhao | 2010 | Science China Earth Sciences2010，53，12： | 1 |
| 14 | Adipose-derived stem cells in stroke treatment: translational possibility and mechanism显示文摘Stroke has become one of the secondary worldwide mortal diseases that burdens the family and the society both emotionally and economically.The announcement of China's Ministry of Health in 2008 showed that stroke had been the first cause of death in urban and rural residents.1,2 Traditional therapies such as thrombolysis,anti-platelets,and rehabilitation showed limited effects.Replacement therapy with stem cells promises to be a good solution due to its possible thorough therapy for the damaged brain area,reconstruction of neuronal circuitry,and probable long-term efficacy. | Zhou Fei Gao Shan'e Sun Chenxi Cao Limei Ren Haiyan Li Qiang Wang Guangming Dong Chuanming Zhu Liang Yang Danjing Wang Xianli Xu Jun Chen Xu | 2014 | Chinese Medical Journal2014，，20： | 1 |
| 15 | Palaeoceano graphic redox environments for the lower Cambrian Hetang Formation in south China:Evidence from pyrite framboids,redox sensitive trace elements,and sponge biota occurrence显示文摘 | Zhou Chuanming Jiang Shaoyong | 2009 | Palaeogeography Palaeoclimatology Palaeoecology2009，271，34： | 1 |
| 16 | An early Ediacaran assemblage of macroscopic and morphologically differentiated eukaryotes显示文摘 | Yuan Xunlai Chen Zhe Xiao Shuhai Zhou Chuanming Hua Hong | 2011 | Nature2011，470，39： | 1 |
| 17 | The Neoprotemzoic Qumqtagh Group in eastern Chinese Tian-shan:evidence for a post-Marinoan glaciation显示文摘 | Xiao Shuhai Bao Huiming Wang Haifeng Kaufman A J Zhou Chuanming Li Guoxiang Yuan Xunlai Ling Hongfei | | 0，，： | 1 |
| 18 | Study on Initial Explants Induction of Litsea cubeba显示文摘[Objective] The aim of this study was to explore an explants induction method for L. cubeba. [Method] Different types of L. cubeba stem segments were collected at different time as explants materials for induction and culture. [Result] The results showed that sterilization with 0.1% HgCl2 for 10 min achieved better effects, with an explants contamination rate of 40.0% and a mortality rate of 15.0%; stem segments of the 2nd-5th buds below the terminal bud were better explants materials for initial induction; the best sampling time was January, with an induction rate as high as 81.1%, while the contamination rate was only 11.7%; modified MS + 1.0 mg/L of 6-BA + 0.2 mg/L of NAA was the optimal medium for explants induction of L. cubeba. [Conclusion] Semi-lignified stem segments of L. cubeba collected in January, sterilized with 0.1% HgCl2 for 10 min and cultured in modified MS + 1.0 mg/L of 6-BA + 0.2 mg/L of NAA achieved better induction effects on L. cubeba seedlings. | Manfang LUI Chuanming ZHOU Ruqiong ZHOU Ying XIONG | 2012 | Agricultural Biotechnology2012，1，2： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员