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学术沙龙(4月28日)
报告题目:A new view: Hemichordate (e.g. Graptolites and relatives) and their Cambrian record报告人:Jörg Maletz 研究员报告人单位:柏林自由大学报告时间:2024年4月28日 下午3点报告地点:南京古生物所图书馆报告厅主办:重点实验室、科技处、人教处报告人简介:Jörg Maletz研究员长期致力于笔石、放射虫化石及早古生代地层研究,是目前国际上最活跃的、成果最突出的笔石学科权威研究专家之一。他主导和深度参与了德国、美国、加拿大、瑞典、挪威、阿根廷、中国等多个国家的笔石动物群及早古生代地层研究。其中,他主导奥陶系弗洛阶底界“金钉子”的笔石演化序列研究,推动了该“金钉子”于2000年成功建立在瑞典西哥特兰省。自2011年起他担任第三版的Treatise on Palaeontology(国际古生学论丛)(笔石卷)的主编,于2023年完成编撰并正式出版,对国际笔石学科研究起到了巨大的推动作用。近年来,他还致力于寒武纪晚期笔石动物的形态学和演化研究,以及华南志留系兰多维列统笔石序列及生物地层研究,是目前国际上研究寒武纪笔石起源和演化的主要研究专家。迄今为止,他已著有9本专著和200多篇学术论文。
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学术沙龙(4月15日)
讲座题目:1. Progress in understanding the Ediacaran biota (Dr. Alex Liu)2. Sedimentaryinsights into Neoproterozoic life (Dr. Brennan O'Connell)报 告 人:Alex Liu副教授,Brennan O'Connell博士报告人单位:剑桥大学报告 时间:4月15日(周一) 上午9:30-12:00报告 地点:图书馆三楼报告厅主 办:科技处、重点实验室、人教处、青促会报告人简介:Alex Liu副教授,任教于英国剑桥大学地球科学系,国际知名埃迪卡拉化石研究专家,担任国际地层委员会埃迪卡拉系分会选举委员,对加拿大、澳大利亚、英国、纳米比亚等地的埃迪卡拉化石进行了深入研究,在Nature、Geology、PNAS、Current Biology、Proceedings B等期刊发表论文50余篇。Brennan O'Connell博士,在英国剑桥大学地球科学系Alex Liu实验室进行博士后合作研究,主要从事新元古代氧化事件与古环境研究,已发表相关研究论文20余篇。
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学术沙龙(3月12-13日)
Simon Poulton,英国利兹大学教授,欧洲地球化学学会会士、英国皇家学会沃尔夫森优秀科研奖(Royal Society Wolfson Research Merit Award)获得者。他长期致力于地球生物圈化学演化、营养元素循环以及地球早期大气和海洋环境演变规律等问题的研究,通过沉积岩的地球化学及非传统同位素等极具独创性的手段揭示早期环境与生命协同变化规律,并取得重要成果。讲座1:Reconstructing Earth's Ancient Phosphorus Cycle讲座2:Phosphorus Controls on Earth's Early Oxygenation History报告人:Simon Poulton 教授报告人单位:英国利兹大学报告时间:3月12日(周二),14:30 3月13日(周三),14:30报告地点:南京古生物所图书馆三楼报告厅主 办:重点实验室、科技处、人教处报告人简介:Simon Poulton,英国利兹大学教授,欧洲地球化学学会会士、英国皇家学会沃尔夫森优秀科研奖(Royal Society Wolfson Research Merit Award)获得者。他长期致力于地球生物圈化学演化、营养元素循环以及地球早期大气和海洋环境演变规律等问题的研究,通过沉积岩的地球化学及非传统同位素等极具独创性的手段揭示早期环境与生命协同变化规律,并取得重要成果。发表论文一百余篇,包括Nature、Science、Nature Geoscience、Nature Communications、Science Advances等期刊论文数十篇,SCI引用18000余次。获得2023年中国科学院国际人才计划(PIFI)资助。报告摘要:Seminar 1: Reconstructing Earth’s Ancient Phosphorus CycleOur understanding of Earth’s oxygenation/deoxygenation history and links to biological evolution and extinction has evolved dramatically over recent years. While there is still much to learn in terms of reconstructing the dynamics of this history, with a broad understanding in place, attention is increasingly focusing on the drivers of intervals of paleoenvironmental change. In this regard, the key major limiting nutrient, phosphorus, plays a key role through its regulation of primary productivity, organic matter production and burial, and hence both regional water column deoxygenation and global oxygenation. However, our understanding of the ancient phosphorus cycle is highly limited, and hence controls on major periods of paleoenvironmental change are often obscured. Here, we will investigate phosphorus cycling in modern redox-sensitive environments, with a focus on ferruginous (Fe-containing) and low ··1= euxinic (sulfidic) water column settings that are analogous to ancient oceans. With this new understanding, we will then explore how new techniques for evaluating the phase partitioning of phosphorus can be used to unravel phosphorus cycling in ancient environments, with a particular focus on the Late Ordovician mass extinction and global ferruginous conditions in the early Neoproterozoic.Seminar 2: Phosphorus Controls on Earth’s Early Oxygenation HistoryOver the last 20 years, huge progress has been made in terms of our understanding of Earth's oxygenation history. This lecture will start with a general overview and timeline of the advances made, culminating in the most up-to-date reconstruction of atmospheric and oceanic oxygenation. Recent research will then be presented on the role that phosphorus cycling played in priming the Earth for its first major rise in atmospheric oxygen during the Great Oxidation Episode (GOE). Research pertaining to the dynamics of the GOE and links to phosphorus cycling will then be discussed. This work documents a major delay of ~100 million years in the timing of persistent atmospheric oxygenation, with intense fluctuations in atmospheric oxygen levels being linked to major climate perturbations. Finally, we will review how far our understanding of the history of mid-Proterozoic ocean chemistry has evolved over the last 20 years, with an ultimate focus on potential drivers of apparent temporal and spatial variability in this record.
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学术沙龙(2月29日)
报告题目:Resolving the effects of sea level change versus tectonic deformation on syn-rift cyclo-sequence stratigraphy: a case study from the Gulf of Suez, Egypt报告人:Raed Badr博士报告人单位:开罗大学时间:2024年2月29日(周四)下午2:30报告地点:南京古生物所图书馆三楼报告厅主办:重点实验室、科技处、人教处报告简介To resolve how sedimentation is influenced by eustatic sea-level change and tectonic deformation, we carried out a comprehensive analysis of syn-rift deposits of the Wadi Baba area on the eastern margin of the Gulf of Suez, Egypt. By comparing physical stratigraphic data with age constraints from biostratigraphy, Sr isotope stratigraphy and benthic foraminiferal d18O data, we established a temporal range of 21.2 to <15.9 Myr (Aquitanian-early Langhian) for the studied section and made the following observations:1. During the early rifting stage (21.2 to 19.1 Mry), sea-level change mainly controlled the timing and development of shallow-marine sedimentary cyclicity, and the cycles were influenced by the 400 kry eccentricity-forced climatic variability.2. Tectonic subsidence was sufficient to outpace the eustatic sea-level falls at the end of the eccentricity-driven eustatic cycles. During rift-climax (19.1 to <15.9 Mry), increased tectonic subsidence/tilting and sediment influx masked the effect of eustasy.3. We found that low-gradient tectonic settings such as hanging wall dip slopes can preserve eustatic-induced stratigraphic cyclicity, unlike dynamic high-gradient settings around propagating faults, which mask or distort eustatic signals.4. During tectonic quiescence stages, sea-level falls contributed to the development of some sequence boundaries that correspond to the global Mi1ab and Mi2 events.图1 埃及苏黎世海湾中新世浅海沉积序列报告人简介Raed Badr 博士于2008年5月在开罗大学获得地质学和化学双学士学位,并在2022年获得沉积地质学的博士学位后留校担任讲师。自2013年7月至今他同时兼职担任埃及EREX石油顾问公司的高级沉积学家。他的专长为沉积学和层序地层学。Raed博士已经以第一或主要作者身份在Sedimentary Geology和 Journal of Asian Earth Science等期刊发表论文3篇。这次讲座中Raed将介绍他自2023年7月以来在南古所开展的PIFI项目合作研究。
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学术沙龙(3月6日)
报告题目:Holocene process-based hydroclimate evolution coupled with human behaviours in Dian Lake basin, Southwest China报告人:乌尼曼 教授报告人单位:西南交通大学时间:2024年3月6日(周三)上午10:00报告地点:南京古生物所图书馆三楼报告厅主办:咨询中心、科技处、人教处报告简介水文气候变化与人类活动影响是研究人类活动响应气候变化的重要问题。滇池盆地东南地区的考古发现与湖泊沉积记录研究结合,揭示了青铜时代、滇-汉代人类活动与夏季风和湖泊水位变化的相互关系。晚全新世季风衰退、湖泊水位最低时期,滇-汉代湖盆低地聚落繁盛,后因湖泊水位上升、地表活动活跃而迁出低地,直到明朝才在被洪积层垫高的低地重新出现。两个沉积柱的分析,揭示了湖泊水位变化与地表过程,对人类活动的重大影响。报告人简介Bernd Wunnemann 教授,1990年于柏林自由大学获博士学位。2008-2017年在南京大学工作10年,2012年获中国国家友谊奖,2014年获国家特聘外专千人计划,后任职于华东师范大学,现受聘于西南交通大学。他长期在青藏高原与沙漠地区进行湖泊-流域相互作用研究,利用沉积学与生物化石、地球化学手段,识别第四纪晚期的多种作用过程,重建古气候。牵头德国自然科学基金(DFG)、德国联邦教研基金(BMBF)与中国国家自然科学基金(NSFC)多个项目,在ESR、QSR、GRL、Journal of Hydrology、Catena等期刊发表系列高水平论文。
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学术沙龙(1月23日)
报告题目:1、研究所科研经费相关管理规定宣讲2、2023年度国家基金委申请情况及2024年度工作宣讲报告部门:科技处时间:1月23日(周二) 上午10:00地点:图书馆三楼报告厅 (腾讯会议:424-100-172)主办:科技处、重点实验室、青促会、人教处
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学术沙龙(12月11日)
报告题目:Castle Bank and Anji: two remarkable Ordovician windows into sponge evolution报告人:Joseph P. Botting 副研究员报告人单位:英国威尔士国立自然博物馆报告时间:2023年12月11日 上午10点报告地点:南京古生物所图书馆三楼报告厅主办:基础部、重点实验室、科技处、综合处、人教处报告摘要:海绵是最古老的动物门之一,是许多现代和古代生态系统的主要组成部分。然而,它们的演化历史仍然鲜为人知。许多寒武纪早期以及中生代海绵动物类群与现代海绵动物非常相似,但事实证明,追踪这些现代动物群的起源极其困难。六射海绵尤其如此,它们最早的祖先(reticulosans)与现代谱系之间存在很大的演化缺失。现在,这一缺失开始被两个Konservat Lagerst?tten的研究所填补:中奥陶世城堡滩生物群(英国威尔士)和最新的浙江奥陶纪安吉动物群。两者都开始揭示主要现生谱系的起源,本次报告探讨了如何通过了解它们复杂的形态和生态历史来追溯它们的祖先。Abstract. Sponges are one of the oldest animal phyla, and are a major component of many modern and ancient ecosystems. Their evolutionary history, however, remains poorly known. There are many faunas of early sponge groups from the Cambrian, and excellent Mesozoic faunas that closely resemble modern groups, but tracing the origins of those modern groups has proven extremely difficult. This is particularly true of the Hexactinellida, where there is a large gap between their earliest ancestors (reticulosans) and the modern lineages. This gap is starting to be filled by work on two Konservat-Lagerst?tten: the Middle Ordovician Castle Bank Biota (Wales, UK), and the latest Ordovician Anji Fauna of Zhejiang. Both are starting to reveal the origins of major living lineages, and this talk explores how to trace them back to their ancestors, by understanding both their complex morphology and their ecological history.报告人介绍:Joseph P. Botting 长期致力于早期生命,特别是海绵动物演化的相关研究。1997年从英国剑桥大学本科毕业,2000年获英国伯明翰大学博士学位,目前就职于英国威尔士国立博物馆),是中国科学院南京地质古生物研究所客座学者。迄今他已发表上百余篇学术论文,其中包括第一作者Nature、PNAS、Current Biology、Geology等重要刊物多篇。
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学术沙龙(12月12日 下午3:00)
报告题目:Mesozoic and Caenozoic continental biotas in Thailand报告人:Dr. Bouziane Khalloufi报告人单位:Mahasarakham University时间:2023年12月12日(周二)下午3:00报告地点:南京古生物所图书馆三楼报告厅主办:中生代陆地生态系统研究中心、青促会、古生物学与油气地层应用重点实验室、科技处、人教处报告简介Thailand is formed of two main terranes, Sibumasu and Indochina, both originating from the margin of the Gondwana. They drifted northward separately, at different times, resulting in two distinct biogeographical histories, before colliding and merging from the Late Permian. A marine regression followed, leading to the prevalence of continental deposition from the Late Triassic. During the Mesozoic, most of these deposits are located in the north-east of the country, with a few limited occurrences in Central and Peninsular Thailand. The fossil fauna shows a wide diversity of aquatic and terrestrial vertebrates, with a hundred species recorded so far (of which half remain unnamed), and referred to sharks, lungfishes, coelacanths, dinosaurs, pterosaurs, crocodiles, and turtles, occasionally associated, among others, with bivalves, conchostracans and insects. Although deposited until the Late Cretaceous, Mesozoic sediments are very poor in fossils after the Aptian.Caenozoic deposition is also predominantly continental. More widely distributed across the country, the sediments crop out in a series of intermontane basins resulting from active rifting beginning in the mid-late Palaeogene. These basins, which correspond to lacustrine to fluvio-deltaic systems, reflect the drift from a Mesozoic semi-arid climate to warm temperate and tropical conditions. As natural exposures are limited, the fossils are often associated with coal and hydrocarbon mining, or found during the excavation of water reservoirs. Vertebrates are represented by articulated or isolated remains of mammals (including hominoids), reptiles, a few amphibians, and freshwater fishes. Molluscs can agglomerate into dense beds in the north and the south, while an remarkable insect fauna has been reported from the west.Palynomorphs and plant macroremains are continuously represented throughout the Mesozoic and Caenozoic, and include some of the largest fossil trunks ever reported, as well as rare occurrences of fruits and amber.个人简介Bouziane Khalloufi is paleontologist at the Palaeontological Research and Education Centre, Mahasarakham University, in Thailand. After graduating from the Mus um national d’Histoire naturelle, Paris (France), he worked at the Universidade do Estado do Rio de Janeiro, in Brazil, and in different museums and universities in France. His research focuses on the evolution of ray-finned fishes (actinopterygians) through their anatomy and phylogeny, with a special interest in Cretaceous and Miocene marine and freshwater forms. He is also working on theoretical aspects of cladistics and biogeography, and has conducted several fieldworks in North Africa, South America, Europe and Southeast Asia.
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学术沙龙(12月12日 上午10:00)
报告题目:塔里木盆地新元古界—下古生界超深白云岩油气地质理论与勘探实践报告人:陈永权 教授级高工报告人单位:中国石油塔里木油田勘探开发研究院报告地点:南京古生物所图书馆三楼报告厅报告时间:2023年12月12日 上午10点报告人简介:陈永权,中国石油塔里木油田企业高级专家,教授级高工。2001年和2006年在南京大学分别获学士和博士学位。长期从事塔里木盆地新元古界—下古生界白云岩相关的基础研究与油气勘探工作。先后主持国家科技专项、重点研发项目与中石油企业科技项目的项目/课题/专题研究。获得省部级奖励5项,局级奖8项;授权发明专利3项;出版专著一部,发表学术论文100余篇。报告简介:将从塔里木盆地超深白云岩资源潜力出发,简要介绍研究思路与研究历程,重点阐述对新元古界—下古生界成盆、成烃、成储与成藏的最新研究进展;结合超深白云岩勘探实践,总结勘探启示与教训,探讨超深白云岩有利勘探方向与前景。
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学术沙龙(11月28日 下午14:00)
报告题目:洞穴微生物研究及其天体生物学意义报告人:王红梅 教授报告人单位:中国地质大学(武汉)报告时间:2023年11月28日(周二)下午14:00报告地点:南京古生物所图书馆三楼报告厅主办:古生物学与油气地层应用重点实验室、科技处、人教处、国科大南京学院王红梅,教授,博导,主要从事微生物生态学和地质微生物学的教学和科研活动。曾获全国百篇优秀博士论文提名奖。2008年,获得教育部自然科学一等奖1项,2012年获得武汉市第三届青年科技奖,2013年获得武汉市三八红旗手称号,2015年获湖北省师德先进个人,2021年荣获湖北省三八红旗手,和湖北省百名优秀女性科技创新人才等荣誉称号。任国际洞穴协会微生物分会副主席、国际深部生物圈研究中心执行委员会委员、中国古生物学会地球生物学分会理事、中国微生物学会地质微生物专委会委员、湖北省古生物学会理事。中国科学院地学部“深部生物圈”战略研讨项目工作组副组长、中国科学院地学部与基金委“极端环境微生物”战略研讨项目专家组成员。生物地质与环境地质国家重点实验室地质微生物实验室负责人。主持或主持完成国家自然科学基金项目7项(含重点项目2项)、973项目子课题(2项)和中石化前瞻性基础研究项目1项。发表SCI论文100余篇,合作出版专著2部。
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学术沙龙(11月28日 上午10:00)
报告题目:Vendian (upper Ediacaran) chronostratigraphy of Northern Eurasia: falling into place or falling into pieces?报告人:Dmitriy V. Grazhdankin 教授时间:2023年11月28日(周二)上午10:00报告地点:南京古生物所图书馆三楼报告厅报告人简介:Dmitriy V. Grazhdankin,俄罗斯科学院西伯利亚分院特罗菲穆克石油地质与地球物理研究所前寒武纪古生物学与地层学实验室主任,俄罗斯科学院教授,德国哥廷根科学与人文学院高斯教授,曾任国际地层委员会埃迪卡拉系分会副主席(2012-2020)。长期从事埃迪卡拉系古生物学、地层学和沉积学的研究,在Science Advances、Nature Communications、Geology等国际知名期刊发表论文70余篇,被引用3000余次,H指数30。报告简介:Late Ediacaran chronostratigraphy is in a state of ferment, stirred by the addition of new geochemical data as well as controversial interpretations of fossils. It appears that biotic evolution proceeded in mostly anoxic environments and was punctuated by episodic oxygenation, global-scale euxinia, and alkalinity events. The late Ediacaran heterogenous redox landscape determined the course of macroevolution and macroecology, whereas the alkalinity events could control the discrete nature of early diagenetic cementation of aluminosiliciclastic sediments, and fossilization of soft-bodied organisms. This effectively reduces the fossil record giving only glimpses into the true evolutionary history.
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学术沙龙(11月23日)
报告题目:国际地质科学联合会地质遗产地的由来和展望报告人:张建平 教授报告人单位:中国地质大学(北京)地质遗迹研究中心 国际地科联国际地质遗迹委员会时间:2023年11月23日(周四)下午02:30报告地点:南京古生物所图书馆三楼报告厅主办:综合处、科技处、人教处报告人简介张建平,教授、博士生导师,中国地质大学(北京)地质遗迹研究中心主任。长期从事古生物学、地质遗迹调查与评价、地质公园和区域经济可持续发展教学和研究。主持并完成大量国家科技部、财政部、国土资源部、国家林业和草原局、国家自然科学基金、世界自然基金会和各级地方政府委托的科学研究项目和一些国际合作项目(IGCP-731),发表专著50余部、论文100余篇。在古生物学、地质遗迹调查、评价、研究、保护和保育、地质公园申报、建设、推广、区域可持续发展等领域取得突出成果。领导和参与国际地质科学联合会地质遗产地遴选和评估工作,目前担任国际地质科学联合会国际地质遗迹委员会副主席、地质遗产地遴选和投票专家组成员、世界地质公园网络执行局成员、联合国教科文组织专家顾问、联合国教科文组织世界地质公园理事会副主席和主席团成员(2018-2022)、联合国教科文组织世界地质公园资深评估员等。
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学术沙龙(11月15日 下午02:00)
报告题目:地球系统科学与金属稳定同位素报告人:黄方 教授报告人单位:中国科学技术大学时间:2023年11月15日(周三)下午02:00报告地点:南京古生物所图书馆三楼报告厅主办:古生物学与油气地层应用重点实验室、科技处、青促会、人教处报告人简介黄方,现任中国科学技术大学教授,深空探测实验室副主任。1999和2002年在中国科学技术大学分别获得地球化学本科和硕士学位,2007年在美国伊利诺伊大学获得博士学位,2008-2011年在美国伊利诺伊大学和苏黎世高等理工做博士后,2011至今在中国科大任教。主要从事金属稳定同位素地球化学研究,关注地球和行星的形成和演化等重要问题。担任GCA等国际期刊的副主编,在金属稳定同位素的方法体系和应用、矿物-熔体间微量元素分配系数、俯冲带岩浆作用的过程机制等方面取得一系列原创性成果,共发表论文230余篇,其中Nature、PNAS、EPSL、GCA、Geology等刊物发表第一/通讯作者论文约70篇。2013年获得国家杰出青年基金资助。曾获侯德封青年科学家奖、孙贤鉥奖、中国青年科技奖(2013)、教育部青年科学奖(2016)、安徽省自然科学一等奖(2023,第一完成人)。
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学术沙龙(11月17日)
报告题目:The largest collision in late solar system history and its effects on climate and life on Earth: The breakup of the L-chondrite asteroid 470 Myr ago报告人:Birger Schmitz 教授报告人单位:Department of Physics, Lund University时间:2023年11月17日(周五)下午02:30报告地点:南京古生物所图书馆三楼报告厅主办:科技处、国家重点实验室、青促会、人教处报告人简介:Prof. Birger Schmitz is professor of Geology at Lund University, focused on the crossdisciplinary research mainly about reonstructing the history of the solar system by studies of Earth's sedimentary record. Up to now, he has published more than 200 scientific articles and edited volumes on accretion of extraterrestrial matter on Earth as well as on the warm climates of the early Paleogene.报告简介:The most common type of meteorite that falls on Earth today, the L chondrites, originate from the largest documented collision in the solar system the past 3 billion years. This collision happened in the asteroid belt during the Ordovician period when the circa 150 km large parent body of the L chondrites was hit by another object, possibly a comet. As the parent body broke up the solar system was filled with dust from the collision.The signature of this event can be studied in Earth's sedimentary record. More than 130 fossil L-chondritic meteorites, 1-21 cm large, have been recovered during quarrying of Ordovician limestone in southern Sweden. From Earth's record of impact craters we see that a shower of asteroids, 0.1-1 km large, hit Earth during the 30 Myr after the breakup event. In mid-Ordovician strata in Baltoscandia the precise level corresponding to the breakup event has been located by extraterrestrial relict minerals, mainly chromite, representing abundant micrometeorites that reached Earth after the collision. The flux of extraterrestrial dust to Earth increased by at least two orders of magnitude. The dust kept some sunlight out, leading to cooling and an ice age, as evidenced by the onset of an eustatic sea-level fall.The Yangtze Platform contains the world's best Ordovician strata to study the effects of this asteroid breakup. We have located the stratigraphic level corresponding to the breakup event in the Kuniatan Formation in the Puxi River section near Yichang. We now plan studies of the Shihtzupu Formation to get a better idea of sea-level changes after the asteroid breakup.Left: A fossil meteorite and orthoceratite shell in Ordovician limestone plate from Sweden.Right: Darriwilian strata at Kinnekulle, Sweden, with the time of the asteroid breakup and sea-level fall marked
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学术沙龙(11月15日 上午10:00)
报告题目:白垩纪-古近纪界限时期南雄盆地的陆地高温记录报告人:张来明 副教授报告人单位:中国地质大学(北京)时间:2023年11月15日(周三)上午10:00报告地点:图书馆三楼报告厅主办:国家重点实验室、科技处、青促会、人教处报告简介白垩纪—古近纪(K- Pg)界限时期发生了地质历史中最严重的生物大灭绝事件之一,重建该时期气候演化历史及其对生态系统的影响对理解深时气候演化规律和预测未来气候变化都具有重要意义。然而相比海相剖面而言,基于陆相剖面的白垩纪—古近纪界限时期古气候重建研究开展较晚,相关成果缺乏系统总结和集成。研究系统回顾了全球陆相白垩纪—古近纪界限剖面的分布情况和事件年代学新进展,总结了前人重建的定量古气候记录和德干火山喷发记录,建立了该时期长周期的陆地年平均温度和大气CO2浓度记录。此外,目前基于气候代用指标和基于气候模拟获得的陆地温度记录之间仍存在较大差异,且在低纬度地区更加明显,这阻碍了深入理解低纬度陆地气候对全球气候变化的响应。应用团簇同位素地球化学和汞元素/同位素地球化学手段,对中国南雄盆地上白垩统-下古新统地层开展了研究,在排除了重结晶和固态重排这两种成岩作用的影响后,结果指出白垩纪-古近纪界限时期低纬度地区的年平均陆地温度约为30 C,明显高于前人重建结果,暗示该时期热带范围发生明显扩张,甚至超出了生物能够承受的阈值,驱使生物向高纬度或高海拔地区迁徙。研究认为该时期较为炎热的气候可能与德干火山活动密切相关,而南雄盆地汞元素的保存可能受到了炎热和干旱气候的影响,因此汞元素浓度保持在相对较低的水平。报告人简介张来明,博士,中国地质大学(北京)副教授,博士研究生导师。主要从事深时陆地气候与古地貌重建研究,聚焦晚中生代以来若干“关键地质时期”的古地貌、古气候和古生物事件,揭示了大气二氧化碳和中国东部古地貌演化的陆地气候响应及其对生物的重要影响。作为项目负责人主持自然基金面上项目、国家重点研发计划子课题等10余项,已发表论文30篇,其中在Proceedings of the National Academy of Sciences、Geology、Earth and Planetary Science Letters、Geophysical Research Letters等刊物发表第一/通讯作者SCI论文17篇。