Yichang, June 11-15, 2014 Wuhan, June 16-18, 2014 Guiyang-Guilin, June 19-22, Final Circular

Transcription

1 SOUTH CHINA 2014 A SYMPOSIUM AND FIELD WORKSHOP ON EDIACARAN AND CRYOGENIAN STRATIGRAPHY Yichang, June 11-15, 2014 Wuhan, June 16-18, 2014 Guiyang-Guilin, June 19-22, 2014 Final Circular 1

2 Dear colleagues, The Organizing Committee would like to invite you to participate in the 2014 Ediacaran/Cryogenian Subcommission symposium and workshop in South China. As outlined in the second circular, the field workshop and symposium consists of three segments. Segment 1 (June 11 15): a four-day field trip in the Yangtze Gorges area to examine key Ediacaran and Cryogenian sections. Segment 2 (June 16 18): a three-day symposium in Wuhan to be held concurrent with and in the same venue as the Third International Congress of Geobiology ( to discuss key issues related to Ediacaran and Cryogenian Earth history and to examine Ediacaran micro- and macrofossils (June 16 18). Segment 3 (June 18 22): a three-day field trip focusing on Cryogenian successions in Guizhou and Guangxi provinces (June 18 22). Participants will have some flexibility to choose which segment(s) they would like to participate in. Based on information we received, a list of participants with their registered segments, as well as a preliminary schedule of Segment 2, is provided. Please us (see 7. Contact Information) to confirm your participation and notify us any errors about your participation information (name, roommate, presentation title, etc.). If you know someone on the list and would like to nominate him/her as your roommate, please contact your friend to get his/her consent and then let us know. Finally, once you book your flights, make sure to us your flight information (arrival and departure dates, flight numbers) so that we can arrange someone to pick you up at the Yichang Airport. We will send out more information about a week before the workshop. Look forward to seeing you in Yichang. Organizing Committee: Chairman: Shuhai Xiao, Virginia Tech, USA; Nanjing Institute of Geology & Palaeontology, Chinese Academy of Sciences (NIGPAS) Members: Linzhi Gao, Institute of Geology, Chinese Academy of Geological Sciences Ganqing Jiang, University of Nevada Las Vegas, USA Pengju Liu, Institute of Geology, Chinese Academy of Geological Sciences Shucheng Xie, China University of Geosciences, Wuhan Chongyu Yin, Institute of Geology, Chinese Academy of Geological Sciences Xunlai Yuan, State Key Laboratory of Palaeobiology and Stratigraphy, NIGPAS Chuanming Zhou, State Key Laboratory of Palaeobiology and Stratigraphy, NIGPAS Maoyan Zhu, State Key Laboratory of Palaeobiology and Stratigraphy, NIGPAS Secretary: Chuanming Zhou (cmzhou@nigpas.ac.cn) Dan Wang (danwang@nigpas.ac.cn) 2

3 SPONSORS AND ORGANIZERS Sponsors: Subcommission on Ediacaran Stratigraphy Subcommission on Cryogenian Stratigraphy Chinese Academy of Sciences (CAS) National Natural Science Foundation of China (NSFC) State Key Laboratory of Palaeobiology and Stratigraphy (LPS) Key Laboratory of Economic Stratigraphy and Palaeogeography (LESP) All-China Stratigraphic Commission IGCP 587 "Of Identity, Facies and Time: the Ediacaran (Vendian) Puzzle" Department of Geosciences, Virginia Tech, Blacksburg, VA, USA Organizers: Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences (NIGPAS) Institute of Geology, Chinese Academy of Geological Sciences China University of Geosciences, Wuhan 1. PRELIMINARY SCHEDULE Segment 1 Segment 2 Segment 3 The official language of the meeting is English. June 11, 2014: Arrival in Yichang, Hubei Province; registration. June 12 15, 2014: Examine Ediacaran and Cryogenian sections at Huajipo, Jiulongwan, Yanjiahe, Xiaofenghe, Niuping, and Chenjiayuanzi of Hubei Province. June 15, 2014: Speed train to Wuhan; arrival in the evening. June 16-18, 2014: Symposium in Wuhan (see preliminary schedule at the end of this circular) to be held concurrent with and in the same venue as the Third International Congress of Geobiology ( June 18, 2014: Flight to Guiyang; arrival in the evening. June 19, 2014: Examine Cryogenian and Ediacaran sections at Wuhe of Guizhou Province. June 20, 2014: Bus to Liping. June 20-21, 2014: Examine Cryogenian sections at Liping of Guizhou Province and Sanjiang of Guangxi Province. June 22, 2014: Bus to Guilin; Released in Guilin (schedule your return flight on the evening of June 22 or on June 23). 3

4 Segment 1 Segment 2 Segment 3 2. REGISTRATION FEES: Segment 1: US$500/person (double occupancy); US$650/person (single occupancy). Arrival in Yichang on June 11, departure for Segment 2 in Wuhan on the afternoon of June 15. Participants registered only for Segment 1 will be released in Yichang on the afternoon of June 15. Segments 1+2: US$900/person (double occupancy); US$1,200/person (single occupancy). Arrival in Yichang on June 11, departure for Segment 3 in Guiyang on the evening of June 18. Participants not registered for Segment 3 will be released in Wuhan on the evening of June 18. Segment 1+2+3: US$1,300/person (double occupancy); US$1,700/person (single occupancy). Arrival in Yichang on June 11. Program will end in Guilin on the afternoon of June 22. Registration fees cover hotel from the night of June 11 to the night of June 22 (for segments 1+2+3), food and transportation during the workshop and symposium, flight from Wuhan to Guiyang, and conference material. If you have not yet remitted your registration fees, please arrange your payment to be paid through bank transfer. NAME: ZHOU CHUANMING ACCOUNT NO.: SWIFT CODE: BKCHCNBJ940 BANK NAME: BANK OF CHINA NANJING GULOU SUB-BRANCH ADDRESS: NO. 34 BEIJING WEST ROAD NANJING CHINA TEL: FAX: POST CODE:

5 3. WEATHER AND TRAVEL INFORMATION Information about the Yichang, Wuhan, Guiyang, and Guilin is available at and respectively. Weather (and food) in South China is generally hot in the summer. It is not unusual to have temperatures as high as 30 C. Mild hiking will be involved in the field trip. Participants should bring backpack, sun screen, sun glasses, rain jacket, hat, field apparel, field boots, rock hammer, field notebook, camera, personal medicines, and other personal items. Bottled water will be provided during the field trip. For arrivals, we recommend that international participants make a flight connection at Beijing Capital International Airport (PEK), which serves direct flights to Yichang Sanxia Airport (YIH). Direct flights are also served between Yichang and other major Chinese cities, including Shanghai, Guangzhou, Xi an, Chengdu, Kunming, and Guiyang. Speed trains are served between Yichang and Wuhan (2 hrs), Nanjing (6 hrs), and Shanghai (8 hrs). Wuhan is the provincial capital of Hubei Province. The Wuhan Tianhe International Airport (WUH) serves flights to/from all major Chinese cities (Beijing Capital, Shanghai Pudong, Guangzhou, Hong Kong), as well as Paris, Seoul, Singapore, and Bangkok. Speed trains are served between Wuhan and Beijing (~6 hrs), Shanghai (~6 hrs), and Guangzhou (~4 hrs). Guilin is a tourist city of Guangxi Province. The Guilin Liangjiang International Airport (KWL) serves flights to/from all major Chinese cities (Beijing Capital, Shanghai Pudong, Nanjing, Guangzhou, Hong Kong), as well as Seoul, Singapore and Bangkok. Once you book your flights, make sure to us your itinerary (arrival and departure airports, dates, and flight numbers) so that we can arrange someone to pick you up at the Yichang Airport. See 7. Contact Information for our addresses. 4. MEDICAL, TRAVEL, AND LIABILITY INSURANCE Geological field trips are technical in nature, can be physically rigorous, and may pose possible dangers and hazards. Participants should assume any and all risks involved in connection with this field workshop and symposium. Participants should carry their own medical, travel, and liability insurance. Participants should hold harmless the trip leaders and their institutions from any and all claims, injury, losses, and damages. 5. VISA INFORMATION For those who need a visa to visit China, an invitation letter will be provided upon request. Please contact Dr. Dan Wang at danwang@nigpas.ac.cn, or Chuanming Zhou at cmzhou@nigpas.ac.cn. 6. HOTEL INFORMATION 5

6 Segment 1 hotel: 湖北省宜昌市东山开发区城东大道 26 号宜昌三峡东山酒店 (Three Gorges Dongshan Hotel, No 26 Chengdong Road, Yichang, Hubei Province; Chinese website: We will arrange someone to pick you up at the Yichang Airport if you send us your itinerary. However, please keep our cell numbers with you (Dan Wang: ; Chuanming Zhou: ; Shuhai Xiao: Cell in China ) and print out a copy of the following Chinese characters (which says that Please take me to the Three Gorges Dongshan Hotel at 26 Chengdong Road ) in case you need to show the taxi driver where you want to go. (Top) Map of Yichang showing location of Three Gorges Dongshan Hotel; (Bottom) Photograph of the hotel. Segment 2 hotel: The symposium will be held concurrent with and in the same venue as the Third International Congress of Geobiology (3 rd ICG; a final circular with presentation schedule of this Congress will be forwarded to you when available). The symposium will take place in the New Beacon Luguang International Hotel, where all 6

7 participants will stay for the nights of June The hotel is conveniently located in the city center, about 25 minute walk from the China University of Geosciences (CUG), and about 5 minute walk from the Optics Valley Square subway station (see map below). Labels on map: (A) China University of Geosciences; (B) New Beacon Luguang International Hotel; (C) Exit C of subway station at Optics Valley Square, and Ramada Hotel. Photo: New Beacon Luguang International Hotel. Stylized models of standard single-bed (left) and double-bed rooms (right) in the New Beacon Luguang International Hotel. Segment 2 meals: All meals will be provided on the 3 rd floor of New Beacon Luguang International Hotel. Meal coupons will be provided to you at arrival in Wuhan. Breakfast: 7:00 8:00 am at Tulip Fashion Restaurant on the 3 rd floor (3 meters away from the entrance of elevators). Note that morning presentations start at 8:00 am. Lunch Buffet: 12:00 14:00 pm at Banquet Hall on the 3 rd floor (6 meters away from the entrance of elevators). Note that afternoon presentations start at 14:00 pm. 7

8 Dinner: 18:00 21:00 pm at Banquet Hall in the 3 rd floor. Note that afternoon presentations ends at 18:00 pm. Segment 2 symposium venue: The Ediacaran/Cryogenian symposium will take place in Crystal Hall on the 4 th floor of New Beacon Luguang International Hotel. ICG symposia will be held in Jadeite Hall, Coral Hall, and Amber Hall on the same floor. A floor map is shown below. Venues (Left) Floor map of conference halls on the 4 th floor of New Beacon Luguang Hotel. (Right) A stylized model of the Jadeite hall. Information about Segment 3 logistics will be given in Wuhan. 7. CONTACT INFORMATION Dan Wang: danwang@nigpas.ac.cn, 39 East Beijing Road, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing , China. Tel: , Fax: , Cell: Chuanming Zhou: cmzhou@nigpas.ac.cn, 39 East Beijing Road, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing , China. Tel: , Fax: , Cell Shuhai Xiao: xiao@vt.edu, Department of Geosciences, Virginia Tech, Blacksburg, VA 24061, USA. Tel: , Fax: , Cell in China:

9 Segement 2 Preliminary Schedule (June 16-18; Segement 2) DAY & TIME NAME SEG ROOMMATE ABSTRACT TITLE Day 1 (6/16) AM: ICG Plenary Session (Tentative Schedule below and subject to change) 8:00-8:20 Shucheng XIE Open ceremony 8:20-8:55 Hongfu YIN Geobiological research in China 8:55-9:30 Douglas ERWIN Major evolutionary transitions: A public goods approach 9:30-10:05 Kurt KONHAUSER Oxidative continental weathering before the great oxidation event 10:05-10:30 Tea time, conference photo 10:30-11:05 Xingliang ZHANG Increasing oxygen level controls the sequence of animal appearances during the Cambrian explosion 11:05-11:40 Gregory RETALLACK Precambrian life on land 11:40-12:15 Kai-Uwe HINRICHS What do microbial lipids tell us about the deep biosphere? Day 1 (6/16) PM: Chair Alan J. Kaufman, Chuanming Zhou, Maoyan Zhu 14:00-14:25 (keynote) Jiang, Ganqing single Stratigraphy and geochemical anomalies of the late Neoproterozoic succession in South China 14:30-14:45 Shen, Bing 2 double, Dong Lin Buildup of sulfidic ocean during Snowball Earth 14:50-15:05 Zhou, Chuanming single The stratigraphic complexity of the middle Ediacaran Shuram anomaly in eastern Hubei Province, South China 15:10-15:25 Cui, Huan double, Jay Kaufman Anaerobic oxidation of methane associated with the Shuram event, Doushantuo Formation, South China 15:30-15:45 Wei, Kai 1+2 double, Wang Jianpo Carbon isotope record of the Ediacaran Doushantuo Formation in the eastern Yangtze Gorges, China and its significance for chemostratigraphy 15:50-16:05 She, Zhenbing double Phosphorus cycle in the terminal Proterozoic 16:05-16:20 Tea break 16:20-16:35 Wang, Zhou double, Liu Zerui Tepee structures of the late Ediacaran Dengying Formation in the Yangtze Gorges area, South China and implication for glaciostatic sealevel changes 16:40-16:55 Dong, Lin 2 double, Shen Bing Germanium-silicon systematics of the Ediacaran-Cambrian Laobao cherts: Implications for the bedded chert formation and paleoenvironment interpretations 17:00-17:15 Bold, Uyanga double Litho- and chemostratigraphy of the early Ediacaran strata of the Zaukhan Basin of Mongolia 17:20-17:35 Alvarenga, Carlos JS double Meso-Neoproterozoic chemostratigraphy in central Brazil: a discussion 9

10 DAY & TIME NAME SEG ROOMMATE ABSTRACT TITLE 17:40-18:05 (keynote) Kaufman, AJ double, Cui Huan The effect of seawater redox stratification on early metazoans from the Khatyspyt Formation Day 2 (6/17) AM: Chair Dima Grazhdankin, Shuhai Xiao, Chongyu Yin 8:00-8:25 (keynote) Narbonne, Guy M. 1+2 single Ediacaran megafossils: ecology and evolution of early complex life 8:30-8:45 Liu, Alex double, PW Adamson Late Ediacaran species occurrences in Avalonia, and their utility for biostratigraphic and evolutionary studies 8:50-9:05 Chen, Zhe double Ediacaran fossils in marine limestone from Dengying Formation,China 9:10-9:25 Adamson, Peter William double, Alex Liu Palaeobiology of a Doushantuo-type acanthomorphic acritarch assemblage from the Ediacaran Biskopas Formation, Southern Norway 9:30-9:45 Grazhdankin, Dima double Doushantuo-Pertatataka fossil microbiota and stability of Ediacaran ecosystems 9:50-10:05 Tea break 10:10-10:25 Liu, Pengju single Biostratigraphic succession of acanthomorphic acritarchs of the Ediacaran Doushantuo Formation at the Yangtze Gorges area, South China and its international correlation 10:30-10:45 Yin, Chongyu single New observations of the problematic fossil Tianzhushania from the Early Ediacaran Doushantuo Formation, South China 10:50-11:05 Yin, Zongjun double, J-P Duda Ancestral animals from the Ediacaran Doushantuo Formation, South China 11:10-11:25 Xiao, Shuhai single New observations of phosphatized acanthomorphic acritarchs and animal embryo-like microfossils from the Ediacaran Doushantuo Formation at Weng an 11:30-11:55 (keynote) Erwin, Douglas H single, S2 covered by ICG, Unique aspects of the Ediacaran-Cambrian radiation: Determinism vs contingency Day 2 (6/17) PM: Chair Linzhi Gao, Graham Shields-Zhou, and Xunlai Yuan 14:00-14:25 (keynote) Gehling, James Godfrey double, BI Gehling Australian criteria for subdivision of the Ediacaran 14:30-14:45 Retallack, GJ covered by ICG Ediacaran fossils in petrographic thin sections 14:50-15:05 Yuan, Xunlai single The Lantian biota: A new window onto the origin and early evolution of multicellular organisms 15:10-15:25 Cai, Yaoping 2 double New material of Sinotubulites from the late Ediacaran Dengying Formation, South China 15:30-15:45 Do Carmo, DA double Taxonomy of Cloudina lucianoi (Beurlen & Sommer, 1957), Tamengo Formation, Ediacaran, Mato Grosso Do Sul State, Brazil 10

11 DAY & TIME NAME SEG ROOMMATE ABSTRACT TITLE 15:50-16:05 Tea break 16:10-16:25 Tang, Qing double Organic-walled microfossils from the early Neoproterozoic Liulaobei Formation in the Huainan region of North China and their biostratigraphic significance 16:30-16:45 Nagovitsin, Konstantin double Cryogenian microfossils in the north of Siberian platform 16:50-17:05 Zhang, Qirui double, Deng Weilin The Zhaoxing Member of the Chang'an Formation in the Jiangkou (Sturtian) glaciation in Liping County, Guizhou Province 17:10-17:25 Gao, Linzhi single Cryogenian in South China: Constraints by SHRIMP Zircon U-Pb dating 17:30-17:55 (keynote) Shields-Zhou, Graham double, Zhou Ying Cryogenian Earth history and the enigma of carbon isotope fluctuations Day 3 (6/18) AM: Stagers Pengju Liu, Jinnan Tong, Shuhai Xiao, Chongyu Yin, Xunlai Yuan, Chuanming Zhou, or whoever has material to show Staging and fossil examination (details to be announced) Those who are not interested in fossil examination can attend ICG Precambrian session (schedule below and subject to change) 8:00-8:20 Lauri JOOSU Beginning of bacterially mediated phosphogenesis at 2 Ga ago 8:20-8:40 Zhenbing SHE Oxygenation of the shallow ocean after the Great Oxidation Event: evidence from the ~2.0-Ga Hutuo Group in North China Craton 8:40-9:00 Yuangao QU High spatial resolution carbon isotopic characteristics of organic matter in the Paleoproterozoic Zaonega Formation, Karelia, Russia 9:00-9:20 Dongjie TANG Microfabrics in Mesoproterozoic Microdigitate Stromatolites: Evidence of Biogenicity and Organomineralization at Micron and Nanometer Scales 9:20-9:50 (keynote) Noah J. PLANAVSKY Low Mid-Proterozoic atmospheric oxygen levels and the delayed rise of animals 9:50-10:10 Tea break 10:10-10:30 Sirle LIIVAMÄGI Neoproterozoic Baltic paleosol: tropical weathering at high latitude? 10:30-10:50 Chao LI Marine redox conditions for the preservation of the Miaohe Biota and its implications for the Ediacaran ocean chemistry and life evolution 10:50-11:10 Jan-Peter DUDA Comprehensive geobiological characterization of a bituminous carbonate facies with Ediacara-type fossils (Shibantan Member, South China) 11:10-11:30 Zuodong WANG Temperature effect: A possible pathway for the generation of steranes 11

12 DAY & TIME NAME SEG ROOMMATE ABSTRACT TITLE 11:30-12:00 (keynote) Malcolm WALTER The origin of life on Earth: Some geological constraints Day 3 (6/18) PM: Stagers Pengju Liu, Jinnan Tong, Shuhai Xiao, Chongyu Yin, Xunlai Yuan, Chuanming Zhou, or whoever has material to show Fossil examination (details to be announced) Those who are not interested in fossil examination can attend ICG plenary session (schedule below and subject to change) 14:00-14:35 Michael BENTON Exploring origins of biodiversity: identifying biotic and abiotic drivers 14:35-15:10 David BOTTJER End-Permian and End-Triassic mass extinctions as natural analogues for modern anthropogenic injection of carbon dioxide into the atmosphere 15:10-15:45 Xing XU Origin of birds: Insights from recent Paleontological and Neontological data 15:45-16:20 Joachim REITNER Varied 3.5 Ga carbonates on early Earth - microbial biosignature versus hydrothermal origin 16:20-16:35 Tea break 16:35-17:05 Ariel ANBAR Detecting exoplanetary ecosystems 17:05-17:40 Yongxin PAN Biogeomagnetism: Linking life to Earth s magnetic field 17:40-18:15 John RAVEN The roles of Genomics in Geobiology 18:15-18:20 Hongfu YIN Close ceremony Day 3 (6/18) AM & PM Posters 1) Poster board size: mm, vertically oriented; recommended poster size A0 ( mm), portrait orientation; 2) Posters will be displayed west of Jadeite Hall (W039 W055); see floor map; for your information, posters submitted to ICG Precambrian Geobiology session (W022-W031) are also listed; 3) Posters are set up at 8:00 am at designated booth and will be on display for the entire day; presenters should be present at their posters on the morning or as much as possible; W022 Wenhao ZHANG et al. Mass-occurrence of oncoids at the Cambrian Series Series transition: implications for microbial resurgence following an Early Cambrian extinction W023 Wentian MI et al. Biomarkers of the phosphorites in the Doushantuo Formation at Weng an, Guizhou W024 Min SHI et al. Microbiotic replacement in Mesoproterozoic carbonate series of North China W025 Xiaoying SHI et al. Sunspot cycles recorded in Mesoproterozoic carbonate biolaminites W026 Xinqiang WANG et al. Heterogeneous buffering effect of a large dissolved organic carbon pool and Ediacaran δ 13 C org variations 12

13 DAY & TIME NAME SEG ROOMMATE ABSTRACT TITLE W027 Wei WANG et al. Prebiotic metabolism on the surfaces of transition metal sulfides in submarine hydrothermal vents W028 Mingliang LIANG et al. The occurrence and significance of short-chain (C9-C) steranes and -norhopanes in source rocks from Eastern Xinjiang W029 Yantao ZHANG, et al. The formation mechanism of ambient inclusion trails (AITs) in phosphorites form the Doushantou Formation W030 Feifei ZHANG Cryogenian sulfur and Iron cycles and their palaeogeographic implication W031 Qin YE, et al. Phosphatized fossil assemblage from the Ediacaran Doushantuo Formation in Zhangcunping area, Yichang Province, South China W039 An, Zhihui 2+3 double Neoproterozoic Stratigraphic Sequence and Sedimentary Evolution at Qinglinkou Section, East Yangtze Gorges Area W040 Guan, Chengguo double Fluctuation of shelf basin redox conditions in the early Ediacaran: evidence from Lantian Formation black shales in South China W041 Guimarães, Edi Mendes double, LC Vieira Mineral composition of an Ediacaran sequence: Cacimba Escarpment (Tamengo Formation), Corumbá, MS - Brazil W042 Huang, Kangjun 2 double, Lang Xianguo Mg isotope constraint on the origin of basal Ediacaran cap dolostone W043 Lang, Xianguo 2 double, Huang Kangjun From Sturtian to Marinoan: sedimentary records from the Fulu section, South China W044 Liu, Yuchen Frances double Mapping Neoproterozoic tectono-stratigraphic unconformities in Death Valley, California W045 Liu, Zerui double, Wang Zhou The anomalous oxygen at the boundary of Precambrian and Cambrian: Evidence from C,O isotopes and trace elements preserved in rocks from the Meishucun section, South China W046 Pang, Ke double Unraveling biological information of acritarchs from the Paleo-Mesoproterozoic Ruyang Group W047 Tian, Li 2 double Carbonate seafloor precipitates from the Ediacaran of South China and its paleoceanographic implications W048 Vieira, Lucieth Cruz double, EM Guimarães Chemostratigraphy of the Ediacaran fossiliferous beds from Tamengo Formation (Corumbá Group, Brazil) W049 Wan, Bin double Orbisiana linearis from the early Ediacaran Lantian Formation of South China and its taphonomic and ecological 13

14 DAY & TIME NAME SEG ROOMMATE ABSTRACT TITLE implications W050 Wang, Wei double The oxidation of early-middle Ediacaran ocean W051 Wang, Xinqiang 1 double Heterogeneous buffering effect of a large dissolved organic carbon pool and Ediacaran δ 13 C org variations W052 Yuan, Yuyang double Organic carbon isotope variability and significant in Diben Section, Lower Yangtze, South China W053 Zhou, Ying 2+3 double, Shield-Zhou G Constructing a Neoproterozoic seawater strontium isotope curve Additional Participants Chu, Xuelei double Duda, Jan-peter 1 double, Yin Zongjun Figueiredo, Milene Freitas double Gehling, Brigitte Inara double, Jim Gehling Wang, Jianpo 1 double, Wei Kai Li, Guoxiang 2 single Zhu, Maoyan single Tong Jinnan 1+3 double Chen, Xiang double Chen, Lei double Ouyang, Qing double Wang, Dan double Wang, Jinlong double Li, Jie double 14