中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地质与地球物理研究所
  3. 中国科学院地质与地球物理研究所
  4. 中国科学院新生代地质与环境重点实验室
A taphonomic clock based on the coral grain size of beach sediments from the Yongle Atoll, South China Sea

文献类型：期刊论文

作者Li, Yali1,4; Zou, Xinqing4; Tan, Ming3; Ge, Chendong4; Tang, Meng2; Wang, Teng5; Wang, Xuefeng3
刊名GEOMORPHOLOGY
出版日期2023-08-15
卷号435页码:8
关键词230 Th Mean grain size Taphonomic degradation South China Sea
ISSN号0169-555X
DOI10.1016/j.geomorph.2023.108737
英文摘要The grain size characteristics and aging of beach sediments from six islands of the Yongle Atoll, South China Sea, were measured to examine the taphonomic degradation of coral clasts in sediment reservoirs of reef environ-ments. Seventy-one beach sediment samples were collected from 22 transects on 6 islands for sediment char-acteristic analyses, and 16 bulk sand samples and 28 coral samples were selected for 230Th dating. The mean grain size and ages of coral clasts showed a significant negative correlation (F25 =-0.721, p = 0.01). A grain size age model was established to explain the taphonomic degradation mechanism of coral clasts over time, and an empirical relationship between the mean grain size and 230Th ages was obtained from the Yongle Atoll. The mismatch of the taphonomic clock by grain size data was analyzed, and it was mainly caused by the influence of sorting processes and the intrinsic morphology of coral skeletons that occurred at the early stage of the break-down process. The application of the model to a nearby atoll island showed that for coral sediments with ho-mogeneous taphonomic conditions, the predicted age was well matched with the measured age. This work presents a general framework for understanding coral clast degradation trajectories with time in taphonomic environments, and it provides a feasible method to predict the coral age independent of other dating methods.
WOS关键词BORING SPONGE CLIONA ; GREAT-BARRIER-REEF ; CARBONATE PRODUCTION ; ISLAND ; FORAMINIFERA ; MAINTENANCE ; HURRICANES ; BIOEROSION ; AUSTRALIA ; FRAMEWORK
资助项目Collaborative Inno- vation Center of South China Sea Studies of Nanjing University ; Natural Science Foundation of Jiangsu Province[BK20130056] ; Key Laboratory of Cenozoic Geology and Environment of the Chinese
WOS研究方向Physical Geography ; Geology
语种英语
WOS记录号WOS:001011969700001
出版者ELSEVIER
资助机构Collaborative Inno- vation Center of South China Sea Studies of Nanjing University ; Collaborative Inno- vation Center of South China Sea Studies of Nanjing University ; Natural Science Foundation of Jiangsu Province ; Natural Science Foundation of Jiangsu Province ; Key Laboratory of Cenozoic Geology and Environment of the Chinese ; Key Laboratory of Cenozoic Geology and Environment of the Chinese ; Collaborative Inno- vation Center of South China Sea Studies of Nanjing University ; Collaborative Inno- vation Center of South China Sea Studies of Nanjing University ; Natural Science Foundation of Jiangsu Province ; Natural Science Foundation of Jiangsu Province ; Key Laboratory of Cenozoic Geology and Environment of the Chinese ; Key Laboratory of Cenozoic Geology and Environment of the Chinese ; Collaborative Inno- vation Center of South China Sea Studies of Nanjing University ; Collaborative Inno- vation Center of South China Sea Studies of Nanjing University ; Natural Science Foundation of Jiangsu Province ; Natural Science Foundation of Jiangsu Province ; Key Laboratory of Cenozoic Geology and Environment of the Chinese ; Key Laboratory of Cenozoic Geology and Environment of the Chinese ; Collaborative Inno- vation Center of South China Sea Studies of Nanjing University ; Collaborative Inno- vation Center of South China Sea Studies of Nanjing University ; Natural Science Foundation of Jiangsu Province ; Natural Science Foundation of Jiangsu Province ; Key Laboratory of Cenozoic Geology and Environment of the Chinese ; Key Laboratory of Cenozoic Geology and Environment of the Chinese
源URL[http://ir.iggcas.ac.cn/handle/132A11/111243]  
专题地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
通讯作者Zou, Xinqing
作者单位1.Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai 519000, Peoples R China
2.State Ocean Adm, South China Sea Marine Survey & Technol Ctr, Guangzhou 510275, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
4.Nanjing Univ, Collaborat Innovat Ctr South China Sea Studies, Sch Geog & Ocean Sci, Minist Educ,Key Lab Coast & Isl Dev, Nanjing 210093, Peoples R China
5.Hohai Univ, Coll Oceanog, Nanjing, Peoples R China
推荐引用方式
GB/T 7714		 Li, Yali,Zou, Xinqing,Tan, Ming,et al. A taphonomic clock based on the coral grain size of beach sediments from the Yongle Atoll, South China Sea[J]. GEOMORPHOLOGY,2023,435:8.
APA Li, Yali.,Zou, Xinqing.,Tan, Ming.,Ge, Chendong.,Tang, Meng.,...&Wang, Xuefeng.(2023).A taphonomic clock based on the coral grain size of beach sediments from the Yongle Atoll, South China Sea.GEOMORPHOLOGY,435,8.
MLA Li, Yali,et al."A taphonomic clock based on the coral grain size of beach sediments from the Yongle Atoll, South China Sea".GEOMORPHOLOGY 435(2023):8.

入库方式： OAI收割

来源：地质与地球物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。