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High-precision U-series ages of transported coral blocks on Heron Reef (southern Great Barrier Reef) and storm activity during the past century
Yu, KF; Zhao, JX; Roff, G; Lybolt, M; Feng, YX; Clark, T; Li, S; yukefu@gmail.com
2012
发表期刊PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN0031-0182
卷号337页码:23-36
摘要Transported coral blocks scattered on reef flats have previously been identified as useful proxies for past storm occurrences. High-precision TIMS U-series dating and detailed field observations of 110 coral samples collected from 102 individual transported coral colonies (coral blocks) and 4 transported sections of reef matrix (reef blocks) from the northern side of Heron Reef (southern Great Barrier Reef) indicate that: (1) the youngest age of corals attached to reef blocks may represent the age of possible past storm occurrence, providing a proxy for historical storm reconstruction; (2) most ages of dated storm-transported coral and reef blocks match well relatively with known cyclone and storm events, further supporting that they are good indicators of past storm events; and (3) age distribution and relative probability frequency analysis of the dated coral and reef blocks suggest that there have been eight broad periods of storm occurrence since 1900 AD (1904-1909, 1914-1916, 1935-1941, 1945-1960, 1965-1967, 1976-1977, 1983-1988 and 2001-2007), roughly showing decadal variations. The coral-based storm reconstruction therefore extended the database of past storm occurrences around Heron Reef area. These findings suggest that coral reefs in the southern Great Barrier Reef are frequently influenced by periods of high storm activity, and show strong resilience to natural disturbances over the past century. Additionally, our results show for the first time that the blue skeletal coral Heliopora coerulea (Order: Helioporacae) has U concentrations of only 0.12 to 0.30 ppm, similar to 5-10% that of common reef building corals with white skeletons (Order: Scleractinia), which may be a unique chemical signature of the only living species of the Helioporidae family. (C) 2012 Elsevier B.V. All rights reserved.
部门归属[Yu, Kefu; Zhao, Jianxin; Feng, Yuexing; Clark, Tara; Li, Shu] Univ Queensland, Radiogen Isotope Facil, Ctr Microscopy & Microanal, Brisbane, Qld 4072, Australia; [Yu, Kefu; Li, Shu] Chinese Acad Sci, S China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China; [Roff, George; Lybolt, Matthew] Univ Queensland, Ctr Marine Studies, Brisbane, Qld 4072, Australia; [Roff, George; Lybolt, Matthew] Univ Queensland, ARC Ctr Excellence Coral Reef Studies, Brisbane, Qld 4072, Australia
关键词Storm Activity Storm Frequency Coral Block Reef Block U-series Ages Great Barrier Reef
学科领域Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
语种英语
资助项目海洋地质
WOS记录号WOS:000306032100003
引用统计
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/10335
专题中科院边缘海地质重点实验室
通讯作者yukefu@gmail.com
推荐引用方式
GB/T 7714
Yu, KF,Zhao, JX,Roff, G,et al. High-precision U-series ages of transported coral blocks on Heron Reef (southern Great Barrier Reef) and storm activity during the past century[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2012,337:23-36.
APA Yu, KF.,Zhao, JX.,Roff, G.,Lybolt, M.,Feng, YX.,...&yukefu@gmail.com.(2012).High-precision U-series ages of transported coral blocks on Heron Reef (southern Great Barrier Reef) and storm activity during the past century.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,337,23-36.
MLA Yu, KF,et al."High-precision U-series ages of transported coral blocks on Heron Reef (southern Great Barrier Reef) and storm activity during the past century".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 337(2012):23-36.
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