A U-Th Dating Approach to Understanding Past Coral Reef Dynamics and Geomorphological Constraints on Future Reef Growth Potential; Mazie Bay, Southern Great Barrier Reef
文献类型：期刊论文
| 作者 | Leonard, Nicole D.; Lepore, Mauro L.; Zhao, Jian-xin; Rodriguez-Ramirez, Alberto; Butler, Ian3; Clark, Tara R.; Roff, George; McCook, Laurence5,6; Nguyen, Ai D.; Feng, Yuexing |
| 刊名 | PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY
 |
| 出版日期 | 2020 |
| 卷号 | 35期号:2页码:UNSP e2019PA003768 |
| ISSN号 | 2572-4517 |
| DOI | 10.1029/2019PA003768 |
| 英文摘要 | Reconstructing coral reef histories provides a window of understanding into reef response to changing environmental and climatic conditions over various temporal scales. Here we present the results of 117 U-Th dates from emergent reef flat and slope cores and surface death assemblages, combined with previously published fossil microatoll data, to capture the entire sequence of reef growth at Mazie Bay, inshore Southern Great Barrier Reef (GBR). Coral U-Th dates indicate that Mazie Bay reef initiated similar to 6,900 years before present (yr. BP) quickly filling accommodation space. While rates of vertical reef accretion (5.3 +/- 1.0 mm year(-1)) were comparable to the GBR average during the mid-Holocene (similar to 5.0 mm year(-1)), reef flat progradation occurred at a rate 1.5- to 6-fold previous GBR rates until 5,100 yr. BP (similar to 70.4 cm year(-1)). Average progradation slowed to similar to 7.1 cm year(-1) in the subsequent similar to 4,000 years and reef slope cores indicate this reef had largely "turned-off" by 400 yr. BP, with modern coral communities existing as a veneer over the largely senescent framework. Death assemblage dates highlight coral disturbance and recovery regimes in response to increased cyclone activity 1960-1985 AD and recent extreme sea surface temperature and flood events post 2000 AD. U-Th dating of mid-Holocene to modern coral deposits from Mazie Bay reef provides a unique insight into past reef development, response to recent disturbance regimes, and potential for future reef growth. In the case of Mazie Bay, our data suggest limited accommodation space and increased occurrence of sea surface temperature extremes will restrict future reef growth at this site. |
| 资助机构 | National Environmental Research Programme Tropical Ecosystems Hub Project 1.3 [Y-xF]; Australian Research CouncilAustralian Research Council [DP180102526]; Australian Research Council Linkage, Infrastructure, Equipment and Facilities (LIEF)Australian Research Council [Y-xF, LE0989067] ; National Environmental Research Programme Tropical Ecosystems Hub Project 1.3 [Y-xF]; Australian Research CouncilAustralian Research Council [DP180102526]; Australian Research Council Linkage, Infrastructure, Equipment and Facilities (LIEF)Australian Research Council [Y-xF, LE0989067] |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/18500]  |
| 专题 | 南海海洋研究所_中科院海洋生物资源可持续利用重点实验室 |
| 作者单位 | 1.Univ Queensland, Sch Earth & Environm Sci, Radiogen Isotope Facil, Brisbane, Qld, Australia 2.Lepore, Mauro L.; Rodriguez-Ramirez, Alberto; Butler, Ian; Roff, George; McCook, Laurence; Pandolfi, John M.] Univ Queensland, Sch Biol Sci, Ctr Excellence Coral Reef Studies, Ctr Marine Sci,Australian Res Council, Brisbane, Qld, Australia 3.Lepore, Mauro L.] Smithsonian Trop Res Inst, Smithsonian Natl Museum Nat Hist, Washington, DC USA 4.CoraLog Environm Consulting, Cook, Australia 5.Clark, Tara R.] Univ Wollongong, Sch Earth Atmospher & Life Sci, Wollongong, NSW, Australia 6.Chinese Acad Sci, South China Sea Inst Oceanol, CAS Key Lab Trop Marine Bioresources & Ecol, Guangzhou, Peoples R China 7.James Cook Univ, ARC Ctr Excellence Coral Reef Studies, Townsville, Qld, Australia |
| 推荐引用方式 GB/T 7714 | Leonard, Nicole D.,Lepore, Mauro L.,Zhao, Jian-xin,et al. A U-Th Dating Approach to Understanding Past Coral Reef Dynamics and Geomorphological Constraints on Future Reef Growth Potential; Mazie Bay, Southern Great Barrier Reef[J]. PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY,2020,35(2):UNSP e2019PA003768. |
| APA | Leonard, Nicole D..,Lepore, Mauro L..,Zhao, Jian-xin.,Rodriguez-Ramirez, Alberto.,Butler, Ian.,...&Pandolfi, John M..(2020).A U-Th Dating Approach to Understanding Past Coral Reef Dynamics and Geomorphological Constraints on Future Reef Growth Potential; Mazie Bay, Southern Great Barrier Reef.PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY,35(2),UNSP e2019PA003768. |
| MLA | Leonard, Nicole D.,et al."A U-Th Dating Approach to Understanding Past Coral Reef Dynamics and Geomorphological Constraints on Future Reef Growth Potential; Mazie Bay, Southern Great Barrier Reef".PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY 35.2(2020):UNSP e2019PA003768. |
入库方式： OAI收割
来源：南海海洋研究所
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