气候变化领域集成服务门户(CCPortal): Late-glacial and Holocene glacier fluctuations in North Island; New Zealand

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DOI	10.1016/j.quascirev.2019.105914
	Late-glacial and Holocene glacier fluctuations in North Island; New Zealand
	Eaves S.R.; Winckler G.; Mackintosh A.N.; Schaefer J.M.; Townsend D.B.; Doughty A.M.; Jones R.S.; Leonard G.S.
发表日期	2019
ISSN	0277-3791
卷号	223
英文摘要	Geological records of past glacier extent can yield important constraints on the timing and magnitude of pre-historic climate change. Here we present a cosmogenic 3He moraine chronology from Mt. Ruapehu in central North Island, New Zealand that records fluctuations of New Zealand's northernmost glaciers over the last 14,000 years. In the Mangaehuehu Glacier catchment, exposure ages and geomorphic observations at our most distal moraine site, relative to the current glacier margin, show that glacial retreat during the last glacial termination was interrupted by one or more readvances between 14 and 11 ka. Further up-valley, moraine boulders deposited at 4.5 ka indicate that glaciers were more extensive during the mid-Holocene than at any later time. The youngest exposure ages in our study, 150–450 years, constrain the formation of moraines situated within 500 m from the present-day Mangaehuehu Glacier terminus. These ages are in agreement with historic sources that show the glacier close to these moraine limits approximately 100 years ago. Overall our data show that glaciers on Mt. Ruapehu retreated c. 3 km since 14 ka, in response to a net rise in the local equlibrium line altitude of c. 400 m. The magnitude of post-industrial snowline rise and glacier retreat on Mt. Ruapehu is also consistent with instrumental temperature data that record approximately 0.9 ∘C of warming during the 20th century. © 2019 Elsevier Ltd
英文关键词	Cosmogenic isotopes; Geomorphology; Glacial; Glaciation; Holocene; Paleoclimatology; Quaternary; Southern pacific
语种	英语
scopus关键词	Catchments; Climate change; Geomorphology; Cosmogenic isotopes; Glacial; Glaciation; Holocenes; Paleoclimatology; Quaternary; Southern pacific; Glacial geology; climate variation; cosmogenic radionuclide; geomorphological response; glacial history; glaciation; glacier retreat; Holocene; isotopic composition; moraine; snowline; New Zealand; Pacific Ocean; Pacific Ocean (South)
来源期刊	Quaternary Science Reviews
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/151742
作者单位	Antarctic Research Centre, Victoria University of Wellington, PO Box 600, Wellington, 6140, New Zealand; School of Geography, Environment and Earth Sciences, Victoria University of Wellington, PO Box 600, Wellington, 6140, New Zealand; Lamont–Doherty Earth Observatory, Columbia University, Palisades, NY 10964, United States; School of Earth, Atmosphere and Environment, Monash University, Room 124, 9 Rainforest Walk, Clayton, Victoria, 3800, Australia; GNS Science, P.O. Box 30-368, Lower Hutt, 5040, New Zealand; Bates College, 2 Andrews Road, Lewiston, ME 04240-6028, United States; Department of Geography, Durham University, South Road, Durham, DH1 3LE, United Kingdom
推荐引用方式 GB/T 7714	Eaves S.R.,Winckler G.,Mackintosh A.N.,et al. Late-glacial and Holocene glacier fluctuations in North Island; New Zealand[J],2019,223.
APA	Eaves S.R..,Winckler G..,Mackintosh A.N..,Schaefer J.M..,Townsend D.B..,...&Leonard G.S..(2019).Late-glacial and Holocene glacier fluctuations in North Island; New Zealand.Quaternary Science Reviews,223.
MLA	Eaves S.R.,et al."Late-glacial and Holocene glacier fluctuations in North Island; New Zealand".Quaternary Science Reviews 223(2019).