气候变化领域集成服务门户(CCPortal): Establishment of high-resolution tephrostratigraphic correlations between marine (ODP Sites 964, 967 and 969) and terrestrial (Tenaghi Philippon) climate records in the Eastern Mediterranean region: towards determining leads and lags in abrupt climate change during MIS 12 and 11

CCPortal

	Establishment of high-resolution tephrostratigraphic correlations between marine (ODP Sites 964, 967 and 969) and terrestrial (Tenaghi Philippon) climate records in the Eastern Mediterranean region: towards determining leads and lags in abrupt climate change during MIS 12 and 11
项目编号	http://gepris.dfg.de/gepris/projekt/286415454
	Professor Dr. MarioTrieloff (Co-Applicant); Professor Dr. JörgPross (Applicant); Dr. AndreasKoutsodendris (Applicant)
项目主持机构	Ruprecht-Karls-Universität Heidelberg;Ruprecht-Karls-Universität Heidelberg
开始日期	2015
英文摘要	The project aims at establishing the first distal tephra correlations in the Eastern Mediterranean region for Marine Isotope Stages (MIS) 12 and 11. This approach will provide robust chronologies and allow direct land-sea correlations, which are a prerequisite for determining leads and lags between marine and terrestrial components of the climate system. The project goals will be achieved via high-resolution analyses of macro- and notably cryptotephras from three ODP sites (Site 964 - Ionian Sea; Sites 969 and 967 - Levantine Basin) and one terrestrial record (Tenaghi Philippon, Greece). Specifically, the project will (i) unravel the spatiotemporal distribution of macro- and cryptotephras during MIS 12-11 in the Eastern Mediterranean region; (ii) develop a novel methodology for the efficient detection of cryptotephras using m-XRF scanning; (iii) establish direct land-sea correlations in the Eastern Mediterranean region, with a particular focus on critical time intervals within MIS 12 and 11. The selected records are particularly well suited for addressing the objectives of the proposed project because they (i) are continuous and span MIS 12-11 completely; (ii) are located downwind with regard to the major Eastern Mediterranean volcanic sources; (iii) preserve numerous tephra layers as shown by previous studies and preliminary work of the applicants; and (iv) record pronounced signals of past abrupt climate change. The main project goals will be tackled through three work packages: WP1 will yield high-resolution m-XRF scanning datasets of the MIS 12-11 intervals from ODP Sites 964, 967 and 969, and from Tenaghi Philippon to identify the positions of cryptotephras based on changes in the elemental composition of the sediments. WP2 will verify the positions of cryptotephras in all cores using light microscopy, and determine their geochemical signature using electron microprobe and laser ablation ICP-MS techniques. This will allow to identify the volcanic sources, ultimately leading to the establishment of precise distal tephra correlations. WP3, proposed for the third project year, will focus on 40Ar/39Ar dating of tephras, the establishment of the first land-sea correlations in the Eastern Mediterranean region for MIS 12-11, and the assessment of leads and lags between marine and terrestrial components of the climate system. The outcome of the project will be a high-resolution tephrostratigraphy for the Eastern Mediterranean region during the most extreme glacial (MIS 12) and interglacial (MIS 11) of the Middle Pleistocene. Through the establishment of precise land-sea correlations between marine and terrestrial records, the project will contribute to a better understanding of the spatiotemporal pattern of short-term climate and environmental variability in the Eastern Mediterranean region.
学科分类	0802 - 地质学;08 - 地球科学
资助机构	DE-DFG
项目类型	Research Grants
URL	http://gepris.dfg.de/gepris/projekt/286415454
国家	DE
语种	英语
文献类型	项目
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/70081
推荐引用方式 GB/T 7714	Professor Dr. MarioTrieloff ,Professor Dr. JörgPross ,Dr. AndreasKoutsodendris .Establishment of high-resolution tephrostratigraphic correlations between marine (ODP Sites 964, 967 and 969) and terrestrial (Tenaghi Philippon) climate records in the Eastern Mediterranean region: towards determining leads and lags in abrupt climate change during MIS 12 and 11.2015.