Holocene climatic events in Northern Arabia - Environmental changes and human response

阿拉伯北部全新世气候事件 - 环境变化和人类反应

基本信息

批准号：
266772869
负责人：
Dr. Max Engel
金额：
--
依托单位：
Institut für Geographische Wissenschaften
依托单位国家：
德国
项目类别：
Research Grants
财政年份：
2014
资助国家：
德国
起止时间：
2013-12-31 至 2018-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/266772869?language=en
关键词：
Holocene climatic events Northern Arabia

项目摘要

The Arabian Peninsula experienced tremendous climatic and landscape changes during the late Quaternary. Climate archives, such as palaeo-lakes and speleothems, indicate an early Holocene humid period and gradual aridisation since then, leading to today's hyperarid conditions in major parts of Arabia. Whereas plenty of local records are available for the southern peninsula, evidence from its northern part is scarce and not many details regarding the onset of wet conditions and their impact on the physical landscape and cultural developments are known. This proposal aims at exploring the unique geoarchive of the palaeo-lake or sabkha, respectively, at Tayma (NW Saudi Arabia) in detail, which has already proven its excellent suitability. A high-resolution multi-proxy record of climate-, landscape-, and settlement-related parameters will be generated, including microfacies distribution, carbonate (Ca, Mg, Sr), carbon (total C [TC], total inorganic C [TIC], total organic C [TOC]), stable isotopes (d13C, d15N, d18O), indicative element content (micro-XRF), magnetic susceptibility, mineralogy (XRD), macrofauna (gastropod shells, barnacles), ostracods (diversity/abundance, valve-based isotopic composition, trace metal/Ca ratios, valve/carapace ratio, juvenile/adult ratio, dissolution features, sieve-pore analysis, noding, valve size distribution), foraminifers (diversity/abundance, test malformation), diatoms (diversity/abundance, diatom concentration, isotopic composition, planktic/benthic ratio), gyrogonites, lipid biomarkers, pollen and anthracological remains. This record, together with a robust AMS-14C- and OSL-based chronology, mapped geomorphic features of former lake level stands and the extensive archaeological record generated by a long-term excavation project at Tayma, will provide answers to a wide spectrum of burning research questions regarding landscape changes on a local and (supra-)regional scale, the source of additional early Holocene moisture, regional environmental response to rapid climate changes, and the influence on climatic and environmental changes on settlement patterns, socio-technological evolution, and economic practices.

阿拉伯半岛在晚期晚期经历了巨大的气候和景观变化。气候档案（例如古湖和棘手）表明，自那时以来，全新世的潮湿时期和逐渐干旱，导致今天阿拉伯主要地区的Hyperarid条件。尽管有许多当地记录可用于南部半岛，但其北部的证据却很少，而且有关潮湿条件及其对物理景观和文化发展的影响的细节并不多。该提案旨在详细探讨在Tayma（NW Saudi Arabia）的独特的古湖或Sabkha的独特地理结构，这已经证明了其出色的适合性。将生成气候，景观和与沉降相关的参数的高分辨率多功能记录，包括微指质分布，碳酸盐（CA，MG，SR），碳（总C [TC]，总C [TC]，无机C [tic ]，总有机C [TOC]），稳定的同位素（D13C，D15N，D18O），指示性元素含量（Micro-XRF），磁敏感性，矿物质学（XRD），大氟娜（gastrofauna）（胃足动物壳，barnacles，barnacles，barnacles），多样性/bundance（多样性/bundance ostrance/bundance），基于阀的同位素组成，痕量金属/Ca比，阀/甲壳比，少年/成人比率，溶出特征，筛子分析，点点滴滴，阀尺寸分布），有孔虫（多样性/丰度，测试畸形），硅藻（多样性/丰富度，硅藻浓度，同位素组成，浮游/底栖比），旋转岩，脂质生物标志物，花粉和人类学遗骸。该记录以及强大的AMS-14C和基于OSL的年表，绘制了以前的湖泊水平摊位的地貌特征，以及Tayma的长期发掘项目产生的广泛考古记录，将为广泛燃烧的范围提供答案有关景观在当地和（上）区域尺度上发生变化的研究问题，额外的全新世湿度的来源，对快速气候变化的区域环境反应以及对气候和环境变化对定居方式的影响，社会技术进化，以及经济实践。