Magnetostratigraphy of Pleistocene Sediments from the Republic of Georgia - Dating and Correlation of Climate Signals

格鲁吉亚共和国更新世沉积物的磁性地层学 - 气候信号的年代测定和相关性

基本信息

  • 批准号:
    245125135
  • 负责人:
  • 金额:
    --
  • 依托单位:
  • 依托单位国家:
    德国
  • 项目类别:
    Research Grants
  • 财政年份:
    2013
  • 资助国家:
    德国
  • 起止时间:
    2012-12-31 至 2017-12-31
  • 项目状态:
    已结题

项目摘要

The discovery of hominin remains of as many as six individuals, approx. 1.8 Ma in age, in Dmanisi, Southern Georgia, marks the first appearance of human occupation in Eurasia, significantly earlier than previously thought and thus changed our understanding of the causes of the first wave of emigration out of Africa substantially. Recent studies have shown, that the only African elements in the Dmanisi site are the remains of Homo Georgicus itself and associated tools. Unambiguous European affinities of the Dmanisi fauna do not support the idea, that the early hominins followed the migration patterns of large herbivores to ensure their food supply. The details of the Dmanisi hominins furthermore suggest, that local or global changes in climate are the key driving factor for early humans to venture towards Europe, because other hypothesis are disproved. In the early Pleistocene, rapid changes of warm/cold periods are documented based on global oxygen isotope records. It has been proposed, that during one of the warm periods the onset of desertification in eastern Africa forced early hominins to migrate into Europe. It is debated, however, whether the human remains in Georgia demonstrate favorable climatic conditions for early hominins and prove a long term occupation of this area, or the Caucasus represents a stepping stone along a migration path into Eurasia. For investigation of local climatic conditions, high resolution palynology is an ideal technique to map the paleoenvironmental conditions and local responses to global climate. For such studies, however, very precise age control isinevitable.High resolution magnetostratigraphy has been shown to be a very precise correlation and dating tool especially concerning young sediments. Thus, magnetostratigraphy provides the basis for successful studies of short term variations of the paleoenvironment.In Western Georgia there are a number of sedimentary sections with proposed deposition ages from ~3 million years up to the present. This time span includes the hominid bearing deposits at Dmanisi as well as lake sediments from Armenia studied earlier (Ba1210/14-1). What makes the Georgian shallow marine sections special, however, is the extremely large amounts of pollen which can give a high resolution picture of the paleoenvironmental conditions during times of human migration through the Caucasus. Correlating the magnetostratigraphic data from Georgia with those from Armenia will allow us to compare the climatic situation in Western Georgia and Armenia during the Pleistocene.It is therefore planned to study two large sections in Guria which cover a sufficiently long time span to include the 1.8 Ma time mark (age of the Dmanisi hominins) and the southern Armenian sections. The results of this study will contribute to a precise reconstruction of the paleoclimate and paleoenvironment of the Caucasus during a crucial phase of hominin occupation in the area.
发现的古人类遗骸多达六个人,大约。1.8格鲁吉亚南部德马尼西的Ma in age标志着欧亚大陆首次出现人类占领,比以前认为的要早得多,从而大大改变了我们对第一波非洲移民潮原因的理解。最近的研究表明,德马尼西遗址中唯一的非洲元素是乔治亚人本身和相关工具的遗骸。德马尼西动物群的非纳米比亚欧洲亲缘关系并不支持这种观点,即早期人类遵循大型食草动物的迁移模式,以确保他们的食物供应。德马尼西古人类的细节进一步表明,局部或全球气候变化是早期人类冒险前往欧洲的关键驱动因素,因为其他假设被推翻。在早更新世,全球氧同位素记录证明了暖/冷时期的快速变化。有人提出,在一个温暖的时期,东非荒漠化的开始迫使早期人类迁移到欧洲。然而,有争议的是,是否在格鲁吉亚的人类遗骸证明了早期人类的有利气候条件,并证明了这一地区的长期占领,或者高加索代表了一个踏脚石沿着迁移到欧亚大陆的路径。高分辨率孢粉学是研究局部气候条件的理想技术,可用于研究古环境条件和局部对全球气候的响应。然而,对于这样的研究,非常精确的年龄控制是不可避免的。高分辨率磁性地层学已被证明是一种非常精确的对比和定年工具,特别是对于年轻的沉积物。因此,磁性地层学为成功研究古环境的短期变化提供了基础。在格鲁吉亚西部,有许多沉积剖面,推测沉积年龄从300万年到现在。这一时间跨度包括德马尼西的人科沉积物以及之前研究过的亚美尼亚湖泊沉积物(Ba 1210/14-1)。然而,格鲁吉亚浅海部分的特殊之处在于,它含有大量的花粉,这些花粉可以提供人类通过高加索迁移期间古环境条件的高分辨率图像。将来自格鲁吉亚和亚美尼亚的磁性地层学数据进行对比,将使我们能够比较更新世期间格鲁吉亚西部和亚美尼亚的气候状况,因此计划研究古里亚的两个大剖面,这两个剖面覆盖了足够长的时间跨度,包括1.8 Ma时间标记(Dmanisi人类的年龄)和亚美尼亚南部剖面。这项研究的结果将有助于精确重建的古气候和古环境的高加索地区的人类占领的关键阶段。

项目成果

期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)

数据更新时间:{{ journalArticles.updateTime }}

{{ item.title }}
{{ item.translation_title }}
  • DOI:
    {{ item.doi }}
  • 发表时间:
    {{ item.publish_year }}
  • 期刊:
  • 影响因子:
    {{ item.factor }}
  • 作者:
    {{ item.authors }}
  • 通讯作者:
    {{ item.author }}

数据更新时间:{{ journalArticles.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ monograph.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ sciAawards.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ conferencePapers.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ patent.updateTime }}

Professor Dr. Valerian Bachtadse其他文献

Professor Dr. Valerian Bachtadse的其他文献

{{ item.title }}
{{ item.translation_title }}
  • DOI:
    {{ item.doi }}
  • 发表时间:
    {{ item.publish_year }}
  • 期刊:
  • 影响因子:
    {{ item.factor }}
  • 作者:
    {{ item.authors }}
  • 通讯作者:
    {{ item.author }}

{{ truncateString('Professor Dr. Valerian Bachtadse', 18)}}的其他基金

Paleomagnetism of Permian Basins in Morocco - A Contribution to Late Paleozoic Geodynamivs in the Western Mediterranean
摩洛哥二叠纪盆地的古地磁——对西地中海晚古生代地球动力学的贡献
  • 批准号:
    374919867
  • 财政年份:
    2017
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Determination and appraisal of pyroclastic flow directions using magnetic anisotropy on ignimbrites from Mount Aragats, Armenia
利用亚美尼亚阿拉加茨山熔结岩的磁各向异性确定和评估火山碎屑流方向
  • 批准号:
    273101564
  • 财政年份:
    2014
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Paleomagnetic studies of Hercynian dyke provinces in the Western Mediterranean: Quantification and tectonic implications of crustal block rotations
西地中海海西岩脉省的古地磁研究:地壳块旋转的量化和构造意义
  • 批准号:
    239681660
  • 财政年份:
    2013
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Magnetostrategraphy and rock-magnetism of the Mead Stream section (Late Cretaceous - mid Eocene), New Zealand
新西兰米德溪剖面(白垩纪晚期 - 始新世中期)的磁地层学和岩石磁性
  • 批准号:
    213849507
  • 财政年份:
    2012
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Strain rate analysis of the Kyrgyz Tien Shan from GPS and paleomagnetic data
利用 GPS 和古地磁数据分析吉尔吉斯天山的应变率
  • 批准号:
    207156275
  • 财政年份:
    2011
  • 资助金额:
    --
  • 项目类别:
    Research Grants
High Resolution Paleomagnetism and Magnetostratigraphy of Ferrar Volcanic rocks from the Southern Mesa Range (North Victoria Land, Antarctica)
梅萨山脉南部(南极洲北维多利亚地)费拉尔火山岩的高分辨率古地磁学和磁性地层学
  • 批准号:
    131563479
  • 财政年份:
    2009
  • 资助金额:
    --
  • 项目类别:
    Infrastructure Priority Programmes
Large Accretionary Complexes of the World: Evolution of the southern segment of the Central Asian Orogenic Belt
世界大型增生杂岩:中亚造山带南段的演化
  • 批准号:
    55313431
  • 财政年份:
    2008
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Paläomagnetische Quantifizierung neogener Blockrotationen an einer aktiven, transtensionalen Plattengrenze, Baja California, Mexiko
墨西哥下加利福尼亚州活跃转张板块边界新近纪地块旋转的古地磁定量
  • 批准号:
    37108510
  • 财政年份:
    2008
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Magnetostratigraphy of Plio-Pleistocene Lake Sediments from Armenia (Magnetostratigraphie Plio-Pleistozäner Seesedimente aus Armenien)
亚美尼亚普利翁-更新世湖沉积物的磁性地层学
  • 批准号:
    81200316
  • 财政年份:
    2008
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Absolute paleointensities on cretaceous kimberlites in Botswana
博茨瓦纳白垩纪金伯利岩的绝对古强度
  • 批准号:
    55068635
  • 财政年份:
    2008
  • 资助金额:
    --
  • 项目类别:
    Research Grants

相似海外基金

Deciphering the Subantarctic South Pacific Ocean’s Role in Pleistocene Climate Evolution with IODP Expedition 383 Sediments
利用 IODP 383 号探险队沉积物解读亚南极南太平洋在更新世气候演化中的作用
  • 批准号:
    2305426
  • 财政年份:
    2023
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
Deciphering the Subantarctic South Pacific Ocean’s Role in Pleistocene Climate Evolution with IODP Expedition 383 Sediments
利用 IODP 383 号探险队沉积物解读亚南极南太平洋在更新世气候演化中的作用
  • 批准号:
    2305428
  • 财政年份:
    2023
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
Deciphering the Subantarctic South Pacific Ocean’s Role in Pleistocene Climate Evolution with IODP Expedition 383 Sediments
利用 IODP 383 号探险队沉积物解读亚南极南太平洋在更新世气候演化中的作用
  • 批准号:
    2305427
  • 财政年份:
    2023
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
Building benchmark Pliocene-Pleistocene palaeomagnetic records using sediments cored during IODP Expedition 397 (Iberian Margin Palaeoclimate)
使用 IODP 探险 397 期间取芯的沉积物建立基准上新世-更新世古地磁记录(伊比利亚边缘古气候)
  • 批准号:
    NE/X016218/1
  • 财政年份:
    2022
  • 资助金额:
    --
  • 项目类别:
    Research Grant
Controls of climate versus tectonic effects in Pleistocene mixed carbonate-siliciclastic sediments (Polis basin, NW Cyprus)
更新世混合碳酸盐-硅质碎屑沉积物中气候与构造效应的控制(塞浦路斯西北部波利斯盆地)
  • 批准号:
    2743520
  • 财政年份:
    2022
  • 资助金额:
    --
  • 项目类别:
    Studentship
Clarifying abrupt changes in the terrestrial environment from the aeolian sediments sequence between the end of the middle Pleistocene and the Holocene
从中更新世末期至全新世之间的风成沉积物序列阐明陆地环境的突变
  • 批准号:
    21H00629
  • 财政年份:
    2021
  • 资助金额:
    --
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
EAGER: Testing Late-Pleistocene and Holocene Climate Change in Southeastern Australia with Multi-proxy Analyses of Alpine Lake Sediments, Kosciuszko National Park, Australia
EAGER:通过对澳大利亚科修斯科国家公园高山湖泊沉积物的多代理分析来测试澳大利亚东南部更新世晚期和全新世气候变化
  • 批准号:
    2023027
  • 财政年份:
    2020
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
Pleistocene Palaeoecology of Olduvai Gorge (Tanzania) through the study of archaeological sediments
通过考古沉积物研究奥杜瓦伊峡谷(坦桑尼亚)的更新世古生态学
  • 批准号:
    2241648
  • 财政年份:
    2019
  • 资助金额:
    --
  • 项目类别:
    Studentship
Pleistocene Sediments around South Georgia: archives for Antarctic Circumpolar Current dynamics and climate-induced signals in Sub-Antarctica (Past-ACC)
南乔治亚岛周围的更新世沉积物:南极绕极流动力学和亚南极洲气候诱发信号的档案(过去 ACC)
  • 批准号:
    424484222
  • 财政年份:
    2019
  • 资助金额:
    --
  • 项目类别:
    Infrastructure Priority Programmes
Revealing the paleoclimate during the early middle Pleistocene by the high-resolution multi-proxy analyses of the paleo-lake sediments around Lake Biwa
通过对琵琶湖周围古湖沉积物的高分辨率多代理分析揭示中更新世早期的古气候
  • 批准号:
    18H03609
  • 财政年份:
    2018
  • 资助金额:
    --
  • 项目类别:
    Grant-in-Aid for Scientific Research (A)
{{ showInfoDetail.title }}

作者:{{ showInfoDetail.author }}

知道了