Testing the stratigraphic and paleoenvironmental resolution of sediment drifts off West Antarctica for IODP drilling
测试 IODP 钻探西南极洲沉积物漂移的地层和古环境分辨率
基本信息
- 批准号:NE/I006214/1
- 负责人:
- 金额:$ 6.44万
- 依托单位:
- 依托单位国家:英国
- 项目类别:Research Grant
- 财政年份:2010
- 资助国家:英国
- 起止时间:2010 至 无数据
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
There is intense scientific and public interest in the potential response of the Antarctic Peninsula and West Antarctica ice sheets to global warming. Recent observations suggest that this region is undergoing rapid changes including warming, ice-shelf disintegration, ice-sheet thinning and retreat. These recent changes need to be considered in a longer geological context by studying marine sediments proximal to the West Antarctic and Antarctic Peninsula Ice-Sheets. Toward this end, we have submitted and IODP proposal, currently awaiting scheduling, to drill a serie of sites on sediment drifts located in the Bellinghausen Sea (Pacific Ocean). Imprecise chronological control, due in large part to lack of foraminiferal carbonate for isotopic analysis, has stymied paleoceanographic interpretations of sediment cores from the Southern ocean. In preparation for the anticipated IODP expedition, we propose a 'proof-of-concept' study to apply the main paleoceanographic and stratigraphic methods to be employed in the study of the long sequences to be recovered by IODP. We will study piston core PC466 taken at one of the proposed IODP Sites (Pen-1), It was recovered at a water depth of 2400m on a sediment drift on the continental rise in the Bellinghausen Sea (64S, 69W ) by the British Antarctic Survey on RRS James Clark Ross. This short sedimentary record of 10.5 meters spans the last glacial period (~70,000 years) with high sedimentation rates and exhibiting distinct millennial-scale variability in both elemental composition (XRF) and magnetic susceptibility. Our goals for core PC-466 are three-fold. 1) Develop an accurate age model that can be used for stratigraphic correlation to other marine sediment cores and polar ice cores in both hemispheres. 2) Study the advance and retreat of ice sheets using ice-rafted detritus. 3) Reconstruct surface water conditions (temperature, salinity, carbonate-ion concentration, and sea ice). If we are successful in demonstrating that it is possible to apply traditional stratigraphic and paleoceanographic tools to the last glacial period of core PC-466, (a time period that paleoclimatologists and paleoceanographers know best), then we can be reasonably confident that such approaches will work for thousands of meters of record envisaged by proposal-732 and covering the last several million years.
南极半岛和南极洲西部冰盖对全球变暖的潜在反应引起了科学界和公众的强烈兴趣。最近的观测表明,该地区正在经历快速变化,包括变暖、冰架解体、冰盖变薄和退缩。通过研究南极西部和南极半岛冰盖附近的海洋沉积物,需要在更长的地质背景下考虑这些最近的变化。为此,我们提交了一份IODP提案,目前正在等待调度,以在位于别林豪森海(太平洋)的沉积物漂流上钻探一系列地点。由于缺乏用于同位素分析的有孔虫碳酸盐,不精确的年代控制阻碍了对南大洋沉积物岩心的古海洋学解释。为了准备预期的IODP考察,我们提出了一项“概念验证”研究,将主要的古海洋学和地层学方法应用于IODP将恢复的长序列研究中。我们将研究在提议的IODP站点之一(Pen-1)采集的活塞芯PC466,它是由英国南极考察队詹姆斯·克拉克·罗斯号(RRS James Clark Ross)在Bellinghausen海(64S, 69W)大陆隆起沉积物漂移处水深2400m处回收的。这个10.5米的短沉积记录跨越了末次冰期(~7万年),具有高沉积速率,在元素组成(XRF)和磁化率方面表现出明显的千年尺度变化。我们对核心PC-466的目标有三个方面。1)建立一个精确的年龄模型,可以用于与两个半球其他海洋沉积物岩心和极地冰芯的地层对比。2)利用漂流碎屑研究冰盖的前进和后退。3)重建地表水条件(温度、盐度、碳酸盐离子浓度和海冰)。如果我们成功地证明将传统的地层学和古海洋学工具应用于PC-466岩芯的末次冰期(古气候学家和古海洋学家最了解的一个时期)是可能的,那么我们就可以有理由相信,这些方法将适用于提案732所设想的数千米的记录,覆盖过去的几百万年。
项目成果
期刊论文数量(1)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Palaeoenvironmental records from the West Antarctic Peninsula drift sediments over the last 75 ka
过去 75 ka 西南极半岛漂移沉积物的古环境记录
- DOI:10.1144/sp381.12
- 发表时间:2013
- 期刊:
- 影响因子:0
- 作者:Vautravers M
- 通讯作者:Vautravers M
{{
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 }}
David Hodell其他文献
Drought and the Maya
干旱与玛雅人
- DOI:
10.1038/479044a - 发表时间:
2011-11-02 - 期刊:
- 影响因子:48.500
- 作者:
James Aimers;David Hodell - 通讯作者:
David Hodell
Millennial hydrological variability in the continental northern Neotropics during MIS3-2 (59-15 cal ka BP) inferred from sediments of Lake Petén Itzá, Guatemala
根据危地马拉佩滕伊察湖沉积物推断 MIS3-2(59-15 cal ka BP)期间大陆北部新热带地区的千年水文变化
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
Rodrigo Martínez;M. Abstein;Frederik Schenk;David Hodell;P. Hoelzmann;Mark Brenner;Steffen Kutterolf;Sergio Cohuo;L. Macario;M. Stockhecke;J. Curtis;F. Anselmetti;D. Arizteguí;T. Guilderson;Alex Correa;Thorsten Bauersachs;Liseth Pérez;A. Schwalb - 通讯作者:
A. Schwalb
David Hodell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('David Hodell', 18)}}的其他基金
Participation in IODP Expedition 397 (Iberian Paleoclimate)
参加IODP第397次探险(伊比利亚古气候)
- 批准号:
NE/X002101/1 - 财政年份:2022
- 资助金额:
$ 6.44万 - 项目类别:
Research Grant
Measuring triple oxygen (16O, 17O and 18O) and carbon (12C, 13C) isotopes in small samples of carbon dioxide by laser spectroscopy
通过激光光谱法测量少量二氧化碳样品中的三氧(16O、17O 和 18O)和碳(12C、13C)同位素
- 批准号:
EP/S030417/1 - 财政年份:2019
- 资助金额:
$ 6.44万 - 项目类别:
Research Grant
Neogene West Pacific tectonic influence on global climate via the Kuroshio Current
新近纪西太平洋构造通过黑潮对全球气候的影响
- 批准号:
NE/M005178/1 - 财政年份:2014
- 资助金额:
$ 6.44万 - 项目类别:
Research Grant
A tandem Mg/Ca-clumped isotope approach for palaeotemperature estimation of past climate
用于过去气候古温度估计的串联镁/钙同位素方法
- 批准号:
NE/M003752/1 - 财政年份:2014
- 资助金额:
$ 6.44万 - 项目类别:
Research Grant
IODP Survey of the "Shackleton sites" on the Southwest Iberian Margin
IODP 对西南伊比利亚边缘“沙克尔顿遗址”的调查
- 批准号:
NE/J00653X/1 - 财政年份:2013
- 资助金额:
$ 6.44万 - 项目类别:
Research Grant
A reference time scale for the study of Pleistocene orbital and millennial-scale climate variability: IODP Site U1385 ("Shackleton site")
研究更新世轨道和千年尺度气候变化的参考时间尺度:IODP Site U1385(“Shackleton site”)
- 批准号:
NE/K005804/1 - 财政年份:2013
- 资助金额:
$ 6.44万 - 项目类别:
Research Grant
Depositional patterns and records in sediment drifts off the Antarctic Peninsula and West Antarctica
南极半岛和南极洲西部沉积物的沉积模式和记录
- 批准号:
NE/J006513/1 - 财政年份:2013
- 资助金额:
$ 6.44万 - 项目类别:
Research Grant
Analytical development of the use of the isotopic composition of gypsum hydration water as a paleoclimate tool
石膏水合水同位素组成作为古气候工具的分析开发
- 批准号:
NE/I016716/1 - 财政年份:2011
- 资助金额:
$ 6.44万 - 项目类别:
Research Grant
Participation in IODP Expedition 339
参加IODP第339次远征
- 批准号:
NE/J017922/1 - 财政年份:2011
- 资助金额:
$ 6.44万 - 项目类别:
Research Grant
Instantaneous and inverse coupling between the South and North Atlantic during the last glacial period
末次冰期南大西洋和北大西洋之间的瞬时耦合和逆耦合
- 批准号:
NE/G006105/2 - 财政年份:2010
- 资助金额:
$ 6.44万 - 项目类别:
Research Grant
相似海外基金
Collaborative Research: Conference: Stratigraphic Paleobiology Field Conference
合作研究:会议:地层古生物学现场会议
- 批准号:
2321174 - 财政年份:2024
- 资助金额:
$ 6.44万 - 项目类别:
Standard Grant
Collaborative Research: Conference: Stratigraphic Paleobiology Field Conference
合作研究:会议:地层古生物学现场会议
- 批准号:
2321173 - 财政年份:2024
- 资助金额:
$ 6.44万 - 项目类别:
Standard Grant
Collaborative Research: Elements: Linking geochemical proxy records to crustal stratigraphic context via community-interactive cyberinfrastructure
合作研究:要素:通过社区交互式网络基础设施将地球化学代理记录与地壳地层背景联系起来
- 批准号:
2311092 - 财政年份:2023
- 资助金额:
$ 6.44万 - 项目类别:
Standard Grant
Collaborative Research: Elements: Linking geochemical proxy records to crustal stratigraphic context via community-interactive cyberinfrastructure
合作研究:要素:通过社区交互式网络基础设施将地球化学代理记录与地壳地层背景联系起来
- 批准号:
2311091 - 财政年份:2023
- 资助金额:
$ 6.44万 - 项目类别:
Standard Grant
Doctoral Dissertation Research: Stratigraphic records of microplastic pollution in coastal and wetland sediments
博士论文研究:沿海和湿地沉积物中微塑料污染的地层记录
- 批准号:
2243590 - 财政年份:2023
- 资助金额:
$ 6.44万 - 项目类别:
Standard Grant
Data-driven stratigraphic correlation system for drilling cores
数据驱动的岩心地层关联系统
- 批准号:
22K18742 - 财政年份:2022
- 资助金额:
$ 6.44万 - 项目类别:
Grant-in-Aid for Challenging Research (Exploratory)
Development of an automatic drawing scheme for stratigraphic column applicable to Mars
适用于火星的地层柱自动绘制方案开发
- 批准号:
22K14082 - 财政年份:2022
- 资助金额:
$ 6.44万 - 项目类别:
Grant-in-Aid for Early-Career Scientists
Metallogenetic, structural, metamorphic, stratigraphic and geochronological investigations on gold mineralization styles at the Great Bear deposit, Red Lake greenstone belt, ON
安大略省红湖绿岩带大熊矿床金矿化类型的成矿、结构、变质、地层和年代学研究
- 批准号:
576865-2022 - 财政年份:2022
- 资助金额:
$ 6.44万 - 项目类别:
Alliance Grants
Lower Paleozoic stratigraphic architecture of the Cornwallis District and associated areas, Canadian high Arctic
加拿大高北极地区康沃利斯地区及相关地区的下古生代地层结构
- 批准号:
RGPIN-2016-06596 - 财政年份:2022
- 资助金额:
$ 6.44万 - 项目类别:
Discovery Grants Program - Individual
Enhancing SPT data by reducing uncertainty in energy corrections and leveraging input energy for stratigraphic interpretation
通过减少能量修正的不确定性并利用输入能量进行地层解释来增强 SPT 数据
- 批准号:
571862-2021 - 财政年份:2022
- 资助金额:
$ 6.44万 - 项目类别:
Alliance Grants