Understanding the Driving Factors of the Oceanic Anoxic Event 1A (Early Aptian) - The Continental and Neritic Perspective
了解海洋缺氧事件 1A(早期 Aptian)的驱动因素 - 大陆和浅海视角
基本信息
- 批准号:50152356
- 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:2007
- 资助国家:德国
- 起止时间:2006-12-31 至 2013-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Ocean-wide anoxic events (OAEs) represent intensively investigated anomalies in the global carbon-cycle. The study of OAE-coeval shallow water settings is now increasingly seen as an interesting complementary approach, but one that is not without problems either. Whereas platform drowning characterizes the Early Aptian of the northern Tethyan margin, out-of-balance facies and ongoing shoalwater sedimentation at the southern Tethyan margin (Oman) bears important information on potential causes of C-cycle perturbations. In the first two project years, fieldwork focussed on outcrops in the central Tethys (Croatia, Istria) and the northern Tethys (France, Haute Savoie). Based on this project and previous studies, a latitudinal change in Lower Aptian shoalwater facies is observed with OAE1a-coeval Lithocodium-Bacinelladominated facies in Oman and Istria and Lithocodium-Bacinella-poor facies and platform drowning in France. The transition zone between these two end-member facies types is poorly constrained both geographically and lithologically. For the third project year, we here propose to investigate uppermost Barremian and Lower Aptian section in western Portugal (Atlantic domain) that share attributes of both platform modes (i.e., Lithocodium-Bacinella-dominated facies followed by platform drowning. It is proposed that the Portuguese sections provide important information on latitudinal changes in Lower Aptian shallow-water sedimentation.
大洋缺氧事件是全球碳循环中的一种异常现象。对OAE同时代浅水环境的研究现在越来越被视为一种有趣的补充方法,但也不是没有问题。虽然平台淹没是北方特提斯边缘早阿普特阶的特征,但特提斯边缘南部(阿曼)的失衡相和正在进行的浅水沉积提供了有关C周期扰动潜在原因的重要信息。在项目的头两年,实地工作的重点是特提斯中部(克罗地亚,伊斯特拉)和北方特提斯(法国,上萨瓦省)的露头。根据该项目和以前的研究,观察到下阿普第阶浅水相的纬度变化,在阿曼和伊斯特拉的OAE 1a-同时代的Lithocodium-Bacinelladominated相和法国的Lithocodium-Bacinella-贫相和平台溺水。这两种端员相类型之间的过渡带在地理上和岩性上的约束都很差。对于第三个项目年,我们建议调查葡萄牙西部(大西洋域)最高的Barremian和Lower Aptian剖面,它们具有两种平台模式的属性(即,以Lithocodium-Bacinella为主的相,其次是台地淹没相。有人建议,葡萄牙的部分提供了重要的信息纬度变化下阿普第亚浅水沉积。
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)
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Professor Dr. Adrian Immenhauser其他文献
Professor Dr. Adrian Immenhauser的其他文献
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{{ truncateString('Professor Dr. Adrian Immenhauser', 18)}}的其他基金
Formation and diagenetic evolution of actualistic, aragonite-cemented seafloor carbonates
现实的文石胶结海底碳酸盐的形成和成岩演化
- 批准号:
435379576 - 财政年份:2019
- 资助金额:
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Research Grants
Assessing the significance of dolomitized limestone archives: Application and calibration of the Magnesium isotope proxy
评估白云石化石灰岩档案的重要性:镁同位素代理的应用和校准
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319222926 - 财政年份:2016
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-- - 项目类别:
Research Units
Exploring the archive data of low grade - high pressure metamorphic sedimentary successions
低品位-高压变质沉积层序档案资料探索
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270096603 - 财政年份:2015
- 资助金额:
-- - 项目类别:
Research Grants
Westernmost Tethyan/proto-Atlantic neritic archives of Early Aptian environmental change
最西端的特提斯/原大西洋浅海区早期阿普第期环境变化档案
- 批准号:
267244314 - 财政年份:2014
- 资助金额:
-- - 项目类别:
Research Grants
Formation and diagenetic alteration of marine, meteoric and biogenic radiaxial calcites
海洋、大气和生物径向方解石的形成和成岩蚀变
- 批准号:
218269259 - 财政年份:2013
- 资助金额:
-- - 项目类别:
Research Units
Analyse und Modellierung der Biomethanisierung von pflanzlicher Biomasse (BioMetModell)
植物生物质的生物甲烷化分析和建模 (BioMetModell)
- 批准号:
202567229 - 财政年份:2011
- 资助金额:
-- - 项目类别:
Research Grants
Establishing the Magnesium Isotope Signature of Dolomites
建立白云岩的镁同位素特征
- 批准号:
189689865 - 财政年份:2011
- 资助金额:
-- - 项目类别:
Research Grants
Geochemical Reconstruction of Lateral Changes in Cenomanian Epicontinental Shelf Water Masses, Northern Germany
德国北部塞诺曼阶陆缘陆架水体横向变化的地球化学重建
- 批准号:
56194565 - 财政年份:2007
- 资助金额:
-- - 项目类别:
Research Grants
Holocene speleothem-based climate record for the SW Mediterranean area (Middle Atlas; Morocco)
地中海西南地区(中阿特拉斯;摩洛哥)基于全新世洞穴的气候记录
- 批准号:
33340457 - 财政年份:2006
- 资助金额:
-- - 项目类别:
Research Grants
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