The past and present trace metal budget of the Black Sea - A comparison of the Holocene and Eemian marine ingression

黑海过去和现在的微量金属预算——全新世和埃米亚海洋入侵的比较

• 批准号: 145942470
• 负责人: Professor Dr. Hans-Jürgen Brumsack
• 金额: --
• 依托单位: Institut für Chemie und Biologie des Meeres (ICBM)
• 依托单位国家: 德国
• 项目类别: Infrastructure Priority Programmes
• 财政年份: 2009
• 资助国家: 德国
• 起止时间: 2008-12-31 至 2012-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/145942470?language=en
• 关键词: past; present; trace; metal; budget

The goal of this project is to reconstruct the climatic and paleoenvironmental history of the yet unstudied Eemian sapropel in the Black Sea, which was recovered during DSDP Leg 42B Site 379A and Meteor cruise M72/5. We aim to improve the knowledge about the paleoenvironmental development of the Black Sea by comparing the Eemian with the recent (Holocene) sapropel using geochemical proxies at high resolution in a multidisciplinary approach. The main objectives we want to achieve with this proposal are a) the creation of a highresolution chemostratigraphic classification of the so far unstudied Eemian sapropel, b) reconstruction of the development of the chemo-/pycnocline, c) investigation of the transition from the limnic to the marine stage (and vice versa) in the Black Sea, d) reconstruction of paleoproductivity and d) an isotopic mass balance of trace metal fluxes from the water column to the sediment through time. To achieve these goals we will determine inorganic geochemical parameters (major and minor elements), stable metal isotopes (Fe, Mo, and U), and organic biomarkers (isorenieratene) at high resolution in key sections. The results of our study will also be used to compare the Black Sea sapropels with the Eemian “S5” sapropel from the Mediterranean Sea in an attempt to work out similarities and differences of the two settings.

该项目的目的是重建尚未研究的eemian sapropel在黑海中的气候和古环境历史，该历史在DSDP Leg 42b Site 379A和Meteor Cruise Cruise M72/5期间被恢复。我们旨在通过使用地分辨率高分辨率在多学科方法中比较新世（全新世）的腐烂，以将eemian与最近的（全新世）腐烂的肉类进行比较，以提高对黑海的古环境发展的知识。我们要通过该提案实现的主要目标是a）建立高分辨率的化学化学分类分类，以迄今未研究的Eemian Sapropel，b）重建化学 - /pycnocline的发展，C）对从属于海洋阶段的转移（及其远处）的转移（and and of vicie Versa and Black Sea and dy），D）随着时间的推移，痕量金属通量从水柱到沉积物的同位素质量平衡。为了实现这些目标，我们将确定无机的地球化学参数（主要和次要元素），稳定的金属同位素（Fe，Mo和U）以及在关键部分高分辨率的有机生物标志物（同层）。我们的研究结果还将用于将黑海洋腐烂与地中海中的eemian“ S5” sapropel进行比较，以试图解决这两种情况的相似性和差异。