MEDMESS: Quantifying Mediterranean environmental change during the Messinian Salinity Crisis

严重干旱时期导致极度缺水，最终导致盐碱化危机。MEDMESS将重建地中海系统水文预算在过去10 Ma期间标志着欧洲的一个环境事件的前奏、开始和演变期间的长期变化幅度和速度：梅西尼亚盐度危机(MSC)。在这一事件中，地中海与公海隔绝，造成了令人印象深刻的海平面波动(&gt；1000米)，生态系统遭到破坏，巨型(高达1000米)的蒸发物沉积。在这里，我建议应用基于生物标志物的有机地球化学来量化MSC期间地中海的环境变化，重点是平均气温(目标1)、地中海表面温度(目标2)和地中海水收支的变化(目标3)。总体而言，这些数据集有可能阐明海陆温度和区域水收支的差异。这一提议发展了一个基本上未经检验的新想法：结合陆地和海洋温度数据以及同时期的氢同位素记录，以了解区域降雨量和径流/蒸发模式。MEDMESS打算支持两栖ICDP-IODP钻探项目IMMAGE。拟议的MEDMESS项目将把重点放在地中海西部--与IMAGE ICDP钻井点的勘探区域重合的位置。Flecker博士和IMMAGE联盟的成员支持这一应用，并展望了未来的合作。MEDMESS将提供创新的替代数据，以定量了解大型内陆水体对区域气候的影响，重点关注进入和摆脱盐碱化危机过程中发生的极端水文变化。增加的知识随后可以扩展到过去不太敏感的环境以及地球上未来类似的地区。

Severe drought periods culminate in extreme water deficiency and ultimately salinity crises. MEDMESS will reconstruct the amplitude and rate of long-term change in the hydrological budget of the Mediterranean system during the prelude, inception and evolution of one of the environmental events marking Europe during the past 10 Ma: the Messinian Salinity Crisis (MSC). During this event the Mediterranean was cut off from the open ocean resulting in impressive sea level oscillations (>1000 m), destruction of ecosystems and deposition of giant (up to 1000 m) evaporites.Here, I propose to apply biomarker-based organic geochemistry to quantify environmental change in the Mediterranean during the MSC focusing on mean air temperature (Goal 1), Mediterranean Sea surface temperature (Goal 2) and changes in the Mediterranean water budget (Goal 3). Collectively, these data sets have the potential to elucidate differences in Land-Sea temperature and regional water budget. This proposal develops a largely untested and novel idea: Combining land and sea temperature data as well as coeval hydrogen isotope records to understand regional rainfall and runoff/evaporation patterns.MEDMESS intends to support IMMAGE, an amphibious ICDP-IODP drilling project. The proposed MEDMESS project will focus on the western Mediterranean - location coinciding with the prospected region for the IMMAGE ICDP drill sites. Dr. Flecker and members of IMMAGE consortium support this application and envision collaboration in the future.MEDMESS will deliver innovative proxy data for a quantitative understanding of the impact of large inland water bodies on regional climate with focus on extreme hydrological changes occurring on the way into and the way out of salinity crises. The added knowledge can subsequently be extended to less sensitive settings of the past as well as to future analogous regions on Earth.