Chronology of Submerged Speleothems from the Blue Hole, Belize: Implications for Sea Level and Tropical Climate Change Through Time

新墨西哥州耶曼大学ATM-9731138 Asmerom标题：SGER：伯利兹蓝洞形成的水下洞穴年表：随着时间的推移对海平面和热带气候变化的影响SGER奖支持对从伯利兹灯塔礁“蓝洞”中发现的现存洞穴(碳酸盐洞穴沉积)样本进行分析的初步研究。这项研究的目的是获得高分辨率的U系列年代学和稳定的同位素记录，以便重建准确的海平面变化年代学和可能的热带古气候同位素替代记录。这项工作将基于热电离质谱(TIMS)的U系列分析。这些稀有样品为TIMS方法的演示提供了机会，可能会极大地提高我们在碳酸盐剖面中重建精细计时系列的能力。

Abstract ATM-9731138 Asmerom, Yemane University of New Mexico Title: SGER: Chronology of Submerged Speleothems form the Blue Hole Belize: Implications for Sea Level and Tropical Climate Change Through Time The SGER award supports a pilot study on the analysis of extant speleothem (carbonate cave deposits) samples recovered from the "Blue Hole," Lighthouse Reef, Belize. The study's objective is to obtain a high resolution U-series chronology and stable isotope record in order to reconstruct an accurate chronology of sea level change and possible isotopic proxy record of tropical paleoclimate. The work will be based on U-series analysis by thermal ionization mass spectrometry (TIMS). These rare samples provide an opportunity for the demonstration of the TIMS methodology may greatly improve our ability to reconstruct fine-scale chronometric series in carbonate sections.