Pollen Studies Sub-Contract for Regional Climatic Change, Meltwaters, and Lake Levels of the Laurentian Great Lakes

小行星9520269 该项目旨在通过将湖泊波动、融水和微型动物群和植物群的古湖沼记录联系起来，在区域气候和湖泊历史之间建立直接联系。 它将把古气候记录，特别是年变率记录延伸到新德拉亚斯。 介形虫阀的氧同位素测量和动物区系研究将建立一个时间框架。 AMS日期将提供绝对的年表。 岩心沉积物的合成地震图将把它们与地震记录联系起来。 物理性质测量和花粉研究将把湖泊水位的历史与气候历史联系起来。 计划于1995年中在密歇根湖和休伦湖进行取芯、侧扫和地震剖面测定航行。 ***

9520269 Shane The project aims at establishing a direct tie between regional climatic and lake histories by linking the paleolimnological record of the lake fluctuations, melt water and microfauna and flora. It will extend the paleoclimatic record, especially the annual variability record back to Younger Drayas. Oxygen isotope measurements on ostracode valves, and faunal studies will establish a temporal framework. AMS dates will provide absolute chronology. Synthetic seismograms of core sediments will link them to seismic records. Physical properties measurements and pollen studies will tie the history of lake levels to climatic history. A coring, side-scan and seismic profiling cruise is planned in mid 1995 in Lakes Michigan and Huron. ***