ROW: An Integrated Petrographic, Chemical and Isotopic Study of the Diagenesis of Carbonate Sediments in the Deep Sea

本项目涉及深海钻探项目回收的岩心中碳酸盐沉积物成岩作用的性质和机制的研究。目的是利用岩石学、化学和同位素技术来确定成岩作用对DSDP和ODP钻井岩心中有孔虫同位素特征的改变程度。这些同位素特征被用来重建该地点沉积时的古环境条件，也可能包括随后成岩作用的叠印。对这种叠印样品的识别将使古海洋学家能够拒绝那些不保留环境信号的样品，这样在岩心中记录的古气候重建就不会出错。

This project involves an investigation of the nature and mechanisms of the diagenesis of carbonate sediment in cores recovered by the Deep Sea Drilling Project. The goal is to use petrographic, chemical, and isotopic techniques to determine the degree of modification by diagenesis on the isotopic signature of foraminifera from DSDP and ODP drill cores. Those isotopic signatures are used to reconstruct the paleoenvironmental conditions at the time of deposition at the site and may also include an overprint from the subsequent diagenesis. Recognition of samples with this overprint will allow paleoceanographers to reject samples which do not retain an environmental signal so that reconstructions of paleoclimates recorded in drill cores will not be in error.