Collaborative Research: An Analysis of Three Records of theCobb Mountain Subchronozone

这是克莱门特(德克萨斯A&A；M)和马丁森(哥伦比亚)的合作项目。对大西洋西北部ODP646和647站沉积物的初步古地磁研究结果表明，这些高沉积速率剖面包含了科布山次同步臭氧的详细记录。克莱门特公司对609B孔沉积物的连续采样已经对这一短的、正常的极性间隔产生了非常详细的记录。PIS将对646号和647号孔的沉积物进行更详细的采样，并对这些样品进行彻底的古地磁和岩石磁学研究，试图复制从609B孔获得的记录。它们将使用马丁森的客观、非线性方法将每个站点的合成矢量时间序列分量彼此定量关联。这将建立一个统计基础，以评估记录中存在的相似程度。这些信息将被用来检查作为高分辨率野外记录仪的深海沉积物的保真度，以及记录中的差异可以在多大程度上被解释为与场地有关的野外行为。

This is a collaborative project between Clement (Texas A&M) and Martinson (Columbia). Preliminary results of paleomagnetic studies of sediments from ODP Sites 646 and 647 in the northwest Atlantic indicate that these high sedimentation rate sections contain detailed records of the Cobb Mountain Subchronozone. Continuous sampling by Clement of the sediment from DSDP Hole 609B has already yielded a very detailed record of this short, normal polarity interval. The PIs will sample the sediment from Holes 646 and 647 in more detail and conduct a thorough paleomagnetic and rock magnetic study of these samples in an attempt to replicate the record obtained from Hole 609B. They will quantitatively correlate the resultant vector time series components from each site to one another using the objective, nonlinear method of Martinson. This will establish a statistical foundation from which to evaluate the degree to which similarities exist in the records. This information will be used to examine the fidelity of deep-sea sediments as high resolution field recorders and the extent to which the differences in the records may be explained as site dependent field behavior.