Rock Magnetic Properties and Paleomagnetism of Upper CrustalSections of the East Pacific Rise at Hess Deep

虽然线性磁异常的一般概念 由洋脊顶部的海底扩张过程产生， 在这一点上，《易经》的起源是一个很好的解释。 海脊仍然不确定。ALVIN期间获得的样品 赫斯深海的潜水包括一系列不同的 拉斑玄武岩喷出物、岩脉和辉长岩代表了一个剖面 通过辉长岩地壳上层，700米的席状岩脉， 约300米的地壳枕状熔岩序列。目的是 获取一整套岩石磁性测量数据， 和不同成分的细粒岩石， 不同层次的上层海洋地壳，并整合这些 与岩石的结晶和蚀变历史， 以及磁性矿物的组成。

Although the general concept of linear magnetic anomalies generated by seafloor spreading processes at the ridge crest is well established, the source of the magnetization within the ocean crest remains uncertain. Samples obtained during ALVIN dives in the Hess Deep comprise a range of differentiated tholeiitic extrusives, dikes and gabbros that represent a section through the upper gabbroic crustal layer, 700 m of sheeted dikes, and about 300 m of crustal pillow.lava sequence. The intention is to acquire a full suite of rock magnetic measurements on coarse and fine.grained rocks of different compositions, representing different levels of the upper ocean crust, and integrate these with the crystallization and alteration histories of the rocks, as well as the compositions of magnetic minerals.