The Use of Statistical Methods for Studying the Chemical Composition of Oceanic Sediments: Evidence from Deep-Water Upper Pleistocene桯olocene Sediments in the Gakkel Ridge, Part II

摘要

This paper is a continuation of the work that was published in Geochemistry International in 2010 [1]. Based on lithological and trace-element study of sediments, a hypothetical lithostratigraphic model was proposed and lithostratigraphic horizons were identified. In this paper, we carried out statistical treatment of chemical data (on 28 elements) on the Upper Pleistocene桯olocene sediments of the Gakkel Ridge (core PS 70/306-3). Cluster analysis coupled with lithostratigraphic data was used to distinguish individual groups (clusters) of the core beds, while factor analysis allowed deciphering the main stages in the sedimentation history.