Petrology and diagenesis of sandstones at DSDP Hole 58-445@en

The sandstone succession in the lower 240 meters of DSDP Site 445, on the Daito Ridge, provided an opportunity to evaluate the effect of burial diagenesis of sandstones in a deep hole in a tectonic environment (remnant arc) characterized by a history of high heat flow. This report provides preliminary data concerning the petrology and diagenesis of these sandstones and records diagenetic changes which have occurred with increasing depth of burial. […]位于大东岭（Daito Ridge）的深海钻探计划（Deep Sea Drilling Project, DSDP）445站位下部240米的砂岩序列，为探究构造环境（残余弧）下深部钻孔砂岩的埋藏成岩作用效应提供了研究契机，该构造环境以长期高热流演化历史为特征。本报告提供了这批砂岩的岩石学与成岩作用相关的初步数据，并记录了随埋藏深度增加而发生的成岩变化。[…]