(Table 3) Metamorphism and alteration grades of samples from ODP Hole 118-735B@en

Metamorphism/alteration grades have been classified into three categories on the basis of the total percentage of secondary hydrous minerals (clay, chlorite, hornblende, amphibole, talc, epidote, tremolite, and actinolite): low grade includes 0% to 10% hydrous materials, and medium and high grades contain 10% to 25% and more than 25%, respectively.变质蚀变等级（Metamorphism/alteration grades）基于次生含水矿物（secondary hydrous minerals，包括黏土（clay）、绿泥石（chlorite）、角闪石（hornblende）、闪石（amphibole）、滑石（talc）、绿帘石（epidote）、透闪石（tremolite）以及阳起石（actinolite））的总占比被划分为三类：低等级的含水矿物占比为0%至10%，中等级与高等级分别对应10%至25%以及25%以上的占比。