Figure 4. Downhole profile of 22 trace elements (4A to 4V) for the acetic acid soluble fraction (thin line) and the acid-insoluble residue fraction (thick line) and for Site 997. The former represents principally detrital siliciclastic materials, whereas the acid-soluble fraction comprises the calcitic-dolomitic carbonates. Also shown are geochemical intervals based on the trace element geochemistry given in this report.