Abstract top ↑
In this volume we present the evaluation of data from physical oceanography; high-resolution seismic stratigraphy; underwater television and sidescan surveys; biostratigraphy based on nannofossils, foraminifern, fish teeth and u hale bones; K-Ar dating of glauconite; sedimentology and geochemistry. There are also economicoriented studies on the phosphorite reserves. soil-mechanic implications for mining, and the benthic fauna, as well as a synthesis on the genesis. diagenesis and dispersal of the phosphorites.
The results of the SONNE-17 cruise provide the first comprehensive evaluation of the Chatham Rise phosphorite deposits. Based on this survey' end a previous VALDIVIA cruise (1978), German and New Zealand companies plan to continue the present prospection phase toward a mining test.