Figure 4 | Table of Contents

Figure 3. Summary of pre-Leg 192 age data for Ontong Java Plateau basement basalt, later lava flows and intrusions on Malaita and San Cristobal, and ash or glass-shard-rich layers within the sedimentary section at Sites 288 and 289 (Tejada et al., 2000). Ages derived from biostratigraphy are shown with error bars; the others are ⁴⁰Ar-³⁹Ar plateau or, for the Malaitan alnöites, U-Pb zircon ages.