Early Cenomanian to Pliocene deep-marine sediments from North Malaita, Solomon Islands

Abstract

Carbonates with volcanic lithic components deposited in a deep-water environment are found on both flanks of the Tomba Anticline, northwest Malaita. Pelagic Foraminifera were used for age determinations, indicating an upper Albian age for the oldest rocks of the Kwai River sections. Senonian, Campanian/Maestrichtian, Paleocene, Eocene, middle and upper Miocene, and Pliocene were also documented by pelagic Foraminifera. It is inferred that there has been uninterrupted deep-water sedimentation from the Albian to the Pliocene in this area.