94 Specimen and Field-Based Insights into Climate and Paleoecology

Monday, 28 October 2013
8:00 AM - 12:00 PM
Mile High Ballroom 1CD

MOLLUSCAN RESPONSE TO SLOWLY PLIO-PLEISTOCENE SUBSIDENCE IN THE BOBOTSARI LOW AND ITS IMPLICATION TO THE PETROLEUM SYSTEM

Paper number: 94-11
Program: Technical Sessions
Time: 10:30 AM – 10:45 AM

Authors

Abstract

Integrated study of stratigraphy, sedimentology and molluscan paleontology from several Late Quaternary molluscan locality type in west-central Jawa border (Indonesia), implies the possibility of younger existing source rocks than it was interpreted as Late Miocene age.

Paleodepositional environment analysis indicates that insitu marine molluscs observed continued untill Quaternary around Bobotsari Basin, where observed data from other areas (other basins) signed marine into terrestrial environment change during Plio-Pleistocene.

It is interpreted due to the influence of rapid subsidence in the Bobotsari Basin (where Bantardawa-Talanggudang Formation was deposited) in the late Neogene. This interpretation were also based on seismic analysis and age determination of planktonic foraminifers.