Abstract
Cherts and tuffaceous siltstones from the Bentong-Raub suture zone, Peninsular Malaysia, have yielded radiolarians indicating Late Devonian (Famennian) and Early Carboniferous (Tournaisian, late? Tournaisian and Viséan) ages. Cerium anomalies from these Devonian and Carboniferous cherts indicate deposition in an open ocean. This ocean is interpreted to be the Palaeo-Tethys ocean which existed between Sibumasu and East Malaya during at least the Devonian and Early Carboniferous. Radiolarians extracted from siliceous sediments of the Semanggol Formation of NW Peninsular Malaysia have indicated both Early Permian and Late Permian (Guadalupian) ages. This extends the age of the Semanggol Formation down to the Early Permian and confirms the presence of a deep-marine basin in what is now NW Peninsular Malaysia during the Permian.
Published Version
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