OCCURRENCE OF TRIASSIC FORAMINIFERS IN CA RBONATE DEPOSITS FROM THE NINH-BINH AREA (NORTH VIETNAM)

Benthic foraminifers have been discovered in the limestones of the Don g Giao Formation, Ninh Binh area (Song Da Terrane, North Vietnam), dep osited on a wide, subsident, shallow water carbonate platform. The for aminifers are of lower Triassic (?) to Anisian age; they show affiniti es to coeval microfaunas from North Malaysia and the South China Block suggesting connections during the Triassic between the different cont inental blocks of the Indochina Peninsula. (C) Academie des sciences/E lsevier, Paris.