PALYNOSTRATIGRAPHY OFPERMIAN SUCCESSION IN THE PENCH VALLEY COALFIELD, SATPURABASIN,MADHYA PRADESH, INDIA

摘要

The coal-horizon Barakar Formation exposed in the Shivapuri opencast coal mine near Parasia town, Chhindwara district, Pench Valley Coalfield, Satpura Basin,is worked out for its spore-pollen content. Approximately 47.00 m thick Gondwana sediments comprising the carbonaceous shales, shales, claystones,siltstones, fine to medium-grained sandstones and coal seams, have shown levels of changing patterns in the spore-pollen groups in the Barakar Formation. Dominance of radial monosaccate pollen taxa (Parasaccites and Plicatipollenites) along with significant spore species in the lower part of the section within 16 m depth leads us to infer the strata of the Upper Talchir and Karharbari formations of Early Permian age in the coalfield. In the up-section (31m depth), an abundance of Striatopodocarpites, Indotriradites and Scheuringipollenites suggests occurrence of the Barakar Formation which is considered the late Early Permian in age. In the top section, an abundance of striate bisaccate pollen taxa (Crescentipollenites, Stria topodocarp ites and Faunipollenites) represents the Bijori Formation, which is equivalent to the Raniganj Formation of the Damodar Basin. According to the FADs of Arcuatipollenites spp., Klausipollenites schaubergeri and Playfordiaspora cancellosa observed between samples SPO 34 and 36, the end of Permian is suggested as these species mark the transition of the Permian level into the Lower Triassic.