PALYNOLOGICAL ASSEMBLAGES OF UPPER AND LOWER SHIHEZI FORMATIONS OF PERMIAN FROM WESTERN SHANDONG REGION AND THE BASAL BOUNDARY OF UPPER SHIHEZI FORMATION
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Abstract:
In order to resolve the regional stratigraphic correlation related to the Middle Permian and Late Permian, the authors studied the palynology of the Upper and Lower Shihezi formations of Permian in coal mines of western Shandong region. More than 100 samples were selected and macerated. Through systematic study, two palynological assemblages in this region have been established as follows:
