LITHOFACIES PALEOGEOGRAPHY OF NANHUA PERIOD IN LIAONING REGION

The strata of Nanhua Period are mainly distributed in the Liaodong Peninsula and scattered in Tieling area in Northern Liaoning Province. The Nanhau sedimentary period, which started with terrigenous clastic rocks as bottom, until the forming of stable carbonate rock platform, composed a complete progression-regression cycle. With study on the lithofacies paleogeographic characteristics of the Nanhua Period, according to its lithologic assemblage, sedimentary structure and facies fossils, six sedimentary facies are assigned, i.e. littoral facies, neritic shelf facies, open platform facies, restricted platform facies, fluvial facies and alluvial fan facies.