THE LOW BOUNDARY AND SUBDIVISION OF HOLONCE STRATA IN THE SOUTHERN UPLIFTED AREA OF SHANDONG PROVINCE
山东胶南隆起区全新世的下限与地层划分

In the southern uplifted area of Shandong Province, a layer of swamp deposits; withthickness of 0.3-0.5 m, may be considered to be a regional indicator for drawing stra-tigraphic boundary between-the Holonce and Pleistocence. The layer O distributed com-monly in depressions and river valleys, and is no much changed from place to place in itslithologic characteristic and thickness.