鲁中南地区上前寒武系的划分和对比

DIVISION AND CORRELATION OF THE UPPER PRECAMBRIAN IN THE CENTRAL-SOUTH REGION OF SHANDONG

摘要:

本文所涉及的范围包括昌邑—大店断裂以西及昌乐—费县—枣庄一线以东,即北起昌乐、安丘,经沂水、莒县、沂南、临沂、苍山,南至苏、鲁交界的广大地区,其上前寒武系分布见图1。鲁中南地区上前寒武系的调查和研究工作,最早可追溯到本世纪初。1917—1920年谭锡畴、李捷等人在调查山东西部地质时,将长清馒头山片麻岩之上的“硅质灰岩”,以及临沂、蒙阴、潍县马司等地“硅质灰岩之下,兼有棕色页岩、砂岩,总厚数十公尺”

Abstract:

The newly established stratigraphic sequence of the late precambrian in the central-south region of Shandong(Province)is named as the Tumen Group. It is unconformably overlain on the Archaean Taishan Group, but disconformably underlain the Wushan formation of the lower Cambrian, and is composed of the Heishanguan formation, the Erqingshan form., the Tongjiazhuang form., the Fulaishan form., and the Shiwangzhuang form. (seven members in the five formations)stratigraphically upward. With a totol thickness of ...