徂徕山—新甫山地区太古宙杂岩体地质地球化学特征及生成机制

GEOLOGICAL AND GEOCHEMICAL CHARACTERISTICS AND FORMATION MECHANISM OF THE ARCHAEAN COMPLEX ROCK BODIES IN THE CULAISHAN—XINFUSHAN AREA

摘要:

本文对徂徕山—新甫山地区太古宙杂岩体的地质、岩石、矿物、岩石化学、地球化学特征及形成时代进行了系统而全面的阐述。文中将该区太古宙杂岩归属于三个旋回和两个成因系列。该文探讨了区内岩体生成的构造机制,论述了构造迁移作用。该文还探讨了两个成因系列岩体的生成模式:超基性—中性岩的地幔源成因及酸性岩石的复杂成因。文中还提出了混合交代物质K,Na,Si的地幔来源,论述了混合质岩体形成的冲淡模式。

Abstract:

The formation time of the Archaean complex rock bodies around the Culaishan—Xinfushan area and their characteristics in terms of geology, petrology, mineralogy, petrochemistry and geochemistry are elaborated in a systematic and comprehensive way. The Archaean complex rock bodies are divided into two genetic series with three cycles. Herewith are discussed the tectonism by which the rock bodies were formed, the dilution model by which the migmatitic rocks were formed, the structural immigration and the genet...