太古宙—元古宙界线研究现状

Current Situation in Study on the Archean-Proterozoic Boundary

根据大量资料 ,分析了近年来对太古宙—元古宙界线 (A/P)及其附近的研究成果 ,并着重论述了有关构造 -岩浆事件的研究及其意义 ,结合我国华北A/P界线的相关问题的研究概况 ,认为在五台山和太行山等地的变质岩区选择典型剖面 ,对太古宙基底的变基性岩体进行构造背景、精确同位素年代学以及盖层的沉积特征等多学科综合研究 ,是今后深入探讨这一领域的关键 ,其研究成果对明确我国A/P界线标志将提供重要依据。

Based on a large amount of data, we analyzed the results of recent studies on the Archean Proterozoic boundary (A/P boundary), related tectono magmatic events and discussed the significances of these studies. Considering the current situation of study related to the A/P boundary in north China, we believe it is necessary to conduct a synthetic investigation on the tectonic setting, geochronology and sedimentary features in the metamorphic regions of the Wutai Mountain and Taihang Mountain. A multidisciplinary study in the future using data from typical sections in these regions will provide important constrains for defining the A/P boundary in China.