赣东北-皖南中元古代低级变质地层区的填图方法--构造-岩块-地层法

赣东北—皖南地区主体位于杨子板块与华夏(南)板坎接合部位，多期的构造成撞造山作用，使分布于其问的中元古代地居发生了不同程度的“非史密斯”化，单一的、传统的史密斯地居工作方法已不能适应该区的地质填图工作。通过对造山带等理论的具体运用，结合近年来在该区的工作实践，在构造—地层法基础上提出了造山带低级变质地居区先划分构造—岩坎，再分块建立地层层序的地质填图方法：构造—岩块—地层法。

Mapping of the low-grade Terrains in the Northeast of Jiangxi-the South of Anhui--Tectono-rock Block-strata Method

The Northeast of Jiangxi-the South of Anhui regions are locateded in the contact belt between the Yangtze Plate and the Cathaysian(Huanan)Plate, Mesoproterozoic strata which distributed in the conjunct of belt were reworked to different grades non-smith stratigraphy in the processes of collision orogenesis. Therefore, the method of simple and traditional Smith stratigraphy can't adjust to geological mapping in the area. With use the theory of orogenic belt and the actually working in recent year, this paper puts forward a new mapping of tectono-rock block-strata method on the basis of the tectono-strata method, that is, low-grade metamorphic strata in orogenic belt is divided into tectono-rock block, and stratigraphic sequences are established in different rock block.