实际资料分析表明,同一级河谷的砂矿,当砂矿原生源的侵蚀断面相近及成矿后的大地构造-地貌和古地理条件相同时,在不同类型构造中其主要参数是完全不同的。这些参数相互间明显相关。根据结构的特点及大地构造的发育,可以划分出四种具有相近参数的砂金区成矿类型:
Ⅰ.冒地槽发育的褶皱区;
Ⅱ.构造岩浆活化带(结晶地质,可能还有台背斜和残留地块);
Ⅲ.优地槽发育的褶皱区;
Ⅳ.火山带。
Analysis of real data show that the same level Valley placer. When the placer primary source of erosion profile similar and metallogenic tectonic geomorphy and paleogeographic conditions are the same, in different types of structure in the main parameters is completely different. These parameters are significantly correlated with each other. According to the characteristics and tectonic structure of the development can be divided into four types of placer gold metallogenic types of similar parameters:
Ⅰ.冒地槽发育的褶皱区;
I take the development of geosyncline fold zone;
Ⅱ.构造岩浆活化带(结晶地质,可能还有台背斜和残留地块);
II. Tectonic magmatic activation zone (crystalline geology, possibly with a block of an and a residual block);
Ⅲ.优地槽发育的褶皱区;
3. Eugeosyncline fold region development;
Ⅳ.火山带。
Volcanic belt.
