摘要
对广西丹池地区泥盆系浊积岩和硅质岩的沉积特征、岩石化学成分和形成机制的研究表明,它们是在受同生断裂控制的深水拗陷盆地中,由浊流和热水沉积而形成的沉积岩石。相同类型岩石的分布特征表现南盘江晚古生代沉积盆地呈浅海“台地”和深海“槽沟”相间排列的构造格局,其形成和演化与滇黔桂地体和云开地体的碰撞拼贴造山作用以及造山后地壳的蠕散拉伸作用有关。
The depositional characteristics chemical compositions and froming mechanism of turbidites and silicalites of Devonian system is Danchi area are studied in this paper The results show that they are sedimentary rocks formed by turbidinte and hot -water deposi-tion of those rock show that the inter-arrangements of shallow-sea platform and deep-sea trenches consist of tectonic pattern of nanpanjian basin in devonial period and reflect the special characteristics of tectonic evolution in nanpanji and its adjactent region the de-velopment of the coures would be closely related with maftching oroenesis of yunnan-guizhou guangxi terrane and yunkai terrane and creep extension of crust after mountain-building
出处
《上海国土资源》
1994年第3期11-19,共9页
Shanghai Land & Resources
