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本文主要根据以往区测资料,结合野外观察所获资料,分析研究陕西省境内渭河以南西安、西乡一线以东地区内的震旦纪至早寒武世古地理及有关沉积矿产形成环境,试图探讨有关矿产的分布规律,进行成矿预测,有错之处,敬请批评。一、地层分区及对比秦岭褶皱带中的震旦系至下寒武统地层,分属扬子陆台北缘陆缘区与华北陆台南缘区两个系统(见表一),分别称为南秦岭和北秦岭,其界线大致在柞水、山阳一线。华北陆
In this paper, based on previous regional data and field observations, this paper analyzes and analyzes the paleogeography of the Sinian to the Early Cambrian within the area to the south of the Weihe River in Shaanxi Province and the area to the east of the Xixiang Line, Discuss the distribution of minerals, mineral prediction, wrong place, please criticize. 1. Stratigraphic zoning and comparison The Sinian to the Lower Cambrian strata in the Qinling fold belt belong to two systems, the continental margin of the northern margin of the Yangtze Rift and the southern margin of the continental margin of the North China (Table 1), which are respectively referred to as the South Qinling And North Qinling, its boundaries roughly in Zhashui, Sanyo line. North China land