中国白垩纪大陆成矿体系的初步研究及找矿前景浅析

中国白垩纪大陆成矿体系,是指在白垩纪时期发生于大陆环境(包括大陆边缘)的成矿作用及其成矿地质要素构成的整体。由分布在东北、古阴山-燕山、华北地台、古秦岭-大别、扬子地台和东南沿海等大型、超大型矿集区的12个主要矿床成矿系列,可大致构筑起中国白垩纪的大陆成矿体系。而西北和西南地区已知的白垩纪矿产资源尚少,找矿潜力很大。即使是东部地区,研究程度虽高,但只要开拓思路,深入研究,仍然可以取得找矿新突破,如到盆地区找金属矿床,到非金属矿集区找金属矿床,到“山下去找山上的金属矿床”等等。

Preliminary study on Cretaceous mineralization systems in China: Implications for future prospecting

Cretaceous mineralization systems in China is commonly recognized as having formed in a continental environment. A Paleo-Yinshan-Yanshan, Paleo-Qinling the area encompassed by the North China platform, the Dabieshan, the Yangtze platform and Southeast China contains Cretaceous continental rocks and associated mineralization. By contrast only a few deposits of Cretaceous age have been discovered in Northwest China and Southwest China, thereby suggesting a great potential for prospecting in these areas. In eastern China, important deposits have been discovered, but it is still possible to find new economic deposits, such as the Pengjiakuang and Fayunkuang gold deposits in Jiaodong-Laiyang Basin in Shandong Province and the Changkeng gold deposit in Guangdong Province. Therefore, we suggest to prospect for new metal deposits in and around basins.