俄罗斯东北部鄂霍次克--楚科奇火山岩带汞矿床与我国鸡血石矿床的对比

俄罗斯东北部鄂霍次克—楚科奇火山岩带中的某些汞矿床,其成矿地质背景及矿床地质特征与我国昌化、巴林鸡血石矿床有一定的相似性和可比性,主要表现在区域构造背景、火山岩含矿围岩、含矿构造和矿体形态、围岩蚀变矿区次火山岩体特征和矿床成因等方面。因此这些汞矿床的部分汞矿石作为珍贵的鸡血石资源利用可能具有一定的前景,进而可能大大拓展鸡血石的找矿前景。

Comparision between Bloodstone Deposits in China and Mercury Deposits in Okhotsk-Chukchi Volcanic Rock Belt, Northeastern Russia

Bloodstone is an unique Chinese precious stamp stone, consisting of "blood" (fine-grained cinnabar aggregate) and "ground" (fine-grained dickite aggregate). Up to now, the bloodstone deposits were discovered only in Changhua of Zhejiang Province and Balin of Inner Mongolia, which are situated in Mesozoic-Cenozoic circum-Pacific active continental margin of China. Comparative studies show that some mercury deposits in Okhotsk-Chukchi volcanic rock belt of northeastern Russia possess many similarities with Chinese bloodstone deposits in many aspects, including regional tectonic setting, volcanic host rocks, ore-controlling structure and ore-body morphological feature, alteration of host rocks, sub-volcanic rocks and genesis of the deposits. Some mercury ores from the mercury deposits may be used as bloodstone gems in the near future.