metasomatic deposit

The uranium mineralization of soda metasomatite type developed well in Longshou Mountain.

龙首山钠交代岩型①铀矿化十分发育。

Through intensive studies and surveys on the geology of the Yanglin'ao Tungsten Deposit(YTD),and from such factors as the source of ore-forming material and mineralized process,the author made systematical analyses on the deposit genesis and concluded that YTD is a postmagmatic hyper-mesothermal filled metasomatic deposit.

结果认为,该矿床属岩浆期后高—中温热液充填-交代型钨矿床,并根据矿床成因建立了相应的成矿模式。

There are two opinions,alkali metasomatism and skarnization on the Han-xing iron ore formation in China.

邯邢式铁矿为我国一重要铁矿类型,对于邯邢式铁矿的成因存在两种看法,即碱交代成因观点和矽卡岩成因观点。

The intensive ductile shearing deformation and complicated alkali metasomatism are well developed in the Shut-Quan-Gou alkaline complex.

在印支－燕山期，冀西北水泉沟碱性杂岩体角闪二长岩遭受了强烈的韧性剪切变形和复杂的碱交代作用，逐步演化出角闪二长糜棱岩类→碱交代正长岩类→钾长花岗岩类，以及东坪、黄土梁、小营盘等几十处石英脉钾—质蚀变岩型金矿床，形成独特的含金碱性杂岩体，揭示了冀西北崇礼—赤城含金剪切带重要的碱交代成岩成矿机制。

The evaluation of Ag and Pb has important significance for researching contact metasomatism silver.

区内地质构造复杂,岩浆活动频繁,变质作用强烈,区域Pb、Ag化探异常分布集中,铁、铜、铅、锌矿产分布密集,特别是鄂拉山组陆相火山岩系是青海省唯一发现含独立银矿的地层,因此评价研究本区出现的高、大、全Ag、Pb异常特征及其成矿规律,对本区寻找接触交代型银多金属矿具有十分重要的意义。