火山沉积 meaning in English
volcanic deposit
Examples
- 5 . yulong - mangkang and leiwuqi - zuogong metallogenic belts are formed in collision - orogeny circumstance , and the ore - forming process is related with lava - thermal fluid tightly
张性火山岛弧环境下形成了德格?乡城成矿带，成矿与火山沉积作用密切相关。 - Based on genetic analysis , the volcanic rocks in this area are divided into four lithofacies : explosive , overflow , intrusive and volcanic sedimentation facies , in which the explosive and overflow are favorable facies for reservoir development
根据成因分析，将该区火山岩划分为四种岩相类型：爆发相、溢流相、侵出相及火山沉积相，其中爆发相和溢流相为储层发育的有利相带。 - The genesis of gold deposits is complex in this district , the type of quart - vein plus etch rock belongs to hydro thermally superimposed complex mineralization . the type of porphyry and scraping rock containing charcoal belongs to volcano sediment - alteration hydro thermally gold deposits , the formation of gold deposits is controlled by several factors
本区金矿床的成因比较复杂，石英脉+蚀变岩型金矿属于热液叠加复合成因矿床，含炭火山碎屑岩型金矿属于火山沉积?变质热液改造型层控金矿床。 - By study dabaoshan deposit on minerogenetic and geological background , mineral constituent , rare - earth element , isotope and typomorphic feature of sulpurization mineral , finally , we made a conclusion that dabaoshan deposit resulted from the volcanic deposition which type is laterebuilt and magma hydrothermal superimposed . we found the upside of dabaoshan deposit have been denuded or oxidized , bassically , it have reached the lowest part of the deposit
通过对大宝山矿床的成矿地质背景、矿物成分、稀土元素组成、同位素以及黄铁矿、闪锌矿、方铅矿的标型特征进行研究，确定了大宝山矿床的成因为火山沉积，经后期岩浆热液叠加型矿床，对矿床的远景进行了预测，提出大宝山矿床的上部矿体已被剥蚀或被氧化，基本上已经到矿体的深部的观点。