金礦開采外文翻譯-文庫吧
2025-04-16 15:07 本頁面
【正文】 處于強擠壓狀態(tài)。擠壓作用導致巖 層發(fā)生褶皺變形、巖石破碎和位移的過程中，有大量構造動能轉化為熱能，運動巖塊之間 的摩擦熱甚至可以達到使巖石熔化的程度。區(qū)域高的熱流值是擠壓造山帶的重要特征。 巖漿熱和構造熱的結合，使得大場地區(qū)成為一地熱異常區(qū)，并具有較高的古地溫梯 度區(qū)內構造破碎帶發(fā)育的鈣化就是地熱異常的佐證 . 大場微細粒浸染型金礦與斷裂破碎帶形影相依。含礦斷裂為瑪多一甘德深大斷裂旁側的與深大斷裂基本呈平行分布的次級斷裂，礦化主要富集于斷裂構造性質由壓扭性轉化為張性擴張部位。由于成礦所需的富集系 數(shù)特大，為能在大范圍內聚集成礦元素，就必須有深切割的斷裂存在，以造成和深部的溝通并形成大規(guī)模的熱液環(huán)流系統(tǒng)，這就是礦化與大斷裂具有時空聯(lián)系的原因。旁側次級壓扭性斷裂，能造成良好的屏蔽條件和半封閉環(huán)境，溫度、壓力下降緩慢，有利于交代作用的充分進行和高硫低氧型礦質的形成，在張性空間礦體定位。綜上所述，三疊紀沉積作用所形成的濁積巖建造，是一種含金地質建造，主要以吸附形式存在于其中的金大多為可釋放 (活性 )金，為成礦奠定了豐富的物質基礎。印支晚期開始的強烈構造運動所造成的圍壓環(huán)境下的構造巖漿活動，導致了廣泛的熱效應和 擴容空間效應，為金的活化、轉移、聚集創(chuàng)造了有利條件。 3 外文原文 Lead it Big gold mine is north BaYanKaLa region of qinghai province during the period of 15 found large gold deposit, located in qinghai province yushu Tibetan autonomous prefecture song ma ma lai county township north, tectonic position in BaYanKaLa indosinian orogenic belt on the north, north by a cloth green south slope fracture adjacent to nima o qing suture of the large gold deposit of gold mineralization type orogenic type gold deposits, we through large area 1: after 50000 mineral geological investigation and study that large field with western northeast sichuan village gold, gold gold northwest guangxi, such as analogy, the gold mineralization types for the microgranular disseminated type gold deposit. A large gold deposit geological background Big game gold deposit in north BaYanKaLa indosinian yanshanian gold, antimony mineralization belt, the gold mine of fu seam for Triassic ba yan kara mountains SLATE clip sandstone group, is a set of typical turbidite, ore rock mainly for dark grey mud calcium feldspar sandstone SLATE, speckled SLATE gray. Gold ore body in the plane strictly controlled by the fault fracture zone, and therefore with different degree of broken ore rock mon deformation, until the part be cataclastic rock. Fracture structure more along the anticline axis. Mining area development of hydrothermal alteration, its size and strength is determined by structural fracture zone scale, nature and rock the petent. Major alterations are silicification, sericitization and sulfide materialized, local kaolin, lithification carbonate. Pyritization, poison placer, stibnite, sericitization, silicification and gold mineralization, the most closely, the ore body center outward silicide, vulcanization materialized, sericitization, lithification carbonate, kaolin. Ore minerals are mainlypyrite and arsenopyrite, gangue mineral. Gold ore body is in a SE to NW spacing distribution characteristics, such as control by 2020 has 33 gold orebodies, the ore
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