The Haimur area represents the central part of the Wadi Allaqi region in the southern block of the Egyptian Eastern Desert near Nasser Lake and the Nile valley. It is made up of ophiolitic assemblage comprising serpentinite and talc carbonate, listwenite, metagabbro/amphibolite and metabasalt and island arc assemblages. The orogenic gold deposits in the Haimur area occur in the form of smoky/white sulphide-bearing quartz / quartz-carbonate veins or lenses cutting through the listwenite zone-related rocks. The NE-trending auriferous veins were formed due to an extensional to transtensional shearing related to NW Najd shear tectonics. Gold was observed in association with late-pyrite and chalcopyrite paragenetically formed in the gold phase (second phase), while the first phase is the sulphide phase including early-pyrite and arsenopyrite. Arsenopyrite was formed during early metamorphic recrystallization at a high-temperature range between 405 and 512 °C. However, gold was formed at lower temperature through retrograde metamorphism. Three types of fluid inclusions have been recognized: aqueous (type-I), mixed aqueous–carbonic (type-II) and hydrocarbonic (type-III). The P–T conditions of trapping were obtained from the isochore lines of intersection between T = 300–320 °C and pressure range of 60–180 MPa. The Haimur gold deposit was supposed to be derived from metamorphic fluids created by dehydration and decarbonation of ophiolitic mélange assemblages and volcano-sedimentary rocks, in which the gold was transported as Au(HS)2– complexes and precipitated in reduced environment. The strong linkage between the deformation and metamorphism triggered gold deposition in structurally favourable sites related to the Najd fault system.

中文翻译：

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埃及努比亚地盾海穆尔金矿成矿机制及其与变形变质阶段的关系

海穆尔地区是位于埃及东部沙漠南部区块纳赛尔湖和尼罗河谷附近的瓦迪阿拉奇地区的中部。它由蛇纹岩和滑石碳酸盐组成的蛇绿岩组合、李斯特温岩、偏辉长岩/角闪岩和偏玄武岩和岛弧组合组成。Haimur 地区的造山金矿床以烟状/白色含硫化物的石英/石英-碳酸盐脉或穿过与李斯特温带相关岩石的透镜体的形式出现。由于与 NW Najd 剪切构造相关的拉伸剪切到横向剪切，形成了 NE 向的金矿脉。在金相（第二相）中观察到金与晚期黄铁矿和黄铜矿共生形成，而第一相是硫化物相，包括早期黄铁矿和毒砂。毒砂是在 405 至 512 °C 的高温范围内的早期变质再结晶过程中形成的。然而，金是在较低温度下通过逆变质作用形成的。已识别出三种类型的流体包裹体：水性（I 型）、水-碳混合（II 型）和烃类（III 型）。这磷–吨诱捕条件是从它们之间的等距相交线获得的吨= 300–320 °C 和 60–180 MPa 的压力范围。海穆尔金矿被认为来自蛇绿混杂岩组合和火山沉积岩脱水和脱碳产生的变质流体，其中黄金以 Au(HS) 的形式运输2–络合物并在还原环境中沉淀。变形和变质作用之间的强烈联系引发了与 Najd 断层系统相关的结构有利地点的金沉积。