英语翻译Given a source rock for gold and a reservoir fluid capab

英语翻译
Given a source rock for gold and a reservoir fluid capable of transporting gold,it remains to conside an appropriate mechanism for gold precipitatio within a structurally prepared,near-surface environ ment.One gold precipitating mechanism involve mixing of different fluid types,as documented and advocated by Henley and McNabb (1978),Henley and Ellis (1983),and Hedenquist (1983).Passiv mixing of acid,near-surface waters with rising neutra to alkaline solutions results in destabilization of bisulfide complexes and formation of precious metal-bearing precipitates.The evidence available from hot spring deposits,however,suggests that boiling is the primary mechanism responsible for gold precipitation Boiling causes cooling,oxidation,and an increase in solution pH,all very effective mechanisms for gold deposition (Romberger,1983).The presence of base metal sulfides and adularia,coprecipitated with gold and abundant silicia in hot spring deposits,also suggests a boiling rather than a mixing mechanism for precious metal mineralization (e.g.,Fournier,1983).
Rapid and near-instantaneous channeling of fluid through permeable vent breccias and periphera fractured stockworks over a heated geothermal reservoir increases the pressure gradient in a convectin fluid column.Donaldson (1968) has shown that the boiling level in a column of given permeability can be raised to within a few hundred meters of the surface by increasing the flow rate toward a limit set by
the cold water hydrostatic head.Precious metals are thereby lifted into the hot spring environment abov an elevated boiling level and precipitated along with
pyrite and marcasite,quartz,and a distinctive trace element suite consisting of shallow,enriched Hg,Tl,Sb,and Ba grading with depth through the gold (plu
As) orebody to deep,enriched Cu,Pb,Zn,W,andAg.Repeated hydraulic fracturing and hydrotherma eruptions followed by periods of high fluid throughpu combine to produce economically recoverable gold deposits in the shallow parts of geothermal systems

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Given a source rock for gold and a reservoir fluid capable of transporting gold,it remains to consider an appropriate mechanism for gold precipitation within a structurally prepared,near-surface environment.One gold precipitation mechanism involves mixing of different fluid types,as documented and advocated by Henley and McNabb (1978),Henley and Ellis (1983),and Hedenquist (1983).Passive mixing of acid,near-surface waters with rising neutral to alkaline solutions results in destabilization of bisulfide complexes and formation of precious metal-bearing precipitates.
假设有了黄金矿源岩及一个可迁移黄金的流体库,还需要考虑在一个结构配备和靠近地表的环境里让黄金沉淀的一个适当机制.Henley和McNabb (1978),Henley和Ellis (1983)以及Hedenquist (1983).的文献中主张,有一种黄金沉淀机制涉及混合各种不同的流体.酸性物质、近地表水及上涨的中性到碱性溶液的被动性混合,导致二硫络合物脱稳以及含贵金属沉淀的形成.
The evidence available from hot spring deposits,however,suggests that boiling is the primary mechanism responsible for gold precipitation.Boiling causes cooling,oxidation,and an increase in solution pH,all very effective mechanisms for gold deposition (Romberger,1983).The presence of base metal sulfides and adularia,co-precipitated with gold and abundant silica in hot spring deposits,also suggests a boiling rather than a mixing mechanism for precious metal mineralization (e.g.,Fournier,1983).
不过,温泉矿床现有的证据认为沸腾才是导致黄金沉淀的主要机制.沸腾所造成的冷却、氧化和溶液PH的增加,这都是对黄金沉积非常有效的机制 (Romberger,1983).温泉矿床发现与黄金一起沉淀的贱金属硫化物和冰长石,以及丰富的硅,也体现贵金属的矿化是沸腾机制而不是混合机制所形成的 (例：Fournier,1983) .
Rapid and near-instantaneous channeling of fluid through permeable vent breccias and peripheral fractured stockworks over a heated geothermal reservoir increases the pressure gradient in a convection fluid column.Donaldson (1968) has shown that the boiling level in a column of given permeability can be raised to within a few hundred meters of the surface by increasing the flow rate toward a limit set by the cold water hydrostatic head.
通过在一个受热的地热水库上面的渗透孔角砾岩及外周断裂网状矿脉快速和准瞬间地将流体引出,会增加对流流体柱内的压力梯度.Donaldson (1968)曾显示在一个指定渗透率的流体柱内的沸腾高度,可以利用加快流量率流向冷静水头压力所设的限制,将高度提升至离地表仅几百米.
Precious metals are thereby lifted into the hot spring environment above an elevated boiling level and precipitated along with pyrite and marcasite,quartz,and a distinctive trace element suite consisting of shallow,enriched Hg,Tl,Sb,and Ba grading with depth through the gold (plu As) ore body to deep,enriched Cu,Pb,Zn,W,and Ag.Repeated hydraulic fracturing and hydrotherma eruptions followed by periods of high fluid throughput combine to produce economically recoverable gold deposits in the shallow parts of geothermal systems
贵金属因此被晋升至位于升高的沸腾水平上面的温泉环境,并与黄铁和白铁、石英一起沉淀；
同时沉淀的还有独特的一组微量元素包括在浅层、浓缩的汞、钛、锑及钡,以朝向深坡度穿过黄金矿体直至深层的浓缩铜、铅、锌、钨及银.经过重复水力压裂及热液喷发,接着结合经多段时间高速流体量,形成了在地热系统浅部的经济可采储量的黄金矿床.
【英语牛人团】