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摘要高灵敏度稳定的汞气测量技术作为一种十分有效的深穿透地球化学方法,已经被国内外所广泛采用,可以广泛的应用于矿床勘查、构造地质填图、地热勘查、地震预报、考古和环境质量评价... 摘 要

高灵敏度稳定的汞气测量技术作为一种十分有效的深穿透地球化学方法,已经被国内外所广泛采用,可以广泛的应用于矿床勘查、构造地质填图、地热勘查、地震预报、考古和环境质量评价等领域,特别是对于老矿区深部预测和厚覆盖区找矿效果显著。但是由于测汞技术严格保密,核心技术掌握在少数科研人员手中,影响测量精度的因素众多,在实际应用过程中测量效果更是千差万别,因此未能大范围的进行推广,同时由于技术垄断,汞气测量成本也相对较高。
本次研究就是要开发出一套具有自主知识产权的高灵敏高稳定的捕汞管土壤汞气测量仪,该仪器可广泛用于我省的金矿和其它金属硫化物矿床深部找矿的项目中,服务于地质找矿工作。
通过系统的室内和野外方法实验,开发出了一套具有自主知识产权的轻便、快捷、有效的高灵敏高稳定的捕汞管土壤汞气测量设备,成功研制了的纳米镀金膜石英捕汞试管,通过引入恒温装置,改进了热释炉中汞气释放的稳定性,使汞气测量捕获率超过了97%,汞气释放率达到了77%,总有效率超过了75%,汞气测量范围达0.003-10000ng/m3,灵敏度、稳定性、测量范围均优于目前常用的捕汞试管。并在江西省浮梁县外蒋铜多金属矿区、万年县昌港银金矿区进行了汞气测量找矿实践,取得了良好的找矿效果,同时总结出了一套适用于赣北不同景观条件、不同矿种的汞气测量的方法技术和汞气测量常见的异常模式包括单峰式、双峰式和多峰式,异常模式受构造运移通道、赋矿围岩特征和矿体形态控制,相较于常规化探方法,汞气测量具有穿透性、同时性、同地性、时效性和多解性。

关键词:高灵敏测汞技术、汞气测量仪、技术研究、找矿试验
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2011-12-06
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Abstract
High sensitivity stability of mercury gas measurement technique is a kind of very effective deep penetrating geochemical method, has been widely used at home and abroad, can be widely used in mineral exploration, geological mapping, geothermal exploration, earthquake prediction, archaeology and environmental quality assessment and other fields, especially for the old mining area deep prediction and thick coverage area prospecting effect. But because the mercury technology strictly confidential, core technology in the hands of a few scientific research personnel, affect the accuracy of the measurement of many factors, in the process of actual application effect of measurement is differ in thousands of ways, thus failing to large-scale promotion, at the same time as the technology monopoly, mercury vapour measurement cost is relatively high.This research is to develop a set of independent intellectual property rights of the high sensitivity and high stability of the mercury capture tube soil mercury measuring instrument, the instrument can be widely used in our province's gold and other metal sulfide deposit prospecting projects, services in geological prospecting work.Through laboratory and field experiments, developed with independent intellectual property rights of light, fast, and effective high sensitivity high stable mercury capture tube soil mercury vapor survey equipment, successfully developed the nano gold films on quartz mercury capture tube, through the introduction of the thermostatic device, improves the heat release of mercury in gas furnace release of the stability, the mercury vapor survey capture rate exceeded 97%, mercury vapor release rate reached 77%, the total efficiency of more than 75%, mercury vapour measurement range up to 0.003-10000ng / m3, sensitivity, stability, measuring range are better than the present commonly used mercury capture tube. And in Jiangxi province Fuliang county and Jiang Tongduo County metal mine, million years Hong Kong Chang silver gold deposit of mercury vapor survey prospecting practice, obtained favorable ore prospecting effect, at the same time, summed up a set of applicable to the north of Jiangxi different landscape conditions, different kinds of mercury vapor survey techniques and mercury vapor survey of common abnormal pattern includes single peak type, Shuangfeng type and multiple peaks, abnormal patterns of tectonic migration channel, ore characteristics of surrounding rock and orebody shape control, compared to the conventional geochemical method, mercury vapor survey with a penetrating, at the same time, same place, timeliness and multiple solution.
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一浆菠萝0gy
2013-02-16
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mingtaizi1122
2011-12-05
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