地球化学勘查新技术应用研究
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地质大调查


Study on application of new technologies for geochemistry exploration
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    摘要:

    地球化学勘查是资源和环境领域一种十分重要的勘查评价方法技术。最近十年来地球化学勘查新方法新技术研究的重要进展主要表现在以下几个方面:1)基本解决了森林沼泽区,干旱半干旱高寒山区,高寒湖沼丘陵区中普遍存在的有机质和╱或风成沙对水系沉积物测量的严重干扰问题,确定采样粒级为:森林沼泽区和高寒湖沼丘陵区-10~+60目,干旱半干旱高寒山区-10~+40目或-10~+80目。大大改善了这些地区的地质找矿效果,新找到了以沱沱河多金属矿田为代表的一批有影响的大型-超大型矿床,开创了资源勘查的新局面。2)建立了覆盖区多目标区域地球化学调查方法技术体系:以1点╱4km2系统采集地表(20cm以内)和以1点╱16km2系统采集1.5m深度土壤样品,测试54种元素和指标。提出了农业、环境和城市地球化学异常查证及评价方法。为建立绿色和特色农牧产品基地、碳循环研究提供出高质量的基础地球化学资料。完成了中国勘查地球化学向环境调查领域的成功转型。3)深穿透地球化学理论和方法技术研究获得了一定的进展,发现了纳米尺度金属微粒从深部向地表迁移的线索,初步制定出深穿透地球化学样品的特殊分析测试方法技术。4)油气化探方法技术在曲折中发展前进,初步建立起了完整的勘查方法技术体系,在油气勘查工作中得到一定程度的推广应用,取得了一些成功的油气勘查案例。

    Abstract:

    Geochemical exploration is a very important exploration and evaluation methods in resource and environment field. In the past ten years, new progresses were achieved in the research of new methods of geochemical exploration, which fall in the following aspects: 1)Resolved the disturbances of the organic material and/or eolian sands to geochemical stream sediment survey which pervasively exist in landscape of forest-swamp, arid or semi-arid high-cold mountain, and high-cold lake-swamp hilly land, the grain size is -10 ~ +60 mesh for sampling in forest-swamp landscape and high-cold lake-swamp hilly land landscape, -10 ~ +40 or -10 ~ +80 mesh for sampling in arid or semi-arid high-cold mountain area, which largely improved geological and ore-finding results, find a group of influential large and super large deposits which take the Tuotuo He polymetallic ore field as representative and developed a new situation for mineral resources exploration. 2)Not only a kind of method system for muti-purpose regional geochemical survey in transported soil coveragearea was built: sampling surface soil samples(within 20cm) at density: 1 sample╱4km2 and sampling soil samples at 1.5m depth at density: 1 sample╱16km2, determined 54 elements or indicatrices, but also methods of anomaly verification and evaluation for agriculture, environment and urban geochemical survey were put forward, meanwhile, provided high-quality basic geochemistry date by mean of muti-purpose regional geochemical survey for the establishment of green and characteristic farming and grazing base and research of carbon cycling, and successfully completed from the geochemical field to the environment Survey field transition. 3)The theory and method of deep penetration geochemistry achieved some progress which discovered the nanoscale metal migration track from the surface to the deep crust, and initially established a special analysis technique for deep penetration geochemistry samples. 4)The development of oil and gas geochemical exploration technique is in the turns and twists to go forward which initially developed a kind of integrated exploration method system, and had spread and application in certain degree in oil-gas exploration, and provided some successful cases in oil and gas prospecting.

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杨少平,弓秋丽,文志刚,张华,孙忠军,朱立新,周国华,成杭新,王学求.2011.地球化学勘查新技术应用研究[J].地质学报,85(11):1844-1877.
yangshaoping, GONG Qiuli, WEN Zhigang, ZHANG Hua, SUN Zhongjun, ZHU lixin, ZHOU Guohua, CHENG Hangxin, WANG Xueqiu.2011. Study on application of new technologies for geochemistry exploration[J]. Acta Geologica Sinica,85(11):1844-1877.

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  • 收稿日期:2011-11-10
  • 最后修改日期:2011-11-10
  • 录用日期:2011-11-10
  • 在线发布日期: 2011-11-11