张龙生, 杨祥才, 朱华杰, 何春林. 1988: 从宜溧地区化探试验成果探讨低山丘陵区的一比五万化探工作. 地质通报, (1): 80-86.
    引用本文: 张龙生, 杨祥才, 朱华杰, 何春林. 1988: 从宜溧地区化探试验成果探讨低山丘陵区的一比五万化探工作. 地质通报, (1): 80-86.
    ZHANG Long-sheng, YANG Xiang-cai, ZHU Hua-jie, HE Chun-lin. 1988: 1:50000-SCALE GEOCHEMICAL EXPLORATION IN THE LOW MOUNTAIN-HILL REGION AS VIEWED IN THE LIGHT OF THE EXPERIMENTAL RESULTS OF GEOCHEMICAL EXPLORATION IN THE YIPIAO AREA. Geological Bulletin of China, (1): 80-86.
    Citation: ZHANG Long-sheng, YANG Xiang-cai, ZHU Hua-jie, HE Chun-lin. 1988: 1:50000-SCALE GEOCHEMICAL EXPLORATION IN THE LOW MOUNTAIN-HILL REGION AS VIEWED IN THE LIGHT OF THE EXPERIMENTAL RESULTS OF GEOCHEMICAL EXPLORATION IN THE YIPIAO AREA. Geological Bulletin of China, (1): 80-86.

    从宜溧地区化探试验成果探讨低山丘陵区的一比五万化探工作

    1:50000-SCALE GEOCHEMICAL EXPLORATION IN THE LOW MOUNTAIN-HILL REGION AS VIEWED IN THE LIGHT OF THE EXPERIMENTAL RESULTS OF GEOCHEMICAL EXPLORATION IN THE YIPIAO AREA

    • 摘要: 长江中下游低山丘陵区1:5万化探宜采用水系沉积物测量法。在总体布署上是:1:20万水系沉积物测量→高背景区内的1:5万水系沉积物测量→异常检查;在异常检查时,若使用土壤测量法,测线的布置可以是直线法,也可以是地质路线法,视地形、通行条件予以选择。

       

      Abstract: Stream sediment surveys may be applied in the 1:50000-scale geochemical exploration in the low mountain-hill region of the middle and lower reaches of the Changjiang(Yangtze) River.The general arrangement is as follows:1:200000 stream sediment survey→1:50000 stream sediment survey in an area with a high background value→check of anomalies.During the check of anomalies, if the soil survey is applied,either the rectilinear method or the geologic traverse method may be used for the lay-out of the profiles.The selection of a proper method depends on topography and accessibility. To carry out 1:50000-seale stream sediment surveys in an area with a high background value delineated during the 1:20000-scale stream sediment surveys allows us to reject rapidly large tracts of land without ore prespects,speed up the pace of mineral exploration and raise economic effectiveness.So doing,in terms of 1:50000-scale geochemical exploration,about 1/3 of work amount may be reduced.Take for example the Yipiao area which has an area of 1300 km~2 where samples can be taken,about 400 km~2 of work amount may be reduced and about 20000 yuan(about 5000 dollars)for the costs of sampling,preparation and analysis may be saved.

       

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