青海东昆仑地区1:2.5万地球化学测量方法技术及应用成果
Technique and Application Result of 1: 25 000 Geochemical Survey in EastKunlun, Qinghai Province
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摘要: 位于青海省东昆仑地区的干旱-半干旱高寒山区，水系沉积物异常流长偏短，1∶5万水系沉积物测量不能完全满足地质找矿的需要。青海省1∶2.5万地球化学测量以水系沉积物测量为主，土壤测量为辅，采用多点组合的采样方法，其对1∶5万水系沉积物测量综合异常具有较好的分解和重现性，并且新圈出地球化学综合异常。1∶2.5万地球化学测量综合异常浓集中心更加明显、强度更高，对异常源的定位更准。通过近年来在东昆仑地区开展1∶2.5万地球化学测量工作，发现了果洛龙洼大型金矿，按纳格、瓦勒尕中型金矿，浪木日铜镍矿点等一系列矿床点。因此，1∶2.5万地球化学测量工作方法在阿尔金、柴北缘等类似地球化学景观区得到推广应用。
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关键词:
- 东昆仑 /
- 1:2.5万地球化学测量 /
- 方法技术 /
- 应用成果
Abstract: In the arid and semi-arid alpine region of east Kunlun, Qinghai province, the abnormal flow length of stream sediments is short, 1:50 000 stream sediment survey cannot satisfy the need of the geological prospecting.The 1:25 000 geochemical survey in Qinghai Province is mainly based on the stream sediment survey and aided by soil surveying, and the multi-point combination sampling method has been used in this survey, which has good decomposition and reproducibility for the comprehensive anomalies of 1:50 000 stream sediment survey, causing the more obvious, higher intensity concentration center for 1:25 000 geochemical survey comprehensive anomalies and the more accurate location of abnormal source.In recent years, through the 1:25 000 geochemical survey work in east Kunlun, the Guoluolongwa large gold deposit, Annage and Walega middle gold deposit, Langmuri copper nickel occurrence have been founded.Therefore, 1:25 000 geochemical survey methods can be applied in Aerjin, North Qaidam and other similar geochemical landscape area.-
Key words:
- east Kunlun /
- 1:25 000 geochemical survey /
- technique /
- application result
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