| 1:25000沟系沉积物地球化学测量方法有效性探讨——以东昆仑巴隆地区为例 |
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| 引用本文： | 邱瑜,卢佳,田滔,沈骁,马凤娟,梁棪先.1:25000沟系沉积物地球化学测量方法有效性探讨——以东昆仑巴隆地区为例[J].物探化探计算技术,2019(2):250-256. |
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| 作者姓名： | 邱瑜 卢佳 田滔 沈骁 马凤娟 梁棪先 |
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| 作者单位： | 青海省第五地质勘查院;吉林大学地球科学学院 |
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| 基金项目： | 青海省地质勘查基金项目(青国土资矿[2015]121号;3.3) |
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| 摘 要： | 青海东昆仑地区是青海省重要的金、铜、铁多金属成矿区,1∶250 000、1∶50 000水系沉积物地球化学测量工作在该区域圈定了众多的异常区,但总体查证程度偏低。为实现该区域找矿重大突破,选定巴隆地区部署开展了以采集水系沉积物为主、残坡积岩屑物质为辅的1∶25 000沟系沉积物地球化学测量工作,取得了较为突出的找矿效果。该项工作表明,在青海省东昆仑地区,1∶25 000沟系沉积物地球化学测量方法是一种有效的地质找矿工作手段。该方法能有效克服东昆仑地区北部水系不发育、风成物干扰严重,南部高山区碎石流发育、影响水系沉积物汇聚等因素对找矿的干扰,相对传统的地质找矿方法在异常查证过程中的适用性、可操作性更强,找矿效果好,能实现矿体的精确定位,对东昆仑的地质找矿工作具有借鉴作用。
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| 关 键 词： | 1∶25000地球化学测量 沟系沉积物 地质找矿 青海东昆仑 |
A discussion of effectiveness to the 1:25000 sulcus sediments geochemical survey: The Balong area of east Kunlun as an example |
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| Institution: | (The Fifth Geological Exploration Institute of Qinghai Province,Xining 810099,China;College of Earth Science,Jilin University,Changchun 130061,China) |
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| Abstract: | The east Kunlun area is an important polymetallic metallogenic zone of gold,copper and iron in Qinghai province.There has delineated numerous abnormal areas by 1∶250000 and 1∶50000 geochemical exploration of water system sediments,but the overall level of verification is low.In order to achieve a breakthrough in prospecting of this area,we selected Balong area to deploy 1∶25000 sulcus sediments geochemical survey by taking the collection of water system sediments as the main,residual rock debris as the supplement and achieved good prominent prospecting effect.This work shows that the 1:25000 sulcus sediments geochemical survey method is an effective geological prospecting method in the east Kunlun area of Qinghai province.The method can effectively overcome the disturbance of undeveloped river system with the aeolian in the north Kunlun and sediment aggregation influenced by developed rock debris flow in the southern Kunlun mountains.Compared with the traditional geological prospecting method,the applicability and operability of this method in the process of anomaly verification is stronger.The ore finding effect is good,and the accurate location of ore body can be realized,which has a guiding function for the geological prospecting work in east Kunlun. |
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| Keywords: | 1∶25000 geochemical survey sulcus sediments geological prospecting east Kunlun area in Qinghai province |
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