组合激电测深装置的应用与研究
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摘要
在有色金属矿产勘查中,激电测深由于工作效率低,仅在重点异常剖面布置几个测深点,未能在工区更多剖面发挥出应有作用。为了提高激电测深野外数据采集工作效率,先后引进梯度电测深及借线遥控电极,并且自制"多极距中梯测深电极集中器",组合成一种新的遥控梯度电测深采集装置。该装置在小极距时采用对称四极(亚对称四极)测深装置,在极距较大的情况下更换成中间梯度测深装置,组合完成激电测深剖面观测。通过遥控电极阵列方式代替传统测深"渐进式"的扩大电极极距方式,提高了电测深的观测效率和解释能力。将这种新的中间梯度激电测深装置应用在构造、地层复杂的金矿勘查区,结果表明,它能大大提高激电测深效率,取得较好勘查效果。
Induced polarization is an effective method in exploration of nonferrous metals. Its efficiency is low while the working area including many IP profiles,which is a result of setting up a few of points in one section. In order to improve the efficiency of IP,a new remote electrode gradient device was created by using self-making multi-spacing central gradient device,which is based on Ge Weizhong's gradient IP and remote electrode. This device can be used as Schlumberger electrode array in small polar distance and central gradient device in large polar distance. The efficiency of IP was improved by using remote electrode from traditional progressive arrangement to array arrangement. It shows the validity of using this IP device in survey of gold ore in complex tectonic and layers area.
Induced polarization is an effective method in exploration of nonferrous metals. Its efficiency is low while the working area including many IP profiles,which is a result of setting up a few of points in one section. In order to improve the efficiency of IP,a new remote electrode gradient device was created by using self-making multi-spacing central gradient device,which is based on Ge Weizhong's gradient IP and remote electrode. This device can be used as Schlumberger electrode array in small polar distance and central gradient device in large polar distance. The efficiency of IP was improved by using remote electrode from traditional progressive arrangement to array arrangement. It shows the validity of using this IP device in survey of gold ore in complex tectonic and layers area.
引文
[1]傅良魁.电法勘探教程.北京:地质出版社,1983.
[2]葛为中,吕玉增,丁云河.梯度电测深剖面法及其应用[J].物探与化探,2011,35(2):207-211.
[3]葛为中.电测深布极装置及观测方式的变革[C]//中国地球物理学会第23届年会论文集.青岛:中国海洋大学出版社,2007,259-260.
[4]杨兴沐,黄卓雄,葛为中,等.遥控电极阵列拓展高密度电阻率法勘探深度研究[J].物探与化探,2016,40(1):74-77.
[5]葛为中,梁炳和.电法勘探遥控电极阵列的研究和应用前景[C]//中国地球物理学会工程地球物理专业委员会2013年工程与地质病害地球物理技术研讨会论文集.泰安,2013,41-44.
[6]宋双全,殷亚飞,黄仕茂.多极距中梯电测深技术与研究[J].西部探矿工程,2009,0154(4):154-157.
[7]杜利明,武军杰,杨金夺,等.梯度电测深方法在沂南金矿勘查中的应用[J].物探与化探,2013,37(2):226-228.
[2]葛为中,吕玉增,丁云河.梯度电测深剖面法及其应用[J].物探与化探,2011,35(2):207-211.
[3]葛为中.电测深布极装置及观测方式的变革[C]//中国地球物理学会第23届年会论文集.青岛:中国海洋大学出版社,2007,259-260.
[4]杨兴沐,黄卓雄,葛为中,等.遥控电极阵列拓展高密度电阻率法勘探深度研究[J].物探与化探,2016,40(1):74-77.
[5]葛为中,梁炳和.电法勘探遥控电极阵列的研究和应用前景[C]//中国地球物理学会工程地球物理专业委员会2013年工程与地质病害地球物理技术研讨会论文集.泰安,2013,41-44.
[6]宋双全,殷亚飞,黄仕茂.多极距中梯电测深技术与研究[J].西部探矿工程,2009,0154(4):154-157.
[7]杜利明,武军杰,杨金夺,等.梯度电测深方法在沂南金矿勘查中的应用[J].物探与化探,2013,37(2):226-228.