摘要
井中声波透视法探测金属矿研究取得实效，在国内尚属首次。本文叙述了井中声波透视法的基本原理和野外观测系统及工作方法、仪器简要特点和技术性能、声波资料的层析成像处理方法和软件。讨论了铜铁矿床和铅锌银矿床岩矿的声学特性和矿体的透射波异常场特征。列举了方法用于寻找隐伏矿和深部盲矿、确定矿体位置及产状、圈划矿体形态等应用实例，说明了方法的有效性。特别是在大冶铜铁矿床进行找矿应用研究中，对相距180m的两个未见矿钻孔做井中声波测量，发现了井旁盲矿异常，圈出了两个矿层。经布钻验证见矿，矿厚度分别为39.12m和17.77m。矿体相对钻孔的空间位置、大致深度和产状均与推断结果相符，取得了好的效果。
:
It is for the first time that the borehole sonic perspective method has gain-
ed practical effect in prospecting for metallic ore deposits in China. This
paper describes basic principles of this method, its field observatiou system
aud working method, main characters and technical behaviors of instruments,
tomographic imagery processing method for sonic data and software. Acoustic
properties of rocks and ores in copper-iron deposits and lead-zinc-silver depo-
sits and characteristics of transmission wave anomalous fields of ore bodies are
discussed. Case studies are given concerning the utilization of this method in
searching for concealed and deep-seated blind ore deposits,determining locations
and attitudes of ore bodies and delineating ore bodies, and the data obtained
illustrate the effectiveness of this method. During the ore prospecting practice
in the Daye copper-iron deposit, in particular, the borehole sonic survey pei-
formed in two barren drill holes 180m from each other led to the discovery of
anomalies caused by blind ores beside the drill holes and the subsequent deli-
neation of two ore beds. Later, drilling inspection revealed ore beds 39.12 m
and 17.77 m iespectively in thickness. The spatial pcsitions of ore bodies rela-
tive to the drill holes and their depths and attitudes are all in agreement with
what was inferred, indicating good results.
出处
《物探与化探》
CAS
CSCD
1991年第5期340-351,共12页
Geophysical and Geochemical Exploration
