The seismic reflection exploration technology plays a key role in the exploration of siliceous iron ore deposits. This technology analyzes the characteristics of underground rock strata reflection waves, helping to determine the location, morphology, and nature of ore bodies, and providing important Read More

As a geophysicist, it is very important to habit of not trusting a contour map until I've seen the data distribution. Even a single suspicious blip on the contour map, I would take the trouble to look into the issue to the extent of checking and verifying the field data. I've observed numerous t Read More

The so-called physical exploration, or geophysical exploration, is to measure the physical quantities of the strata (such as velocity, density, resistivity, etc.), and analyze and study them in combination with known geological data to achieve the purpose of inferring geological conditions.In contra Read More

目前，地球物理勘探方法与技术主要包括以下几种：一、重力勘探重力勘探指的是利用组成地壳的各种岩体、矿体间的密度差异所引起的地表重力加速度值的变化而进行地质勘探的一种方法，只要勘探地质体与其周围岩体有一定的密度差异，就可以用精密的重力测量仪器找出重力异常。然后，结合工作地区的地质和其他物探资料，对重力异常进行定性解释和定量解释，便可以推断覆盖层以下密度不同的矿体与岩层的埋藏情况，进而找出隐伏矿体存在的位置和地质构造情况。二、磁法勘探磁法勘探指的是自然界的岩石和矿石具有不同磁性，可以产生各不相同的磁场，它使地球磁场在局部地区发生变化，出现地磁异常。利用仪器发现和研究这些磁异常，进而寻找磁性矿体和研究 Read More

At present, soil pollution in China is divided into two major areas, namely farmland soil pollution and urban relocation factory soil pollution. This article first explains the investigation of relocation factory soil pollution (i.e. contaminated sites). In 2014, China has issued relevant guidelines Read More

For rockfill dams:• The dam material and the underlying soil together form a velocity structure with high speed in the shallow layer and low speed in the deep layer ("low-speed half-space").• The fundamental mode dispersion inversion is more inclined to analyze the velocity structure of the deep fou Read More