Landslides in the Thompson River Valley, British Columbia, Canada, threaten serviceability of two railway lines that connect Vancouver to rest Canada and US. To minimise impact slope instability on vital transport infrastructure, as well terrestrial aquatic ecosystems, public safety, communities, local heritage, economy, better inform decision making, there is a need for monitoring. Since 2013,...

Leakage in the impervious layer of a domestic waste landfill seriously pollutes soil and groundwater. Therefore, it is necessary to carry out rapid nondestructive leakage location detection. In this research, electrical resistivity tomography (ERT) method opposing-coils transient electromagnetic (OCTEM) were used detect location. The inversion sections both methods showed clear low–middle–high ...

We present an algorithm for focusing inversion of electrical resistivity tomography (ERT) data. ERT is a typical example of ill-posed problem. Regularization is the most common way to face this kind of problems; it basically consists in using a priori information about targets to reduce the ambiguity and the instability of the solution. By using the minimum gradient support (MGS) stabilizing fu...

[1] Geophysical imaging has traditionally provided qualitative information about geologic structure; however, there is increasing interest in using petrophysical models to convert tomograms to quantitative estimates of hydrogeologic, mechanical, or geochemical parameters of interest (e.g., permeability, porosity, water content, and salinity). Unfortunately, petrophysical estimation based on tom...

The present research investigates the morphology and genetical mechanism of a sinkhole which occurred in 2019 Murisengo (NW Italy). This landform is representative several subsidence phenomena that often concern Monferrato area In concomitance with appearance at surface, cone detrital material was found drifts nearby underground quarry. A geological survey performed quarry order to understand i...

The Yeoncheon titanomagnetite deposit formed by Precambrian magma differentiation is located in Gyeonggi-do, South Korea. Our team conducted an airborne magnetic survey for multiscale mineral exploration and then selected a promising area. An electrical resistivity was carried out the potential area to image subsurface structure. Because ore minerals are mainly distributed gabbro monzodiorite r...

Abstract Understanding the internal structure of specific landforms is a crucial prerequisite for determining their origin and evolution. Near-surface geophysics represents non-invasive way subsurface investigation, it can be used to describe conditions, especially in protected areas. We tested possible hypotheses block accumulations evolution by four different geophysical methods (electrical r...

Instability of slopes, embankments, and cuttings on the railway network is increasingly prevalent globally. Monitoring vulnerable infrastructure aids in geotechnical asset management, improvements to transport safety efficiency. Here, we examine use a novel, near-real-time Electrical Resistivity Tomography (ERT) monitoring system for assessing stability cutting Leicestershire, United Kingdom. I...

The two-phase flow widely exists in the nature and industrial processes. The measurement of two-phase flows, including gas/solids, gas/liquid and liquid/liquid flows, is still challenging. Fusions of electrical tomography with conventional sensors provide possibilities to improve two-phase flow accurate measurement. In this paper, fusions of (1) electrical resistance tomography (ERT) with elect...

The results on the effectiveness of five 2D electrical resistivity tomography (ERT) survey profiles for Ag-Pb-Zn, fluorite, and barite exploration Mississippi Valley Type (MVT) magmatic deposits northeast Mexico, are presented. were made in areas with mining activities or mineralization outcrops. Schlumberger, dipole-dipole, Wenner array configurations used measurements. showed that electric ca...