This paper presents an inverse analysis of the unobserved trigger factors with respect to the slope failures based on the Structural Equation Modeling (SEM). The quantitative prediction models generally construct the relationship between the past slope failures and the causal factors (i.e. lithology, soil, slope, aspect, etc.), but does not deal with the trigger factors(i.e. rail fall, earthqua...

Groundwater models provide an efficient means to evaluate the sustainability of new groundwater production wells. An important component of any groundwater modeling analysis is the quantification of the prediction uncertainty. This analysis incorporates uncertainty analysis techniques within the groundwater modeling environment to predict regions within a groundwater basin that have a low proba...

Reservoir heterogeneities exist at several length scales. Reservoir properties will depend on the scale that we are analysing on the reservoir (from core to grid block). Facies are normally identified in cores and classified based on microscopic and small scale features such as lithology, grain size, texture, sedimentary structure, colour and fossil content. However, facies information is only ...

BACKGROUND Soils are widely recognized as a non-renewable natural resource and as biophysical carbon sinks. As such, there is a growing requirement for global soil information. Although several global soil information systems already exist, these tend to suffer from inconsistencies and limited spatial detail. METHODOLOGY/PRINCIPAL FINDINGS We present SoilGrids1km--a global 3D soil information...

This research is about 1D geomechanical model for wellbore stability in Z Field, Y Well Sanga Working Area, Kutai Basin where wells have been drilled. The Purpose of this Research to analyze the well starting from knowing stress regime that occurs, predicting occurrence failure, and determining safe mud weight window next drilling. method use a numerical modelling using log data drilling has ob...

Groundwater is closely related to hydrogeological structure and hydro-lithology, which mainly refers the spatial distributions properties of environment where groundwater occurs. To analyze constraints hydro-lithology on regional resources in Eastern Henan Plain, China, we reconstructed three-dimensional (3D) hierarchical models at two scales, structural hydro-lithological models, using cross-s...

This research presents the results of the GIS-based statistical models for generation of landslide susceptibility mapping using geographic information system (GIS) and remote-sensing data for Cameron Highlands area in Malaysia. Ten factors including slope, aspect, soil, lithology, NDVI, land cover, distance to drainage, precipitation, distance to fault, and distance to road were extracted from ...

The south-west coast of the Isle of Wight (see Figure 4.1 for general location) is geomorphologically rich in features of interest. It contains examples of most of the cliff types undergoing active erosion described from other GCR sites. The site demonstrates well how coastal processes have produced different cliff forms related not only to variations of lithology and geological structure, but ...

avo as a known methodology is used to identify fluid type and reservoir lithology in subsurface exploration. method discussed in this paper, consists of three stages, including: direct modeling, inverse modeling and cross plot interpretation. by direct modeling we can clarify lithology or fluid dependent attributes. analysis performed using both p-p and p-sv attributes. inverse modeling deals w...

the lithologies of regions, which located near the collision zone, are very different from other geology setting. mapping in these areas needs extensive and exact studies and tools because of the variety of rocks, intensive tectonic uplift and complicated units. hyperspectral sensor is one of the most advanced tools with hundreds of bands that each measures a very narrow range of wavelengths an...