... ), can be calculated by the program without an expert's manual rating. To identify major outcrop joint surfaces, the random sample consensus algorithm was employed. Subsequently, we calculate the weighted joint density ( wJd ) and its corresponding RQD based on the major joint surface. The spherical K...

... complex reservoir reservoir geomechanics porosity upstream oil & gas reservoir simulation flow in porous media dobrynin matrix compressibility karst compressibility geologist united states government rock type geological subdiscipline karst feature pore pressure outcrop hashin...

..., which makes the rock salt outcrop structure probably different from halite core. In this paper, physical property and chemical composition comparisons were conducted first to determine the difference between conventional rock salt outcrop and the halite core. The creep behavior of rock salt, shale...

... engineering 3D geovisualization experience. We demonstrate how VR/MR techniques can be employed to conduct/compare discontinuity mapping on virtual outcrops and advance the understanding/communication of landslide investigation and hazard/risk assessment. structural geology human computer interaction...

... exponents at seismic scales compared with those at outcrop and specimen scales. By reconstructing artificial self-affine fault planes using parameters derived from seismic-scale faults and extrapolating below the seismic resolution, we develop finite-element based geodynamic fault models to investigate...

.... Upstream Oil & Gas Reservoir Characterization Fluid Dynamics flow in porous media Orthoclase variation outcrop lithified sandstone structural geology footwall sandstone fault zone control Rio de Janeiro deformation basin resende formation permeability grain size distribution...

... models that are created. Artificial Intelligence accuracy investigation bentley contextcapture Survey Point US government outcrop ROCK mass CHARACTERIZATION digital photogrammetry software comparison geotechnical investigation software package check point contextcapture digital model...

... in geomorphology. 10Be-derived bare rock erosion rates were measured for 20 outcrops in the Blue Ridge Mountains of Virginia comprised of either 1) quartzite, 2) fine metasandstone, 3) coarse grained metasandstone, or 4) granite. Subcritical cracking parameters (e.g. fracture toughness, subcritical cracking index...

... length of a discontinuity set based on a circular sampling window is pointed out. Also the major shortcomings that exist with the equation proposed to estimate the two-dimensional density of a discontinuity set using a circular window are pointed out. The discontinuity traces appearing in the outcrop...

... government outcrop spatial reasoning rock slide North Carolina foliation database cut slope blue ridge parkway stability analysis data layer hazard acid-producing rock BRP dip direction Sulfide Mineral ARMA 09-171 Rock Slope Stability Analysis along the North Carolina Section of the Blue...

...1. INTRODUCTION The Shale-Limestone Chaotic Complex (hereafter called as SLCC) is a typical melange widely outcropping in the Northern Appennine chain in Italy. It is made up of a highly tectonized clayey matrix containing heterometric, randomly distributed, marly-calcareous blocks in a typical...

... from boring or surface geologic information, or the scaling between outcrop and boring levels of observations to the scale of engineering interest [6,7,8,9,10,11]. These studies [3-11] provide a good framework for engineering characterization of melanges, but a non-trivial step is to recognize...

... ABSTRACT: On the slopes of an ancient volcano near the town of Hakone, Japan, is an outcropping of andesite. Approximately 700 years ago, 25 images of Buddha were carved on the sides of the rock outcrop. The carvings are collectively referred to as the 25 Stone Buddhas Group. Over...

... ABSTRACT: A light-weight portable velocity probe has been built to permit rapid ultrasonic measurements on core, outcrops, rock samples, and other materials. This tool can be used to estimate porosity, examine anisotropy and inhomogeneity, correlate among units, assist calibration of down-hole...

... outcrop and core data delineates important variations in fracture patterns that in turn affect the physical/ mechanical properties of the coal. 2 GEOLOGIC SETTING The San Juan Basin of the east-central Colorado Plateau, New Mexico and Colorado, is a Late Cretaceous to early Tertiary structural basin...

... ABSTRACT INTRODUCTION This paper is the result of a Bureau of Mines program to characterize roof conditions near outcrop in drift coal mines of eastern Kentucky (Sames and Moebs, 1989). Joints occur throughout the shallow 'overburden of eastern Kentucky, separating the strata into blocks...

...- flicting, general conclusions to this published work are that joint spacings tend Co be exponentially dis- cribuCed (i.e., the Joints themselves are spaticily random), and chat trace lengths in outcrops tend either co be exponentially or logNormally distributed. The evidence for distinguishing between...

..., a model was developed for inferring joint set parameters and for estimating the intensity of jointing (joint surface area per volume) from outcrop data. Intensity of jointing is an indicator of persistence. 1. INTRODUCTION Accuracy in predicting rock mass behavior de- pends on adequate characterization...