A case study for the application of a novel geostatistical technique for resource estimation of a narrow steeply dipping, gold-silver mineralized quartz vein deposit is …
A methodology to construct training images for vein-type deposits$ J.B. Boisverta,, O. Leuangthonga, J.M. Ortizb, C.V. Deutscha aCenter for Computational Geostatistics, Department of Civil and Environmental Engineering, 3-133 Markin/CNRL Natural Resources Facility, University of Alberta, Edmonton, Alberta, Canada, T6G 2W2
Nov 30, 2019· A variability sampling and testwork protocol was developed to quantify gold grade and recovery. Additional attributes from core logging, mineralogical determination were integrated with grade and recovery data. This contribution presents a case study of strategic and tactical geometallurgical programme application to a narrow-vein deposit.
Geostatistical resource estimation for the Poura narrow-vein gold deposit ... explained that parametric geostatistics like ordinary kriging works well in deposits with a coefficient of variation ...
Key words: Ordinary kriging, JORC classification, Vein type, Chelkureh. 1. Introduction Geostatistics mining by Krige (1951), but it can be traced is concerned with spatial data. That is, each data value is associated with a location in space and there is at least an implied connection between the …
Narrow Vein Modeling and Resource Estimation Mark Sweeney. Page 2 M I N I N G ASSOCIATES Mark Sweeney Current Position Resource Geology –Geostatistics Mining Associates Pty Ltd Brisbane
of the study area. The vein is narrow enough and continuous enough to be treated as a reasonably flat plane in two dimensions, and all sections are drawn an this understanding. The different modes of shading merely denote the years at which the data was added to the continuing study.
Sarama Resources progress exploration in Burkina Faso with Cube Consulting. Sarama Resources Ltd (TSX-V: SWA) is a West African focused gold explorer with substantial landholdings in Burkina Faso, Liberia and Mali. Sarama's flagship properties are situated within the Company's South … read more
Veins are narrow but high grade. Average grade of probable mining blocks 23-27 g/t using 100 g/t top-cut (Uncut 42 g/t). Grade and width vary widely horizontally and vertically. Coarse visible gold in sulphide, predominantly pyrite, seams and webs within vein, fine gold in vein quartz. Typical mesothermal slate belt quartz-gold veins.
Quantifying Uncertainty in a Narrow Vein Deposit – An Example from the Augusta Au-Sb Mine in Central Victoria, Australia A Fowler1 and C Davis2 ABSTRACT The unpredictability of the location, grade and width of narrow-vein deposits presents difficulties for mine geologists and engineers attempting to estimate, schedule, forecast and mine their deposit profitably.
Justin's primary areas of expertise are in geology, deposit modelling, geostatistics, resource estimation and technical systems development. He has worked on gold, base metals and mineral sands deposits, in exploration and production environments, and for resource evaluation.
In geostatistics, outliers can also cause variogram distortions such as pure nugget effect. The Poura Mine in Burkina Faso, West Africa has mined a narrow vein gold deposit using modern open pit and underground mining methods since the early 1980's. Previous resource estimating practices did not make use of geostatistics.
Course Aim and Structure Market turbulence significantly affects the mining industry. While the intrinsic value of a mineral project is still a key consideration, understanding the interrelationship between technical and financial risk to truly understand the long term value of an asset, helps companies make better investment (or divestment) decisions.
Costerfield – a narrow-vein case study. By M McCarthy MAusIMM, Mine Manager, Mandalay Costerfield Operations Pty Ltd; Over the last six years, Mandalay Resources has increased production rates and improved safety outcomes at its Costerfield mine in Victoria, Australia.
Professional Affiliations Australasian Institute of Mining and Metallurgy (AusIMM) Australian Institute of Geoscientists (AIG) Expertise A highly experienced consultant, manager and geologist, Ingvar is skilled in geological modelling, geostatistics (including statistical analysis and variography), linear and non-linear resource estimation methods, and resource classification.
Geology Geology and Geostats Geostatistics Geotechnical mineral exploration Red Pennant Geoscience Blog Resource Estimation. Resource model to accommodate narrow vein mining risks. Published 22 February, 2016 by AMC Consultants on LinkedIn. Comment by Mike O'Brien, Senior Principal Consultant, P.Geo., Pr.Sci.Nat.
Narrow Vein Gold Deposits Narrow vein gold deposits are often characterized by an irregular distribution of gold throughout a mineralized vein. Epithermal gold deposits occur as veins and mineralization follows through three primary modes: open vein type deposits with deposition at depth, hot-spring/sinter type deposits
Grade Control in narrow vein deposits Cube Consulting has many years experience developing and implementing techniques to improve the modelling and grade control of narrow lode deposits. Selecting an appropriate estimation methodology for a mineral deposit is not an arbitrary decision.
Most vein modelling and Mineral Resource estimation methods for narrow vein deposits uses three dimensional (3D) block grade estimation, based on kriging and inverse distance weighting. In addition, most modelling packages require the assumption of a constant dip and dip direction for the whole vein.
Feb 17, 2016· In this short 10 minute webinar, Cath Pitman, AMC Senior Geologist, discusses the importance of understanding the risks associated with the modelling and estimation of narrow veins …
Since joining SGS, Maxime has executed a wide variety of projects involving geostatistics and resource estimations of gold, iron and titanium-vanadium deposits, economic evaluations of narrow vein type gold deposits and audits of resources and reserves internationally.
An example is presented from the Augusta narrow-vein Au-Sb mine in central Victoria, where the simulation results are validated against the input data and survey pickups of the veins along ore drives.
Associate Resource Estimator, MSc, RM-SME Michael Munroe has over 30 years' experience as a mine geologist and manager in narrow vein mining environments. He specializes in mentoring and training geologists and samplers, geologic modeling, resource estimation, and reconciliation. Michael has extensive international mine operations experience in Guatemala, Mexico, Venezuela, Canada, and …
Dr. Machuca has over 13 years of experience in traditional and geostatistical resource modelling, evaluation and auditing for various types of deposits, metals and energy resources, including base metals in skarn deposits, and narrow vein, and disseminated gold deposits. His experience also includes leading multidisciplinary groups in the implementation of 3D modelling technologies for ...
Oct 29, 2017· Making decisions on ore and waste is a huge responsibility. Software that automatically defines optimised polygons and runs multiple scenarios …
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Geotechnical Resource model to accommodate narrow vein mining risks Posted by M. Bijman on February 22, 2016 in Geology, Geology and Geostats, Geostatistics, Geotechnical, mineral exploration, Resource Estimation