- Contact analysis, study of mineral grade transitions around the contact of two or more units
- Analysis of distributions of contiguous sections and atomizability level of geological units
- Quantification of contact relationships between geological units based on drilling / holes
- Quantification of contact relationships between geological units in block model
- Connectivity level analysis according to geological unit in block model
- Quantification of surface/volume ratios of bodies for dilution studies
GeoInnova seeks to exploit to the maximum the available geological information, delivering a complete picture of the behavior of the deposit and facilitating decision-making related to geological modeling and resource estimation.
- Have a geological and genetic conceptualization of the deposit according to the knowledge and information available
- Define traceable and reproducible estimation units that maximize the predictability of estimated resources
- Generation of 3D operational geological models, spatially consistent with available information and geological conceptualization
For the generation of geological models, GeoInnova uses the following approaches: Traditional geological modeling: corresponding to the interpretation in plants and sections of geological units for the construction of solids or 3D wireframes . Probabilistic modeling: seeks to obtain the probability of occurrence of each UG in the unsampled sites, using methods such as: cokriging of indicators, Gaussian kriging truncated. Stochastic modeling of geological units: Its objective is to generate numerous possible scenarios of the spatial distribution of geological units, using methods such as: sequential simulation of indicators, multi-Gaussian simulation, simulation by multi-point statistics, It allows to evaluate transfer functions related to the spatial variability of the units. In addition, from these approaches Geoinnova uses an interactive methodology between traditional and probabilistic methods to benefit from both techniques.
- inverse of distance
- Moving average
- ordinary kriging
- Indicator Kriging
- Cokriging of laws
- Geometric criteria and information density
- Geostatistical criteria, kriging variance, regression slope, kriging variance equivalent mesh
GeoInnova, in addition to using the usual practices, has a resource categorization methodology based on the use of conditional simulations, which considers the following aspects:
- objective risk function
- Possible estimation errors
- Uncertainty in mineral resources (grades and geological units)
- Change of support, considering production volumes
- Data quality
GeoInnova has competent people from the Qualifying Commission of Competencies in Mineral Resources and Reserves of Chile.
- Metallurgical recovery and/or extraction
- breakability
- Hardness (work index)
- acid consumption
- feed mineralogy
- Leaching or bioleaching test (soluble ferric copper)
GeoInnova has as a practice and recommends a local estimate the use of simple, massive, and low-cost tests that correlate with complex, scarce, and expensive metallurgical tests, in order to coregionalize a local estimate through cokriging, which allows it to be incorporated into mining planning. .
- Analysis of mining exploitation methods
- Mining designs for exploitation
- Economic and technical analysis of the different exploitation methods under study
GeoInnova provides advice on the design of campaigns by being able to identify the sectors where there is greater uncertainty, in order to optimize the drilling campaign.
mine to mill
The characterization of the hardness of the rock impacts the treatment capacity and with it the direct income of a project or mine. Work Index tests, Starkey tests, Uniaxial Compression (UCS) geotechnical tests, and other data could be studied in order to coregionalize hardness in the deposit.
Error analysis in resource estimation
Using conditional simulations, it is possible to analyze the spatial distribution of the possible errors of the current estimation model, in order to identify areas of high probability of error.
Geological dilution and selectivity and mining analysis
With this type of study it is possible to quantify the potential impact of the geometry, level of connectivity and continuity of geological bodies in mining planning and geometallurgical problems (recovery, extraction, etc.)
The works carried out consist of review and modeling of structural trains that control the different mineralizations of the deposit with the data, later, a local field of preferential directions of continuity is developed, in this way the estimates will follow the local patterns of continuity of the deposit. The results of these works allow the deposits to operate with reconciliations and mining planning with low error, since the incorporation of the structures brings the results closer to the geological reality of the deposit.
At GeoInnova we teach introductory or specialized courses to the entire mining industry community with the aim of helping to enhance their technical skills. For more information write to us at capacitaciones@geoinnova.cl.