Lineament
analysis in geological exploration
The existence of efficient and cost-effective methods that help to
identify prospective targets that are related to or are influenced by tectonic
structures is not common knowledge among professionals in the field of
geological exploration.
The right sampling and Quality Assurance/Quality Control (QA/QC)
procedures are essential in all aspects of the mineral deposit evaluation
process to achieve the best possible confidence in resultant mineral resource
and reserve estimates.
Getting
Quality Assurance and Quality Control procedures and protocols right is crucial
Accurate and proper QA and QC procedures and protocols are
essential to ensure that data collected and created by the mining organization
is of a high level of quality and is in compliance with CIM Standards and
Guidelines. Geological quality control procedures are meant to monitor
precision and accuracy of the assay data, as well as possible sample
contamination during sample preparation and assaying. The quality of the data
used determines the quality of an estimate.
The Director of this seminar, Ricardo Valls, will introduce to the
participants a methodology that will help them to concentrate their exploration
efforts even over new areas with limited or nonexistent geological information,
while keeping their budget in check.
The
centrality of QA&QC procedures
Ricardo will explain how lineament and satellite interpretation
are a way to define where to concentrate exploration efforts, as well as how to
implement QA&QC procedures to guarantee the quality of the collected data.
This is necessary, considering that compliance with the industry-established
QA/QC is no longer an option, but a necessity for all the companies to
implement, especially those that trade in the markets. Quality assurance is
essentially the management system that operates to ensure credible results. The
prime objective of the field QA program is to maximize accuracy by reducing
introduced variability.
The learning will be gleaned from a quality assurance program that
the Director has implemented for the field sampling procedures. This includes
collection, labeling, and shipping components. The quality control component of
this system is a set of activities intended to control the quality of the data
from collection through to analysis. It consists of day-to-day activities such
as:
o The
adherence to written protocols; up-to-date and suitable training of personnel
o The use of
reliable laboratories with excellent QA&QC systems in place
o The regular
use of quality control (QC) samples (blanks, standard samples, and field
duplicates)
o Diligent
record keeping.
Ricardo will cover the following areas at this seminar:
o History of
the problem, why we need to change the current approach
o Lineament
analysis
o Lineament
analysis and satellite interpretation of data
o Physical
modeling (3D strain analysis and 3D stress analysis)
o Statistical
procedures (Compositional data analysis, correlation analysis, principal
component and other methods)
o Defining a
QA/QC program, Blanks, duplicates, standards, external controls
o Procedures
and audits
o Rock naming
in the field
o Conclusions
and recommendations.