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Mine site analysis

Mine site laboratories

ALS prides itself on reliable analytical data to ensure the achievement of targets and seamless project operation. It is important for on-site mine and process support laboratories provide world-class data to assist in making better strategic and operational decisions, while reducing fixed costs. Independent mineral analyses by ALS allow mines to effectively manage regulatory reporting requirements.

Inclusion in the ALS global network

The state-of-the-art equipment used in ALS mine site laboratories is consistent with that in ALS commercial analytical geochemistry laboratories, ensuring the same reliable and superior outcomes are delivered. Applying ALS principles, procedures, and quality standards to the operation of mine site laboratories, in combination with utilising ALS’ global laboratory information management system, clients gain the assurance and convenience that demands will be met with the utmost care.

Core Services

Identification of potential recovery and remediation issues is crucial as early in a project as possible. Our core services and data integration platform (CoreViewer^TM) can assist in identifying subtle or cryptic mineralogy that may save time and money in any exploration project.

On-site core services:

Core sawing and sampling
Core photography
Hyperspectral mapping and interpretation
CoreViewer^TM

Grade Control Analysis

ALS mine site analysis provides the flexibility to choose from a large variety of methods to best suit a project or ore type. Customisable methods can also be created by our experts to ensure all analytical needs are met. For more information on methods available, please see our Precious Metals, Generative, and Targeted explorations sections.

A selection of analysis options for grade control

Moisture, bulk density, specific gravity, and particle size distribution
Gold and other precious metal analysis (fire assay, PhotonAssay, BLEG, Leachwell^TM).
Carbon and sulphur analysis
Loss on ignition

Acid digestion or fusion plus analytical instrumentation for multi-element suite analysis (AAS, XRF, ICP-AES).
Davis Tube Recovery and magnetic susceptibility for iron ore.
Classical wet chemistry techniques as required.

Mill Monitoring

ALS understands the importance of providing critical operational data to optimise mining and mineral processing production. As a value add-on to our analyses, we offer the Process Control Alerts^TM service within Webtrieve^™ for ALS Mine Site clients, which allows plant managers and operators to receive SMS and/or email alerts when a routine analytical control returns out of bounds results. This information is also available via the ALS Geochemistry App^™ and can help quickly identify low recovery in the cyclone overflow, or excess metals in tailings or treated water discharge to improve your processes.

Mill monitoring analysis

Gold in cyanide liquors
Gold captured on activated carbon
Multi-element analysis
Moisture, bulk density, specific gravity, and particle size distribution

Loss on ignition
Carbon and sulphur analysis
pH and dissolved oxygen

Umpire & Bullion Analysis

A mine in development or production needs a specialised set of analyses for mine products. These include geochemical methods designed for concentrates and high-grade samples; and those used to monitor process metallurgy and umpire assay of bulk concentrates.

Umpire and bullion analysis

High accuracy and precision analysis is needed for umpire and bullion analysis. All control assays are analysed in duplicate at a minimum and include analytical proofs to assure quality.

Supporting Services for Metallurgical, Environmental, & Industrial Analysis

ALS's world-class analytical geochemistry, metallurgical, environmental, and industrial testing knowledge is delivered on site, providing the convenience of continuous analytical support without compromise.