Geological and Mining Consulting Services

For almost 40 years GDD have provided services in both the operational and management aspects of exploration and mining geology, mineral resource and ore reserve estimation, grade control, production reporting and reconciliation…..

Across a range of commodities including base and precious metals, coal, iron ore and phosphate

Our project experience ranges from grass-roots junior exploration organisations to the majors producing in excess of one million ounces of gold per year

Exploration and Mining Geology

·      Literature searches and data compilation

·      Surface exploration and drilling program design and management

·      Sampling and QA/QC analysis, standards and procedures

·      Data collection, management and analysis standards and procedures

·      Statistical and geostatistical analysis

·      Geological interpretation, modelling and evaluation

·      Mineral resource and ore reserve estimation

·      JORC 2012 / NI43-101 Compliant Reporting

·      Commodities

·      Gold / precious metals

·      Coal

·      Base metals

·      Iron ore

·      Phosphate

·      Exploration data and resources auditing, due diligence and independent geologist reports

Open Pit and Underground Mining Services

·      Mining geology mapping and sampling

·      Reserve estimation

·      Grade control design, implementation and review

·      Production tracking and monitoring

·      Production reporting

·      Reconciliation

·      Reserve model / blasthole grades / mill production

·      Grade control and reserves auditing and due diligence studies

    Technical Services

Data design, collection, management and analysis of -

·      Geotechnical data

·      Hydrology and hydrogeology data

·      Environmental monitoring data

·      Core and sample retention, storage and indexing