MINERAL RESOURCES and ORE RESERVES
Xstrata Alloys has adopted the 2004 Australasian Code for Reporting Exploration Results, Mineral Resources and Ore Reserves (the JORC Code) as its mandatory standard for the estimation of public reporting of Mineral Resources, Ore Reserves and Exploration Results. The estimation process is further based on the Xstrata Alloys procedure “HSEC-G-08-The Procedure for the estimation of [...]
Wirtgen Surface Mining: 2200 SM: Non-blasting dolomite mining in a gravel quarry near Hornstein in Austria
Wirtgen Surface Mining: 2200 SM: Non-blasting dolomite mining in a gravel quarry near Hornstein in Austria Wirtgen Surface Mining Situation: The company Josef Fröstl GmbH is a supplier of gravel material. One of its quarries is located in Hornstein in Austria. At this exisiting dolomite quarry, material had formerly been obtained by drilling and blasting. The company [...]
Mining ore summary
Mining ore summary Most elements need to be concentrated into amounts that can be economically mined from ore deposits (usually hundreds to thousands of times their crustal abundance). This concentration is usually accomplished by dissolution of the element by hot water (hydrothermal ore deposits – gold, silver, lead), preferential crystallization from magmas (chromite deposits or [...]