Research work · 2015
Open-pit mining
Herb Welhener, John M. Marek
AccessScience
Abstract
The process of extracting beneficial minerals by surface excavations. Open-pit mining is a type of …
Research work · 2015
Herb Welhener, John M. Marek
AccessScience
The process of extracting beneficial minerals by surface excavations. Open-pit mining is a type of …