Afghanistan, a nation battered after three decades of war and conflict, has a new opportunity to reset the calculus on its internal and regional insecurities through the establishment of a mineral mining economy. Following the invasion of Afghanistan by coalition forces in the f…
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Cu-As feedstocks are among the most problematic copper sources that have been avoided over the past years. The high arsenic content of such ores/concentrates combined with their refractory nature have directed the metallurgical industry towards developing efficient technologies …
The McMurray Formation contains complex geological features that were partially formed in a fluvial-estuarine depositional environment. These geological features that are interrelated to each other exist with different shapes, patterns, and sizes. The inclined heterolithic strat…
As in all flotation separations, the separation efficiency for the flotation of pyrite from auriferous pyrite ores depends on the flotation conditions and the particle properties of the feed ore. Liberation and texture are particle properties that refer to release of valuable mi…
A field survey was undertaken in Central Kalimantan, Indonesia (Borneo) to assess the extent and practices of Artisanal and Small-scale Gold Mining (ASGM), and to measure sediment and mercury flows in the provinces' rivers. More than forty mining operations were visited in six o…
This thesis presents an analysis of a body of knapped-stone from Catalhoyuk, the largest known Neolithic site both in Turkey and the Near East. The study contributes to an increasing trend in lithic studies towards more contextual analyses, in which the wider social framework of…
This thesis presents new methods to improve open stope hangingwall (HW) design based on knowledge gained from site visits, observations, and data collection at underground mines in Canada, Australia, and Kazakhstan. The data for analysis was collected during 2 months of research…
Drilling and blasting are seen as sub-systems of size reducing operations in mining. To have better design parameters for economical excavation of mineral production and fragmentation, the comminution and fragmentation operations need to be studied and optimized independently, a…
This dissertation aims to advance the state-of-the-art in measuring and predicting weak rock mass modulus in a variety of geotechnical conditions. This goal has been accomplished by collecting in-situ data from underground mines in Nevada and by reappraisal and critical review o…
The assessment of fragmentation is an important aspect of the design and planning of any excavation. The distribution of fragment sizes in situ helps assess the requirement of explosive energy to excavate the rock material. In addition, the information can also be used to evalua…
This study investigated the differences in the cutting performance of two rock cutting tools in dry and saturated rock. For this purpose, a permeable quartzose sandstone was subjected to a series of full scale linear rock cutting tests, in both dry and saturated conditions, usin…