Impacts of Manganese Mining Activity on the Environment ...- impact of mining manganese ,The mining district of Molango in the Hidalgo State, Mexico, possesses one of the largest deposits of manganese (Mn) ore in the world. This research assessed the impacts of Mn mining activity on the...Cumulative Groundwater Impact of Mining in the Kalahari ...Cumulative Groundwater Impact of Mining in the Kalahari Manganese Field and the Need for a Strategic Environmental Assessment Approach . Markus Zingelmann