overburdenwaste rock iron ore mining in honduras

Rock or Solid Mine Waste Open pit mining has several stages of waste First to access the actual seams or veins of ore the top layers of rock or overburden must be removed Once the overburden has been removed the seams can be extracted When extracting the seams the additional waste rock will be removed to get to the actual ore called gangue

Mar 01 2019 · Over 90 of the mining activities in developed countries adopt open pit methods In large open pits the orebody is usually found relatively close to the surface thus ensuring overburden–to–ore ratios suitable for profitable mining operations in subhorizontal or slightly inclined deposits

Sep 01 2008 · The iron ore is predominantly mined by opencast mining throughout the country The solid material generated in large quantities by iron ore extraction is the material that overlies the ore body and the processed tailings These wastes contain minerals associated with the ore body and host rock mainly the laterite and sometimes the clays

Waste rock is typically removed during mining operations along with overburden of mill tailings are generated from copper iron taconite lead and zinc ore Read More Mining of Iron Ores ispatguru

Mar 14 2014 · To gain access to the iron ore deposit within an area it is often necessary to mine through or remove waste material also known as overburden which is not of an interest The total movement of ore and waste constitutes the mining process

7 Mining Waste Management Market By MineralMetal 71 Introduction 72 Thermal Coal 73 Coking 74 Iron Ore 75 Gold 76 Copper 77 Nickel 78 Lead 79 Zinc 710 Bauxite 8 Mining Waste Management Market By Waste Type 81 Introduction 82 Mine Water 83 OverburdenWaste Rock 84 Tailings 9 Mining Waste Management Market By Region

Sep 18 2011 · Originally thought to be of little value taconite was considered overburden waste in the days when high grade iron ore was mined The iron content magnetite is only 20 30 compared to 50 – 60 iron content in red ore Red ore is also referred to as direct shipped ore because it can be shipped without processing

However other fractions in particular those generated by the nonferrous metal mining industry may contain large quantities of dangerous substances such as heavy metals Through the extraction and subsequent mineral processing metals and metal compounds tend to become chemically more available which can result in the generation of acid or

Where there is no data for waste rock the extent of open cut mining and the ore milled can be used as a surrogate to approximate waste rock production For example iron ore and bauxite uses open cut mining 100 with wasteore ratios of the order of 21

The mine utilizes a combination of mining methods depending upon the size geometry and geotechnical consideration of the various zones Mechanised postpillar cut and fill is the predominant mining method used in chimney type settings throughout El Mochito but is also used in manto areas where possible