mining method used on wide ore bodies

What are the main methods of mining? | American ...

There are four main mining methods: underground, open surface (pit), placer, and in-situ mining. Underground mines are more expensive and are often used to reach deeper deposits. Surface mines are typically used for more shallow and less valuable deposits.

2. Mining Methods - Copper

Open pit mining is a technique used to extract copper ore near the earth's surface. Open pit mining is the most widely used technique of mining copper today. It is accomplished by creating and using benches or terraces to gradually reach deeper under the earth's surface.

mining method used on wide ore bodies - rbriti.in

Hardrock Mining TechniquesUnderground MinesMinings Method. Underground hard rock mining refers to various underground mining techniques used to to an ore body. mining is a method of short hole mining used in

Mining method selection by multiple criteria decision ...

Mining method selection by multiple criteria decision making tools by M.R. Bitarafan and M. Ataei* Synopsis Mining method selection is the first and most important problem in mine design. In this selection some of the parameters such as geological and geotechnical properties, economic parameters and geographical factors are involved. The mining engineer must balance the input parameters and ...

Mining ppt 2014 - SlideShare

Caving Method:- It comprise of following techniques:- A. Top Slicing:- The method is used where wide veins or massive ore bodies are worked, when clean ore and high% of recovery is required. It is used when both roof and ground surface need not required any support. The ore is mined in horizontal surface,comprising S1, S2 S3 S4 . When each slice is completed the roof isallowed to cave in.

Underground mining techniques - Universidade Federal do ...

trackless mining to ore bodies where dip is too steep for rubber- tired vehicles. A special "angle" orientation of haulage drifts and stopes related to dip creates work areas with level floors. This allows trackless equipment to be used in drilling and mucking. Mining advances downward along the step room angle. Classic Room-and-Pillar Mining. In classic room-and- pillar mining, only a minimum ...

Ore Body Modelling- Concepts and Techniques | Pranav ...

Ore body Modelling Concepts and Techniques DR. SURESH PANDEY [email protected] +91-9534062256 Ore body Modelling-Concepts and Techniques 1. Introduction A key point in the design and operation of a mine is the construction of what is called an ore body model. The proper description of an ore body is the foundation upon which follow up mine decisions are taken. An ore body …

Mining - Wikipedia

Mining is the extraction of valuable minerals or other geological materials from the earth, usually from an ore body, lode, vein, seam, reef or placer deposit.

mining methods impact backgrou

3 During the exploration process, geoscientists will use several methods to find suitable locations and determine the depth and shape of the ore body.

Cut and fill - QueensMineDesignWiki

Mining Methods, Surface Mining Methods, Mechanical and aqueous surface mining methods Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. If you continue browsing the site, you agree to the use of cookies on this website.

geology - How do geologists find ore deposits? - Earth ...

Many methods used a century ago are still in use, but with the addition of refinements. So looking at how large and small deposits were found will change over time. (Simple example of that would be that Romans and their contemporaries didn't use geophysics, but they did find major copper deposits in Spain.) Deposits are getting harder to find. It has been estimated that

mining method used on wide ore bodies – Grinding Mill …

mining | Britannica. When evaluating mineral deposits, it is extremely important to keep profit in mind, Obviously, the opposite is also true, and a mine may cease production because (1) the mineral is exhausted or (2) the prices have dropped or costs risen so, This method of constructing an ore body is widely used where the boundaries ...

Underground Mining Methods and Equipment

2. Strength of the hanging wall, footwall, and ore body. 3. Economic value of the ore and grade distribution within the deposit. The selection of underground mining methods is primarily based on the geological/spatial setting of the deposit. Candidate methods can therefore be chosen and ranked based on estimated operational/capital costs, production rates, availability of labors and materials ...

Mining | Britannica.com

This method of constructing an ore body is widely used where the boundaries between ore and waste are sharp and where medium to small deposits are mined by underground techniques, but, in the case of large deposits mined by open-pit methods, it has largely been replaced by the use of block models.

Newmont Mining - Mining Education - The Mining Process

Finding new mineral reserves is critical to the success of our company. Locating, extracting and processing these natural resources is a multiyear process that involves complex scientific, environmental and social planning.

Underground mining (hard rock) - Wikipedia

Underground hard rock mining refers to various underground mining techniques used to excavate hard minerals, usually those containing metals such as ore containing gold, silver, iron, copper, zinc, nickel, tin and lead, but also involves using the same techniques for …

Lead and Zinc - Department of Energy

The use of underground or surface mining techniques depends on the proximity of the ore body to the surface and the individual characteristics of each ore body determine the exact mining method.

Surface Coal Mining Methods in Australia - InTech - Open

surface of the ground and the ore body itself are relatively horizontal and shallow and where a wide area is available to be mined in a series of strips (Westcott, 2004). Table 2 provides some examples of the Australian surface coal mines. Figure 3 illustrates a typical overall mining sequence of strip mine operation. Mining method description Example mines Multiple seam, steep dip, truck and ...

Basic Gold Prospecting & Exploration Methods

The time depends on ore body size, diamond core diameter required, geology department and the previous information obtained at the beginning of the project. For instance, if the objective is to have complete information on mineralization and perform metallurgical tests (e.g. comminution, concentration, leaching), the time required is around eight weeks. Obviously, there are several activities ...

Methods of Mining Metals

describe the characteristics of the ore deposits that governed the selection and application of the mining methods employed in each case, describe the methods and practices employed, and present the costs of mining under the described conditions by the methods used, thus giving a complete picture.

Open-Pit Mining Methods

Open-pit mining methods are applicable to mining ore deposits that apex at or near the surface. If the deposit apexes below the surface, the overburden and barren capping overlying the ore must be removed in advance of open-pit mining. The removal of this material is known as stripping.

Mining - Massachusetts Institute of Technology

In-Situ Leach (ISL) Mining: Some ore bodies, due to ore concentration or the surrounding material, can only be accessed by dissolving the ore body using water soluble acids or alkalis and then pumping out the solution. The ore body is then recovered as a precipitate. This method is common when extracting minerals near aquifers. It is also used if ores are not locally concentrated but spread ...

Mining of Iron Ores | ispatguru.com

The most predominant surface mining methods used for mining of iron ores are open pit mining methods and open cut mining methods. However a few underground iron ore mines are also in operation around the globe. The decision for employing surface mining or underground mining is dependent on the proximity of the ore body to the surface. Open pit and open cut mining are the …

b Top slicing These systems are widely used in the …

87 The system is commonly used in working thick deposits, from 6-8 m and thicker. Small thickness ( from 3-4 to 6-8 m ) is no obstacle to using the method, but it increase development work, the losses and dilution of ore.