Mining Activities In The Open Mine

Open pit is an excavation carried out on the surface of land that is intended to take the materials in the ore minerals in the soil surface. Surface mining is one of two known mining systems, namely the open mines and underground mines. where all the activities or mining activities conducted on or relatively near the earth's surface and the workplace is directly related to the outside world.

Mining the open pit itself is done with several stages of the process of work which includes:

• The Preparation Stage 
• Mining Operations  
• Processing and Marketing 
• Reclamation

* The Preparation Stage

In the preparatory phase of mining activity performed early in the process of extraction or mining of minerals consists of the preparation phase or pre-mining process, and in this activity include: 

Gold Analysis Technical By Chemical

Prior to the processing of gold in the economy of scale necessary step preproduction through in-depth study of various aspects. One study that needs to be done is to test the mineral content of rock ore to be processed. 

The process of analyzing in detail the content of metallic minerals from rock samples taken from the soil in a land that has been in the survey will be a very important mineral content of the metal held in which the function of the activity analysis is to support the production activities in large-scale gold processing. 

One form of assessment activities is the analysis of rock samples to see in detail the content of metals contained in the land which will be held in the processing of economic activity. 

Where rock samples can be tested on a laboratory analysis. And today has many methods of analysis used in viewing the content of metallic minerals contained in rocks, but it all depends on the required results in testing, as well as methods of analysis using polarized light techniques and electron microscopy which is the best analysis in identifying minerals with very modern equipment. 

This method obtained from an analysis of its structure, texture and Mineralogy in specific minerals from rock samples. To get a detailed analysis of the mineral content of rocks need to use the latest analytical techniques such as Fire Assay, Atomic Absorption Spectrometry (AAS), Induced Coupled Plasma (IC), and mass spectrometry. In addition to modern methods of analysis can also be used a simple method by using a chemical solution to see the presence of metallic mineral deposits of gold from rock samples that were analyzed. 

This method is very simple and easy to do and very simple, yet has enough sensitivity to accuracy in view of the metal content of gold in rock samples of minerals.The Fire-Assay analysis is the method of choice for the analysis of precious metals traces in ores. All gold bearing alloys or grains and Sterling Silver alloys are assayed by Fire-Assay techniques

Some of the steps used in the test stages of mineral content of rocks that will be done in a simple way is as follows

How The Metal Detector For Gold

Metal detector is very important for use in a process of finding land that have potential metallic mineral content. Because the metal detector will be able to respond to the presence of a metal or any type conductive or magnetic materials in rocks in the soil.

How does this metal detector can work to identify the various metals is by testing the conductivity of the metal. A target signal is eliminated for unwanted metal such as the remains of iron & steel, pull tabs, bottle tabs and others in the same group, while increasing target signals high conductive metal such as gold along with brass and silver.

Metal detector is also very useful in the search for gold ore, so by using our metal detector equipment with easy to find a gold metal content.Various types of metal detectors at this time has been widely developed by various manufacturers and some manufacturers of metal detector maker also has characterized the search uses a mineral or metal targets.A metal detector is not much of a complex devices. It has three basic parts.

The first is a coil that can come in many forms, a power supply and a control box. The work lies largely in the control box because it is a part of that beats when there is metal around and ticking this is what's causing the metal detector to do its job.In the use of a detection of gold, a soil condition is affecting the operation of metal detectors is where the heavy minerals and heavy soil conditions will cause the electromagnetic field and result in shrinking the primary weakness of a signal on the metal at depth. And a soil in wet conditions allow greater penetration of the main magnetic field, providing better signal coverage on the basis of soil depth. 

These few simple steps that can be used when we will start using a metal detector:

Placer Gold Mining

Placer deposit or placer is an accumulation of the precious minerals formed by the separation of gravity during the sedimentation process that naturally separate due to gravity and assisted the movement of a liquid medium, solid and gas / air. And placer mining is a very important source of potential resources of gold mining. Geologists frequently mention that the placer deposits Alochton. Density concentrations of heavy minerals is dependent on the level of freedom from the source, specific gravity, chemical resistance to weathering duration and mechanism. These types of deposits have been formed in all geologic time, but most of the Tertiary and the present age, is largely the reserve is small and often clustered in a short time because of an erosion. Most of these deposits have low levels of mineral ores but can be mined because of particle-free, easy to work with without destruction; where separation can use a semi-mobile and relatively inexpensive. Mining usually by dredging, which is the cheapest method of mining.

Some Placer Deposits On The Basis Of Ganesa

Mining Processing Operation

After the stage of preliminary exploration is known that the existing reserves have a good prospect with a review of knowledge or more accurate data regarding the depth, thickness, slope, and the spread of reserves in 3-Dimensions (length-width-thick) as well as data on the strength of rock sampling, groundwater conditions, and the spread of the structure, width and slope mines then conducted an exploratory stage in detail or commonly referred to as the exploitation of an activity carried out either in a simple (manual) or mechanical, including excavation, parsing, loading and transportation of minerals. Several phases of mining activities in outline are: