Australian Gold Mining Involves Several Steps
Many mining companies in Australia tend to follow the following steps to extract gold from the earth surface. As technology and processes improves more and more mining techniques are being discovered to make the work simple.
Geological Mapping Areas for Gold:
This mapping is done by using the photographs of the geographical area where gold is presented.
Identification of Gold Bearing Zones:
This step is carried out by collecting the sample stones from the favorable places and it will be sent for gold mineralization. If the rocks are uncovered then some geochemical methods like stream sediment and soil sampling will be used to find the gold anomalous areas. Based upon the results of the sampling the target areas will be fixed for the further process.
Pre-feasibility exploration:
Based upon the result of global resource estimation, further process will be taken place by using “Close Spaced Diamond Core Drilling” along with the dip and sampling of ore body to improve the reliability. This also helps to predict whether the deposit is mineral or not.
Feasibility Exploration:
This involves additional extensive sampling on the earth surface and underground by using closed space drilling, bench cutting and bench sampling etc. to extract gold. And the “Sluice Box” will be used to filter the extract gold from placer deposits. Then the filtered particles will be sent for further process.
Three Dimension Sampling:
This sampling method is carried out by using two types of drilling. They are Reverse Circulation (RC) and Diamond Core Drilling. The RC drill is easily movable and the sample rock is obtained in the form of chips but in the diamond core drilling the sample is obtained in the form of solid core.
Estimation of Global Resource:
Based upon the previous step result (i.e.) length, width, depth, etc. a global resource of the gold deposit is estimated.

