The correct answer is: d) All of the above.
Geological mapping is the process of creating a detailed map of the geology of an area. This can be done by surveying the area and collecting data on the rocks, minerals, and other features present. Geological mapping can help to identify areas where minerals are likely to be found.
Geophysical surveys are used to measure the physical properties of the Earth’s surface. This can be done using a variety of methods, such as seismic surveys, gravity surveys, and magnetic surveys. Geophysical surveys can help to identify areas where minerals are likely to be found.
Drilling is the process of creating a hole in the Earth’s surface. This is done using a drill bit, which is a rotating tool that cuts through the rock. Drilling is used to collect samples of rock and mineral deposits. Drilling can also be used to extract minerals from the Earth.
All of these methods are used in mineral exploration. The specific methods used will vary depending on the type of mineral being sought and the geology of the area.