Which of the following is not an essential condition for hydrothermal deposits?

The deposits occurring close to the roofs of magmatic masses _________

The definition of ore is dependent on __________

When gravity is the agent of placing of deposit, the deposit is called _________

Magmatic ore deposits do not commonly occur in forms of injective.

The deposits that have formed simultaneously with the enclosing rock are called _________

The non-metallic minerals associated with ore minerals are called _________

Gash-veins are generally found in _________