These are formed when either igneous or sedimentary rocks are changed. Heat and/or pressure will cause the elements in the original rock to react and re-form. Metamorphic rocks are highly ...

It depends on what the rocks are made of – and that’s related to how they were formed. There are three main rock types: igneous, sedimentary and metamorphic. These rocks are made of minerals ...

Geologists have long struggled to understand massive time gaps in Earth’s rock record, where millions—sometimes billions—of ...

The Satpura range is formed by a series of scarped plateaus ... which can be corroborated by the presence of metamorphic rocks such as marble, slate, gneiss, etc. The general elevation of the ...