Heat Flow in the Earth

January 21, 2019 admin 0

Within Earth systems the transfer of thermal energy, or flow of heat, is especially important and is therefore considered further here. Movement of thermal energy […]

Intrusive and Extrusive rocks

January 21, 2019 admin 1

Intrusive rocks, which are also called plutonic rocks, are igneous rocks formed from magma forced into older rocks at depths within Earth’s crust. The intruded […]


Volcanic Necks and Pipes

October 5, 2018 admin 0

Figure – Shiprock, New Mexico, is a volcanic neck that stands about 520 meters (1700 feet) high In most volcanic eruptions, lava is fed through […]