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Pillow lavas are formed when lava is emitted from the earths crust under water. The outer layer cools rapidly and hardens while the inside remains soft. A round pillow like ball of malleable rock is forme...
A mass extinction is a large decrease in the number of species over a relatively short period of time (several millions of years). The most likely cause of this species decline i...
As grains get larger, they require more energy from the transport medium to erode away.Larger grains are deposited at higher energies than smaller grains because they require an even greater amount of ene...
When hot magma rises towards the surface and cools, iron particles, inside the cooling rock, align themselves with the earth's polarity at the time of cooling. Due to magnetic reversals, that change the o...
The thermal history of a sedimentary basin, where hydrocarbons and coals form, plays a crucial role in controlling the formation of economic deposits of hydrocarbons and ...
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