What are petrogenetic processes?
Petrogenesis, also known as petrogeny, is a branch of petrology dealing with the origin and formation of rocks. While the word petrogenesis is most commonly used to refer to the processes that form igneous rocks, it can also include metamorphic and sedimentary processes, including diagenesis and metamorphic reactions.
What is a magmatic system?
The magmatic processes they record include melting in the mantle, transport to within the volcano, cooling and crystallization, assimilation of surrounding rocks, magma mixing, and degassing.
What does petrogenesis mean?
noun. the branch of petrology dealing with the origin and formation of rocks. the origin and formation of rocks.
What are the 3 processes of magma formation?
There are three principal ways rock behavior crosses to the right of the green solidus line to create molten magma: 1) decompression melting caused by lowering the pressure, 2) flux melting caused by adding volatiles (see more below), and 3) heat-induced melting caused by increasing the temperature.
What is the difference between petrology and petrogenesis?
As nouns the difference between petrology and petrogenesis is that petrology is (geology) the study of the origin, composition and structure of rock while petrogenesis is the branch of petrology dealing with the origin of igneous rocks.
Which type of magma is more explosive?
Pyroclastic material can make up over 50% of the volume of a stratovolcano. Lavas and pyroclastics are usually andesitic to rhyolitic in composition. Due to the higher viscosity of magmas erupted from these volcanoes, they are usually more explosive than shield volcanoes.
What are the main endogenic processes?
Endogenic processes include tectonic movements of the crust, magmatism, metamorphism, and seismic activity (seeTECTONIC MOVEMENT; MAGMATISM; and METAMORPHISM). Under the influence of the heat flow or under the direct influence of the heat carried by rising abyssal magma, magma chambers form in the crust itself.