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GEOLOGY > Magma > Flashcards

Magma Flashcards

1
Q

A mixture of molten rocks

A

Magma

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2
Q

Temperature of magma

A

700-1300

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3
Q

Magma formation

A

Melting of the upper mantle or and lower crust

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4
Q

Heat is comming from the hotspots

A

Increasing temperature

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5
Q

Flux melting

A

Addition of volatiles

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6
Q

Where flux melting happens

A

Subduction zones

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7
Q

Found in divergent plate

A

Decompression melting

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8
Q

Provess where magma can produce different number of igneous rock composition

A

Magma differentiation

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9
Q

Melting of the country rock

A

Assimilation

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10
Q

Mixing of two or more magma

A

Magma mixing

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11
Q

Process of crystallizinf and removing minerals from the magma

A

Fractional crystallization

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12
Q

Discontious series of bowens reaction series

A

Olivine
Pyroxene
Amphibole
Biotite

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13
Q

Continous series

A

Anorthite
Bytownite
Labradorite
Andesite
Orthoclase
Albige

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14
Q

Have high gas content

A

Rhyolitic

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15
Q

Felsic

A

Rhyolitic

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16
Q

Most explosive

A

Rhyolitic

17
Q

Raryly explosive

A

Basaltic

18
Q

Have least silica content

A

Basaltic

19
Q

Have high silica content

A

Rhyolitic

20
Q

Highest meling temperature

A

Basaltic

21
Q

It refers to molten state of the magma

A

Melt

22
Q

One its is close to the original composition and did not undergone fractional crystallization

A

Primary melt

23
Q

The processes magma

A

Parental melt

24
Q

Minerals with lower melting points turn into miquid magma, those who have higher melting point remains as a crystal

A

Partial melting

25
Q

Rocks that are produced by partial melting

A

Alkaline, potassic, peralkaline

26
Q

magma cools and minerals start to solidify and form igneous rock

A

Magma cooling

27
Q

Magma rises when it is less dense than the surrounding rock or the structure allows it

A

Magma migration

28
Q

Low degrees of partial melting of the crust may create

A

Pegmatite

29
Q

melting point lower than its chemical components

A

Eutectic

30
Q

two or more solid phases crystallize simultaneously without resorption from a liquid

A

Cotectic

31
Q

Elements that are too large or too highly charged to fit easily with common minerals.

A

Incompatible elements

32
Q

Elements that easily fits into minerals

A

Compatible elements

33
Q

Temperature of basaltic magma

A

1000-2000

34
Q

Temp of andesitic magma

A

800 to 1000

35
Q

Temp of rhyolitic magma

A

650-800

GEOLOGY (4 decks)

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