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Processes

Hornblende andesite an example of rock from intermediate magma or lava
Home » Geology » Processes

Understanding Intermediate Magmas and Lavas

To understand intermediate magmas and lavas well and their characteristics, you need to know their composition lies between mafic and

Categories Volcanology
Solar radiation from sun causes insolation or thermal expansion weathering
Home » Geology » Processes

Insolation or Thermal Expansion Weathering

Insolation or thermal expansion weathering refers to rock breakdown that happens when rocks contract and expand. Some authors call it

Categories Weathering
Tidal waves can cause wetting and drying weathering
Home » Geology » Processes

Slaking or Wetting and Drying Weathering

Wetting and drying or slaking is an example of mechanical or physical weathering. It occurs when rocks exposed to the

Categories Weathering
Granite, a common magma formed from felsic magmas
Home » Geology » Processes

What Are Felsic Magmas and Lavas

Felsic magmas and lavas are proportionately higher in lighter elements like oxygen, silicon, aluminum, sodium, or potassium and lower in

Categories Volcanology
Mafic magmas and lavas - pahoehoe
Home » Geology » Processes

A Guide to Mafic Magmas and Lavas

Mafic magmas and lavas are the most common on Earth. The other relatively common ones are intermediate and felsic. Lesser

Categories Volcanology
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