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Volcanology

Vulcanian eruptons
Home » Geology » Processes

Vulcanian Eruptions Description, Examples and Diagram

Vulcanian eruptions are moderately explosive eruptions characterized by intermittent, short-lived explosions of ash-laden, convoluting dense clouds rising high above vents

Categories Volcanology
Strombolian eruptions description and characteristics
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Strombolian eruptions Meaning, Description and Examples

Strombolian eruptions are mildly to moderately explosive eruptions characterized by pulsating or intermitted short-lived, discrete explosions that can go on

Categories Volcanology
Plinian eruptions
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Vesuvian or Plinian Eruptions Characteristics, Formation and Examples

Plinian eruptions, also known as Vesuvian eruptions, are the largest, most explosive, powerful, and catastrophic of all volcanic eruptions. They

Categories Volcanology
Pyroclastic flows or Clouds and Surges
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Pyroclastic flows or Clouds and Surges Guide

Pyroclastic flows, pyroclastic density currents (PDCs), or pyroclastic clouds are dense, ground-hugging, hot gases laden with volcanic debris racing down

Categories Volcanology
Andesite rock froms from fast cooling of andesitic magma
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Andesitic Magma Formation and Eruption

Andesitic magma or lava has an intermediate composition with moderate silica content between 57 and 63 wt. %. Its composition

Categories Volcanology
Magma erupting in Hawaii Volcanoes National Park
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8 Magma and Lava Types and Their Characteristics

Magma refers to hot, molten, or semi-molten rocks under the Earth’s surface, while lava refers to magma that makes it

Categories Volcanology
Hornblende andesite an example of rock from intermediate magma or lava
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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
Granite, a common magma formed from felsic magmas
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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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