Explore BrainMass
Share

Using volcanic deposits to identify volcanoes

This content was STOLEN from BrainMass.com - View the original, and get the already-completed solution here!

Volcanoes are generally not preserved in the geologic rock record as they are eroded away. However, the various materials erupted from volcanoes are often found preserved in the rock record. How could you infer what type of volcano erupted in a given area based on the type of volcanic deposits now found as layers of rock? Give specific examples and briefly discuss if some materials may be linked to different types of volcanoes

© BrainMass Inc. brainmass.com October 24, 2018, 8:47 pm ad1c9bdddf
https://brainmass.com/earth-sciences/natural-hazards/using-volcanic-deposits-to-identify-volcanoes-107896

Solution Preview

There are essentially four types of volcanoes:
Shield volcanoes which are common at oceanic hot spots.
Stratovolcanoes (or composite) volcanoes are common along convergent margins.
Cinder cones form by collection of cinders (bombs) around fountaining vents.
Lava (or silicic) domes are formed by viscous lavas.

Note that where mantle is melting, the magma will be low in silica (eg ocean ridges, ...

Solution Summary

Using volcanic deposits to identify volcanoes

$2.19
See Also This Related BrainMass Solution

Glossary of Volcanic and Geologic Terms: A to Z with definitions.

For study purposes, can you provide me with a glossary of volcanic and geologic terms with definitions provided?

View Full Posting Details