Fandom

Wikianswers

Welcome! Enter your question below. Please use words like "Who, What, Where, When, Why, How, etc..." in your question. Nothing to ask? Click here for a random, un-answered question.

How do volcanic and plutonic textures differ?

1,033,092questions on
Wikianswers
Add New Page
Talk0 Share

Ad blocker interference detected!


Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.

Depends on the exact situation. But a granular texture (minerals clearly visible and identifiable in an optical microscope, if not to the naked eye) would usually suggest a plutonic origin. A very fine-grained, or even glassy, groundmass is typically volcanic - such rocks can have larger phenocrysts, which formed in a magma chamber prior to eruption.

Also on Fandom

Random Wiki