-
Home
| Where
to Find
Rocks | Field
Equipment | Home
Tools | Organise
Your Collection | Storage
and Display | Field
Safety | Blog
Formation of Metamorphic Rocks
Formation of metamorphic rocks
is different from from the other rock types.
While sedimentary rocks form from sediments and igneous rocks form from lava or magma - metamorphic rocks form from igneous, sedimentary, or other metamorphic rocks.
As the word "metamorphism" says, it is a change from one rock to another, without the first rock turning into magma or sediments in between.
There is no melting, it is a solid state process.
As igneous, sedimentary, or metamorphic rock is pushed deeper and deeper down to the interior of the Earth, temperatures and pressures increase. The rock is also experiencing different kind of stress which makes it foliated.
These new conditions make the minerals in the rock unstable. When a mineral gets unstable, chemical reactions will happen, where a mineral turns into another, more stable mineral in the new conditions.
As the conditions change, gradually the minerals in the rock change, which turns the rock into a new rock.
If temperatures rise to a point where the rock melts and turns into magma, igneous rock is formed.
As long as the rock stays solid, this is a metamorphic process and metamorphic rock is formed.
Custom Search
What's New
About Us
About Using Content
PHOTOS
MAKE MONEY BUYING AND SELLING GOLD!
CRYSTAL HEALING
[?] Subscribe To This Site
Home | Site Map | Site Search | Site Policies | About Us | Contact Us
This site uses British English, which is the English we use in Australia.
Disclaimer:
Although
best efforts have been made to ensure that
all the information on this
site is correct,
collecting-rocks-and-minerals.com is not to be blamed should there be a
mistake.
Copyright notice:
All contents of this website are strictly protected
by the Law of
Copyright. What does that
mean?
Copyright 2010-2021 collecting-rocks-and-minerals.com. ALL RIGHTS RESERVED.