Microscopic evidence reveals how cooling magma chambers were recharged by fresh volcanic injections 2.5 billion years ago to ...

Q: Is all volcanic magma the same temperature? A: The temperature of magma inside a volcano — and of lava as it emerges — is highly variable and depends in part on the chemical composition of the ...

Within the deposits of extinct volcanoes around the world, a mysterious magma may be Earth’s new source for rare metals. This iron-rich magma could be full of the metals that help power some of the ...