Distinguish between rhyolite tuff and welded ...

[imanialler]

Distinguish between rhyolite tuff and welded tuff.

Question 2

The Archean atmosphere can best be described as ____.
 A)oxygen-rich
 B)nitrogen-rich
 C)ozone-rich
 D)oxygen-deficient
 E)rich in carbon dioxide

[Eunice618]

Answer to Question 1

Most tuff is silica rich, light colored, and is called rhyolite tuff. However, some ash flows are so hot that as they come to rest, the ash particles fuse together and form a welded tuff.

Answer to Question 2

D

[imanialler]

Thanks for the timely response, appreciate it

[kusterl]

YES! Correct, THANKS for helping me on my review