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Author Question: Distinguish between rhyolite tuff and welded tuff.[br][br][b][color=#A83E49]Question ... (Read 59 times)

imanialler

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on: Jul 13, 2018
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


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Eunice618

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Reply #1 on: Jul 13, 2018
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

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Reply 2 on: Jul 13, 2018
Excellent

Sarahjh

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Reply 3 on: Yesterday
Wow, this really help

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