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Author Question: The rock pumice often floats yet the density of the rock is greater than water. Why does it float? (Read 74 times)

fox

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on: Feb 28, 2020

Question 1

Which of the following is considered pyroclastic debris?
◦ aa
◦ volcanic ash
◦ water vapor
◦ pahoehoe

Question 2

The rock pumice often floats yet the density of the rock is greater than water. Why does it float?
◦ Pumice is a rock made of rhyolite glass that erupts into water, which traps water in voids and makes the material less dense than water.
◦ Pumice is a pyroclastic rock derived from rhyolite glass, and rhyolite glass has a lower density than water.
◦ Pumice is a pyroclastic rock comprised largely of open voids formed by gases released when the magma solidified as froth-like material.
◦ Pumice is another name for dacite, a low-density rock that floats in water.
Earth Science ¦ Tarbuck, Lutgens, Tasa ¦ 15th Edition
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Marked as best answer by fox on Feb 28, 2020

voltaire123

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Reply #1 on: Feb 28, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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fox

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Reply 2 on: Feb 28, 2020
Wow, this really help

amcvicar

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Reply 3 on: Yesterday
Excellent

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