Or better yet where is it and when was the eruption????
2007-09-17 16:01:00 · 8 answers · asked by ? 3 in Science & Mathematics ➔ Earth Sciences & Geology
No, I meant the big boulder that was belched out, landed several miles away and was so hot that its still cooling off...It was not part of a lava flow, it was a big damn rock that was launched out during the eruption...
2007-09-17 16:20:19 · update #1
Minus,
Thank you for taking up space on the list of answers to my question. Indeed, there might me a rock like the one I described, and there might not. I do however know enough about volcanoes to know that lava and magma need not be present in an eruption. St Helens for example. Lots of dirt and rocks and ash, but no lava, at least on the surface. I did a small amount of research but didn’t find anything. That’s why I posted the question. I did not post it, however, to be insulted by faceless beasts.
2007-09-17 20:16:50 · update #2
The only term I have heard for large volcanic ejecta is a "bomb". I don't know if this fills your requirement or if it can be filled, but that is the term geologists use.
2007-09-18 03:19:32 · answer #1 · answered by Amphibolite 7 · 1⤊ 0⤋
I checked briefly but didn't find any particular rock that has been cooling for years but is still very hot.
There might be such a rock some place. You also might not understand volcanoes very well. I think you should read about volcanoes and then see if you find the particular rock you are thinking about.
Magma is molten rock inside the volcano
Lava is what flows from the volcano. as molten rock. There is a lot more happening so read please
2007-09-17 16:26:57 · answer #2 · answered by Anonymous · 0⤊ 0⤋
obsidian is actually volcanic rock that cooled quickly. The glassy look of it is because the minerals cooled before they were able to form large crystals. The bigger the crystals, the longer the rock took to cool.
Rock cools fairly quickly. When it's in the ground it's called magma and when it's on the surface it's called lava.
There is magma in the ground that is pushed toward the surface but never makes it out. This rock cools slowly in the earth.
2007-09-17 16:19:52 · answer #3 · answered by Gwenilynd 4 · 1⤊ 0⤋
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2016-05-17 10:08:22 · answer #4 · answered by ? 3 · 0⤊ 0⤋
It is called obsidian. Obsidian can be found in many locations around the world which have experienced rhyolitic eruptions. Among other places, large obsidan flows are found within the calderas of Newberry Volcano and Medicine Lake Volcano in the Cascade Range of western North America, and at Inyo Craters east of the Sierra Nevada in California. Yellowstone National Park has a mountainside containing much obsidian located between Mammoth Hot Springs and the Norris Geyser Basin, and deposits can be found in many other western U. S. states including Arizona, Colorado, Texas, Utah, and Idaho. Obsidian can also be found in Armenia, Turkey, Italy, Mexico, Greece and Scotland.
2007-09-17 16:10:10 · answer #5 · answered by Anonymous · 2⤊ 1⤋
Rebecca is right. theres igneous rock, metamorphic rock and sedamentary rock. good luck and best wishes. Igneous rock formed by cooling and hardening of magma. magma is hot melted rock inside the earth, lava is magma, that pours onto earths surface during a volcanic eruption.
2007-09-17 16:11:53 · answer #6 · answered by Gladys C 5 · 0⤊ 1⤋
Magma rock is what is ejected from volcanos.
2007-09-17 16:08:47 · answer #7 · answered by askerwatt 3 · 1⤊ 2⤋
i am pretty sure it is called an Igneous Rocik
2007-09-17 16:10:00 · answer #8 · answered by Anonymous · 1⤊ 2⤋