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What was the geology like during the Permian period?
Many of earth's marine invertebrates were extinct, and many other species that had evolved on earth were extinct as well, so basically the ecosystem was "rebuilding" after the Permian mass-extinction.
What geological period has the oldest terrestrial insect fossils found in rocks?
Devonian Period
Magma that is rejected during a volcanic eruption forms igneous rocks?
Magma that is ejected during a volcanic eruption forms extrusive igneous rocks. They are also referred to as volcanic rocks.
Are all rocks formed by volcanoes?
no not all rocks are formed by volcanoes because what about sedimentary rocks which are the rocks formed over a long period of time by little pieces of sand and rock etc. by wind and water
How quick does extrusive igneous rocks cool?
Intrusive igneous rocks cool slowly. These types of rocks would be located underground having long period of time to cool.
What did they use the weapon for during the tertiary time?
Spears, hatchets and rocks.
What is tertiary level in physical education?
I-E1 rocks! :D
What was the geology like during the Permian period?
Many of earth's marine invertebrates were extinct, and many other species that had evolved on earth were extinct as well, so basically the ecosystem was "rebuilding" after the Permian mass-extinction.
What do sedimentary rocks preserve?
Sedimentary rocks preserve a record of the environments that existed when they formed.
What happens to rocks during the day?
during the day the rocks expand
Why did the engineers not consider the weathering rates of different rocks when they were building st pauls cathedral?
Because they didn't know about weathering during thAt period of time...
Do rocks grow in weight after a 10 year period?
Rocks on Earth's surface would lose weight over a ten year period due to erosion.
What geological period has the oldest terrestrial insect fossils found in rocks?
Devonian Period
What is the meaning of paleozoic?
Of or pertaining to, or designating, the older division of geological time during which life is known to have existed, including the Silurian, Devonian, and Carboniferous ages, and also to the life or rocks of those ages. See Chart of Geology.
What is the earliest record of mammals in rocks?
The Jurassic Period.
Why can't we find rocks from the Hadean period?
Earth's temperature was too high for solid rocks to form.
What can the orientation of a rocks magnetic field can tell you?
The orientation of a rocks magnetic field can tell you it's relative age.
