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Why can't geologists use rocks from earth to learn how long ago earth formed?
Because all of the rocks that were around when Earth formed have been recycled by plate tectonics and erosion. Hoped I helped!!
Does the Earth have Moon rocks?
Rocks were brought back to the Earth from the various Moon landings the Americans undertook. No other rocks from the Moon are on Earth. The Moon was formed from the Earth - so, if anything, there are Earth rocks on the Moon.
What are the kinds of earth rocks on earth?
The kinds of rocks on earth are Igneous, Sedimentary, and Metamorphic.
Is magma the source of all rocks on earth?
No, while all rocks on Earth were molten at one point, most rock types do not form from magma. Rocks that form from magma or lava are igneous rocks. Most of the rocks at Earth's surface are sedimentary. These rocks form from the remains of rock that have been broken own into tiny pieces or dissolved in water. These components eventually settle, usually in a body of water, and are buried and turned to stone. Metamorphic rocks make up a third category. These form from rocks that have been altered under enormous heat and pressure while remaining solid.
Some of the oldest rocks ever found have been estimated to be about 3.5 billion years old. Is it likely that these rocks were present when Earth was first formed?
No, rock material is constantly recycled on Earth as rock is melted into magma.
Why sedimentary rocks could not have been the first rocks on earth?
water is needed, and long periods of deposit of sediment at the bottom, to form the sedimentary rocks. A hot, molton earth could not have created such rocks.
Why can't geologist use rocks from earth to learn how long ago earth formed?
Because all of the rocks that were around when Earth formed have been recycled by plate tectonics and erosion. Hoped I helped!!
Why can't geologists use rocks from earth to learn how long ago earth formed?
Because all of the rocks that were around when Earth formed have been recycled by plate tectonics and erosion. Hoped I helped!!
How can rocks show that changes take place on earth?
It helps them know how long the rock has been on earth and how the climax was in the rock.
How would present day animals and rocks on different continents compare since the continents have been separated for a long time?
Present day and animals and rocks on different continents compare the been separated for a long time by scientist examines rocks to find out about earth's history and structure
Where and when did toys first appear?
every since rocks came 2 earth along with mud pies
What were the first kind sof rocks on Earth's surface?
The initial rocks (apart from those direct from bolides) would have been volcanic rocks derived from the magma. This would have been in the late Hadean period of the Earth's history.
Why can't geologists use rock from earth to learn how long ago earth formed?
Because all of the rocks that were around when Earth formed have been recycled by plate tectonics and erosion. Hoped I helped!!
What was the gas in Earth's early atmosphere that was chemically converted or trapped in the rocks?
Oxygen was trapped in rocks in the very early days of earth. These rocks are known as "banded rocks". It took a long time before the oxygen was let out of the rocks.
What pieces of other planets have been found on earth?
rocks
How long has archaebacteria been on earth?
how long has archaebacteria been on earth? how long has archaebacteria been on earth?
Were rocks been changing since the beginning of the earth's creation?
Yes.
