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Why sedimentary rocks could not have been the first rocks on earth?
Wiki User
∙ 13y ago
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.
Wiki User
∙ 13y ago
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What percentage of rocks on earth are sedimentary?
Sedimentary rocks are the most common types of rocks that cover the earths surface because they are layered rocks. Approximately 65% of the rocks are sedimentary.
What percent of rocks on earth are sedimentary?
8%
How does the volume of sedimentary rocks in Earth's crust compare with the volume of igneous rocks in the crust?
75% Igneous 5% Sedimentary
Which is older igneous or sedimentary?
Neither. You can get sedimentary rocks that are older than igneous rocks, or igneous that are older the sedimentary rocks. However, igneous rocks are formed from magma within the earth's crust, or as it extrudes onto the surface, while sedimentary rocks are formed from the erosion and redeposition of existing rocks, so generally in the life cycle of a rock the igneous form would come first.
What are the the three classes of rocks?
There are three types of rock on the face of the Earth. The three rocks are sedimentary, metamorphic, and igneous.
How do you change sedimentary rocks into metamorphic rocks?
Sedimentary rocks could become metamorphic rocks if they are exposed to extreme heat and pressure deep in the Earth's crust. The rocks could come to the surface by volcanic activity or rising magma.
Why there were no sedimentary rocks when the earth was first formed?
Sedimentary rocks are the result of weathering, and erosion of other rocks within the rock cycle and from the death and deposition of organic material. As the earth did not have an atmosphere as it first began to form, it had no rivers, no weather and no life. Therefore all of the processes required to produce sedimentary rock were absent.
What percentage of rocks on earth are sedimentary?
Sedimentary rocks are the most common types of rocks that cover the earths surface because they are layered rocks. Approximately 65% of the rocks are sedimentary.
What are the kinds of earth rocks on earth?
The kinds of rocks on earth are Igneous, Sedimentary, and Metamorphic.
Which type of rock is where fossils are found?
They are mostly found in Sedimentary Rocks
Why there are no sedimentery rocks on earth crust?
The Earth's crust does have sedimentary rocks in it's structure - limestone, slate, chalk, are three examples of commonly found sedimentary rocks.
How many rocks are on the earth?
the three major rocks are igneous, sedimentary, and metamorphic rock. igneous- volcanic rocks sedimentary- rocks with layers on top metamorphic- rocks that formed to another rock
What percent of rocks on earth are sedimentary?
8%
The orgin of sedimentary rocks?
Sedimentary rocks come from the deposition of material at the Earth's surface and within bodies of water.
Do sedimentary rocks come from the center of the earth?
No. Sedimentary rocks form relatively close to the surface. No rocks that we have access to come from the planet's center.
Which came first sedimentary igneous metamorphic rocks?
Metamorphic rock would probably have been the first rock type formed after the initial formation of the first igneous rock. Sedimentary rock formation relies on weathering and erosion, whereas metamorphic rock can be created by heat and pressure. It's likely that rock was metamorphosed before weathering existed .
How many rocks did you classify as sedmentary?
sedimentary rocks are those which have been eroded from the earth and have had layers of mud and other rock put ontop of them, these then could create fossils. Some sedimentary rocks are such as limestone, mudstone, slate and marble.
