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Rocks formed by crystallization from a melt (magma).
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∙ 12y ago
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What role does weather and erosion have in the change of igneous rock to sediment?
Clastic sedimentary rocks are formed by the weathering, erosion, deposition, compaction and cementation of other rocks. Chemical sedimentary rocks however may be precipitated directly from saturated solutions (examples incldue the evaporitic rocks and certain types of carbonates such as oolitic limestones). Some other sedimentary rocks may be biogenic in origin (such as the linmestones that are formed of coral reefs).
Which party will lead the formation of the next government of India and what was a key strength of the previous government?
Agar Jan
Why are fossils formed in sedimentary rocks but not in igneous rocks?
Because sedimentery rock is formed under the sea, sediment collects at the bottom of the ocean, and so does a few dead sea creatures, then t gets squashed by other sediment, igneous rock is formed by lava cooling, so there is no fossils in it.
What factors lead to state formation in the interlacustrine regions in central Africa?
Interlacustrine means situated between lakes or bodies of water. This led to state formation in Africa because much of Africa is water-less. The water enabled people to band together and form communities.
What is a type of sedimentary rock formed by the precipitation of minerals dissolved in a lake river or seawater?
sedimentary rock formed by the denudational process of various activity. the sediments in sea water may deposited and thus lead to the formation of sedimentary rock
What processes lead to the formation of igneous rock?
Melting and solidification!
What processes lead directly to the formation of igneous rock?
Melting and solidification!
What condition lead of the formation of large crystals in an igneous?
Igneous rocks will develop large crystals is they cool slowly underground.
What conditions lead to formation of large crystals in an igneous rock?
Igneous rocks will develop large crystals is they cool slowly underground.
What conditions lead to the formation of large crystals in an igneous rock?
Igneous rocks will develop large crystals is they cool slowly underground.
Slow cooling of hot magma lead to the formation of what crystals?
large crystals
What is a factor governing nucleation?
In igneous rock formation, the viscosity of magma can govern nucleation. If atoms are mobile in a fluid magma, they are free to nucleation. If the magma is viscious and doesn't flow, then atoms can't move to the nucleation site. Poor nucleation and rapid cooling can lead to a glassy texture in igneous rocks.
Explain the four processes of cooling that can lead to cloud formation?
Clouds form when water evaporates, travels up the atmosphere, cools and then condenses.
How do subduction zones lead to the formation of volcanic activity?
Subduction zones lead to the formation of volcanic activity because the water combined with crust and mantle material lowers the rock's melting point temperature, causing the rock to melt and produce magma, which then creates volcanic activity.
What is the sub discipline of determining the melting point of lead?
The melting point of lead is 327,46 0C.
Is melting of lead a chemical reaction?
No, like all melting it is physical.
Which has the lowest melting point Gold silver copper or lead?
Lead, because it has a melting point of 327 degrees Celsius.
