0
What else can I help you with?
A coarse-grained rock and a fine-grained rock probably had different what?
Methods of formation. If crystalline (igneous or metamorphic) they would most likely have had differing rates of cooling. If sedimentary, they would most likely have had differing depositional environments (higher energy for larger grain sizes).
What igneous rock would form from the magma if it did not reach the surface but instead crystallized at great depth?
If magma does not reach the surface and instead crystallizes at great depth, it forms an intrusive igneous rock called granite. Granite is coarse-grained and typically composed of minerals such as quartz, feldspar, and mica. It forms slowly over millions of years beneath the Earth's surface before being exposed through erosion.
How do coarse-grained rocks form?
They form very slowly at a great depth
How do two igneous rocks have the same mineral composition but different textures?
The texture of an igneous rock refers to the size of its mineral crystals. If the common magma of both igneous rocks has experienced differences in cooling rates due to depth, they will have different textures. Slow cooling produces large crystals, and quick cooling produces small crystals. Granite and rhyolite are two igneous rocks sharing the same mineral composition, but having undergone different rates of magma cooling due to depth at solidification.
Would new igneous rock be formed if Earths temperature did not increase with depth?
No, new igneous rock forms from the melting of pre-existing rock due to an increase in temperature with depth. If Earth's temperature did not increase with depth, there would not be enough heat to melt rocks and form new igneous rock.
What rock would probably form if magma that was feeding volcanoes above subduction zones solidified at consideration depth?
A type of rock that would likely form from magma solidifying at considerable depth beneath subduction zones is basalt. Basalt is a common igneous rock formed from the solidification of mafic magma, which is typical of volcanic activity at subduction zones. It is fine-grained and commonly found in the oceanic crust formed at these zones.
How do igneous become metamorphic?
Through exposure to heat and pressure at depth.
What makes igneous rocks have different Crystal sizes?
The cooling rate of magma/lava determines the crystal size in igneous rocks. Fast cooling results in small crystals or glassy texture (e.g., obsidian), while slow cooling leads to large crystals (e.g., granite). Factors like depth of magma intrusion, presence of water, and pressure can also influence crystal size.
What igneous rock would form from the same magma if it did not reach the surface instead crystallized at depth?
A structure called an intrusion: abatholith (lit., "deep rock") or pluton on a large scale, a boss, dyke or sill in smaller scales and according to form, and usually springing from either a volcano's flanksor froma batholith.
What is a mass of rock formed when a large body of magma cools inside the Earth?
A mass of rock formed when a large body of magma cools inside the Earth is called an intrusion or pluton. These formations are referred to as intrusive igneous rocks and can vary in size and shape depending on the depth and cooling rate of the magma within the Earth's crust.
Are batholiths discordant?
If you mean are they disagreeable to the ear, harsh or structurally uncomfortable, then they could well be. As they are at a considerable depth below the surface of the oceans, such detail is difficult to define
What is an abyssal rock?
An abyssal rock is a form of igneous rock which crystallized at considerable depth in the crust.
