Answered
In Science
Why are there no fossils in a intrusion?
If you mean an intrusion via magma/lava, then fossils would not exist due to the fact that most fossils are found in SEDIMENTARY rock, not IGNEOUS (magma/lava rocks).
Results for: Intrusion
Answered
In Geology
What is intrusive activity?
Intrusive activity is when magma in the mantle or crust starts tocool and crystallize. Igneous rock forms from the crystallization.
Answered
In Volcanoes
What is intrusive volcanism?
When hot molten magma escapes from the Earth's core becoming cooler, and forming hard rocks, we refer to this process as volcanism. Volcanism takes place both above the surfac…e of Earth, as well as beneath its surface. When molten lava escapes the Earth and reaches the surface geologists say that it is extrusive volcanism. When molten magma cools and hardens beneath the surface of the Earth, we say that it is intrusive volcanism. In some cases, molten magma cools and hardens deep beneath the surface of the Earth, far below the crust. When this happens, scientists call it plutonic volcanism. (MORE)
Answered
In Definitions
What does intrusion mean?
An intrusion can be either the act of intruding (an intrusion into his private life) or a thing that intrudes (the excavations were an intrusion on their heritage).
Answered
Is coal intrusive?
No. Coal is a sedimentary rock formed from large amounts of plant remains being buried and compressed by the overlying sediments. Only igneous rock can be said to be intrusi…ve or extrusive. (MORE)
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In Geology
What do intrusions and extrusions do?
An extrusion is the forcing out of one material from another. An intrusion is the opposite where one material is forced into / inside or in between another.
Answered
In Geology
What is extrusion and intrusion?
intrusion - intrusion is when magma cools down inside Earth. extrusion - extrusion is when lava cools down on Earth.
Answered
In Volcanoes
What is a intrusive volcano?
I am not sure if there's something called intrusive volcano. There is something called intrusive volcanic.
Answered
What to do in event of intrusion?
In the event of an intrusion, the best thing to do is to stay calm and if possible alert the security agencies to help you out of the situation.
Answered
In Geology
Why is magma intrusive?
Magma is molten rock that comes from a layer miles beneath theEart's crust. When underground pressures force magma upward, it "intrudes" intofissures within the solid rock, se…parating the layers of rock with"intrusive magma" that does not reach the surface. When magma erupts out of a volcano, it is "extrusive" and formseither "lava" that flows onto the ground, or "ejecta" that explodesinto the air (before falling to the ground as volcanic ash). Intrusion or extrusion of magma produces "igneous" rock, which verydifferent from rock which is produced by dissolved "sediments"accumulating at the bottom of rivers, or "metamorphic" rock whichchanges its shape and internal structure due to extreme pressures. (MORE)