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From your statement it sounds like you are referring to an igneous dyke rather than a sill, however see the following:
A sill is a sheet of intruded magma that forms between to layers of older "country" rock. This is technically described as a "concordant sheet intrusion". If it is later over turned due to tectonic folding it may be vertical but as it was originally emplaced between and parallel to pre-existing rock layers, it is still an igneous sill! However if the intrusion cross cuts the bedding planes of the country rock - known as a discordant intrusion (and was originally (sub)vertical at the time of emplacement) it is known as a dyke.
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Magma that hardens vertically underneath the surface will form a sill?
Yes, that's correct. Sills are igneous rock formations that form when magma is intruded horizontally between rock layers and then solidifies underground. If the magma solidifies vertically underneath the surface, it will create a sill structure.
Granite and what are made when magma cools?
Granite and basalt are made when magma cools. Granite forms from slow-cooling magma underneath the Earth's surface, while basalt forms from rapidly-cooling magma on the surface.
What lies underneath volcanic features at Earth's surface?
Beneath volcanic features at Earth's surface lies a magma chamber filled with molten rock. As magma rises towards the surface, it can accumulate in reservoirs below the volcano, creating the potential for eruptions. This molten rock comes from the Earth's mantle through volcanic pipes and conduits.
What is the name when magma reaches the surface?
Magma is liquid rock before it reaches the surface magma which reaches the surface is called lava.
What is a molten material that leaves a volcanoes vent called?
it's called lava! lava is what's on the surface of a volcano, and magma is what's underneath
Magma that hardens vertically underneath the surface will form a sill?
Yes, that's correct. Sills are igneous rock formations that form when magma is intruded horizontally between rock layers and then solidifies underground. If the magma solidifies vertically underneath the surface, it will create a sill structure.
What rock that melts underneath earth?
The rock that melts underneath the Earth is called magma. Magma is formed from the melting of the Earth's mantle and can rise to the surface to form igneous rocks when it solidifies.
Granite and what are made when magma cools?
Granite and basalt are made when magma cools. Granite forms from slow-cooling magma underneath the Earth's surface, while basalt forms from rapidly-cooling magma on the surface.
What is a molten material that leaves a volcanoes vent is called?
it's called lava! lava is what's on the surface of a volcano, and magma is what's underneath
What lies underneath volcanic features at Earth's surface?
Beneath volcanic features at Earth's surface lies a magma chamber filled with molten rock. As magma rises towards the surface, it can accumulate in reservoirs below the volcano, creating the potential for eruptions. This molten rock comes from the Earth's mantle through volcanic pipes and conduits.
What is the name when magma reaches the surface?
Magma is liquid rock before it reaches the surface magma which reaches the surface is called lava.
When volcano lava cools at the surface?
When magma cools at the surface of the Earth, it cools very quickly and hardens on the Earths crust. However, it continues flowing underneath, forming interesting textures.
How would igneous rock be on a layer of sedimentary rock?
The igneous rock could have been erupted as lava on the surface, or intruded into the sedimentary rock layers as magma underneath the surface (a sill).
What is magma and what does it do?
Magma is lava underneath the earth. The tectonic plates of the earth float on it.
Do volcanoes erupt for the same reasons?
Yes, all volcanoes erupt because the magma underneath or in the volcano is under pressure, which forces the magma to the surface, where there is less pressure. However, volcanoes form in different places.
What is a molten material that leaves a volcanoes vent called?
it's called lava! lava is what's on the surface of a volcano, and magma is what's underneath
What is found underneath the tectonic plates?
magma
