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Which is older the sill or the rock surrounding it?

The rock surrounding the sill is typically older because the sill is an intrusive igneous rock body that forms when magma is injected into existing rock and solidified.


What forms when magma flows horizontally along rock layers?

When magma flows horizontally along rock layers, it can form a feature called a sill. Sills are tabular igneous intrusions that are parallel to the surrounding rock layers. They are typically formed when magma is injected between existing rock layers and cools and solidifies underground.


What rock type is the palisades sill?

The Palisades Sill is primarily composed of diabase, which is a type of igneous rock. Formed from the cooling and solidification of magma, diabase is characterized by its dark color and fine-grained texture. The sill itself was intruded into sedimentary rock layers approximately 200 million years ago during the Jurassic period. Its formation is part of a larger geological feature known as the Newark Supergroup.


What is larger sill dike laccolith or batholith?

A batholith is the largest intrusive igneous formation, made up of a large mass of granite or granitic rocks, that covers an area of tens to hundreds of square kilometers. Sill, dike, and laccolith are all smaller intrusive igneous formations. Laccolith is larger than sill or dike, with a typically flat base and arched roof, intruding between sedimentary rock layers.


HOW does composition layering occur in igneous bodies?

A layered intrusion is a large sill-like body of igneous rock which exhibits vertical layering or differences in composition and texture.

Related Questions

What is the geologic term for a tabular body of igneous rock that is parallel to the surrounding rock layers?

It's called a concordant igneous intrusion, or a sill.


What is an intrusive igneous rock body that is tabular and concordant.?

sill


An igneous body younger than the rocks above and below?

sill


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 would be one of the first minerals to crystallize from liquid rock in a mafic igneous sill?

One of the first minerals to crystallize from liquid rock in a mafic igneous sill would likely be olivine. Olivine has a high melting temperature and tends to crystallize early in the cooling process due to its simple mineral structure.


Which is older the sill or the rock surrounding it?

The rock surrounding the sill is typically older because the sill is an intrusive igneous rock body that forms when magma is injected into existing rock and solidified.


What forms when magma flows horizontally along rock layers?

When magma flows horizontally along rock layers, it can form a feature called a sill. Sills are tabular igneous intrusions that are parallel to the surrounding rock layers. They are typically formed when magma is injected between existing rock layers and cools and solidifies underground.


What is an intrusive igneous rock body that is tabular and concordant?

A sill is an intrusive igneous rock body that is tabular and concordant, meaning it is parallel to the layering of the surrounding rock. Sills form when magma is injected between existing rock layers and solidifies underground.


When magma rises what geological formation can result?

If it has broken through the Earth's crust then it would be a igneous extrusion and a volcano can form. If it hasn't complete broke through the crust it would be a igneous intrusion. Depending if the intrusion was concordant or discordant with the bedding planes it would be either a sill or a dyke.


What is larger sill dike laccolith or batholith?

A batholith is the largest intrusive igneous formation, made up of a large mass of granite or granitic rocks, that covers an area of tens to hundreds of square kilometers. Sill, dike, and laccolith are all smaller intrusive igneous formations. Laccolith is larger than sill or dike, with a typically flat base and arched roof, intruding between sedimentary rock layers.


HOW does composition layering occur in igneous bodies?

A layered intrusion is a large sill-like body of igneous rock which exhibits vertical layering or differences in composition and texture.


What is a horizontal intrusive igneous body that forms between sedimentary rock layers?

A sill is a horizontal intrusive igneous body that forms between sedimentary rock layers. Sills are formed when magma intrudes parallel to the layering of the surrounding rocks and solidifies underground.