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Is sill a type of lava flow?

Updated: 8/11/2023
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8y ago

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A Sill is formed when a fluid rock (usually magma but it can be mud or salt) is squeezed in between the layers (usually horizontal) of older rocks before it solidifies in place.

A Dike or Dyke is the opposite, here the fluid rock penetrates across the layering of the older rocks.

Logically to get the material to form a Sill there must be an accompanying feeder Dyke.

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10y ago
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11y ago

A sill is an intrusive body of magma that pushes its way between layers of sediments

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14y ago

A volcanic sill is an intrusive body of magma. A volcani sill forms when magma sqeezes between layers of rock.

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10y ago

A sill is an intrusive body of magma that pushes its way between layers of sediments.

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8y ago

No. A sill is an intrusive feature, formed from magma in between underground rock layers.

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9y ago

A magma sill is a planar sheet of magma which is parallel to the surrounding rock.

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Q: Is sill a type of lava flow?
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