Question

give 4 differences between dykes and sills

Answer 1

Dykes are igneous rocks that intrude vertically while sills are the same type of rocks that cuts horizontally in another land or rock form.
2.Dykes are discordant intrusion while sills are concordant intrusions.
3.Dykes and sills from due to pressure, force and stress from one point of origin. Dykes form when the point of origin is beneath the forming dyke and sill si formed when the starting point is either on the left or right side.
4.Both dykes and sills can be magmatic or sedimentary in nature. They are also slimmer, younger and wider than their surrounding rocks or plates. Dykes and sills as intrusion often have a different color from their surrounding rocks.
5.Dykes are easier to distinguish because the intrusion is evident between bedding planes and rock while sills can be harder to identify since it exists in parallel with the planes and the rocks. Only proper testing and discoloration between rocks can state whether a plane is a sill or part of the original rock formation.

Answer 2

Dyke vs. Sill

Geological terminology like "dyke" and "sill" are used to characterise intrusions, which are typically masses of igneous or volcanic rocks that have forcibly penetrated, assimilated, and lodged themselves into the layers of another rock or landform. Although they are not only found in volcanic landforms, dykes and sills are frequently related to them.

Both dykes and sills are igneous rocks that were left behind by the crystallisation of molten magma flow that is present beneath the Earth's surface and function as intrusions. They are found naturally in nature and are regarded as "foreign" rock in contrast to the "local" or "original" rock that surrounds them. They may seep into already present bedding plate fissures or may erupt as pressure or force from a specific point of origin.

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