Geography, 04.02.2020 04:45 ijohnh14

How are sills and lapoliths similar?

a. both form long, horizontal shafts.
b. both form from magma that flows horizontally.
c. both solidify into a saucer shape.
d. both form the cores of mountains.

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Answer from: deraldw0509

B. Both are formed from magma that flows horizontally

Explanation:

Based on its position on the rock layer that is intruded, intrusive igneous rock body structure is divided into two parts, namely concordant and discordant.

A concordant is a deep igneous rock body that is parallel to the surrounding rock layers. The concordant has four forms, namely sill, laccolith, lapolith and paccolith.

Sill is a body of igneous rock that is parallel to the surrounding layers Lapolith is a frozen deep body shape that bulges in the lower layers while the upper layers remain flat.

So the equation is that they flow through or pass through the layers and move horizontally.

So the correct answer is B. Both are formed from magma that flows horizontally.

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Keywords

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Answer from: swaggyd6603

B. Both form from magma that flows horizontally

Further explanation

We have known beforehand that magma is formed in the lithospheric layer which originates from friction between 2 plates in a subduction zone. Friction between the two hot plates is capable of causing the melting of rocks which then melt the rock into a magma kitchen. Magma which has high temperatures and also high pressure will always go to places that have lower pressure on the surface of the Earth.

So from that the effort of magma to get out or go to a place that has a lower pressure is known as intrusion and extrusion of magma. The word extrusion is the process of the discharge of magma from the kitchen of magma to the surface of the Earth. While what is meant by intrusion is the process of a breakthrough of magma into the Earth's crust or listosphere but it does not reach the surface of the Earth.

Forms of Magma Intrusion

Magma intrusion, which is one of the activities carried out by magma, according to its type, intrusion of magma is divided into several types of magma intrusions which certainly occur under the surface of the Earth. The forms of magma intrusion include the following:

Batolit Lacolite Sill Diaterma

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sills and lapoliths similar

Details

Class: middle school

Subject: geography

Keywords : magma, activities, friction

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How are sills and lapoliths similar?

a. both form long, horizontal shafts.
b. bo...

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