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aleksklad [387]
3 years ago
10

When magma solidifies underground, the resulting landform is classified as _______.

Geography
2 answers:
galina1969 [7]3 years ago
3 0

Answer:

1. When magma solidifies underground, the resulting landform is classified as <u><em>Intrusive rocks. </em></u>

2. Lava cooling on the surface of the earth forms <u><em>Extrusive igneous rocks </em></u> features.

3. A very large mineral is more likely to be found in <u><em>Igneous</em></u> rock.

4. <u><em>Lava</em></u> is magma that forms in long, horizontal shafts in the earth’s crust.

5. Lava with high basalt content forms <u><em>high ferromagnetism</em></u> through multiple eruptions.

Explanation:

1. Intrusive rock is formed when magma penetrates existing rock, crystallizes and solidifies underground to form intrusions. Intrusive rock forms within Earth's crust from the crystallization of magma.

2. Extrusive igneous rocks form when magma reaches the Earth's surface of a volcano and cools quickly. Most extrusive rocks have small crystals.

3. Igneous rock or magmatic<em> rock</em>, is one of the 3 main rock types. The other 2 are called <em>sedimentary</em> and<em> metamorphic</em>. Igneous rock is formed through the cooling and solidification of magma or lava.

4. Lava is molten rock generated by geothermal energy and expelled through fractures in planetary crust or in an eruption, usually at temperatures from 1.292 to 2.192 °F.  

5. Mafic or basaltic lavas are best known by their <em>high ferromagnesian content. </em>

Eruptions associated with basaltic lava usually are <em>not explosive</em> due to the low silica and gas content.  

Because of the low viscosity, basaltic lava flows spread out, forming extensive layers. They may build up to form a large shield volcano.  

allsm [11]3 years ago
3 0

Answer:

intrusive

extrusive

intrusive

sills

lava plateaus

The only way that an intrusive landform can become visible is through significant and prolonged erosion.

Explanation:

this is from penn

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