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azamat
3 years ago
9

How would you distinguish between rhyolite porphyry, andesite porphyry, and basalt porphyry

Geography
1 answer:
Mrac [35]3 years ago
7 0

<u>Basalt</u>

<em>     </em><em>Formation</em> -basalt is (mineral) a hard igneous rock of varied mineral   content formed when lava reaches the Earth's surface near an active volcano

<em>     </em><em>Texture</em>-  is fine grained so the individual minerals are not visible

<em>     </em><em>Colour</em>- basalt being dark

<u>Rhyolite</u>

<em>       Formation</em> -Rhyolite is a very fine-grained to glassy extrusive igneous rock. Formed in continental plates have  volcanic eruptions.

<em>     Texture</em>- very small than grains and are difficult to observe without using a hand lens.

<em>     </em><em>Colour</em>- light in colour whether  pink or grey  

<u>Andesite</u>  

<em>     </em><u><em> </em></u><em>Formation</em>- Andesite is a fine-grained igneous rock that forms when the magma is rises up onto the surface and  crystallized quickly

<em>     </em><em>Texture</em>- higher than basalt and lower than rhyolite  

<em>     </em><em>Colour</em><em> -</em>- color is pale due to silica content

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