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konstantin123 [22]
3 years ago
7

What theory explains the causes of earthquakes and volcanoes? continental drift hydrologics plate tectonics weathering

Geography
2 answers:
Over [174]3 years ago
8 0
It's plate tectonics, Earthquakes can be cause by ...

Destructive boundaries (where an oceanic plate goes under a continental plate which causes pressure to build up by friction, and when is released, causes an earthquake)
Or Conservative boundaries where 2 plates rub against each other causing pressure to build up and be released as an earthquake.

Volcanos can be made by...
constructive plate boundaries where 2 plates pull away from each other, leaving large cracks in the earth for magma to erupt.
As well as...

Hotspots which are on the plate itself not a boundary.
DiKsa [7]3 years ago
8 0
Continental drift causes volcanoes to be formed and obviously causes earthquakes
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From the magma silicate crystals are formed successively when the magma temperature reaches the typical melting temperature for each type of crystal. The first crystals formed at high temperatures can then change their composition or dissolve again. In this way the crystals already formed contribute their ions, molecules and atoms to magma and combine again forming new crystals whose melting temperature is lower than that of the first crystals formed. The new crystals are said to be stable at the lowest temperatures set now. These processes of change are called reactions. As several successive reactions occur as the magma temperature decreases the ordered series of reactions is called the BOWEN series in honor of the Canadian scientist who formulated this concept. There are two types of reactions, the continuous reaction and the discontinuous reaction.

<u> By continuous reaction a crystal formed at high temperatures such as a plagioclase rich in the Ca2 +</u> component gradually varies its composition by replacing a portion of the Ca2 + ions with the Na + ions and a portion of the Al3 + ions with the Si4 + ions. To maintain its neutrality, the replacement of Ca2 + by Na + is coupled with the replacement of Al3 + by Si4 +. The series of continuous reaction starts from the plagioclase rich in Ca2 +, passes through several plagioclase of intermediate composition towards the plagioclase rich in Na +

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