"Island ArcsIsland arcs are long, curved chains of oceanic islands associated with seismic activity and mountain-building processes at certain plate boundaries. They occur where oceanic tectonic plates collide. Along one side of these island arcs, there is usually a long, narrow deep-sea trench.At island arcs, the denser plate is subducted and is forced into the partially molten mantle under the less dense plate. The islands are composed of the extrusive igneous rocks basalt and andesite. The basalt originates most likely from the plastic mantle. The andesite originates most likely from the melting of parts of the descending plate and sediments that had accumulated on its surface.Which list identifies minerals present in andesite from the greatest percentage by volume to the least percentage by volume? "
As the different situations and events gave rise to the seven different tectonic plates which comprises the over all structure of the planet, as there are a number of geological sites that took there shape because of the movement of the different planetary regions, layers, or the components which makes up the deep down trenches and the islands along with the different volcanic hotspots.
Mostly the subduction region is only due the movement or the sliding of the different tectonic plates which gives rise to a way different catastrophic events like the creation of the seismic way may generate the earth quakes inside the different regions.
Along, with that the different climates across the globe are also due the difference in such geological sites.

8 0

3 years ago

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Why do many deserts exist at 30° north and south latitudes?a. The temperature is much higher at these latitudes; therefore, mois

marshall27 [118]

Answer:

the answer is e

Explanation:

3 0

2 years ago

The Sun's rays are directly overhead at the __ on or about December 21.

alexira [117]

Answer: Tropic of Capricon

Explanation: the sun rays are directly overhead at the tropic of Capricorn on December 21 and it is called December Solstice

7 0

2 years ago

If the contour interval is 50 meters on this map, then the line between 500 and 600 has an elevation of

Papessa [141]

Answer:

The line between 500 and 600 has an elevation of 550.

Explanation:

The contour interval represents the vertical difference between the contour lines. This is for better orientation on the map, easier calculating of elevation, as well as for an easier understanding of the relief. In this case, we have lines that are set at 500 meters and 600 meters of elevation, but there is also a line between them.

The line between, or rather the contour line between them, can easily be found out as to what elevation it is set on. We have information that the contour interval on the map is 50 meters, so we can do this either by adding 50 on 500 or minus 50 out of 600, anyway we will get the correct result.

500 + 50 = 550

600 - 50 = 550

We get a result of 550, meaning that the contour line between 500 meters and 600 meters is set at 550 meters of elevation.

4 0

3 years ago