Question

Explain what happens to iron bearing minerals found in magma at divergent boundaries. Explain how this could be considered evidence of seafloor spreading ( add information on plate tectonics.

Answer 1

1.These are the elements that make up the rock forming silicate minerals. ... decrease - this is a very important mechanism at divergent boundaries; Addition of water ... is found at shallower depths and the lithosphere is correspondingly thinner.
2.Seafloor spreading is a geologic process in which tectonic ... Mid-ocean ridges and seafloor spreading can also influence sea levels. ... This helps explain why sea levels have fallen dramatically over the past 80 million years.
3.Plate tectonics is the theory that Earth's outer shell is divided into several ... for how continents could move around the planet, but researchers do now.



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