Why does continental crust not Subduct?

It is due to the process of subduction; oceanic crust tends to get colder and denser with age as it spreads off the mid-ocean ridges. It gets so dense, that it sinks in the upper mantle (subduction). As the continental crust is lighter than the oceanic crust, the continental crust cannot subduct.

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Accordingly, which crust is thicker?

continental crust Earth's crust is generally divided into older, thicker continental crust and younger, denser oceanic crust. Regarding this, what chemicals elements are involved in geochemistry? Aqueous geochemistry studies the role of various elements in watersheds, including copper, sulfur, mercury, and how elemental fluxes are exchanged through atmospheric-terrestrial-aquatic interactions. Biogeochemistry is the field of study focusing on the effect of life on the chemistry of the Earth.

What are trace elements examples?

Essential trace elements of the human body include zinc (Zn), copper (Cu), selenium (Se), chromium (Cr), cobalt (Co), iodine (I), manga- nese (Mn), and molybdenum (Mo). A major outcome of trace element deficiencies is reduced activity of the concerned enzymes. Accordingly, what metamorphic rock is produced from a limestone protolith? marble marble-marble is a metamorphic rock made up almost entirely of either calcite or dolomite, for which the protolith was either limestone or dolostone, respectively.

What is the difference between siderophile elements and lithophile elements?

Siderophile (S) - The metals near iron in the periodic table (i.e. the transition metals) that exhibit metallic bonding. Lithophile (L) - Those elements which form ionic bonds generally have filled outer electron shells. They typically bond to oxygen in silicates and oxides.