Question

how was the name sial derived ?​

Answer 1

Answer:

The uppermost layer of the crust is called sial consisting of silicate and Aluminium (Si =silicate, Al= aluminium). ... The name 'sial' was taken from the first two letters of silica and of alumina

Answer 2

Answer:

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Explanation:

$The \: name \: 'sial' was \: taken from \\ the \: first \: two \: letters \: of \: silica \: and \: \\ of \: alumina \: . \: The \: sial \: is \: often \\ contrasted \: to \: the \: 'sima,' \: the \: next \\ lower \: layer \: in \: the \: Earth, which \\ is \: often \: exposed \: in \: the \: ocean \\ basins;m and \: the \: nickel-iron \: alloy \: \\ core, \: sometimes \: referred \: to \: as \: \\ the "Nife".$