Question

Explain of sial or sima​

Answer 1

Answer:

SIAL is the layer which forms the continents. It is made up of Silica (Si) and Aluminium (Al). SIMA is the layer which makes up the ocean floor. It is called so because it is made up of Silica (Si) and Magnesium (Mg)

ʜᴏᴩᴇ ɪᴛꜱ ʜᴇʟᴩꜰᴜʟ ꜰᴏʀ ᴜ !

ᴍᴀʀᴋ ᴍᴇ ᴀꜱ ʙʀᴀɪɴʟɪᴇꜱᴛ✌️

Answer 2

Answer:

sial

In geology, the term sial refers to the composition of the upper layer of Earth's crust, namely rocks rich in aluminium silicate minerals. It is sometimes equated with the continental crust because it is absent in the wide oceanic basins,[1] but 'sial' is a geochemical term rather than a plate tectonic term.[2] As these elements are less dense than the majority of Earth's elements, they tend to be concentrated in the upper layer of the crust.

and

sima

In geology, sima is an antiquated blended term for the lower layer of Earth's crust. This layer is made of rocks rich in magnesium silicate minerals. Typically, when the sima comes to the surface, it is basalt, so sometimes this layer is called the 'ocean layer' of the crust. The sima layer is also called the 'basal crust' or 'basal layer' because it is the lowest layer of the crust. Because the ocean floors are mainly sima, it is also sometimes called the 'oceanic crust'.

Explanation:

I hope it will help you