Granite doesn't "turn into" anything specific when it weathers mechanically. Mechanical weathering, like freeze-thaw or abrasion, breaks down the granite into smaller pieces without changing its chemical composition. Think of it as shattering a rock into smaller fragments.

Here's a breakdown:

* Mechanical weathering: Processes that physically break down rocks. Examples include:

* Freeze-thaw: Water seeps into cracks, freezes, expands, and breaks the rock apart.

* Abrasion: Rocks rub against each other, grinding them down.

* Root wedging: Tree roots grow into cracks and force the rock apart.

* Chemical weathering: Processes that change the chemical composition of rocks. Examples include:

* Oxidation: Iron in rocks reacts with oxygen, forming rust.

* Hydrolysis: Water reacts with minerals in rocks, breaking them down.

* Carbonation: Carbon dioxide dissolves in water, forming carbonic acid, which can dissolve some rocks.

So, while mechanical weathering doesn't create a new type of rock, it does produce smaller pieces of the original granite. These smaller pieces can then be further weathered, both mechanically and chemically, eventually contributing to the formation of soil.