OUESTION $[36$MARKS$]$

Figure $1$: Rock Slope at Gua Damai, Selangor

$($a$)$ Figure $1$ show a picture of the rock outcrop surface. This rock outcrop has a lot of caves. Define the possible type of rock in Figure $1?$ And what is its possible specific name? Please use following notes to direct your answers.

$($i$)$ Classification$/$subgroup

$($ii$)$ Forming process

$[8$ Marks$]$

$($b$)$ Compare the differences between the texture and composition of Slate and Diorite? And illustrate your answer with sketch.

$[8$ Marks$]$

$($c$)$ Describe the Siltstone and Phyllite rock.

$[20$ Marks$]$

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