Rocks and Soil

Soil

Clay

soil

Silt

soil

Sandy

Soil

loom

Soil

humus

O-organic

matter

A- Surface

Soil

B-Subsoil

C-Parent

Rock

Soil

horizon

O Horizon

A Horizon

B Horizon

C Horizon

C-Parent

Rock

are composed of one or

more minerals aggregated

together to form a cohesive

solid.

Petrology is the Study of

rocks

rocks

Classification of rocks

IGNEOUS METAMORPHIC

SEDIMENTARY

weathering

Mechanical and chemical

weathering break down the

rock and is mixed with the

organic materials.