Tropical Granite

Granite is....

• igneous, coarse grained, soft

• igneous, coarse grained, hard

• metamorphic, fine grained, soft

What percentage of the earth's crust is made up of igneous rock?

• 20 %
• 50%
• 95%
• 75%

Which minerals are found in granite (3)?

• quartz

• feldspar

• calcite

• mica

What are the most common granite landforms in the UK?

• Batholiths

• Domes

• Tors

• Moors

When the weathered material is removed from the top of the inselberg, which physical/mechanical process begins first?

• Pressure Release

• Freeze-thaw

• Salt Crystalization

• Exfoliation (thermal fracturing/disintegration)

What other form of weathering impacts greatly upon granite?

• Hydration

• Salt Crystalization

• Hydrolysis

• Carbonation

What is the Basal Surface of Weathering?

• The surface of the land

• The area between the soil and regolith

• The boundary between weathered and parent rock.

What is the correct definition for hydrolysis?

• Physical reaction where water disintegrates a compound

• Chemical reaction where water breaks down a compound

• Biological action where water rects with soil

Saprolite is ...

• chemically weathered bedrock, rich in clay, common in humid tropics

• the o, a, b horizons and regolith

• parent rock

What is this landform?

• Inselberg - isolated, domed top hill - steep sides, at least 30 m high

• Ruware - low- lying rounded hill, 2-5 m high - surrounded by deep, weathered material

• Koppie- low- lying core stones - rocky, scattered blocky boulders