Lithosphere and erosion

Lithosphere: Why is it important?

mineralsNutrients

Organic matter

absorbed

Lithosphere

• Earth changes– Internal geological processes earthquakes

volcanic eruptions

– External geological processes

Earth´s Surface

Wind Water Human activity

erosion

Internal or external geological process?

Internal or external geological process?

External:erosion water

Internal or external geological process?

Internal or external geological process?

Internal: earth

quake

Internal or external geological process?

Internal or external geological process?

Internal: volca

nic erruption

Internal or external geological process?

Internal or external geological process?

External: Erosio

n:wind

Internal or external geological process?

Internal or external geological process?

External:erosion: human activity

Erosion

Changes on Earth

External

Erosion: water

Erosion: wind

InternalEarthquakes,

volcanic eruptions, etc

Erosion: Human activity

Fluvial

Pluvial

Arthropic

Glacial

Type of erosion

Anthropic Erosion

Anthropic Erosion

• Inadequate agricultural practices-planting crops on hills or inclined land where minerals can be washed away

Anthropic Erosion

• Inadequate agricultural practices-too many animals in the same grazing field

Anthropic Erosion

• Eliminating vegetation on forest floors: mechanically, chemically or by using fire.

Anthropic Erosion

• Recurrent Forest fires

Consecuences• Desertification

• Overexploitation loss of nutrients

Consecuences• Extraction of mineral resources

• Overexploitation impermeable floors floods

VIDEO

What type of erosion is it?

What type of erosion is it?

What type of erosion is it?

What type of erosion is it?

What type of erosion is it?

What type of erosion is it?

What type of erosion is it?

What type of erosion is it?