This document discusses the different ways that lakes are formed, including through tectonic activity, glaciation, volcanic activity, erosion, deposition, and human/biological activities. Some key lake formations mentioned are rift valley lakes like Tanganyka formed by tectonic movement, cirque lakes in mountainous regions formed by glacial erosion, caldera lakes formed in volcanic craters, and man-made lakes like Lake Mead created by dams on rivers. The document provides many examples of specific lakes that illustrate each formation type.

1. LAKES
FORMATION &
TYPES
ABDUL MUHAIMIN K

2. LAKES FORMED BY EARTH MOVEMENT
Tectonic Lakes 1)Lake Titicaca
2)caspian
Rift vallet lakes 1)LAKES Tanganyka
2)Malawi
3)Rudolf
LAKES FORMED BY GLACIATION
Cirque lakes or Tarn 1)Red Tarn
2)Lake Ullswater
Kettle Lakes 1)Kettle lake of Orkney
2)Meres of Shropshire
Rock-Hollow lakes Most of lakes in
Finland
Lakes due to morainic
damming of valley
1)Lake Windermere
Lakes due to
deposition of glacial
drift
Lakes of northern
Ireland

3. LAKES FORMED BY VOLCANIC ACTIVITY
Caldera lakes 1)Lake Toba
2)Lake Avernes
Lava-blocked lakes 1) Galilee
Lakes due to
subsidence of a
volcanic land
1)Myvatn of iceland
LAKES FORMED BY EROSION
Karst lake 1)Lac de Chaillexon
2)Lake Scutari in
Yugoslavia
Wind diflated lake 1)Qattara deoression
in Egypt
2)Great basin of Utah

4. LAKES FORMED BY DEPOSITION
RIVER DEPOSIT 1)Lower Mississippi
2)Rio Grande (Mexico)
MARINE DEPOSIT lagoons
LANDSLIDE 1)Lake Gormire
LAKES FORMED BY HUMAN AND
BIOLOGICAL ACTIVITIES
MAN MADE LAKES 1)Lake Mead,colorado
river,USA
LAKES MADE BY
ANIMALS
1)Beaver lake in USA
OTHER TYPES OF
LAKE
Ornamental lakes