rift valleys
Crustal extension depressions
Rift valleys are long, narrow depressions in the earth's surface formed when tectonic plates pull apart and the land between parallel faults drops down.
The East African Rift Valley is the classic example, stretching thousands of miles from Mozambique to the Red Sea.
These geological formations often contain lakes, volcanic activity, and significant fossil deposits—the East African rift has yielded crucial evidence of early human evolution.
- fault linesFractures between rock masses
- plate tectonicsEarth's crust mobility theory
- asthenosphereDuctile upper mantle layer
- continental driftGradual landmass repositioning
- hydrothermal ventsSubmarine volcanic water jets
magma chambers · geomorphology · subsidence · volcanoes · earthquakes · magma · steep · trench · Africa · spreading · Kenya · crust · plates · fissure · escarpment · gorge · faults · chasm
- geologybedrock, fault lines, faults, rock, basalt
- natural wondersnorthern lights, aurora borealis, auroras, rainbows, Great Barrier Reef
- valleysdales, canyon, vales, glens, vale
- ocean geologyseafloor, seabed, ocean basins, ocean floor, ocean basin
- regionsregion, regions, area, areas, zone
- Eurasian GeographyHimalayas, Tibetan Plateau, Gobi Desert, Ganges River, Yangtze River
rift valleysmountain ranges
Extended series of peaks
mountain ridges · highlands · mountain chains · plateaus · cordilleras
rift valleysHimalayas
Asia's highest range
Alps · Andes · Appalachians · Rockies · Tibetan Plateau