- Geomorphic features are landforms created by internal and external forces shaping the Earth's surface.
- These features are classified into primary (endogenic) and secondary (exogenic) landforms.
- Primary landforms are formed by tectonic activities like mountain building, volcanism, and faulting.
- Mountains: Elevated landforms created by tectonic forces, classified as fold, block, volcanic, or residual mountains.
- Fold mountains: Formed by compressional forces, e.g., the Himalayas, Alps, and Rockies.
- Block mountains: Created by faulting, e.g., the Sierra Nevada and the Vosges.
- Volcanic mountains: Formed by lava accumulation, e.g., Mount Kilimanjaro and Mount Fuji.
- Plateaus: Elevated flat-topped areas formed by volcanic or tectonic processes, e.g., the Deccan Plateau.
- Plains: Broad, flat areas formed by deposition of sediments by rivers, wind, or glaciers.
- Valleys: Low-lying areas between hills or mountains, shaped by rivers, glaciers, or tectonic activity.
- Rift valleys: Formed by divergent plate movements, e.g., the East African Rift Valley.
- Volcanic landforms: Include craters, calderas, lava plateaus, and volcanic cones.
- Secondary landforms result from weathering, erosion, transportation, and deposition by external agents.
- Fluvial landforms: Created by river action, including meanders, oxbow lakes, floodplains, and deltas.
- River valleys: V-shaped valleys in youthful stages and U-shaped valleys in mature stages.
- Deltas: Formed at river mouths where sediment is deposited, e.g., the Ganges-Brahmaputra Delta.
- Glacial landforms: Formed by glaciers, including moraines, drumlins, eskers, and cirques.
- U-shaped valleys: Carved by glaciers, commonly found in high altitudes.
- Fjords: Glacially carved valleys submerged by the sea, e.g., in Norway.
- Aeolian landforms: Formed by wind action, common in arid regions, e.g., sand dunes, loess deposits, and yardangs.
- Coastal landforms: Shaped by wave action, tides, and currents, e.g., beaches, sea cliffs, spits, and lagoons.
- Beaches: Sandy or pebbly shores formed by wave deposition.
- Sea cliffs: Steep rock faces formed by wave erosion.
- Coral reefs: Marine landforms created by coral organisms, e.g., the Great Barrier Reef.
- Karst topography: Formed in limestone regions by chemical weathering, including caves, sinkholes, and stalactites.
- Caves: Underground voids formed by water dissolving limestone or other soluble rocks.
- Sinkholes: Depressions caused by the collapse of underground caves.
- Landslides: Sudden movement of rock and soil down slopes, often triggered by gravity or earthquakes.
- Mass wasting: Downhill movement of soil and rock due to gravity, shaping slopes and cliffs.
- Desert landforms: Include ergs (sand seas), reg (stony deserts), and wadis (dry riverbeds).
- Mountain ranges: Formed by tectonic activity, stretching over large areas, e.g., the Andes and Rockies.
- Island arcs: Curved chains of volcanic islands formed at convergent boundaries, e.g., Japan and the Philippines.
- Hotspots: Areas of volcanic activity independent of plate boundaries, e.g., Hawaii and Yellowstone.
- Continental shelves: Submerged edges of continents, rich in marine biodiversity and resources.
- Submarine canyons: Deep valleys carved into continental shelves by underwater currents.
- Ocean trenches: Deep depressions in the ocean floor formed at subduction zones, e.g., the Mariana Trench.
- Alluvial fans: Fan-shaped deposits formed where rivers lose energy, typically at mountain bases.
- Inselbergs: Isolated rock hills rising abruptly from plains, e.g., Uluru in Australia.
- Pediments: Gently sloping rock surfaces at the base of mountains, shaped by erosion.
- Badlands: Eroded landscapes with irregular terrain, often in arid regions.
- Terraces: Step-like landforms created by river erosion or tectonic uplift.
- Natural levees: Elevated riverbanks formed by sediment deposition during floods.
- Lagoons: Shallow coastal water bodies separated by sandbars or coral reefs.
- Understanding major geomorphic features is crucial for studying Earth's dynamic processes and environmental management.
Questions
- What is the term for the flat-topped highland with steep sides?
- Which landform is created by the deposition of sediment at a river's mouth?
- What is the name of a steep-sided valley formed by river erosion?
- What is the term for an isolated hill with steep sides and a flat top?
- What is the name of the crescent-shaped dune formed by wind action?
- What type of feature is created by glacial erosion?
- What is the term for a ridge of sediment deposited along a riverbank?
- What is the primary geomorphic feature formed at divergent plate boundaries?
- What is the term for the flat land at the base of a mountain created by sediment deposition?
- Which feature is formed by wind erosion in deserts?
- What is the name for a large body of ice that moves over land?
- What type of valley is formed by glaciers?
- What is the name of the ridge formed by glacier deposition?
- What is the term for the underwater mountain range formed by divergent plates?
- What is the flat, low-lying land next to a river prone to flooding?
- What is the name of the extensive, flat areas of sedimentary rock in deserts?
- What is the term for an underwater canyon formed by river erosion?
- Which landform is a result of coastal erosion?
- What is the term for the raised banks along a river created by sediment deposition?
- What is the term for the bowl-shaped depression formed by glacier erosion?
- What is the name of the mountain range created by the collision of tectonic plates?
- What is the term for the broad, flat area formed by sediment deposition at a river's mouth?
- What is the landform created by wind deposition in deserts?
- What is the term for the steep, narrow valley formed by river erosion?
- What is the term for the uplifted block of land between two faults?
- What is the name for a long, narrow valley formed by tectonic forces?
- What is the term for the V-shaped valley created by river erosion?
- What is the name for the landform formed by the deposition of glacial debris?
- What is the term for the underwater trench formed by subduction of tectonic plates?
- Which landform is created by volcanic activity?
- What is the term for the chain of volcanoes around the Pacific Ocean?
- What is the name of the gently sloping underwater land at the edge of a continent?
- What is the term for the rolling hills formed by glacial deposition?
- What is the name of the flat region on the ocean floor?
- What is the term for the narrow strip of land connecting two larger land masses?
- What is the term for a depositional feature formed by rivers in arid regions?
- What is the name for a coastal feature formed by wave deposition?
- What is the term for the flat-topped submerged mountains in the ocean?
- What is the name of the underwater volcanoes that reach the ocean surface?
- What is the term for a desert landform created by wind erosion?
- What is the term for a fan-shaped deposit of sediment at the base of a slope?
- What is the term for the sharp, narrow ridge formed between two cirques?