alluvium Clay, silt, gravel, or similar detrital material deposited by running water. These soils lack horizons and are usually highly fertile. alluvialРІР‚вЂ¦soils Soils deposited through the action of moving water. Alluvial plains encompass the larger area over which a river's floodplain has shifted through geological time. alluvialРІР‚вЂ¦plain A wide, flat, gently sloping plain created by the long-term deposition of alluvium from one or more rivers flowing from highland regions, and typically characterized by various fluvial landforms such as braidedРІР‚вЂ¦streams, terraces, and meanders.

They tend to be larger and more obvious in arid regions. Alluvial fans usually form at the base of mountains, where high-velocity rivers or streams meet a relatively flat area and lose the energy needed to carry large quantities of sediment, which ultimately spreads out in all available directions. alluvialРІР‚вЂ¦fan A distinctly triangular, fan-shaped deposit of sediment transported by water, often referred to as alluvium. agriculturalРІР‚вЂ¦geography A sub-discipline of geography which studies the spatial relationships between humans and agriculture and the cultural, political, and environmental processes that lead to parts of the Earth's surface being transformed by humans through primaryРІР‚вЂ¦sector activities into agricultural landscapes. activeРІР‚вЂ¦volcano A volcano that is currently erupting, or one that has erupted within the last 10,000 years (the Holocene) or during recorded history. accessibility resource A naturally emergent landscape form that eases communication between areas. accessibility A locational characteristic that permits a place to be reached by the efforts of those at other places. AbsoluteРІР‚вЂ¦location The particular location of a point on Earth's surface that can be expressed by a grid reference such as latitude and longitude.

Parallels definition geography