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The major archaeological problem with waterlogged finds, particularly wood, is that they deteriorate rapidly when they are uncovered, beginning to dry and crack almost at once. They therefore need to be kept wet until treated in a laboratory. Conservation measures explain why wet archaeology costs around four times as much as dry archaeology.
It includes oceanic sea drainage basins which have hydrologically coherent areas (oceanic seas are set by IHO convention). The oceans drain approximately 83% of the land in the world. The other 17% – an area larger than the basin of the Arctic Ocean – drains to internal endorheic basins.
This is a list of places on land below mean sea level. Places artificially created such as tunnels, mines, basements, and dug holes, or places under water, or existing temporarily as a result of ebbing of sea tide etc., are not included.
The Pantanal is a natural region encompassing the world's largest tropical wetland area. It is located mostly within the Brazilian state of Mato Grosso do Sul, but it extends into Mato Grosso and portions of Bolivia and Paraguay. It sprawls over an area estimated at between 140,000 and 195,000 square kilometres (54,000 and 75,000 sq mi).
Freshwater swamp forests contain soft, unstable, and anoxic soil due to their waterlogged condition, which may have influenced the evolution of unique root adaptations in these trees that resemble those seen in a real mangrove forest. [17] [18]
Devon Island, in the Canadian North, is the world's largest uninhabited island. Northeast Greenland National Park, which is the world's largest terrestrial protected area, has had a census population of 0 for many years since the only mine in the region closed. Nevertheless parts of this remote area can see seasonal use: 31 people and about 110 ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 19 February 2025. Water located beneath the ground surface An illustration showing groundwater in aquifers (in blue) (1, 5 and 6) below the water table (4), and three different wells (7, 8 and 9) dug to reach it. Groundwater is the water present beneath Earth's surface in rock and soil pore spaces and in ...
Bayou – Body of water in flat, low-lying areas; Bog – Type of wetland with peat-rich soil; Coniferous swamp – Forested wetlands dominated by conifers; Fen – Type of wetland fed by mineral-rich ground or surface water; Freshwater swamp forest – Forest growing on an alluvial zone; Hydrogen sulfide – Poisonous, corrosive and flammable gas