general geomorphology

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• GEOMORPHOLOGY —    The more recent changes in Etruria are relatively under studied. However, there have been investigations of the delta region of the Arno near Pisa, of the lagoons near Populonia, and of some of rivers in the Faliscan area in relationship to… …   Historical Dictionary of the Etruscans

• geomorphology —    The science that treats the general configuration of the earth s surface; specifically the study of the classification, description, nature, origin, and development of landforms and their relationships to underlying structures, and of the… …   Glossary of landform and geologic terms

• constructional —    [ geomorphology ]    (adjective) Said of a landform that owes its origin, form, position, or general character to depositional (aggradational) processes, such as the accumulation of sediment (e.g., alluvial fan, volcanic cone).    Compare:… …   Glossary of landform and geologic terms

• degradation —    [ geomorphology ]    The wearing down or away, and the general lowering of the land surface by natural processes of weathering and erosion (e.g., the deepening by a stream of its channel) and may infer the process of transportation of sediment …   Glossary of landform and geologic terms

• destructional —    [ geomorphology ]    (adjective) Said of a landform that owes its origin, form, position, or general character to the removal of material by erosion and weathering (degradation) processes resulting from the wearing down or away of the land… …   Glossary of landform and geologic terms

• erosional —    [ geomorphology ]    (adjective) Owing its origin, form, position or general character to degradational processes by water, wind, ice or gravity.    Compare: constructional.    HP …   Glossary of landform and geologic terms

• floor —    [ geomorphology ]     a) A general term for the nearly level, lower part of a basin or valley; (not preferred) refer to basin floor, valley floor.     b) The bed of any body of water; e.g., the nearly level surface beneath the water of a… …   Glossary of landform and geologic terms

• upland —    [ geomorphology ]    An informal, general term for     a) the higher ground of a region, in contrast with a low lying, adjacent land such as a valley or plain.     b) Land at a higher elevation than the flood plain or low stream terrace; land… …   Glossary of landform and geologic terms

• river — river1 riverless, adj. riverlike, adj. /riv euhr/, n. 1. a natural stream of water of fairly large size flowing in a definite course or channel or series of diverging and converging channels. 2. a similar stream of something other than water: a… …   Universalium

• geography — /jee og reuh fee/, n., pl. geographies. 1. the science dealing with the areal differentiation of the earth s surface, as shown in the character, arrangement, and interrelations over the world of such elements as climate, elevation, soil,… …   Universalium

• continental landform — ▪ geology Introduction       any conspicuous topographic feature on the largest land areas of the Earth. Familiar examples are mountains (including volcanic (volcanism) cones), plateaus, and valleys. (The term landform also can be applied to… …   Universalium