Глоссарий (анг)

Part of the continental margin that is between the shoreline and the continental slope (or, when there is no noticeable continental slope, a depth of 200 m). It is characterized by its very gentle slope of 0.1°. (Glossary of Geology) See: Shelf.

That part of the continental margin that is between the continental shelf and the continental rise if there is one. It is characterized by its relatively steep slope of 1.5° to 6°. (Glossary of Geology).

Sediments deposited by bottom currents that flow generally along a bathymetric contour, usually along the lower continental slope or rise, but exist also in continental seas like in the Baltic Sea. See also Drift deposits.

Genetically related paired sedimentary laminae, generally occurring in repeating series, as varves, but applied to laminated nonglacial shales, evaporites, and other sediments as well. (Glossary of Geology).

Group of at least two species that cannot be easily distinguished by morphological characters the origin of cryptic species can be difficult to identify.

Is an inexact, but convenient term designating an igneous or metamorphic rock, as opposed to a sedimentary rock. A rock that is wholly consisted of relatively large mineral grains, e.g., a plutonic rock, an igneous rock lacking glassy material, or a metamorphic rock. In the Eastern Gulf of Finland - Archean-Proterotsoic hard and solid rocks of the Baltic shield. See also Sedimentary rocks, Vendian clayey-silty deposits.

Toxins produced by blue-green algae (cyanobacteria).

(1) Parallel, regularly spaced ridges that are oriented transversely to ice movement in a general sense and that collectively resemble a washboard; (2) a subglacial feature formed by the periodic recession and re-advance of a glacier, which pushes previously deposited ground moraine into a ridge.

Part of coast in river's debouchure, formed primarily by river silts. Accumulation in delta is defined by size of solid flow and river's mode, as well as direction and speed of newest and modern movements.

Seaward prograding sediment body deposited at the mouth of a river.