Black Sea Oceanography (Paperback, Softcover reprint of the original 1st ed. 1991)

Anoxic basins are ofgreat interest to oceanographersofall disciplines. Theirextreme conditionsresult from acombinationofhigh oxygen utilization and restricted circulation. It is necessery to understand present -day anoxic environments ifwe are to understand the early evolution of the oceans (e.g. SiIlen, 1965). Sarmiento et al.(1988a) explored the causes of anoxia in the global ocean, which is in effect a "closed" basin and in marginal seas such as the Eastern Mediterranean (Sarmiento et al. 1988b). Anoxic conditions have been proposed toexist in various ocean basins at different times in the geological past (e.g. the Crataceous period; Weissert, 1981) and possibly as recent as the last glacial maximum (e.g., Sarmiento and Toggweiler,1984). The modern Black Sea has been considered as the type anoxic basin. It is the world's 2 3 largest permanaently anoxic basin (area = 423,000 km; volume = 534,000 km ) and is thought to be aquasi-steady state system. It is extremely isolated from the rest ofthe world's oceans. Only the narrow and shallow Bosporus Strait provides water exchange with the Mediterranean. Concentrationsofhydrogen sulfide reach valuesof350 Mm in the deep water and the oxygen-hydrogen sulfide Interface exists between 80 and 200m waterdepth. The hydrographic regime is characterized by low salinity surface water of riverine origin overlying high salinity deep waterofMediterranean origin. Asteep pycnocline is the primary phycical barrier to mixing and is the origin of the stability of the anoxic interface.

General

Imprint:	Springer
Country of origin:	Netherlands
Series:	NATO Science Series C, 351
Release date:	October 2012
First published:	1991
Editors:	E. Izdar • James W. Murray
Dimensions:	235 x 155 x 26mm (L x W x T)
Format:	Paperback
Pages:	487
Edition:	Softcover reprint of the original 1st ed. 1991
ISBN-13:	978-9401051521
Categories:	Books > Science & Mathematics > Biology, life sciences > Life sciences: general issues > Ecological science, the Biosphere Books > Earth & environment > Earth sciences > Geology & the lithosphere > Geochemistry Books > Earth & environment > Earth sciences > The hydrosphere > Oceanography (seas) Promotions
LSN:	9401051526
Barcode:	9789401051521

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