PANGAEA_848019 (Table 1) Geichemical composition of Black Sea fluffy layer and underlying sediments Pilskaln, Cynthia; Pike, Jennifer (Table 1) Geichemical composition of Black Sea fluffy layer and underlying sediments 2001 PANGAEA Dataset Supplement to: Pilskaln, Cynthia; Pike, Jennifer (2001): Formation of Holocene sedimentary laminae in the Black Sea and the role of the benthic flocculent layer. Paleoceanography, 16(1), 1-19, https://doi.org/10.1029/1999PA000469 https://doi.pangaea.de/10.1594/PANGAEA.848019 Investigator Cynthia Pilskaln Earth Science Event label Latitude of event Longitude of event DEPTH, sediment/rock Size fraction Calcium carbonate Opal, biogenic silica Carbon, organic, particulate Lithogenic material geoscientificInformation Box corer KN134-8_Leg1 KN134-8_Leg1_10 KN134-8_Leg1_13/14 KN134-8_Leg1_20 KN134-8_Leg1_27/28 KN134-8_Leg1_30 KN134-8_Leg1_31 KN134-8_Leg1_36 KN134-8_Leg1_37 KN134-8_Leg1_44 KN134-8_Leg1_47 KN134-8_Leg1_48 KN134-8_Leg1_BS KN134-8_Leg1_BSK1 KN134-8_Leg1_BSK2 KN134-8_Leg1_BSK3 Knorr Complete 41.35 43.38 29.49 41.25 0.0 m (DEPTH, sediment/rock) 0.0 m (DEPTH, sediment/rock) unrestricted CC-BY-3.0: Creative Commons Attribution 3.0 Unported English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

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Holocene Black Sea sediments recovered in 1988 and 1993 from box cores and gravity cores were analyzed geochemically, microscopically, and with backscattered electron imagery (BSEI) in order to determine the temporal, geochemical, and sedimentological relationships between the benthic flocculent layer (often referred to as the fluff layer) and the formation of underlying laminated unit I sediments. Existence of a permanent benthic fluff layer in the Black Sea basin is suggested, acting as a geochemical transition layer within which all sedimentary particles are hydraulically sorted and particles subject to dissolution or organic remineralization are altered prior to accumulation. We propose that particle residence time within the benthic fluff layer is a key factor in determining sedimentary microfabric and geochemical composition of laminated unit I sediments. We present a schematic model depicting the above relationships and use it to propose a paleoflux scenario for laminae formation in the unit II sapropel. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.848019"! ** Samples were taken in the fluffy layer and inm the underlaing 2 cm sediment.

http://en.wikipedia.org/wiki/Box_corer Box corer https://doi.org/10.1029/1999PA000469 Formation of Holocene sedimentary laminae in the Black Sea and the role of the benthic flocculent layer DIF 9.4 2026-04-30