Composition of bottom sediments from the Guinea Basin

Autoria(s): Lavrov, Vadim M; Savel'yeva, KP
Cobertura

MEDIAN LATITUDE: 1.303562 * MEDIAN LONGITUDE: -4.098309 * SOUTH-BOUND LATITUDE: -1.001000 * WEST-BOUND LONGITUDE: -11.016000 * NORTH-BOUND LATITUDE: 4.333300 * EAST-BOUND LONGITUDE: -1.636000
Data(s)

16/11/1971
Resumo

Geomorphology of the Guinea Basin is described along with sediments from cores collected on the abyssal plain, within the abyssal hill zone, and in the eastern part of the Chain Fracture Zone. Stratigraphic differentiation of deep-sea sediments was based on diatom analysis, geochemical and lithological data. Holocene and Pleistocene were identified by these criteria. The lower boundary of Holocene is was found from a marked decrease in CaCO3 concentration and total diatom count. Mineral and chemical compositions are given for coarse silt fraction of various Late Pleistocene sediments. It is shown that this facial complex is determined by tectonic position of the Guinea Basin.
Formato

application/zip, 5 datasets
Identificador

https://doi.pangaea.de/10.1594/PANGAEA.753701

doi:10.1594/PANGAEA.753701
Idioma(s)

en
Publicador

PANGAEA
Direitos

CC-BY: Creative Commons Attribution 3.0 Unported

Access constraints: unrestricted
Fonte

Supplement to: Lavrov, Vadim M; Savel'yeva, KP (1971): Deep-water sediments in the Guinea Basin. Oceanology, 11, 551-562
Palavras-Chave #<10 µm; >1 mm; 1-0.1 mm; 100-50 µm; 50-10 µm; Al2O3; Aluminium oxide; Ap; Apatite; Archive of Ocean Data; ARCOD; Biotite; bSiO2; Bt; CaCO3; Calcium carbonate; Calcium oxide; Calculated; CaO; Carb HM; Carb L; Carbon, organic, total; Carbonates in heavy mineral fraction; Carbonates light; Chl HM; Chl L; Chlorite, light; Chlorite in heavy mineral fraction; Clay agg; Clayey aggregates; Clinopyroxene; Comment; Corundum; Counting, binocular; Cpx; Crn; Depth; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Depth bot; Depth top; Disthene; Double leaching by 5% Na2CO3; Ep; Epidote; Event; Fe2O3; Feldspar; FeO; Fsp; Garnet; Grab; GRAB; Grain size analysis after Petelin (1967, Nauka, Moscow); Grt; Gulf of Guinea; H2O; Hbl; heavy; Heavy minerals; HM; Hornblende; hygroscopic; Iron oxide, Fe2O3; Iron oxide, FeO; K2O; light; Light minerals; Limonite; Lm; LM; LOI; Loss of ignition; Loss on ignition; Magnesium oxide; Manganese oxide; Marcasite; MgO; Mikhail Lomonosov; ML10; ML10_827; ML10_829; ML10_837; ML10_846; ML10_847; ML10_848; ML10_850; MnO; Mrc; MULT; Multiple investigations; n<1.54; Na2O; Ol; Olivine; Opal, biogenic silica; Opx; Ore; Organic remains; Org rem; Orthopyroxene; P2O5; Phosphorus oxide; Pl; Plagioclase; Potassium oxide; Quartz; Qz; Rock fragm; Rock fragments; Sediment; Sediment type; Separation with use of heavy (2.9) liquid; Silicon dioxide; SiO2; Size fraction < 0.010 mm; Size fraction > 1 mm, gravel; Size fraction 0.050-0.010 mm; Size fraction 0.100-0.050 mm; Size fraction 1-0.1 mm; SO3; Sodium oxide; Sphene; Spn; St; Staurolite; Sulphite; Sum; TiO2; Titanium oxide; TOC; Tourmaline; Tr/Act; Tremolite/Actinolite; Tur; Volcanic glass, heavy; Volcanic glass, light; Volc glass h; Volc glass l; Water in rock; Wet chemistry; Zircon; Zo; Zoisite; Zrn
Tipo

Dataset
Acesso ao item digital