Caracterizacion geoquimica de las capas ricas en materia organica registradas durante el estadio isotopico marino 7 en el mar de Alboran (mediterraneo occidental)  [Geochemical characterization of the organic-rich layers registered during the marine isotope stage 7 in the Alboran Sea, West Mediterranean]

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Alternate Title(s): Geochemical characterization of the organic-rich layers registered during the marine isotope stage 7 in the Alboran Sea, West Mediterranean
Author(s): Gonzalez-Mora, B.; Sierro, F. J.
Author Affiliation(s): Primary:
Universidad de Salamanca, Departamento de Geologia, Salamanca, Spain
Volume Title: Comunicaciones presentadas en la 43 sesion cientifica de la Sociedad Geologica de España
Volume Author(s): Huertas Coronel, M. J., editor; Sancho Marcen, C.; Colombo Piñol, F.
Source: Geogaceta, Vol.43, p.111-114; 43. sesion centifica de la Sociedad Geologica de España, Huelva, Spain, Nov. 30, 2007, edited by M. J. Huertas Coronel, C. Sancho Marcen and F. Colombo Piñol. Publisher: Sociedad Geológica de España, Salamanca, Spain. ISSN: 0213-683X
Note: In Spanish with English summary. 17 refs.; illus.
Summary: Samples from the Alboran Sea (Western Mediterranean) were studied in order to characterise the organic-rich layers recorded during marine isotope stage 7 from a geochemical point of view. X-ray fluorescence measurements were carried out at a 1 cm-resolution and variations in terrigenous and biogenic elements were observed during the whole studied interval (245-190 kyr), suggesting more carbonate production during warmer periods, and more arrival of terrigenous material during lower-sea level substages. Organic-rich layers were characterized by high biogenic barium and low Si/Al, which can be interpreted as increasing surface productivity or better preservation of the organic material, and more river discharge due to more abundant precipitations.
Year of Publication: 2007
Research Program: ODP Ocean Drilling Program
Key Words: 02 Geochemistry; 07 Marine Geology and Oceanography; Alboran Sea; Alkaline earth metals; Barium; Biogenic processes; Calcium; Leg 161; MIS 7; Manganese; Mediterranean Sea; Metals; ODP Site 977; Ocean Drilling Program; Organic compounds; Strontium; West Mediterranean
Coordinates: N360154 N360154 W0015719 W0015719
Record ID: 2016031017
Copyright Information: GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Instituto Geologico y Minero de Espana, Madrid, Spain