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999			_c50735 _d49387
005			20230119165456.0
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245	0	0	_aHolocene vs Anthropocene sedimentary records in a human-altered estuary: The Pasaia case (northern Spain) / _cMaría Jesús Irabien, Alejandro Cearreta, José Gómez-Arozamena, Ane García-Artola.
260			_a[S.l.]: _bElsevier, _c2020
336			_atexto (visual)
337			_3en línea _aelectrónico
506			_aRestringido
520			_aThis work deals with the microfaunal (benthic foraminifera) and geochemical (trace metals, 14C, 210Pb, 137Cs, and 239/240Pu) study of two boreholes (1200 and 1400 cm length) and three subtidal sediment cores (38–58 cm length) collected in the Pasaia estuary (northern Spain). Foraminiferal assemblages in the Holocene deposits depend on the paleogeographic setting, while different species appear in the Anthropocene sediments as a consequence of the physical transformation of the estuary into an estuarine port. Regarding the geochemical composition, the impact of ancient mining activities (probably of Roman age) can be recognized in the form of peaked values of Pb and Zn. However, older sediments exhibit relatively low contents of trace metals which are conditioned by hydrodynamic patterns and lithogenic inputs. In the Anthropocene record, the influence of these factors is displaced by the decisive role of human activities, as evidenced by the enhanced concentrations of trace metals and the occurrence of artificial radioisotopes and glass microspheres. Additionally, this work provides information about trace metal contamination that may be of interest to corresponding authorities in order to set priorities of action and to take specific measures to prevent further degradation.
524			_aIrabien, M.J., Cearreta, A., Gómez-Arozamena, J., García-Artola, A., 2020. Holocene vs Anthropocene sedimentary records in a human-altered estuary: The Pasaia case (Northern Spain). Marine Geology 429, 1-15. https://doi.org/10.1016/j.margeo.2020.106292
591			_aGEOLOGIA
592			_aGEOLOGIA
650			_aForaminíferos bentónicos _91437204
650			_aTrazas de metales _91437205
650			_aDatación por radioisótopos _91437206
650			_aRegistros sedimentarios _91437207
650			_aImpacto humano _91437208
650			_aEstuario de Pasia _91437209
700	1		_91437199 _aIrabien, María Jesús
700	1		_99068 _aCearreta, Alejandro _d1960-
700	1		_aGómez-Arozamena, José _91437210
700	1		_91437196 _aGarcía-Artola, Ane
856			_uhttps://www.sciencedirect.com/science/article/abs/pii/S0025322720301808#!
942			_2cdu _cPUBL