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Data report: wavelength-dispersive X-ray fluorescence–based geochemical data, Site U1418, IODP Expedition 341, Gulf of Alaska ArchiMer
Zindorf, Mark; Marz, Christian; Schnetger, Bernhard.
Integrated Ocean Drilling Program (IODP) Site U1418 was drilled during Expedition 341 in 2013. The site is situated on the Surveyor Fan, one of the largest deep-sea fans in the world. The site was drilled to 972 m below seafloor, and a sediment record spanning ~1.2 My was attained. For this study, 285 sediment samples were analyzed for bulk geochemical composition using wavelength-dispersive X-ray fluorescence (XRF). Records for the major elements Al, Ca, Fe, K, Mg, Mn, Na, P, Si, and Ti and minor elements As, Ba, Co, Cr, Cu, Mo, Ni, Nb, Pb, Rb, Sr, Y, V, U, Zn, and Zr are presented, as well as data for total carbon and total organic carbon analyzed by elemental analyzer.
Tipo: Text Palavras-chave: Integrated Ocean Drilling Program; JOIDES Resolution; Expedition 341; Southern Alaska Margin Tectonics; Climate and sedimentation; Site U1418; Wavelength-dispersive X-ray fluorescence.
Ano: 2020 URL: https://archimer.ifremer.fr/doc/00628/74030/73358.pdf
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Environmental and coastline changes controlling Holocene carbon accumulation rates in fjords of the western Strait of Magellan region ArchiMer
Ríos, Francisco; Kilian, Rolf; Lange, Carina B.; Baeza-urrea, Oscar; Arz, Helge W.; Zindorf, Mark; De Pol-holz, Ricardo; Lamy, Frank.
Organic-rich sediments of the southernmost Chilean Pacific coast and its fjord system constitute an important component of the global marine carbon budget. Sediment records from Trampa and Caribe bays and Churruca fjord in the western Magellan fjord system have been analyzed with the goal of understanding the factors controlling carbon accumulation and its regional fluctuation throughout the Holocene. The individual response in paleoproductivity at the different sites and related variations in accumulation rates document a very complex interplay among local and regional-scale environmental changes, and coastline elevation across the Holocene. Shallow sill basins close to the Pacific coast, as the ones studied here, are particularly sensitive to these...
Tipo: Text Palavras-chave: Patagonian fjord sediments; Paleoproductivity; Carbon accumulation; Biogenic carbonate; Marine transgression; Holocene.
Ano: 2020 URL: https://archimer.ifremer.fr/doc/00614/72576/71536.pdf
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