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• W4205538963 endingPage "152977" @default.
• W4205538963 startingPage "152977" @default.
• W4205538963 abstract "Rock weathering and pedogenesis are fundamental processes for element mobility in terrestrial bio-geochemical cycles and for the regulation of primary productivity in adjacent coastal marine ecosystems. Here, soils developed from volcanic ash under extreme climate conditions could play a particular role. We therefore investigated rock weathering, soil formation and the associated mobilization of trace elements and micronutrients in a pristine South Patagonian ecosystem. Weathered and unweathered basement lithologies, tephra of the 4.216 kyrs BP Mt. Burney eruption and four soil profiles are considered. The approach combines mineralogical (XRD, SEM) and inorganic geochemical (XRF, ICP-OES/MS) with organic geochemical analyses (TOC, TN, δ13C, δ15N, DOC extracts) of representative samples. Chemical weathering is quantified by mass balance calculations and 14C age constraints allow a correlation of pedogenic processes with the paleoenvironmental history of the area. Our data document that pedogenesis with initial peat formation occurred since ~2.5 kyrs BP. In these acidic peaty Andosols, intensive alteration of volcanic glass mobilized large quantities of elements, considerably surpassing leachates provided by basement rock weathering. Clay production is limited in favor of the formation of amorphous Al- and crystalline Fe-(hydr)oxides. However, tephra alteration, soil organic matter turnover rates, enhanced dissolved organic carbon export, and Fe-/Al-(hydr)oxide precipitation are closely linked and ultimately controlled by rainfall-induced water-level fluctuations, highlighting the dominant influence of the southern westerly wind belt. The transport of mobilized trace elements and micronutrients adsorbed onto suspended colloids (dissolved organic carbon, Al-humus complexes and Fe-(hydr)oxides) is redox-pH-dependent, highly variable and ultimately regulated by westerly intensity. Broader implications of this work include a new perspective on the climate-controlled micronutrient delivery for primary productivity in South Patagonian fjords, which is strongly affected by Andosol formation. Furthermore, a careful evaluation of 'ordinary' geochemical proxies in regional paleoenvironmental archives is needed to account for these unique pedogenic processes." @default.
• W4205538963 created "2022-01-25" @default.
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• W4205538963 date "2022-04-01" @default.
• W4205538963 modified "2023-10-18" @default.
• W4205538963 title "Element mobility related to rock weathering and soil formation at the westward side of the southernmost Patagonian Andes" @default.
• W4205538963 cites W1515526034 @default.
• W4205538963 cites W1543619409 @default.
• W4205538963 cites W1577162698 @default.
• W4205538963 cites W1598001360 @default.
• W4205538963 cites W1808174800 @default.
• W4205538963 cites W1880555926 @default.
• W4205538963 cites W1919391689 @default.
• W4205538963 cites W1925240535 @default.
• W4205538963 cites W1968287511 @default.
• W4205538963 cites W1969486586 @default.
• W4205538963 cites W1969707165 @default.
• W4205538963 cites W1972779873 @default.
• W4205538963 cites W1975455445 @default.
• W4205538963 cites W1976785310 @default.
• W4205538963 cites W1982377741 @default.
• W4205538963 cites W1986416876 @default.
• W4205538963 cites W1987811605 @default.
• W4205538963 cites W1990455796 @default.
• W4205538963 cites W1994664019 @default.
• W4205538963 cites W1997142214 @default.
• W4205538963 cites W2012243030 @default.
• W4205538963 cites W2016988723 @default.
• W4205538963 cites W2019433683 @default.
• W4205538963 cites W2028129771 @default.
• W4205538963 cites W2032930544 @default.
• W4205538963 cites W2036677156 @default.
• W4205538963 cites W2037888432 @default.
• W4205538963 cites W2040824971 @default.
• W4205538963 cites W2043144818 @default.
• W4205538963 cites W2046892047 @default.
• W4205538963 cites W2049511000 @default.
• W4205538963 cites W2054275107 @default.
• W4205538963 cites W2058974445 @default.
• W4205538963 cites W2059675029 @default.
• W4205538963 cites W2064336143 @default.
• W4205538963 cites W2066931531 @default.
• W4205538963 cites W2067027528 @default.
• W4205538963 cites W2068248597 @default.
• W4205538963 cites W2068815439 @default.
• W4205538963 cites W2068926771 @default.
• W4205538963 cites W2071408133 @default.
• W4205538963 cites W2074719429 @default.
• W4205538963 cites W2075493516 @default.
• W4205538963 cites W2075923299 @default.
• W4205538963 cites W2075969538 @default.
• W4205538963 cites W2077736973 @default.
• W4205538963 cites W2078885776 @default.
• W4205538963 cites W2078999497 @default.
• W4205538963 cites W2083814172 @default.
• W4205538963 cites W2084889620 @default.
• W4205538963 cites W2087937118 @default.
• W4205538963 cites W2090152130 @default.
• W4205538963 cites W2091133956 @default.
• W4205538963 cites W2091968069 @default.
• W4205538963 cites W2093608053 @default.
• W4205538963 cites W2094692032 @default.
• W4205538963 cites W2097713228 @default.
• W4205538963 cites W2114224511 @default.
• W4205538963 cites W2120171797 @default.
• W4205538963 cites W2127267423 @default.
• W4205538963 cites W2147683582 @default.
• W4205538963 cites W2147876477 @default.
• W4205538963 cites W2152630117 @default.
• W4205538963 cites W2153108306 @default.
• W4205538963 cites W2156582807 @default.
• W4205538963 cites W2157053038 @default.
• W4205538963 cites W2161436803 @default.
• W4205538963 cites W2166867605 @default.
• W4205538963 cites W2183737462 @default.
• W4205538963 cites W2293349959 @default.
• W4205538963 cites W2302424013 @default.
• W4205538963 cites W2344850143 @default.
• W4205538963 cites W2346191044 @default.
• W4205538963 cites W2357774671 @default.
• W4205538963 cites W2400901224 @default.
• W4205538963 cites W2414192184 @default.
• W4205538963 cites W2464007829 @default.
• W4205538963 cites W2473594134 @default.
• W4205538963 cites W2491955056 @default.
• W4205538963 cites W2526433560 @default.
• W4205538963 cites W2589005865 @default.

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