Results 221 to 230 of about 162,633 (257)

Mercury cycling during the last glacial period in Arctic Lake El'gygytgyn, NE Russia

Journal of Quaternary Science, EarlyView.
ABSTRACT Tectonic processes play a key role in the global mercury (Hg) cycle on geological timescales, by mobilising Hg from deep Earth reservoirs to the surface. These natural fluxes also introduce a dynamic component to the terrestrial Hg cycle that can interact with other environmental signals and influence Hg delivery to sedimentary records.
Alice R. Paine, Joost Frieling, Bernd Wagner, Martin Melles, Volker Wennrich, Tamsin A. Mather, Stuart A. Robinson, David M. Pyle   +7 more
wiley   +1 more source

Water geochemistry in the Bozhi-Dabei area, Tarim Basin and its implications for natural gas accumulation in deep basin. [PDF]

Sci Rep
Chen J, Fan Y, Jia W, Zhang H, Xu J, Chen N, Mo T, Hou X, Wang Y, Peng P.   +9 more
europepmc   +1 more source

Carbon isotope geochemistry of organic matter in volcanic paleosols constrains paleo‐environmental variations

Journal of Quaternary Science, EarlyView.
ABSTRACT The Fiorano quarry paleosol developed within the Colli Albani volcanic district (Italy) in the time interval bracketed by the deposition of the Pozzolanelle pyroclastic‐flow unit (365 ± 4 ka) and the emplacement of the Capo di Bove lava flow (277 ± 2 ka).
Eduardo Di Marcantonio, Luca Aldega, Luigi Dallai, Mario Gaeta, Fabrizio Marra   +4 more
wiley   +1 more source

Activity and diversity of sulfate- and methane-based pathways of anaerobic chitin and N-acetylglucosamine degradation in marine sediments. [PDF]

Appl Environ Microbiol
Lim S, Murali R, Speth DR, Szabo RE, Cordero OX, Orphan VJ.   +5 more
europepmc   +1 more source

First finding of Icelandic tephra in Czechia: Vedde Ash identified in palaeolake sediments of Stará Jímka

Journal of Quaternary Science, EarlyView.
ABSTRACT In this study, we report the first documented occurrence of the Icelandic Vedde Ash (VA) in the Bohemian Forest, identified within palaeolake sediments from Stará Jímka, Czechia, representing the first Icelandic tephra layer identified in Czechia.
Verena Meier, Simon A. Larsson, Martin Racek, Daniel Vondrák   +3 more
wiley   +1 more source

Coupled geomorphic and climate-driven biogeochemical processes regulate soil organic carbon stocks in agricultural terraces. [PDF]

Sci Adv
Zhao P, Fallu DJ, Doetterl S, Cucchiaro S, Tarolli P, Pears BR, Lang A, Mainka MF, Ou X, Whitaker J, Wang Z, Brown AG, Six J, Van Oost K.   +13 more
europepmc   +1 more source

A new piece in the puzzle: The palaeoecological significance of bryozoans over 7000 years in Daidokutsu Cave (Okinawa, Japan)

Journal of Quaternary Science, EarlyView.
ABSTRACT Submarine caves are cryptic, climatically sensitive habitats with long‐term ecological dynamics that are poorly understood. We present the first palaeoecological analysis of bryozoans from Daidokutsu Cave (Okinawa, Japan), based on a sediment core spanning approximately the last 7000 years.
Emanuela Di Martino, Wing‐Tung Ruby Chiu, Kazuhiko Fujita, Akihisa Kitamura, Antonietta Rosso, Paul D. Taylor, Moriaki Yasuhara   +6 more
wiley   +1 more source

Distinct chalcophile-element inheritance from subducted continental crust in metasomatized mantle. [PDF]

Sci Adv
Wang Z, Wang X, Xu H, Zhang J, Jenner FE, Foley S, Ma L, Chen K, Sun J, Zong K, Liu Y, Li J, Zhang J, Hu Z.   +13 more
europepmc   +1 more source

Climate‐modulated accumulation and erosion of sediments in the Rodderberg crater basin for the last 439 ka (East Eifel Volcanic Field, Germany)

Journal of Quaternary Science, EarlyView.
ABSTRACT Glacial/interglacial climate cycles since marine isotope stage (MIS) 12 influenced the discontinuous and 73 m‐long sediment record from the volcanic crater of Rodderberg in the East Eifel Volcanic Field, Germany. High‐resolution grain size and geochemical data have been valued by numerical dating techniques (radiocarbon and luminescence dating,
Bernd Zolitschka, Ines Hogrefe, An‐Sheng Lee, Maarit Kalliokoski, Manfred Frechen   +4 more
wiley   +1 more source

Reply to: Should we return to probability distributions to represent interfacial reactivity? [PDF]

Nat Commun
Ilgen AG, Borguet E, Geiger FM, Gibbs JM, Grassian VH, Jun YS, Kabengi N, Kubicki JD.   +7 more
europepmc   +1 more source