Results 211 to 220 of about 264,999 (349)

Biogeochemical, sedimentological and dinoflagellate‐based reconstruction of the Holocene palaeoenvironment of the east Limfjord, Denmark

Boreas, EarlyView.
To assess how the eastern part of the Limfjord system has changed over the Holocene, relative to the wider Limfjord and western Baltic region, a sedimentary succession spanning c. 9600–150 cal. a BP was collected from Nibe Bredning, near Sebbersund, from a shallow coastal inlet along the eastern connection between the Limfjord and the Kattegat (north ...
Gabriella M. Weiss, Jonathan P. Lewis, Paula J. Reimer, David B. Ryves, Peter Rasmussen, Jesper Olsen   +5 more
wiley   +1 more source

Volcanic glass geochemical fingerprints of the Black Sea tephra layers in the last ~60 kyr. [PDF]

Sci Data
Sunyé-Puchol I, Bolós X, Özsoy-Ünal R, Smith VC, Tavazzani L, Nazzari M, Cullen V, Bachmann O, Scarlato P, Mollo S.   +9 more
europepmc   +1 more source

Dispersal, source and glass chemistry of a third tephra unit within Iceland's Settlement Layer

Boreas, EarlyView.
Tephra layers may be studied to understand the dynamics and sequence of past explosive volcanism. In Iceland, the distinctive Settlement Layer (AD ~877) underlies almost all archaeological evidence for the Norse Settlement and is preserved in soils across Iceland and as cryptotephra overseas.
Conner A. G. Morison, Guðrún Larsen, Anthony J. Newton, Andrew J. Dugmore   +3 more
wiley   +1 more source

Mineralogical and geochemical provenance reference for turquoise from the Teghout Cu-Mo deposit in Armenia. [PDF]

Sci Rep
Shirdam B, Yang M, Meliksetian K, Grigoryan E, Yang Y, Zheng Y, Wan X, Jiang Y.   +7 more
europepmc   +1 more source

Impact of time-dependent geochemical effects on the dynamics of relative permeability: Implications for CO2 storage [PDF]

Arshad Raza, Mobeen Murtaza, Mohamed Mahmoud, Reza Rezaee, Guenther Glatz, Muhammad Shahzad Kamal, Bennet Nii Tackie-Otoo, Saad Alafnan, Arshad Khan, Mohammed Hasnain Saiyed   +9 more
openalex   +1 more source

Geochemical Society [PDF]

Elements, 2018
openaire   +1 more source

Depositional processes of varved sediments from proglacial Lago Frías since 1800 CE (North Patagonian Andes, Argentina)

Boreas, EarlyView.
The glacierized Valle Frías in Northern Patagonia is one of the best‐studied valleys in South America and includes varved sediments from Lago Frías. We complement this lacustrine record with a high‐resolution documentation of varve counts and their composition.
Bernd Zolitschka, Philipp Böning, A. Catalina Gebhardt, M. Alicia Irurzun, Wojciech Tylmann, Christoph Vogt, Claudia S. G. Gogorza   +6 more
wiley   +1 more source

Occurrence and Detection Profiles of Technology-Critical Elements (Ga, Ge, Nb, Ta and W) in Wild Mushrooms from Leicester and Leicestershire, UK. [PDF]

Toxics
Peña-Fernández A, Cámara-Pastor T, Durán GT, Lobo-Bedmar MC.   +3 more
europepmc   +1 more source

Low geochemical reactivity of cobalt and nickel in Swedish fine-textured soils [PDF]

Jon Petter Gustafsson, Johanna Rantala, Hanna Almqvist, Ann Helen Österås, Stephen Hillier   +4 more
openalex   +1 more source

Prebiotic aqueous reactions catalyzed by native nickel without hydrogen

The FEBS Journal, EarlyView.
Serpentinizing (H2‐producing) hydrothermal vents are candidate environments for metabolic origin. They generate highly reducing conditions that convert CO2 to formate and methane in abiotic reactions resembling reactions of the acetyl‐CoA pathway of CO2 fixation. They also contain natural catalysts. Native nickel (Ni0), like Fe0, Co0, and their alloys,
Carolina Garcia Garcia, Max Brabender, William F. Martin   +2 more
wiley   +1 more source