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Johanna Anjar, Naki Ak?ar, Eiliv A. Larsen, Astrid Lyså, Shasta Marrero, Nasim Mozafari and Christof Vockenhuber
Jan Mayen is a small volcanic island situated 550 km north of Iceland. Glacial sediments and landforms are relatively common on the island but, so far, only a few of them have been dated. In this study, we present and discuss 89 36Cl dates of primarily g...
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Ricardo Varela,Miguel A.S. Basei,Carlos A. Cingolani,Oswaldo Siga Jr.,Claudia R. Passarelli
Isotopic data are presented for rocks of the Andean crystalline basement at 40°S, in Neuquén and Río Negro provinces. The methods used were U-Pb in zircon (crystallization ages of plutonic rocks), K-Ar in micas and U-Pb in titanite (metamorphism and cool...
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Gerhard Wörner,Konrad Hammerschmidt,Friedhelm Henjes-Kunst,Judith Lezaun,Hans Wilke
Pág. 205 - 240
K-Ar and Ar/Ar ages from magmatic rocks of northern Chile (18-22°S) describe duration and extent of the Tertiary and Quaternary magmatic evolution and date major tectonic events in northernmost Chile. This paper summarizes new K-Ar and Ar-Ar mineral and ...
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Eva Darenova, Tomá? Fabiánek, Marian Pavelka
Efflux of CO2 from soil is a major component of the terrestrial ecosystem and plays an important role in the global carbon cycle. In this study the efflux of CO2 from soil was measured in three stands of Norway spruce. We investigated differences in the ...
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Seungwook Lim and Sungchul Yang
This paper describes the development of the constitutive model for early-aging viscoelastic concrete. And this paper provides the work related to material testing and modeling for identifying the required constitutive properties of early-age concrete.
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Han Zhang, Yadong Wu, Weihan Zhang and Yuling Zhang
The precise ascertainment of stellar ages is pivotal for astrophysical research into stellar characteristics and galactic dynamics. To address the prevalent challenges of suboptimal accuracy in stellar age determination and limited proficiency in apprehe...
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Chaloemporn Ponprasit, Yong Zhang, Xiufen Gu, Andrew M. Goodliffe and Hongguang Sun
Groundwater vulnerability assessment helps subsurface water resources management by providing scientific information for decision-makers. Rigorous, quantitative assessment of groundwater vulnerability usually requires process-based approaches such as gro...
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Ruy Paulo Philipp, Ubiratan Ferrucio Faccini, Cesar Leandro Schultz, Gustavo Zvirtes, Matheus Philippe Bruckmann, Ernesto Lavina, Joice Cagliari, Andrea Ritter Jelinek, Renata Guimarães Netto, Adriano Roessler Viana and Miguel Angelo Stipp Basei
Zircon U-Pb geochronology was applied to investigate the provenance, depositional ages, and paleogeography of the southwestern Gondwana in detrital and ash fall sediments from Carboniferous to Jurassic succession of the southern Paraná Basin. Four detrit...
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Kerstin Nilsson, Clas-Håkan Nygård, Tove Midtsundstad, Peter Lundqvist and Joanne Crawford
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Qian Liu, Limei Tang, Ling Chen and Peng Gao
Seamounts are features generated by hot spots and associated intraplate volcanic activity. The geochemical characteristics of igneous rocks constituting seamounts provide evidence of important details of dynamic processes in the Earth, such as mantle mag...
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Marcelo García,Germán Aguilar,María Pía Rodríguez,James Metcalf
Pág. 313 - 326
In the Western Cordillera of northern Chile, the Proterozoic-Paleozoic Belén Metamorphic Complex is covered by late Oligocene-early Miocene (25-18 Ma) rocks, and both units are involved in west-vergent contractional deformation, which results in exhumati...
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Antonis Vlassopoulos, Theano Mikrou, Artemis Papantoni, Georgios Papadopoulos, Maria Kapsokefalou, Athanasios Mallouchos and Chrysavgi Gardeli
Background: Terpenoid compounds, despite their established antioxidant ability, are neglected as potential glycation regulators. Methods: In-vitro model systems of lysine (0.1 M) with glucose (0.1 M and 1 M) were incubated at 80 °C and 100 °C for 3 h in ...
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Leda Sanchez Bettucci,Umberto Giuseppe Cordani,Judith Loureiro,Elena Peel,Santiago Fort,Kei Sato
Pág. 442 - 471
A U-Pb SHRIMP zircon geochronological study was carried out in the Nico Pérez Terrane in the central-eastern portion of Uruguay with the aim of constraining its geological evolution and its cratonic affinity. Nico Pérez Terrane is made up by a mosaic of ...
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Lili Zhou, Shubin Li, Peng Huang, Sizu Lin, Shalom Daniel Addo-Danso, Zhihui Ma and Guochang Ding
To guide the cultivation of superior Chinese fir plantlets, we designed an L16(4)4 orthogonal experiment to determine how leaf age and exogenous hormones influence key growth processes in leaf cuttings. Hormone concentration and treatment duration signif...
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Francisco Hervé,Mauricio Calderón,Mark Fanning,Robert Pankhurst,Carlos W. Rapela,Paulo Quezada
Pág. 301 - 317
Previous work has shown that Devonian magmatism in the southern Andes occurred in two contemporaneous belts: one emplaced in the continental crust of the North Patagonian Massif and the other in an oceanic island arc terrane to the west, Chaitenia, which...
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Adam H. Love and Andy Zdon
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Adam H. Love and Andy Zdon
Estimating groundwater recharge in arid or semiarid regions can be a difficult and complex task, since it is dependent on a highly variable set of spatial and temporal hydrologic parameters and processes that are dependent on the local climate, the land ...
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Sebastian Herrera, Luisa Pinto, Katja Deckart, Javier Cortés, Javier Valenzuela
Pág. 87 - 122
Crustal thickening by horizontal shortening and associated deformation have been broadly considered as
prime mechanisms for mountain building in the Central Andes of western South America. However, timing and structural
style of Andean orogeny in norther...
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Eva Darenova, Tomá? Fabiánek, Marian Pavelka
Efflux of CO2 from soil is a major component of the terrestrial ecosystem and plays an important role in the global carbon cycle. In this study the efflux of CO2 from soil was measured in three stands of Norway spruce. We investigated differences in the ...
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Derya Mumcu Küçüker,Emin Zeki Baskent
Pág. e005
Aim of study: Exploring the potential effects of various forest management strategies on the ability of forest ecosystems to sequester carbon and produce water has become of great concern among forest researchers. The main purpose of this study is to eva...
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