Results 31 to 40 of about 547,241 (288)

Variability of carbonate diagenesis in equatorial Pacific sediments deduced from radiogenic and stable Sr isotopes [PDF]

, 2015
The recrystallisation (dissolution–precipitation) of carbonate sediments has been successfully modelled to explain profiles of pore water Sr concentration and radiogenic Sr isotope composition at different locations of the global ocean.
Vollstaedt, Hauke, Eisenhauer, Anton, Voigt, Janett, Hathorne, Ed C., Frank, Martin   +4 more
core   +1 more source

Properties of the yrast levels of 78-82Sr even-even isotops [PDF]

مجلة التربية والعلم, 2010
: The properties of the yrast levels of 78-82Sr even-even isotopes have been studied. The method of gamma energy over spin (E-GOS) has been used to analyze the energy levels of these isotopes which shows that the two isotopes 78 Sr and 80Sr lie in the γ-
Emad Mamdouh, Wafaa Mohammad Najeebb
doaj   +1 more source

No major temporal provenance variation on the Chinese Loess Plateau since the late Miocene — insight from stable heavy mineral ratios

Geosystems and Geoenvironment, 2022
Heavy mineral assemblages have been demonstrated effective in tracking the dust provenance younger than 500 ka on the Chinese Loess Plateau (CLP).
Haobo Zhang, Maotong Li, Wenbin Peng, Zhongbao Zhang, Junsheng Nie   +4 more
doaj   +1 more source

An industry-scale mass marking technique for tracing farmed fish escapees.

PLoS ONE, 2015
Farmed fish escape and enter the environment with subsequent effects on wild populations. Reducing escapes requires the ability to trace individuals back to the point of escape, so that escape causes can be identified and technical standards improved ...
Fletcher Warren-Myers, Tim Dempster, Per Gunnar Fjelldal, Tom Hansen, Stephen E Swearer   +4 more
doaj   +1 more source

Research Progress on the Application of Strontium Isotope Analysis Techniques in Geology: A Review

Yankuang ceshi
Strontium (Sr) isotopes have unique geochemical properties, such as time dependence and environmental sensitivity. With the development of testing technology and theoretical systems, using Sr isotopes has become a key technique in geoscience research ...
Wuhui JIA, Kai LIU, Chenghua YU, Wei ZHU, Yuefei DENG   +4 more
doaj   +1 more source

Determinação da composição isotópica de estrôncio em águas naturais: exemplos de sua aplicação em águas subsuperficiais da zona costeira na região Bragantina-PA Determination of strontium isotopic composition in natural waters: examples of application in subsurface waters of the coastal zone of Bragantina region, Pará

Química Nova, 2007
Analytical procedures used for determining the concentrations and isotope composition of strontium in subsurface waters, by mass spectrometry, are described.
Adriana Oliveira Bordalo, Candido Augusto Veloso Moura, Thomas Scheller   +2 more
doaj   +1 more source

Geochemical Mechanisms of Biomineralization from Analysis of Deep-Sea and Laboratory Cultured Corals [PDF]

, 2010
The ocean is a major component of global heat transport and represents a large exchangeable reservoir of CO₂. The importance of these effects on climate can be quantified with records of ocean temperature, chemistry and dynamics spanning past climate ...
Gagnon, Alexander C.
core   +1 more source

Barite mineralization in Kalana speleothems, Central Estonia: Sr, S and O isotope characterization [PDF]

Estonian Journal of Earth Sciences, 2017
Barite mineralization in association with calcitic speleothem precipitates in cave structures in Silurian Aeronian carbonate rocks in Kalana quarry, Central Estonia, was studied. Barite mineralization in Kalana occurs in two generations – euhedral bladed-
Mikk Gaškov, Holar Sepp, Päärn Paiste, Kalle Kirsimäe, Tõnu Pani   +4 more
doaj   +1 more source

Differentiation Between Argentine and Austrian Red and White Wines Based on Isotopic and Multi-Elemental Composition

Frontiers in Sustainable Food Systems, 2021
In this work, the characterization of white and red wines from Austria and Argentina was carried out based on the isotopic and multi-elemental profile data.
Julieta Griboff, Micha Horacek, Micha Horacek, Daniel A. Wunderlin, Magdalena V. Monferrán   +4 more
doaj   +1 more source

Enhanced continental weathering and its marine environmental effects in the late Devonian: Constraints from strontium isotopes of carbonate rocks in South China

地质科技通报, 2022
The Frasnian-Famennian extinction in the late Devonian was one of the largest mass extinction during Earth's history, which was believed to be caused by the plant landing-indued intensification of terrestrial chemical weathering and the consequent ...
Faliang Deng, Xijun Liu, Hongxia Yu, Feng Yang, Yonghai Yuan   +4 more
doaj   +1 more source