Results 1 to 10 of about 36,721,275 (294)

²³⁴U/²³⁸U Disequilibrium along stylolitic discontinuities in deep Mesozoic limestone formations of the Eastern Paris basin: evidence for discrete uranium mobility over the last 1–2 million years [PDF]

Hydrology and Earth System Sciences, 2004
The (234U/238) equilibrium state of borehole core samples from the deep, low-permeability limestone formations surrounding the target argilite layer of the Meuse/Haute-Marne experimental site of the French agency for nuclear waste management -ANDRA-
P. Deschamps, P. Deschamps, P. Deschamps, C. Hillaire-Marcel, C. Hillaire-Marcel, J.-L. Michelot, J.-L. Michelot, R. Doucelance, R. Doucelance, B. Ghaleb, B. Ghaleb, S. Buschaert, S. Buschaert   +12 more
doaj  

Zircon U-Pb age, geochemical characteristics, and tectonic implications of the early Permian ultrabasic dykes in the Harlik Mountain, east Tianshan, Xinjiang

Dizhi lixue xuebao
Objective  During multiple stages of magmatic activity in the Harlik Mountains of the east Tianshan, extensive granitic and mafic dyke swarms were formed.
DU Xiaofei, WANG Wei, ZHANG Chuanlin, MA Huadong, ZHU Bingyu, QIU Lin   +5 more
doaj   +1 more source

Laser Ablation-Inductively Coupled Plasma-Mass Spectrometric Analysis Methods of Melt Inclusions and Its Geological Applications

Yankuang ceshi, 2013
Melt inclusions in phenocrysts play a very important role in petrological research for reserving the only direct information available on the temperature, pressure and chemical compositions of the magmatic system at the time that the host minerals ...
ZHAO Ling-hao, ZHAN Xiu-chun, HU Ming-yue, FAN Chen-zi, SUN Dong-yang, LIU Chuan-bao   +5 more
doaj  

Geological age of the Yunyang dinosaur eggs revealed by in-situ carbonate U-Pb dating and its scientific implications

Frontiers in Earth Science
The Cretaceous Period, marked by global events such as volcanic activity, oceanic anoxic episodes, and the end-Cretaceous mass extinction, has been extensively studied in marine records.
Qingmin Chen, Xing Cheng, Xing Cheng, Jian Wang, Bi Zhao, Bi Zhao, Bi Zhao, Shukang Zhang, Youfeng Ning, Gaohong Wang, Kaikai He, Wenshuo Zhang, Dongxiang Yu, Jiangli Li, Jiangli Li, Yarui Zou, Yarui Zou, Gang Chen, Min Li, Hai Cheng, Hai Cheng   +20 more
doaj   +1 more source

In situ Sr isotope analyses by LA-MC-ICP-MS of igneous apatite and plagioclase from magmatic rocks at the CPGeo-USP

Brazilian Journal of Geology
: This contribution describes the successful implementation of in situ Sr isotope analyses by LA-MC-ICP-MS at the CPGeo-USP. The choice for an analytical configuration using measurements of half-masses allows the accurate assessment of lanthanide ...
Patricio Montecinos Munoz, Adriana Alves, Rogério Guitarrari Azzone, Pablo Cordenons, Sandra Morano, Walter Sproesser, Solange de Souza   +6 more
doaj   +1 more source

High spatial resolution (10-50 μm) analysis of Sr isotopes in rock-forming apatite by LA-MC-ICP-MS.

J Anal At Spectrom, 2023
Buzenchi A, Moreira H, Bruguier O, Bosch D, Dhuime B.   +4 more
europepmc   +1 more source

In situ Ba Isotopes Analyses in Barites Using LA-MC-ICP-MS [PDF]

Goldschmidt Abstracts, 2020
Shenghua Zhang, Ming Li, Wen Zhang, Tao Luo, Qian Ni, Zhaochu Hu   +5 more
openaire   +1 more source

LA-MC-ICP-MS dating of zircon from chromitite of the Archean Bangur Gabbro Complex, Orissa, India – Ambiguities and constraints

Geologica Acta, 2015
The Mesoarchean chromitites in the Singhbhum craton provide the main source of chromium in India. We report here results of dating zircon grains that were found in the chromitite of ultramafic rocks belonging to the southern part of the Archean Baula ...
P. V. SUNDER-RAJU, E. HANSKI, Y. LAHAYE
doaj  

Progress and Application of Mass Spectrometry Techniques for Single Particle Analysis in Nuclear Safeguard

Zhipu Xuebao
The nuclear Non-proliferation Treaty (NPT) is one of the cornerstones regulating the international order. To make sure that all the member states fulfill their obligation under the treaty, the International Atomic Energy Agency (IAEA) has constructed a ...
Li-ping WANG, Wei-hua XIE, Peng-hui XIONG, Si-wei SHI, Ling ZHANG, Zhen QIN   +5 more
doaj   +1 more source

Constraining Geogenic Sources of Boron Impacting Groundwater and Wells in the Newark Basin, USA

Hydrology
The Newark Basin comprises Late Triassic and Early Jurassic fluvio-lacustrine rocks (Stockton, Lockatong, Passaic, Feltville, Towaco, and Boonton Formations) and Early Jurassic diabase intrusions and basalt lava flows.
Larbi Rddad, Steven Spayd
doaj   +1 more source