Results 31 to 40 of about 1,035,856 (262)

ZIRCON IN HIGH‐MG DIORITE OF THE CHELYABINSK MASSIF (SOUTH URALS): MORPHOLOGY, GEOCHEMICAL SIGNATURE, AND PETROGENESIS IMPLICATIONS

Геодинамика и тектонофизика, 2019
The article is focused on the morphology, trace element composition, U‐Pb and Lu‐Hf systems in zircon in high‐Mg diorite of the Chelyabinsk granitoid massif.
T. A. Osipova, G. A. Kallistov, M. V. Zaitseva   +2 more
doaj   +1 more source

Detrital zircon LA-ICPMS U-Pb and Lu-Hf signature from the Mesoarchean Keonjhar Quartzite: Implications for the nature of Archean continental crust and geodynamics

Geosystems and Geoenvironment, 2022
The ∼715 m thick matured siliciclastics of the Keonjhar Quartzite, North of the homonymous town, Singhbhum Craton, eastern India, represents one of the best-preserved examples of sedimentation during Mesoarchean time. The LA-ICPMS U-Pb ages with peaks at
Saheli De, C.A. Rosiere, Joydip Mukhopadhyay   +2 more
doaj   +1 more source

Combined U-Pb and Lu-Hf isotope analyses by laser ablation MC-ICP-MS: methodology and applications

Anais da Academia Brasileira de Ciências, 2010
The Lutetium-Hafnium isotopic system represents one of the most innovative and powerful tools for geochronology and isotopic studies. Combined U-Pb and Lu-Hf in situ analyses on zircon by LA-MC-ICP-MS permit to characterize isotopically the host magma ...
Massimo Matteini, Elton L. Dantas, Marcio M. Pimentel, Bernhard Bühn   +3 more
doaj   +1 more source

Apatite Triple Dating (Lu–Hf, U–Pb, FT) Constrains Deformation and Cooling in the Coompana and Madura Provinces, Western Australia [PDF]

Lithosphere
Combined apatite Lu–Hf, U–Pb, and fission track (AFT) triple dating affords the opportunity to investigate the ~60 and 730°C thermal history of a study area.
Alejandra Bedoya, Stijn Glorie, Martin Hand, Christopher L. Kirkland, David E. Kelsey, Angus Nixon, Geoff Fraser   +6 more
doaj   +1 more source

Geochemical characteristics of the Tertiary and Quaternary eolian deposits in eastern Gansu province: Implications for provenance and weathering intensity

Dizhi lixue xuebao, 2021
An eolian deposit section named Shaozhai, which has been developed since the Tertiary in eastern Gansu province, was analyzed for major-trace elements and Sm-Nd isotopic compositions to explore the relationship for the provenance and weathering intensity
QI Lin, QIAO Yansong, LIU Zongxiu, WANG Yan, PENG Shasha   +4 more
doaj   +1 more source

Low-Energy Electron Elastic Total Cross Sections for Ho, Er, Tm, Yb, Lu, and Hf Atoms

Atoms, 2020
The robust Regge-pole methodology wherein is fully embedded the essential electron-electron correlation effects and the vital core polarization interaction has been used to explore negative ion formation in the large lanthanide Ho, Er, Tm, Yb, Lu, and Hf
Zineb Felfli, Alfred Z. Msezane
doaj   +1 more source

Development of laser ablation collision/reaction cell Lu-Hf geochronology [PDF]

, 2023
The work conducted in this thesis has led to the successful development of a micro-analytical approach to Lu-Hf geochronology. In order to achieve this, the novel method utilises inductively coupled plasma quadrupole tandem mass spectrometry ICP-Q-MS/MS (
Simpson, Alexander David
core  

Validation of digestion and element separation methods and a new data reduction program (IsotopeHf®) for Lu-Hf isotope dilution analysis by MC-ICP-MS

Revista Mexicana de Ciencias Geológicas, 2017
The Lu-Hf isotope system is not only an important geochrono- meter but also a powerful tool for petrogenetic studies. To determine reliable analytical results of this system from rock and mineral samples, a protocol is established that includes ...
Reneé González-Guzmán, Bodo Weber, María D. Tazzo-Rangel, Luigi Solari   +3 more
doaj   +1 more source

The Thermal Properties of L1₂ Phases in Aluminum Enhanced by Alloying Elements

Metals, 2021
The L12 type trialuminide compounds Al3M possess outstanding mechanical properties, which enable them to be ideal for dispersed strengthening phases for the high-strength thermally stable Al based alloys.
Jihang Lan, Zhaoqun Chen, Linghong Liu, Qingzhou Zhang, Mengdong He, Jianbo Li, Xiaofang Peng, Touwen Fan   +7 more
doaj   +1 more source

HF pump-induced electron heating and artificial airglow at high latitudes: Aspect angle dependence [PDF]

, 2002
Large electron temperature increases (~3000 K) in the ionospheric F-region, produced by powerful HF wave injection, were measured using the EISCAT incoherent scatter radar near Tromsø, Norway, on 7 October 1999.
Rietveld, M. T., Leyser, T. B., Kosch, M. J., Blagoveshchenskaya, N. F., Kornienko, V. A.   +4 more
core   +4 more sources