Results 41 to 50 of about 16,559 (147)

Zircon U–Pb Dating and Lu-Hf Isotope of the Retrograded Eclogite from Chicheng, Northern Hebei Province, China

open access: yesShock and Vibration, 2021
We report zircon U–Pb ages and Lu-Hf isotopic data from two sample of the retrograded eclogite in the Chicheng area. Two groups of the metamorphic zircons from the Chicheng retrograded eclogite were identified: group one shows characteristics of ...
Xu Kong   +3 more
doaj   +1 more source

Surface modification effect on the repair bond strength of hybrid and non-hybrid ceramics

open access: yesBMC Oral Health
Background This study investigated the appropriate surface treatment protocols for repairing various hybrid and non-hybrid ceramics. Methods Ceramic samples with a thickness of 2 mm were prepared from two resin-hybrid CAD/CAM blocks (Vita Enamic (hybrid ...
Naeeme Naderi   +4 more
doaj   +1 more source

Lu-Hf Isotopic Systematics and Its Applications for Geology

open access: yesThe Journal of the Petrological Society of Korea, 2014
The Lu-Hf isotope system, coupled with the advent of multiple collector inductively coupled plasma source mass spectrometry, is now widely utilized as a tracer for geological processes. The paper presents a comprehensive review on the principles of the Lu-Hf isotopes, and its current and potential applications to both geochronology and petrogenesis ...
openaire   +2 more sources

A synthesis of available detrital zircon data from Turkey, Cyprus and Greek peninsula

open access: yesGeoscience Data Journal
This paper describes the assembly of an updated dataset of detrital zircon geochronology and Lu–Hf isotopes for Turkey, Cyprus and Greek peninsula. This first version of the dataset documented 286 samples with detrital zircon U–Pb data and 70 samples ...
Guohui Chen   +3 more
doaj   +1 more source

The Barreiro suite in the central Ribeira Belt (SE-Brazil): a late Tonian tholeiitic intraplate magmatic event in the distal passive margin of the São Francisco Paleocontinent

open access: yesBrazilian Journal of Geology, 2019
New geochemical, U-Pb, Lu-Hf and Sr-Nd data from the Barreiro Suite metabasites in comparison with enclaves within the distal Andrelândia Group and the orthogranulites of the Juiz de Fora Complex are presented. Geochemical data suggest intraplate setting,
Monica Heilbron   +9 more
doaj   +1 more source

Salmonella Group D1 Subdural Empyema Mimicking Subdural Hematoma: A Case Report

open access: yesInfection and Drug Resistance, 2022
Hao-Fang Lu,1,2 Chung-Tai Yue,3 Woon-Man Kung4,5 1Division of General Medicine, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Foundation, New Taipei City, 23142, Taiwan; 2School of Medicine, College of Medicine, National Taiwan University, Taipei, 10002 ...
Lu HF, Yue CT, Kung WM
doaj  

Lu–Hf Isotope Systematics of Carbonatites [PDF]

open access: yesGoldschmidt Abstracts, 2020
Ladislav Polák   +4 more
openaire   +1 more source

Continental Crust Rejuvenation Across the Paleo‐Mesoarchean Transition Resulted From Elevated Mantle Geotherms

open access: yesGeophysical Research Letters
The increase in initial Hf isotopes identified in early Mesoarchean detrital zircon is commonly interpreted as a reflection of the geodynamic transition from stagnant‐lid to mobile‐lid tectonics.
Gui‐Mei Lu   +5 more
doaj   +1 more source

Basement Domains Recorded in the Zircon Geochemistry of the Northern Sierra Nevada Batholith

open access: yesGeochemistry, Geophysics, Geosystems
The northern Sierra Nevada batholith was emplaced into and across a series of accreted crustal belts that vary considerably in their ages and lithologies. Unlike batholithic segments to the south, the northern Sierra comprises smaller, spatially distinct
Joella Campbell   +2 more
doaj   +1 more source

Combined Chemical Separation of Lu, Hf, Sm, Nd, and REEs from a Single Rock Digest:  Precise and Accurate Isotope Determinations of Lu−Hf and Sm−Nd Using Multicollector-ICPMS

open access: yesAnalytical Chemistry, 2001
A combined procedure for separating Lu, Hf, Sm, Nd, and rare earth elements (REEs) from a single sample digest is presented. The procedure consists of the following five steps: (1) sample dissolution via sodium peroxide sintering; (2) separation of the high field strength elements from the REEs and other matrix elements by a HF-free anion-exchange ...
Kleinhanns, IC   +5 more
openaire   +7 more sources

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