Results 51 to 60 of about 661,854 (360)

Two‐Dimensional Quantitative Comparison of Density Distributions in Detrital Geochronology and Geochemistry

open access: yesGeochemistry, Geophysics, Geosystems, 2021
Detrital geochronology provides insight into a broad range of Earth Science questions. However, detrital zircon U‐Pb age distributions are inherently univariate, and thus quantitative comparison methods are limited to one‐dimension (1D) and subject to ...
K. E. Sundell, J. E. Saylor
doaj   +1 more source

FINAL CONSOLIDATION AGE OF THE SOUTHERN PART OF THE SIBERIAN CRATON

open access: yesГеодинамика и тектонофизика, 2023
Petrographic, geochemical and U-Pb geochronological research studies are done into cataclastic granitoids of the southeastern part of the Irkutsk block of the Sharyzhalgay basement uplift of the Siberian craton – the uplift which is considered southern ...
T. V. Donskaya   +5 more
doaj   +1 more source

A low U/Pb souce in the Moon: U-Th-Pb systematics of lunar meteorite Yamato-793169 [PDF]

open access: yes, 1993
U-Th-Pb isotopic data were determined on mineral separates of the diabasic lunar meteorite, Yamato-793169,in order to define its age and characterize its magma source.
Misawa,Kenji   +2 more
core   +1 more source

U-Pb chronology of the Solar System's oldest solids with variable 238 U/ 235 U

open access: yes, 2016
Accurate determination of the absolute ages of the oldest Solar System objects - chondrules and Ca-Al-rich inclusions (CAIs), requires knowledge of their 238U/235U ratios.
Amelin, Yuri   +6 more
core   +1 more source

A relational database of global U–Pb ages

open access: yesGeoscience Frontiers, 2018
Abstract Enhanced understanding of how sampling techniques affect estimates of the global U–Pb age-distribution have, in turn, constrained U–Pb database design. Recent studies indicate that each continent has a unique age-distribution, as determined by zircon ages dated by the U–Pb isotope method.
openaire   +1 more source

New U-Pb age constraints on the upper Banxi Group and synchrony of the Sturtian glaciation in South China

open access: yes, 2017
The Nanhua basin in South China hosts well-preserved middle–late Neoproterozoic sedimentary and volcanic rocks that are critical for studying the basin evolution, the breakup of the supercontinent Rodinia, the nature and dynamics of the “snowball” Earth ...
Gaoyuan Song   +3 more
semanticscholar   +1 more source

Real‐World Pediatric Blinatumomab Administration: Access to Outpatient Care Delivery and Impact of a Hospital‐Dispensed Model

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Blinatumomab has been shown to be highly effective for patients with pediatric B‐ALL and has recently become standard of care therapy. Due to its past use in the clinical trial setting, there is limited information available about real‐world administration.
Katelyn Oranges   +12 more
wiley   +1 more source

Clinical Insights Into Hypercalcemia of Malignancy in Childhood

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Hypercalcemia of malignancy (HCM) is a rare but life‐threatening metabolic emergency in children that occurs in less than 1% of pediatric cancer cases, with a reported incidence ranging from 0.4% to 1.0% across different studies. While it is observed in 10%–20% of adult malignancies, pediatric HCM remains relatively uncommon.
Hüseyin Anıl Korkmaz
wiley   +1 more source

Radiometric dating of Middle Pleistocene carbonates: assessing consistency and performance of the U–Th and U–Pb dating methods [PDF]

open access: yesGeochronology
The U–Th and U–Pb dating methods are widely employed for radiometric dating of Pleistocene carbonates, such as speleothems and corals. The U–Th dating method has been progressively refined over recent decades, largely through advances in mass ...
T. J. Pollard   +13 more
doaj   +1 more source

Characterization of the noble gases and CRE age of the D'Orbigny angrite [PDF]

open access: yes, 2002
Introduction: The D’Orbigny angrite, a 16.55 kg stone, was found 1979 in Argentina [1]. Mineralogy and chemistry of this meteorite were characterized in detail [2-6]. A Pb-U-Th age of 4.559 Ga was obtained for pyroxenes by Jagoutz et al. [7].
Busemann, H.   +4 more
core  

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