Results 51 to 60 of about 166,341 (292)

Detrital zircon typology and U/Pb geochronology for the Miocene Ladrilleros-Juanchaco sedimentary sequence, Equatorial Pacific (Colombia) : new constraints on provenance and paleogeography in northwestern South America [PDF]

, 2017
Typology and internal texture analyses were performed on detrital zircons obtained from the Miocene sandstones of the Ladrilleros-Juanchaco sedimentary sequence (Colombia, Equatorial Pacific).
Barbosa-Espitia, A.A., Muñoz-Valencia, J. A., Osorio-Granada, E., Pardo-Trujillo, A., Restrepo-Moreno, S. A., Trejos-Tamayo, R. A.   +5 more
core   +3 more sources

Survival Outcomes and Complications Among Canadian Children With Retinoblastoma: A Population‐Based Report From CYP‐C

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Retinoblastoma (RB) is the most common pediatric ocular cancer, yet population‐based data on survival and risk factors remain limited. This study aimed to describe survival in a large national RB cohort and identify predictors of death and complications.
Samuel Sassine, Ofélie Trudeau‐Ferrin, Caroline Laverdière, Patrick Hamel, Rosanne Superstein, Bénédicte Koukoui, Carole Provost, Paul C. Nathan, Vijay Ramaswamy, Furqan Shaikh, Brenda Gallie, Ashwin Mallipatna, Stephanie Kletke, Helen Dimaras, Hallie Coltin   +14 more
wiley   +1 more source

Personalized Selumetinib Dosing in Pediatric Neurofibromatosis Type 1: Insights From a Pilot Therapeutic Drug Monitoring Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Objective To evaluate selumetinib exposure using therapeutic drug monitoring (TDM) in pediatric patients with neurofibromatosis type 1 (NF1) and plexiform neurofibromas (PN), assess interpatient pharmacokinetic variability, and explore the relationship between drug exposure, clinical response, and adverse effects.
Janka Kovács, Zoltán Köllő, Balázs Gellért Karvaly, Mahmoud Obeidat, Rita Nagy, Péter Hegyi, Brigitta Teutsch, Eszter Tuboly, Miklós Garami   +8 more
wiley   +1 more source

U-Pb (ID-TIMS) geochronological method and “in-situ” SIMS zircon dating: possibilities and constrains

Литосфера, 2020
Research subject and methods. The work is based on a comparative study of the data obtained by the authors and those published in literature on U-Pb ID-TIMS and “in-situ” isotopic examination of zircons extracted from a number of Ural geological objects (
Yu. L. Ronkin, A. V. Maslov, S. Sindern
doaj   +1 more source

Mineralization age and genesis of the makeng-style iron deposits in the Paleo-Pacific tectonic domain of South China: In situ LA-ICPMS garnet U-Pb chronological and geochemical constraints

Frontiers in Earth Science, 2023
To reveal the genesis of Makeng-style iron polymetallic deposits from SE China in the paleo-Pacific tectonic domain, a new analytical method of LA-ICPMS garnet U-Pb dating and rare Earth element analysis was conducted for the Makeng, Luoyang, Dapai and ...
Sen Wang, Sen Wang, Sen Wang, Ke Cao, Da Zhang, Jin-Jun Yi, Bo-Jie Hu, Jing Yang, Jing Yang, Jing Yang, Meng-Ying Cai, Yao-Yao Zhang, Yuan Yuan, Tian-Wang Pan   +13 more
doaj   +1 more source

U–Pb ages of angrites

Geochimica et Cosmochimica Acta, 2008
Abstract Precise U–Pb ages, determined with double spike ( 202 Pb– 205 Pb) thermal ionization m1ass spectrometry, are reported for angrites Angra dos Reis (AdoR), Lewis Cliff 86010 (LEW), and D’Orbigny. Nineteen of 23 acid-washed pyroxene fractions from these meteorites and whole rock fractions from D’Orbigny contain between 0.5 and 1.3 pg of total ...
openaire   +2 more sources

A Triassic to Cretaceous Sundaland–Pacific subduction margin in West Sarawak, Borneo [PDF]

, 2017
Metamorphic rocks in West Sarawak are poorly exposed and studied. They were previously assumed to be pre-Carboniferous basement but had never been dated. New 40Ar/39Ar ages from white mica in quartz-mica schists reveal metamorphism between c.
Boudagher-Fadel, M.K., Breitfeld, Hans, Forster, M.A., Galin, Thomson, Hall, Robert   +4 more
core   +2 more sources

Geological structure of the Pre-jurassic basement of the Yugansk-Koltogorsk zone of the West Siberia

Литосфера, 2018
Subject of the study. We have carried out an additional exploration on petrography, petrochemistry, geochemistry, geochronology and biostratigraphy of rock complexes of the Yugansk-Koltogorsk (central part of West Siberia). Materials and methods.
Kirill S. Ivanov, Stepan V. Berzin, Nadezhda V. Vakhrusheva, Nikolai P. Kostrov, Olga E. Pogromskaya   +4 more
doaj   +1 more source

U-Pb Isotopic Dating of Monazite in Granite from the Changjiang Uranium Orefield, Northern Guangdong Province and Its Geological Significance

Yankuang ceshi, 2022
BACKGROUND The Changjiang uranium ore field in the southern margin of the Zhuguangshan complex pluton is a typical granite-type uranium ore field in China. Zircon U-Pb dating has been used to date ore-bearing granites. However, due to the high content of
CHEN Yan, PAN Jia-yong, ZHONG Fu-jun, WAN Jian-jun, YAN Jie, LIU Wen-quan, LI Hai-dong   +6 more
doaj   +1 more source

Timing of diagenesis and very low-grade metamorphism in the eastern sector of the Sierra de Cameros (Iberian Range, Spain): a U–Pb SHRIMP study on monazite [PDF]

, 2009
The Sierra de Cameros is an intracontinental orogen and represents the north-western part of the Iberian Range in Northern Spain. It comprises a thick sequence of syn-rift continental sediments (mainly sandstones and carbonates) deposited during ...
Aleinikoff, Bollinger, Cabella, Casas-Sainz, Casquet, Cherniak, Del Río, Evans, Evans, Frantz, Förster, Gabudianu Radulescu, Gil-Imaz, Goldberg, Janots, Janots, Kempe, Krenn, Lanzirotti, Lev, Mantilla-Figueroa, Mas, Masuda, Mata, Mata, Mata, Milodowski, Montel, Pan, Pan, Parrish, Rasmussen, Rasmussen, Rasmussen, Rubatto, Sawka, Smith, Spear, Tera, Tischer, Wilby, Williams, Wing   +42 more
core   +2 more sources