Results 151 to 160 of about 6,013 (277)

Distribution and rare earth element abundances of apatite in Bennu samples determined by synchrotron X‐ray fluorescence spectroscopy

Meteoritics &Planetary Science, EarlyView.
Abstract Apatite is often the most rare earth element (REE)‐enriched mineral in chondritic meteorites. REE enrichment and fractionation levels in apatite grains can give insight into the aqueous fluids in which they formed and the conditions prevailing within the host body. In this study, we applied synchrotron X‐ray fluorescence (SXRF) spectroscopy to
B. J. Tkalcec, P. Tack, T. Baert, J. Herthogs, B. Vekemans, B. Bazi, E. De Pauw, M. Di Michiel, G. Falkenberg, J. Garrevoet, G. Libourel, M. Portail, V. Guigoz, C. Collin, H. C. Connolly Jr., D. S. Lauretta, L. Vincze, F. E. Brenker   +17 more
wiley   +1 more source

A Noachian hydrosphere component in the 4.1-Ga Martian meteorite Teghaza 001. [PDF]

Sci Adv
Saper L, Liu Y, Guan Y, Ma C, Bell EA, Agee CB.   +5 more
europepmc   +1 more source

Antifouling capacity of substrate materials and their effects on settlement and post‐settlement survival of Acropora palmata and Orbicella faveolata

Restoration Ecology, EarlyView.
Abstract Introduction In coral reef restoration, sexual reproduction is a key methodology to enhance coral population recovery. However, post‐settlement survival remains a major bottleneck, as spat are particularly vulnerable to competition with fouling organisms.
Laura C. Arango‐Carvajal, Rodolfo Silva, Miriam Estevez, Gregorio Vargas, Lizette I. Quan‐Young, Anastazia T. Banaszak   +5 more
wiley   +1 more source

Rare Earth Element Potential in the Araí Rift Metavolcanic, Central Brazil: Gamma‐Ray Signatures, Mineralogy and Exploration Implications

Terra Nova, EarlyView.
ABSTRACT Although central Brazil hosts significant ion‐adsorption rare earth element (REE) deposits associated with A‐type granites, their coeval volcanic counterparts have been largely overlooked as exploration targets. This study demonstrates that acidic metavolcanic rocks of the Araí Group share strong radiometric, geochemical and mineralogical ...
Yuri Ribeiro, Nilson Francisquini Botelho, Valmir da Silva Souza, Diego Guilherme da Costa Gomes   +3 more
wiley   +1 more source

Spatial distribution of 6s² lone electron pair in Pb₄Na(PO₄)₃ and stereochemical activity of the 6s² electron cloud in lead-bearing apatites. [PDF]

Acta Crystallogr B Struct Sci Cryst Eng Mater
Hirano K, Okudera H.
europepmc   +1 more source

Tectonic Forcing of Diachronous Salt Deposition During the Badenian Salinity Crisis Revealed by U–Pb Dating of Tephra Overlying Tuzla Basin Evaporites

Terra Nova, EarlyView.
ABSTRACT During the Middle Miocene Badenian Salinity Crisis (BSC), extensive evaporites formed across different tectonic settings in the Central Paratethys. Limited age constraints hamper evaporite correlation and identification of driving mechanisms. Here, we use U–Pb dating of zircon by LA‐ICP‐MS from tephra overlying the Tuzla Basin evaporites.
Nevena Andrić‐Tomašević, Oleg Mandic, Wout Krijgsman, Armin Zeh, Stjepan Ćorić, Sejfudin Vrabac   +5 more
wiley   +1 more source

Efficacy of Zinc-, Copper-, and Silver-Doped Fluorapatite as Bacteriophobic Surfaces for Percutaneous Osseointegrated Device Applications. [PDF]

ChemNanoMat
Jeyapalina S, Steyl SK, Elahi P, Shea J, Sundramurti R, Agarwal J, Beck JP.   +6 more
europepmc   +1 more source

Apatite

Journal of Ion Exchange, 1994
openaire   +3 more sources

Implications of Isomorphism in the Family of Apatite Compounds. [PDF]

Int J Mol Sci
Lasota A, Gorzelak M, Bis E, Biliński P, Gieburowski K, Kłapeć W, Tymczyna-Borowicz B, Łobacz M, Pawlicz J, Jarzębski M, Wieruszewski M, Turżańska K, Jabłoński M, Kuczumow A.   +13 more
europepmc   +1 more source

Low Percent Copper Doping Limits Bacterial Adhesion on Fluorapatite-Based Bone Scaffolds. [PDF]

J Biomed Mater Res B Appl Biomater
Elahi P, Steyl SK, Griffin A, Beck JP, Agarwal J, Shea J, Jeyapalina S.   +6 more
europepmc   +1 more source