Results 71 to 80 of about 29,167 (235)

Peixe Zircon as a Quality Control Reference Material in U‐Pb Geochronology by LA‐ICP‐MS

Geostandards and Geoanalytical Research, Volume 50, Issue 2, Page 369-389, June 2026.
Key Points Peixe#0 zircon was characterised for U‐Pb geochronology using CA‐ID‐TIMS, SIMS and a long‐term LA‐ICP‐MS data set. The consistent results establish Peixe#0 as a reference material for U‐Pb quality control. Trace element heterogeneity requires careful, CL‐guided spot selection.
Margareth Sugano Navarro, Erica Martini Tonetto, Elson P. Oliveira, Mauricio Ibañez‐Mejia, Cristina Talavera, Neal J. McNaughton, Jacinta Enzweiler, Michael Wiedenbeck   +7 more
wiley   +1 more source

Geochemistry of podiform chromitite and host rocks within the Buem Structural Unit, Northwestern Benin Republic: Implications for the geodynamic evolution of the Dahomeyide orogenic belt

Results in Earth Sciences
The paper presents the geochemistry, origin and geodynamic setting of podiform chromitite and host rocks from the Buem Structural Unit (BSU) in the northwestern Benin Republic.
Daniel N. Kouagou N’Dah, Samuel B. Olobaniyi, Luc C. Adissin Glodji, Sory I.M. Konate, Elhadji Mory Traore, Daniel Kwayisi, Clement B. N’Satta, Ibrahim S. Yerima   +7 more
doaj   +1 more source

New Magnetite Reference Material for SIMS δ18O Measurements and a Study of Precision and Accuracy Due to Crystal Orientation Effects

Geostandards and Geoanalytical Research, Volume 50, Issue 2, Page 391-406, June 2026.
Key Points A new magnetite reference material (PF21mt) is available for δ18O measurements by SIMS. Reproducibility of measurement results in two laboratories suggest orientation bias of ±2‰ (2s) at 20 keV. Repeatability improves to ±1‰ (2s) when using a 13 keV protocol, suggesting reduced orientation bias. In situ isotope ratio measurements provide the
Michelle Ulrich, Daniela Rubatto, Maria Rosa Scicchitano, Benita Putlitz, Thomas Bovay   +4 more
wiley   +1 more source

Ex-situ mineral carbonation: resources, process and environmental assessment (Carmex project) [PDF]

, 2013
This article presents the main results of the Carmex project (2009-2012), whose purpose was to review the feasibility of ex-situ mineral carbonation in terms of resource availability, performance of the aqueous mineral carbonation process and life cycle ...
Augé, Thierry, Bodénan, Françoise, Bonfils, Benjamin, Boukary, Aissa, Bourgeois, Florent, Chiquet, Pierre, Guyot, François, Julcour-Lebigue, Carine, Lassin, Arnault, Petiot, Charlotte, Tremosa, Joachim   +10 more
core  

Magnetic Signature of Oceanic Transform Faults and Their Fracture Zones

Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract Oceanic transform faults (TFs) offset mid‐ocean ridges, juxtaposing different‐aged crust and causing fracture zones (FZ) crossing ocean basins. Mounting evidence challenges the consensus that TFs are conservative plate boundaries, instead supporting the existence of extensional tectonics and two phases of magmatism.
Fei Zhou, Ingo Grevemeyer, Jérôme Dyment, Lars H. Ruepke, Christian Hübscher   +4 more
wiley   +1 more source

Petrology and geochemistray of Imam-Zadeh Hashem mafic and ultramafic bodies, southern Guilan province

Journal of Economic Geology, 2013
Mafic and ultramafic plutonic igneous bodies, with small and big outcrops, between Shemshak rock units (Jurassic) are observed in east of Imam Zadeh Hashem, in southern Guilan province.
Mojgan Salavati, Reza Fahim Guilani
doaj  

Exploring gold mineralization in altered ultramafic rocks in south Abu Marawat, Eastern Desert, Egypt. [PDF]

Sci Rep, 2023
Eldougdoug A, Abdelazeem M, Gobashy M, Abdelwahed M, Abd El-Rahman Y, Abdelhalim A, Said S.   +6 more
europepmc   +1 more source

Occurrence and mineral chemistry of high pressure phases, Portrillo basalt, southcentral New Mexico [PDF]

Inclusions of clinopyroxenite, kaersutiteclinopyroxenite, kaersutite-rich inclusions, wehrlite and olivine-clinopyroxenite together with megacrysts of feldspar, kaersutite and spinel are found loose on the flanks of cinder cones, as inclusions within ...
Hoffer, J. M., Ortiz, T. S.
core   +1 more source

Interior Rifting Coupled With Peripheral Subduction in the Rodinia Supercontinent: New Insights From the Tarim Craton

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 5, May 2026.
Abstract After assembly, supercontinents are shaped by internal rifting and peripheral subduction. However, the geodynamic relationship between these two processes and their respective contributions to supercontinent breakup remain poorly understood.
Shipeng Liu, Rongfeng Ge, Teng Zhou, Yang Si, Yue Wang   +4 more
wiley   +1 more source

Oxide-silicate petrology and geochemistry of subducted hydrous ultramafic rocks beyond antigorite dehydration (Central Alps, Switzerland). [PDF]

Contrib Mineral Petrol, 2023
Vieira Duarte JF, Pettke T, Hermann J, Piccoli F.   +3 more
europepmc   +1 more source