Results 91 to 100 of about 2,046 (219)

PROVENANCE OF CARBONIFEROUS CLASTIC DEPOSITS IN THE CENTRAL PART VOLGA-URAL PETROLEUM PROVINCE (REPUBLIC OF TATARSTAN) REVEALED BY PETROGRAPHY AND U-PB (LA-ICP-MS) DETRITAL ZIRCON ISOTOPIC DATA

Геодинамика и тектонофизика
This study presents the results of an integrated petrographic and U-Pb geochronological investigation of Lower to Middle Carboniferous sandstones from the Volga-Ural petroleum province.
K. R. Minnebaev, A. V. Kulikova, P. D. Kotler, D. K. Nourgaliev, Ya. Ya. Saetgaleeva   +4 more
doaj   +1 more source

Shrimp U-Pb Ages of Detrital Zircons in Sargurs

Journal Geological Society of India, 1993
A. P. Nutman, B. Chadwick, M. Ramakrishnan, M. N. Viswanatha   +3 more
openaire   +1 more source

Petrogenesis and Tectonic Evolution of Cenozoic Magmatism in the Southernmost Northern Andes: Insights From Zircon Petrochronology

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 8, August 2026.
Abstract This study integrates new zircon U–Pb ages, zircon εHf(t)–δ18O isotopic data, and whole‐rock geochemistry to refine the temporal and spatial framework of magmatism in the southern Northern Andes (SNA) from ∼65 to 6 Ma. The San Lucas, Catamayo, Portachuela, and Gonzanamá batholiths and magmatic suites, along with Late Miocene plutons, display ...
J. Iglesias, C. Witt, L. C. Sandoval Espinel, M. Zattin, M. Poujol, O. Bruguier, O. Poma, M. J. Hernández, O. Averbuch, M. Seyler, D. Bosch, F. Chanier, S. Ventalon, C. Liorzou, V. Bosse   +14 more
wiley   +1 more source

From ID-TIMS U-Pb dating of single monazite grain to APT-nanogeochronology: application to the UHT granulites of Andriamena (North-Central Madagascar)

BSGF - Earth Sciences Bulletin
The causes of U-Pb isotopic discordance documented by Paquette et al. (2004) in monazite grains from the ultra-high temperature (UHT) granulite of the Andriamena unit of Madagascar are re-evaluated in the light of nanoscale crystal-chemical ...
Turuani M.J., Seydoux-Guillaume A.-M., Laurent A.T., Fougerouse D., Harley S.L., Reddy S.M., Goncalves P., Saxey D.W., Michaud J., Montel J.-M., Nicollet C., Paquette J.-L.   +11 more
doaj   +1 more source

Eocene to Miocene U‐Pb Geochronology Evolution of the Rio Grande Rise, Southwestern Atlantic: A Paleoceanographic Approach

Paleoceanography and Paleoclimatology, Volume 41, Issue 8, August 2026.
Abstract The Rio Grande Rise (RGR) is a major submarine feature in the South Atlantic that plays an important role in regional oceanographic dynamics. This study presents new U‐Pb geochronology of sedimentary rocks from the RGR, offering direct age constraints on carbonate and apatite embedded within Fe‐Mn crusts and associated foraminifera fossils ...
Giovanna Orletti Del Rey, Roberto Ventura Santos, Lucieth Cruz Vieira, Isabela Moreno Cordeiro Sousa, Antônio Cosme Del Rey, Guilherme de Oliveira Gonçalves, Elton Luiz Dantas, Paola Ferreira Barbosa, Eugênio Pires Frazão   +8 more
wiley   +1 more source

Architecture of the Patrimonio Fault System and the Miocene Post‐Orogenic Extension in Alpine Corsica (France)

Tectonics, Volume 45, Issue 8, August 2026.
Abstract The exhumation of Alpine Corsica is the result of Oligocene‐Miocene lithospheric back‐arc extension in the wake of the eastward migration of Apenninic subduction. Although the geometry, kinematics and timing of ductile detachments are well constrained, the brittle extension leading to final exhumation of Alpine Corsica is less documented.
Simone Masoch, Michele Fondriest, Giulio Di Toro, Giancarlo Molli, Nereo Preto, Lorenzo Tavazzani, Francesca Prando, Giorgio Pennacchioni   +7 more
wiley   +1 more source

Early–Late Carboniferous Tectonic Evolution of the Northern North China Craton (NE China): Constraints From Zircon Ages, Geochemistry, and Crustal Thickness Modeling

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 8, August 2026.
Abstract The tectonic evolution of the northern margin of the North China Craton (NCC) remains controversial. In this study, we obtained zircon U–Pb ages, geochemical data, and Sr–Nd isotopic data for volcanic rocks, and detrital zircon ages for sedimentary rocks from the Yufutun, Tongqigou, and Benxi formations in central‐southern Jilin Province, NE ...
Yunfei Chang, Qingxiang Du, Huachun Gan, Xiaoli Shen, Zuozhen Han, Xiaoxue Hou, Huicong Zhang   +6 more
wiley   +1 more source

A comparison of zircon U-Pb age results of the Red Clay sequence on the central Chinese Loess Plateau. [PDF]

Sci Rep, 2016
Gong H, Nie J, Wang Z, Peng W, Zhang R, Zhang Y.   +5 more
europepmc   +1 more source

Highly Enriched and Heterogeneous Mantle Signals Recorded in Mantle Pyroxenite Veins

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 8, August 2026.
Abstract The Earth's mantle is inherently heterogeneous, reflecting ongoing mantle depletion and crustal recycling driven by plate tectonics. Radiogenic isotopes in oceanic basalts are commonly used to characterize mantle reservoirs, but the full chemical diversity of mantle‐derived melts may be obscured by magma mixing during melt transport and ...
Zhen‐Yu Zhang, Chuan‐Zhou Liu, Yan Liang, Tong Liu, Chang Zhang, Bo‐Da Liu, Wen‐Bin Ji, Wei‐Qi Zhang, Ke Huang   +8 more
wiley   +1 more source

Two Distinct Growth Styles of Riedel Shear Zones in Cratonic Strike‐Slip Fault System, Tarim Basin, NW China

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 8, August 2026.
Abstract The kinematics and progressive evolution of Riedel shear zones have been extensively studied, yet the factors controlling their distinct evolutionary styles in natural settings remain debated. Understanding such fracture network architecture has great implications, such as predicting subsurface fluid flow and assessing seismic hazards.
Jiajun Chen, Zhanfeng Qiao, Tianfu Zhang, Uwe Ring, Shaoying Chang, Peng Cao, Mengxiu Wang, Yifan Du   +7 more
wiley   +1 more source