Results 71 to 80 of about 305,731 (212)

The Aurora Vent Field at the Transition From Magmatic Accretion to Tectonic Extension on Gakkel Ridge: Constraints From Microseismicity and Aeromagnetic Observations

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.
Abstract The Aurora hydrothermal vent field (AVF) is the first confirmed active vent system on the Arctic Ocean seafloor, located at the western end of the ultraslow spreading Gakkel Ridge. It marks a distinctive endmember among ridge‐axis hydrothermal systems, where volcanic construction and ultramafic influence co‐exist.
Matthias Pilot, Mechita C. Schmidt‐Aursch, Graeme Eagles, Vera Schlindwein   +3 more
wiley   +1 more source

Sensitization of OSL Signals in Quartz and Provenance Implications: Insights From Multi‐Spectroscopic Analysis of Quartz From Multiple Geological Settings

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 10, October 2026.
Abstract Quartz optically stimulated luminescence (OSL) sensitivity and electron spin resonance (ESR) signals have been empirically proposed as indicators of sediment provenance. OSL sensitivity is defined as luminescence produced per unit dose (Gray: Gy) per unit mass (mg).
Monika Devi, Serban‐Constantin Grecu, Zsejke‐Réka Tóth, Daniela Constantin, Daniela Brezeanu, Anca Barla, Ion Nesterovschi, Simona Cinta‐Pinzaru, Mihai N. Ducea, Stephen J. Mojzsis, Alida Timar   +10 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

Apatite as a Proxy for Reconstructing Magma Mixing Histories in Granitoids

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.
Abstract Apatite is a common accessory mineral in granites and mafic microgranular enclaves (MMEs), and its textural and compositional characteristics can record dynamic magmatic evolution processes. Apatites from the Early Cretaceous Sanguliu granite and its MMEs in the Liaodong Peninsula exhibit pronounced compositional heterogeneities. In this study,
Xiaowen Lin, Jiahao Zheng, Wanyi Feng
wiley   +1 more source

RRS Charles Darwin Cruise 167, 23 Nov - 21 Dec 2004. Sub-seafloor physical properties at Saldanha Seamount, Mid-Atlantic Ridge, and controls on the spatial distribution of hydrothermal venting [PDF]

, 2006
Charles Darwin 167 (CD167) was a joint research project carried out by UK and Portuguese scientists from the National Oceanography Centre, Southampton, the University of Durham and the University of Lisbon.
Frerichs, N., Dias, A., Dzhatieva, Z., Sinha, M.C.   +3 more
core   +1 more source

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

Multiple Subduction–Exhumation Cycles and Episodic Hydration–Metasomatism of an Oceanic Eclogite Block: Implications for Thermal Structure Evolution and Mass Transfer at the Subduction Interface

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.
Abstract The rarity of natural rocks that specifically record the physicochemical conditions of the subduction interface strongly hampers pertinent studies on metamorphic trajectories of high‐pressure (HP) rocks and related fluid–rock interactions. This study examines an oceanic eclogite block from the Huwan shear zone in the Hong'an orogen.
Dadi Cao, Liqing Xu, Xiangxin Zhang, Haofan He, Kang Cheng   +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

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  

Reaction‐Driven Crack Propagation Controlled by Vein Extension in a Dilute Fracture System

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 10, October 2026.
Abstract Permanent mineral trapping of CO2 ${\text{CO}}_{2}$ in ultramafic rocks can be accelerated if carbonate precipitation wedges open microcracks and sustains crack growth, thereby increasing permeability and reactive surface area. We develop a vein‐extension controlled model for carbonation reaction‐driven cracking in a dilute fracture system ...
Rui Feng, John Rudnicki
wiley   +1 more source