Results 91 to 100 of about 12,582 (239)

Magma mixing in the Karamaili granite belt of Eastern Junggar: evidence from A2-type granites and their mafic microgranular enclaves

Frontiers in Earth Science
The Karamaili Orogenic Belt forms an essential part of the southernmost margin of the Eastern Junggar Orogenic Belt. The Late Carboniferous granitic belt of the Karamaili belt provides a valuable natural setting for studying the evolution of silicic ...
Yafei Sun, Yafei Sun, Bowen Zhang, Yuan Yao, Yuan Yao, Xinzhong Zhan, Yaxiaer Yalikun, Yacong Wang   +7 more
doaj   +1 more source

Crustal Structure Across the Okavango Rift, Botswana: The SEISORZ Wide‐Angle Seismic Experiment

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 1, January 2026.
Abstract The Okavango Rift Zone (ORZ) is an incipient continental rift in Botswana at the terminus of the Southwestern Branch of the East African Rift System. The lack of syn‐rift magmatism and tectonic processes overprinting pre‐rift structures provide an opportunity to investigate incipient‐stage rift processes and the role of pre‐existing structures
J. Pablo Canales, Lucky Moffat, Kebabonye Laletsang, Daniel Lizarralde, Steven Harder, Galen Kaip, Estella A. Atekwana, Motsoptse P. Modisi   +7 more
wiley   +1 more source

Deep Sources of Recent Volcanism in Armenia Inferred From Ambient Noise Tomography

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 1, January 2026.
Abstract We perform Rayleigh wave ambient noise tomography to investigate crustal seismic velocity structure and sources of volcanism in Armenia. Armenia, a key part of the tectonically and volcanically active Caucasus‐Anatolia region, is actively being deformed by the ongoing Arabian‐Eurasian continental collision.
Kh. Meliksetian, L. Sargsyan, I. Koulakov, N. Toghramadjian, N. Belovezhets, Y. Berezhnev, G. Navasardyan, E. Grigoryan, A. Vasilevsky, E. Sahakyan   +9 more
wiley   +1 more source

East Meets West: The Trace of the Mesoproterozoic Kibaran Event in the Mantle Lithosphere Beneath Eastern Tanzania

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 1, January 2026.
Abstract We present elemental geochemistry and multiple isotopic systematics (Re‐Os, Lu‐Hf, Sm‐Nd and Sr) for mantle peridotite xenoliths from Lashaine in northern Tanzania. We use the data to examine how the major Proterozoic tectono‐thermal events that affected the crust of the western Tanzanian craton are imprinted on the lithospheric mantle in the ...
Sheng‐Hua Zhou, Qiao Shu, Sally A. Gibson, Hong‐Fu Zhang, Jing‐Jing Zhu, Hélène Legros, D. Graham Pearson   +6 more
wiley   +1 more source

Mantle dynamics and genesis of mafic magmatism in the intermontane Pacific Northwest [PDF]

, 2004
Victor E. Camp, Martin E. Ross
openalex   +1 more source

Mountain Degradation Mechanisms on Io Based on Geologic Mapping of the Cocytus Montes Region From JunoCam Imagery

Journal of Geophysical Research: Planets, Volume 131, Issue 1, January 2026.
Abstract Periodic high‐resolution imagery of Io is essential for understanding its surface evolution, from volcanic eruptions to tectonic deformation to large‐scale mass wasting. Juno flybys in 2023 and 2024 obtained imagery of the surface with the JunoCam imager at 1.8 km/pixel spatial resolution, comparable to global observations from the Galileo ...
C. H. Seeger, K. de Kleer, D. A. Williams, J. E. Perry, A. G. Davies, D. M. Nelson   +5 more
wiley   +1 more source

Synchronized Eruptions on Io: Possible Evidence of Interconnected Subsurface Magma Reservoirs

Journal of Geophysical Research: Planets, Volume 131, Issue 1, January 2026.
Abstract On 27 December 2024, Juno's JIRAM (Jovian InfraRed Auroral Mapper) instrument observed an unprecedented volcanic event in Io's southern hemisphere, covering a vast region of ∼65,000 km2, near 73°S, 140°E. Within the imaged region, only one hot spot was previously known (Pfd454).
A. Mura, R. Lopes, F. Nimmo, S. Bolton, A. Ermakov, J. T. Keane, F. Tosi, F. Zambon, R. Sordini, J. Radebaugh, J. Rathbun, W. McKinnon, S. Goossens, M. Paris, M. Mirino, A. Cicchetti, G. Piccioni, R. Noschese, G. Sindoni, C. Plainaki   +19 more
wiley   +1 more source

Stratigraphy of Carbonate‐Bearing Rocks at the Margin of Jezero Crater, Mars: Evidence for Shoreline Processes?

Journal of Geophysical Research: Planets, Volume 131, Issue 1, January 2026.
Abstract Martian carbonate‐bearing rocks are compelling targets for exploration because they preserve detailed records of past aqueous processes, climate, and habitability. The Margin unit in Jezero crater is a distinct olivine‐ and carbonate‐bearing unit stratigraphically underlying the western fan, lining the inner margin of the western crater rim ...
Alexander J. Jones, Sanjeev Gupta, Robert Barnes, Briony H. N. Horgan, Kenneth H. Williford, Gerhard Paar, Kathryn. M. Stack, Bradley J. Garzcynski, Eleni Ravanis, Candice C. Bedford, Justin I. Simon, Athanasios Klidaras, Linda C. Kah, James F. Bell, Justin Maki, Stephen W. Lokier, Adrian Brown, Nathan R. Williams, Sanna Alwmark, Jorge I. Núñez, Fred Calef, Larry Crumpler, Alicia Vaughan, Libby R. W. Ives, Sam Gwizd, Ken Farley, Christian Tate, Nicolas Randazzo, Olivier Beyssac, Gwénaël Caravaca   +29 more
wiley   +1 more source

Petrogenesis and Ni–Cu sulphide potential of mafic–ultramafic rocks in the Mesoproterozoic Fraser Zone within the Albany–Fraser Orogen, Western Australia

, 2016
Wolfgang D. Maier, R.H. Smithies, Catherine Spaggiari, Stephen J. Barnes, Christopher L. Kirkland, Sheng-Hong Yang, Yann Lahaye, O. Kiddie, Colin M. MacRae   +8 more
openalex   +1 more source

Formation and Alteration of Olivine‐Carbonate Rocks Within Jezero Crater as Constrained by In Situ Visible/Near‐Infrared Multispectral Images

Journal of Geophysical Research: Planets, Volume 131, Issue 1, January 2026.
Abstract Olivine‐ and carbonate‐bearing rocks are key exploration targets on Mars because of the information they can provide about magma evolution and source characteristics, implications for surface water availability and climate, and their biosignature preservation potential.
E. Ravanis, C. C. Bedford, B. Horgan, B. Garczynski, A. Vaughan, J. R. Johnson, M. Rice, A. J. Jones, S. Fagents, A. Klidaras, S. Gupta, J. Núñez, K. Lapo, E. A. Cloutis, J. F. Bell III, R. C. Wiens, A. Brown   +16 more
wiley   +1 more source