Results 261 to 270 of about 51,586 (326)

Ductile Crustal Flow Facilitates Intraplate Volcanism: Seismic Evidence From Tengchong, China

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 8, August 2025.
Abstract The mechanisms and processes driving intraplate volcanism remain incompletely understood despite significant advances in recent decades. Here, we use high‐resolution multiparameter full‐waveform inversion to image the three‐dimensional seismic structure beneath the Tengchong volcanic region in southwestern China. Our model reveals a pronounced
Xingpeng Dong, Kai Yang
wiley   +1 more source

Lacustrine sedimentation patterns at the Northern Antarctic Peninsula and surroundings as a response to late Holocene and Modern Climate changes. [PDF]

Sci Rep
Evangelista H, Verkulich S, Mavlyudov B, Souza Echer MP, Licinio MV, Dercon G, García-Rodríguez F, Neto AA, Kusch S, Abuchacra RC, Oaquim ABJ, Gonçalves SJ, Pushina Z, Shimizu MH, Heiling M, Slaets J, Resch C, Castillo A, Gruber R.   +18 more
europepmc   +1 more source

Termination of Laurentia's Rapid Plate Motion at the Start of the Grenvillian Orogeny

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 8, August 2025.
Abstract Late Mesoproterozoic to Neoproterozoic sedimentary sequences within the Lake Superior region preserve critical paleogeographic records of the position of Laurentia spanning from the end of Midcontinent Rift extension through to the end of the Grenvillian Orogeny.
Anthony J. Fuentes, Luke M. Fairchild, Eben B. Hodgin, Tadesse Alemu, Nicholas Swanson‐Hysell   +4 more
wiley   +1 more source

Oceanic Anoxic Event 2 triggered by Kerguelen volcanism. [PDF]

Nat Commun
Walker-Trivett CA, Kender S, Bogus KA, Littler K, Edvardsen T, Leng MJ, Lacey J, Riding JB, Millar IL, Wagner D.   +9 more
europepmc   +1 more source

Constraining the Source Craters of Apollo Impact Melts

Journal of Geophysical Research: Planets, Volume 130, Issue 8, August 2025.
Abstract Interpreting the age distribution of Apollo samples to determine the early bombardment history of the Moon has been fraught with controversy, and the question of how much material from large impact basins such as Imbrium is present in the Apollo sample collection remains unresolved. Here, we model impact melt production and transportation over
A. M. Blevins, D. A. Minton, Y. H. Huang, J. Du, M. M. Tremblay, C. I. Fassett   +5 more
wiley   +1 more source

Out‐of‐Sequence Nucleation in a Blueschist From Syros, Greece

Journal of Metamorphic Geology, Volume 43, Issue 6, Page 641-659, August 2025.
ABSTRACT Two samples of garnet + glaucophane + chloritoid + phengite + paragonite + quartz + epidote + rutile schist from the Cycladic Blueschist Unit of Syros, Greece, have been examined in detail in order to constrain the paragenetic sequence and to infer the processes and time scales for metamorphic recrystallization.
Frank S. Spear, Megan M. Koch
wiley   +1 more source

Early Triassic super-greenhouse climate driven by vegetation collapse. [PDF]

Nat Commun
Xu Z, Yu J, Yin H, Merdith AS, Hilton J, Allen BJ, Gurung K, Wignall PB, Dunhill AM, Shen J, Schwartzman D, Goddéris Y, Donnadieu Y, Wang Y, Zhang Y, Poulton SW, Mills BJW.   +16 more
europepmc   +1 more source

Long‐Term Radiogenic Heating by Abortively Erupted Basalts Triggers 120 Ma Lunar Volcanism

Geophysical Research Letters, Volume 52, Issue 14, 28 July 2025.
Abstract The mantle source and formation mechanism of the recently discovered ∼120 Ma lunar volcanic glass beads (VGBs) in Chang'e‐5 samples remain elusive. By systematically comparing the compositions of ∼120 Ma VGBs with those of ancient Apollo VGBs, we propose a distinctive metasomatized mantle source characterized by low‐Ti but enriched in Na2O ...
Qian W. L. Zhang, Yi Chen, Bin Su, Jia‐Hui Liu, Qiu‐Li Li, Xian‐Hua Li   +5 more
wiley   +1 more source

A slab window in the south rim of the Parece-Vela Basin. [PDF]

Sci Rep
Zhen Z, Dong X, Lintao Z.
europepmc   +1 more source

Shallow Tectonic Tremors Reveal the Beginning of the Slab Window at the Chilean Triple Junction

Geophysical Research Letters, Volume 52, Issue 14, 28 July 2025.
Abstract The subduction of active spreading centers is an unusual phenomenon along subduction zones. In southern Chile, the Nazca‐Antarctic spreading system (Chile Rise) subducts beneath the South America plate at the Chile Triple Junction (CTJ), forming the Patagonian slab window.
Kellen Azúa, Satoshi Ide, Seiya Yano, Sergio Ruiz, Hiroko Sugioka, Hajime Shiobara, Aki Ito, Matthew Miller, Hikaru Iwamori   +8 more
wiley   +1 more source