Results 191 to 200 of about 2,903 (264)

Imaging the Low Dip Onset of the Gibraltar Arc Subduction in the Gulf of Cádiz Using OBS Receiver Functions

Geophysical Research Letters, Volume 52, Issue 23, 16 December 2025.
Abstract Using P and S‐wave receiver function analysis we investigate the lithospheric structure in the Gulf of Cádiz through a combination of ocean‐bottom seismometers and onshore seismic stations located in southwest Iberia and northwest Africa. By applying common conversion point migration with custom earth models accounting for the marine sediment ...
J. A. Parera‐Portell, F. d. L. Mancilla, J. Morales, D. Stich, W. H. Geissler, G. Silveira   +5 more
wiley   +1 more source

Volcanism and long-term seismicity controlled by plume-induced plate thinning. [PDF]

Nat Commun
Bonadio R, Lebedev S, Chew D, Xu Y, Fullea J, Meier T.   +5 more
europepmc   +1 more source

A New High‐Resolution Broadband Lg Attenuation Model Beneath Colombia: Implications for Triple Junction Tectonics

Geophysical Research Letters, Volume 52, Issue 23, 16 December 2025.
Abstract The existence of a typical triple junction in Colombia is crucial for understanding plate convergence and coupling among the South American Plate, the subducting Nazca Plate, and the Caribbean Plate. However, locating this triple junction is challenging due to complex geodynamic evolution and uncertainty in the slab boundaries.
Zhen Liu, Lian‐Feng Zhao, Xiao‐Bi Xie, Carlos A. Vargas, Bao‐Feng Tian, Zhen‐Xing Yao   +5 more
wiley   +1 more source

Discovery of a heavy silicon isotope mantle reservoir. [PDF]

Natl Sci Rev
Liu MR, Wang J, Cui ZX, Wei GJ, Yang Q, Xu YG, Kerr AC, Wyman D, Bai JH, Zhu GH, Ma L, Hao LL, Zhou JS, Fan JJ, Huang TY, Zhang MY, Wang Q.   +16 more
europepmc   +1 more source

Petrogenesis of Very‐Low‐Ti Basalts Returned by Chang'e‐6 From the Lunar Farside

Geophysical Research Letters, Volume 52, Issue 23, 16 December 2025.
Abstract Lunar volcanism provides critical insights into the Moon's thermochemical evolution. We present petrological and geochemical analyses of six very‐low‐Ti (VLT) basalt fragments from Chang'e‐6 (CE6) samples. These basalts yield a Pb‐Pb age of around 2.9 Ga, representing the youngest reported VLT volcanism. They are slightly older than the low‐Ti
Shitou Wu, Di Zhang, Heng‐Ci Tian, Wei Yang, Hao Wang, Yueheng Yang, Xu Tang, Chao Huang, Lihui Jia, Qiuli Li, Qin Zhou, Yi Chen, Sen Hu, Xian‐Hua Li, Fu‐Yuan Wu   +14 more
wiley   +1 more source

Lithospheric features revealed by a new Moho map in the central-western Sicily Channel. [PDF]

Sci Rep
Bongiovanni S, Maiorana M, D'Alessandro A, Martorana R, Sulli A.   +4 more
europepmc   +1 more source

A >70‐Myr‐Long Geomagnetic Field Reversal Hyperactivity Across the Ediacaran‐Cambrian Transition

Geophysical Research Letters, Volume 52, Issue 23, 16 December 2025.
Abstract The long‐term variation of the geomagnetic field is a key constraint for unraveling the geodynamo processes and the evolution of Earth's deep interior. However, the geomagnetic reversal pattern during the Ediacaran–Cambrian transition remains elusive. Here we present an integrated magneto‐ and cyclo‐stratigraphic study of a ∼1.8‐Myr‐long, late
Fuyun Shen, Bin Wen, Phil J. A. McCausland, Zheng Gong, Zongmin Zhu, Fangzheng Liu, Jingyi Wang   +6 more
wiley   +1 more source

Abiotic synthesis during the interaction of ferrous chloride-rich silicic fluids with marble under high-grade metamorphic conditions. [PDF]

Proc Natl Acad Sci U S A
Fei C, Guo S, Li Y, Liu J.
europepmc   +1 more source

Thick Underplating and Buoyancy of the Bermuda Swell

Geophysical Research Letters, Volume 52, Issue 23, 16 December 2025.
Abstract Bermuda is an intraplate ocean swell that does not conform to traditional mantle plume theory. Unlike other prominent bathymetric swells, such as Hawaii, it lacks age‐progressive volcanism, a deeply rooted mantle plume, and modern volcanism. High‐frequency receiver‐function imaging of the shallow lithosphere beneath the Bermuda swell reveals ...
William D. Frazer, Jeffrey Park
wiley   +1 more source