Results 71 to 80 of about 9,464 (179)

Why is seismic activity low in Antarctica?

Antarctic Record, 1984
Oceanic intraplate earthquakes which occurred in the oceanic lithosphere show the following features : 1. The level of oceanic intraplate seismicity appears to increase from high latitudes to low latitudes. 2.
Masashi Tani, Ichiro Kawasaki
doaj   +1 more source

Late Cenozoic intraplate faulting in eastern Australia [PDF]

, 2014
The intensity and tectonic origin of late Cenozoic intraplate deformation in eastern Australia is relatively poorly understood. Here we show that Cenozoic volcanic rocks in southeast Queensland have been deformed by numerous faults.
Rosenbaum, Gideon, Babaahmadi, Abbas
core   +1 more source

Fifty Years Later: Revisiting Viking 2 Seismic Signals Through InSight

AGU Advances, Volume 7, Issue 7, October 2026.
Abstract For nearly 50 years, the origin of the candidate seismic signals recorded by Viking 2 remained unresolved because of limited instrumental sensitivity, onboard observation, data compression, and the absence of Martian seismic context. Here we reconstruct the Viking seismic workflow and reinterpret the two Viking candidate events, recorded on ...
Wanbo Xiao, Jiaqi Li, Yanbin Wang, Andrew Lazarewicz   +3 more
wiley   +1 more source

OIB‐Type Garnet Amphibolites From the Xuerongzangbu Area, Central Lhasa Terrane, Tibet: Implications for Songduo Paleo‐Tethys Ocean Evolution and Permian Mantle Activity Along North Gondwana

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.
Abstract Whether the Songduo metamorphic belt represents an in situ Paleo‐Tethyan suture within the Lhasa Terrane or far‐traveled allochthonous high‐pressure slices, and how Permian mantle activity along the North Gondwana margin relates to subsequent Tethyan evolution, remain central questions in Tibetan tectonics.
Yuan‐Bo Ma, Xin Jin, Yu‐Xiu Zhang, Zhi‐Wu Li, Shahbaz Bin Khalid, Ji‐Heng Zhang, Wen‐Guang Yang, Li‐Dong Zhu, Gang Tao, Kai‐Jun Zhang   +9 more
wiley   +1 more source

Upper Mantle Heterogeneity and Weak Subduction Boundaries Control Crustal Stress in the Korean Peninsula

Geophysical Research Letters
Most earthquakes occur at plate boundaries, but some also strike within stable continental interiors. Although dominant causes of such intraplate earthquakes remain elusive, a prevailing hypothesis attributes intraplate stress and seismicity to ...
Sungho Lee, Chang Soo Cho, YoungHee Kim, Youngsang Kwon, Eunseo Choi   +4 more
doaj   +1 more source

Uplift and seismicity of intraplate regions of India: role of rheology, paleo-and active tectonics

Frontiers in Earth Science
The present study examines uplift and seismicity in the intraplate regions of the Indian shield. A comprehensive seismicity map of India is prepared, showing 47 major earthquake locations.
V. Vijaya Rao, Kolli Laxminarayana, Kolli Laxminarayana, Pratul Ranjan, Pratul Ranjan, Biswajit Mandal, Biswajit Mandal, P. Karuppannan, Prakash Kumar, Prakash Kumar   +9 more
doaj   +1 more source

Lasting mantle scars lead to perennial plate tectonics

Nature Communications, 2016
The causes of intraplate deformation remain poorly constrained. Heron et al. use numerical models to show that ancient plate tectonic processes produce mantle lithosphere structures that may be reactivated to generate intraplate deformation.
Philip J. Heron, Russell N. Pysklywec, Randell Stephenson   +2 more
doaj   +1 more source

Unraveling the Evolution of Silicic Volcanism in a Distributed Volcanic Field: Insights From Harrat Khaybar, Western Saudi Arabia

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.
Abstract Distributed basaltic volcanic fields commonly host minor but significant silicic magmas, the origin of which remains debated. At Harrat Khaybar (western Saudi Arabia; ca. 1.7 Ma to present), volcanic activity erupted compositions range from alkali olivine basalt to trachyte and comendite.
Abdullah Alohali, Shanaka de Silva, Charles Lewis, Suhail S. Alhejji, Shane J. Cronin, Chris J. Russo   +5 more
wiley   +1 more source

Subduction Recycling and Closure of the Paleo‐Asian Ocean in the Beishan Orogen: Constraints From the Niujuanzi Ophiolitic Mélange and Associated Intrusions

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.
Abstract Ophiolitic mélanges and associated intrusions provide key archives for reconstructing the evolution of ancient ocean basins and subduction‐related mantle modification. The Hongliuhe–Niujuanzi–Xichangjing ophiolitic mélange in the central Beishan Orogen preserves important records of the Paleo‐Asian Ocean, but the timing of oceanic subduction ...
Yujia Song, Xijun Liu, Yao Xiao, Honghu Zeng, Pengde Liu   +4 more
wiley   +1 more source

Supplemental data files for: Intraplate Seismic Mechanisms in the Zhangjiakou-Bohai Seismic Belt: Insights from Magnetotelluric Data

Supplemental data files for: Intraplate Seismic Mechanisms in the Zhangjiakou-Bohai Seismic Belt: Insights from Magnetotelluric ...
Zhang, Yuyang
core   +1 more source