Results 131 to 140 of about 74,650 (313)

A proposed concept for a crustal dynamics information management network [PDF]

The findings of a requirements and feasibility analysis of the present and potential producers, users, and repositories of space-derived geodetic information are summarized.
Lohman, G. M., Renfrow, J. T.
core   +1 more source

Diversity of Gold Deposits, Geodynamics and Conditions of Formation: A Perspective View

, 2017
Gold occurs in a wide range of deposit types and settings. In the last decade, significant progress has been made in the definition, classification, characterization, thereby aiding understanding of the main gold deposit types.
F. W. Nguimatsia, A. Bolarinwa, R. Yongue, Jean de Dieu Ndikumana, J. Olajide-Kayode, Olugbenga G. Olisa, Maryam O. Abdu-Salam, M. A. Kamga, Ernest Serge Djou   +8 more
semanticscholar   +1 more source

Precambrian Greenstone Belts of North Baffin Island, Canadian Arctic: Geochronological Constraints on Magmatism and Stratigraphy in the Rae Craton

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 10, October 2025.
Abstract Supracrustal greenstone belts of the Rae craton of north Baffin Island have been historically attributed to the Mary River Group (MRG), a key tectonostratigraphic unit of economic significance. Best‐preserved exposures of supracrustal rocks occur within the Eqe Bay Greenstone Belt.
B. M. Saumur, C.‐P. Folkesson, D. R. Skipton, J. H. F. L. Davies, N. Wodicka, S. T. Johnston   +5 more
wiley   +1 more source

Arc Splitting and Back‐Arc Spreading Evolution: The Control of Slab Dehydration and Melting Processes

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 10, October 2025.
Abstract Subduction zones are integral to Earth's deep water cycle, influencing magmatism, lithosphere dynamics and seismicity. They often exhibit development of extensional processes in the upper plate, which may lead to volcanic arc splitting and backarc basin opening.
A. C. Gomes, A. Balázs, T. Gerya
wiley   +1 more source

Investigating the Antarctic Lithosphere Through Sp Receiver Function Analysis

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 10, October 2025.
Abstract To better understand the lithosphere of Antarctica, we imaged its lithosphere‐asthenosphere boundary (LAB) and crust‐mantle transition using Sp receiver functions from teleseismic events analyzed at individual stations and with common conversion point stacking. Results reveal a prominent negative velocity gradient at depths of 70–100 km across
Sarah E. Brown, Karen M. Fischer
wiley   +1 more source

Mapping normal faults on the outer slope of the western Kuril Trench based on recent seismic reflection and bathymetric data

Earth, Planets and Space
To obtain novel information regarding normal faults that could cause tsunamis and large earthquakes on the outer slopes of the Kuril Trench, recently acquired multichannel seismic reflection (MCS) and bathymetric data are processed in this study to ...
Tetsuo No, Shuichi Kodaira, Kentaro Imai, Koichiro Obana, Gou Fujie, Yasuyuki Nakamura, Kazuya Shiraishi, Ryo Miura, Masao Nakanishi   +8 more
doaj   +1 more source

Influence of Glacial Isostatic Adjustment on Intraplate Stress and Seismicity in Eastern North America in the Presence of Pre‐Existing Weak Zones

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 10, October 2025.
Abstract Eastern North America has hosted significant historical earthquakes, where seismicity clusters along tectonically inherited structures. Using the spherical finite‐element code CitcomSVE and fully 3D viscosity structure, we model the intraplate stress response to glacial isostatic adjustment (GIA) using ICE‐6G, both with and without low ...
Erin Hightower, Michael Gurnis
wiley   +1 more source

Oceanic Core Complex die off and generation of enhanced mantle upwelling on the Mid-Atlantic Ridge - 22° N [PDF]

, 2011
EGU2011-13199 Images of crustal construction provide a key to understand the interplay of magmatism and tectonism while oceanic crust is build up. Bathymetric data show that the crustal construction is highly variable.
Dannowski, Anke, Grevemeyer, Ingo, Ranero, Cesar R.   +2 more
core  

Metasomatism and Mélange Development at the Conditions of Modern Deep Slow Slip: P‐T‐t Evolution of Metasomatic Rocks (Pimu'nga/Santa Catalina Island, CA)

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 10, October 2025.
Abstract The subduction interface hosts megathrust earthquakes and ductile creep, is fluid‐rich and chemically dynamic, and produces metasomatic rocks that may host episodic tremor and slow slip (ETS). However, determining the depths at which these metasomatic rocks form and deform remains challenging.
W. Hoover, C. B. Condit, A. Moser, S. Mulcahy, P. C. Lindquist, V. E. Guevara   +5 more
wiley   +1 more source

Reconstructing Early Cenozoic Paleodrainage and Tectonic Evolution in the Southeastern Tibetan Plateau: Evidence From Detrital Zircon and Tourmaline Provenance

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 10, October 2025.
Abstract The Paleogene sedimentary basins of southeastern Tibet record sediment dispersal patterns associated with crustal deformation during the early stages of the India–Asia collision. We present detrital zircon U–Pb geochronology, tourmaline geochemistry, and petrographic data from the Gonjo and Mangkang basins that suggest a reginal interconnected
Yuquan Jiang, Linlin Li, Yingying Li, Xiangjiang Yu, Zhongtai He, Dewen Li   +5 more
wiley   +1 more source