Article
Geosciences, Multidisciplinary
Colton Lynner, Jonathan R. Delph, Daniel E. Portner, Susan L. Beck, Eric Sandvol, A. Arda Ozacar
Summary: This study investigates the deformation of the African Plate beneath the Anatolian Plate in the eastern Mediterranean. Using shear wave splitting measurements, the authors examine patterns of mantle flow around the edges of a fragmenting African slab segment. They identify three distinct regions of shear wave splitting that correspond to the segmentation boundaries of the slab. Additionally, the study reveals regional coherent mantle flow near the eastern and western edges of the slab, with an area of null splitting near the easternmost edge, likely caused by mantle upwelling due to the displacement of asthenosphere.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Geochemistry & Geophysics
Jihye Oh, Insung Lee, Finlay M. Stuart, Munjae Park, Jonguk Kim
Summary: The research reveals the process of mantle enrichment in the mature back-arc spreading axis in the North Fiji Basin, with enriched basalts influenced by contributions from the mantle transition zone and dehydrated oceanic slab components.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2021)
Article
Geosciences, Multidisciplinary
Xiaoming Xu, Zhifeng Ding, Fenglin Niu
Summary: We calculated a large number of receiver functions from teleseismic events recorded by two seismic arrays in the TNCO and NCC regions. After moveout correction, the CCP stacking method was used to image the structures of the MTZ. The topographic variations of the 410km and 660-km discontinuities across the study area were observed. The results provide new insights into the mantle dynamics and tectonic evolution in the TNCO and NCC regions.
JOURNAL OF ASIAN EARTH SCIENCES
(2023)
Article
Geochemistry & Geophysics
Hanting Wu, Zhouchuan Huang
Summary: By measuring SKS splitting, this study reveals the complex deformation of the upper mantle in western Mongolia. The predominant NW-SE-oriented fast polarization directions are consistent with lithospheric deformation and asthenospheric flow. The shape of the Siberian Craton influences the extent of lithospheric deformation and causes the deflection of asthenospheric flow.
Article
Geosciences, Multidisciplinary
Zhong-Xian Zhao
Summary: Deep hot mantle upwelling has been found around the Qiongdongnan Basin in the northwestern South China Sea margin. Detailed analysis of Cenozoic residual subsidence shows negative subsidence starting from 28.4 Ma, decreasing dramatically after 11.6 Ma. Different patterns of residual subsidence during syn-rift and post-rift periods suggest the influence of deep mantle upwelling on basin dynamics over a large time span.
GEOSCIENCE FRONTIERS
(2021)
Article
Geochemistry & Geophysics
Zhen-Min Ge, Xiao-Long Huang, Wei Xie, Tobias W. Hofig, Fan Yang, Yang Yu, S. Khogenkumar Singh
Summary: The mantle source composition of the nascent oceanic crust in the central part of the Gulf of California has been investigated using basaltic glass samples. These samples show trace element patterns similar to enriched mid-ocean ridge basalts, suggesting that the nascent oceanic crust in the Guaymas Basin might be generated through partial melting of a depleted mantle source metasomatized by subducted slab materials.
Article
Oceanography
Elizabeth Duran-Campos, David Alberto Salas-de-Leon, Erik Coria-Monter, Maria Adela Monreal-Gomez, Javier Aldeco-Ramirez, Benjamin Quiroz-Martinez
Summary: This study assessed the impact of ENSO events on the seasonal and interannual variability of sea surface temperature (SST) and phytoplankton biomass (Chl-a levels) in two contrasting regions of the southern Gulf of California. The results showed a correlation between ENSO events, a local wind-derived coastal upwelling index, and SST and Chl-a levels. These findings are important for understanding the marine environmental changes and ecosystem stability in this region.
CONTINENTAL SHELF RESEARCH
(2023)
Article
Environmental Sciences
Magdalena E. Berges-Tiznado, I. Jiroo Veliz-Hernandez, Carolina Bojorquez-Sanchez, Oscar G. Zamora-Garcia, J. Fernando Marquez-Farias, Federico Paez-Osuna
Summary: This study examined the bioaccumulation and availability of Hg and Se in the deep-water chimaera Hydrolagus colliei, finding differences in element concentrations between genders and a correlation between Hg levels and weight. The Se:Hg molar ratio in muscle was lowest compared to the liver, suggesting differences in uptake pathways for the two elements. The study also highlighted the important functional role of H. colliei in the control of oceanic ecosystem structure and function.
MARINE POLLUTION BULLETIN
(2021)
Article
Geochemistry & Geophysics
Chuansong He, M. Santosh
Summary: The study reveals a large low-velocity anomaly beneath the Cathaysia Block in South China, potentially associated with mantle upwelling. Analysis of receiver functions shows the 410 km discontinuity is depressed and the 660 km discontinuity is elevated at the location of the anomaly, suggesting it is a signature of mantle upwelling.
Review
Geosciences, Multidisciplinary
Jack F. Ward, Gideon Rosenbaum, Teresa Ubide, Jonny Wu, John T. Caulfield, Mike Sandiford, Derya Guerer
Summary: Studies have shown that intraplate volcanoes in East Asia are likely formed by decompression melting associated with convective upwellings at the edges of the Pacific and Philippine Sea slabs, rather than mantle plume activity or typical subduction zone slab metasomatism. The Quaternary rollback of the Philippine slab may also be responsible for volcanic activity at Jeju, located at the leading edge of the Philippine Sea slab.
EARTH-SCIENCE REVIEWS
(2021)
Article
Geochemistry & Geophysics
Hanting Wu, Zhouchuan Huang, Dapeng Zhao
Summary: The formation of the Baikal rift zone may be attributed to the hot mantle upwellings from beneath the Siberian craton, which play a vital role in shaping the deep structures and geological settings in this area.
PHYSICS OF THE EARTH AND PLANETARY INTERIORS
(2021)
Review
Oceanography
Edgardo B. Farach-Espinoza, Juana Lopez-Martinez, Ricardo Garcia-Morales, Manuel O. Nevarez-Martinez, Sofia Ortega-Garcia, Daniel B. Lluch-Cota
Summary: The abundance of adult fish depends on the survival of early life stages, which are influenced by mesoscale events in the marine environment. This study investigated the relationship between different mesoscale processes and the catches of Pacific sardine in the Gulf of California. The results showed that eddies and coastal upwelling had significant effects on the catches, while the persistence of Tropical surface sea water intrusion also played a role. The findings highlight the importance of considering these processes in climate change scenarios to understand their impact on trophic dynamics in the Gulf of California.
PROGRESS IN OCEANOGRAPHY
(2022)
Article
Geosciences, Multidisciplinary
Zhuo Xiao, Xinlei Sun, Jianfeng Yang, Yuan Gao
Summary: We reveal the upper mantle structures of the easternmost and northeastern Tibetan Plateau through dense-array adjoint waveform tomography. Seismic images show mushroom-shaped low-velocity zones above the uppermost mantle of the eastern plateau margin and slab-shaped high-velocity bodies beneath the eastern Himalayan syntaxis and the western Sichuan basin. These seismic features suggest asthenosphere upwelling and lithospheric delamination below the western Yangtze Craton, possibly induced by the retreat of the subducted Indian Plate. Our study highlights the important role of mantle dynamics in the growth of the Tibetan Plateau and suggests ongoing continental collision could reconstruct the Yangtze Craton.
FRONTIERS IN EARTH SCIENCE
(2023)
Article
Oceanography
Zeneida Wong, Gonzalo S. Saldias, John L. Largier, P. Ted Strub, Marcus Sobarzo
Summary: The study analyzed the upwelling shadow in the Gulf of Arauco using 15 years of satellite images and reanalysis product data, developing an Upwelling Shadow Index. Results showed that upwelling shadow events mostly lasted 1 day and were more frequent in spring/summer.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2021)
Article
Geosciences, Multidisciplinary
Adam F. Holt
Summary: Subduction zones generate pressure fields that cause dynamic topography on Earth's surface. However, global mantle flow models often oversimplify subduction zones and associated pressure fields. This study reveals the existence of positive pressure and resultant uplift beneath subducting plates, which can be better predicted by incorporating subduction zones into mantle flow models.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Geochemistry & Geophysics
Brian M. Covellone, Brian Savage, Yang Shen
EARTH AND PLANETARY SCIENCE LETTERS
(2015)
Article
Geochemistry & Geophysics
Brian Savage, Dimitri Komatitsch, Jeroen Tromp
BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA
(2010)
Article
Geochemistry & Geophysics
Brian M. Covellone, Brian Savage
BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA
(2012)
Article
Geochemistry & Geophysics
Yang Shen, Yong Ren, Haiying Gao, Brian Savage
BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA
(2012)
Article
Geochemistry & Geophysics
Brian Savage, Yun Wang
BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA
(2012)
Article
Geochemistry & Geophysics
Brian Savage, Paul G. Silver
EARTH AND PLANETARY SCIENCE LETTERS
(2008)
Article
Geology
Brian Savage
Article
Multidisciplinary Sciences
Yun Wang, Donald W. Forsyth, Christina J. Rau, Nina Carriero, Brandon Schmandt, James B. Gaherty, Brian Savage
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2013)
Article
Geochemistry & Geophysics
B. Savage, B. M. Covellone, Y. Shen
EARTH AND PLANETARY SCIENCE LETTERS
(2017)
Article
Geochemistry & Geophysics
Paul G. Silver, Mark D. Behn, Katherine Kelley, Mark Schmitz, Brian Savage
EARTH AND PLANETARY SCIENCE LETTERS
(2006)
Article
Geochemistry & Geophysics
B Savage, DV Helmberger
BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA
(2004)
Article
Geochemistry & Geophysics
B Savage, DV Heimberger
EARTH AND PLANETARY SCIENCE LETTERS
(2004)
Article
Geochemistry & Geophysics
RB Lohman, M Simons, B Savage
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2002)
Article
Geochemistry & Geophysics
B Savage, DV Helmberger
BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA
(2001)