Results 1 to 10 of about 315,024 (237)

Receiver Function Imaging of the Mantle Transition Zone Beneath the East Sayan Mountains and Adjacent Area in Central Asia: Implications for Lithospheric Drip and Intraplate Cenozoic Volcanism

Geophysical Research Letters
To provide constraints on the formation mechanisms of intracontinental volcanisms and intriguing lithospheric thickness variations in the East Sayan Mountains and surrounding areas, we stack P‐to‐s receiver functions to image the 410‐km and 660‐km ...
Yangyang Liao, Kelly H. Liu, Stephen S. Gao   +2 more
doaj   +1 more source

Oxidation state and metasomatism of the lithospheric mantle beneath the Rae Craton, Canada: strong gradients reflect craton formation and evolution. [PDF]

Sci Rep, 2021
Woodland AB, Gräf C, Sandner T, Höfer HE, Seitz HM, Pearson DG, Kjarsgaard BA.   +6 more
europepmc   +1 more source

Heterogeneous Earth’s mantle drilled at an embryonic ocean

Nature Communications
Mantle processes control plate tectonics and exert an influence on biogeochemical cycles. However, the proportion of mantle sampled in-situ is minimal, as it is buried beneath igneous crust and sediments.
Alessio Sanfilippo, Ashutosh Pandey, Norikatsu Akizawa, Eirini Poulaki, Emily Cunningham, Manon Bickert, Chao Lei, Paola Vannucchi, Emily R. Estes, Alberto Malinverno, Noriaki Abe, Agata Di Stefano, Irina Y. Filina, Qi Fu, Swanne B. L. Gontharet, Lorna E. Kearns, Ravi Kiran Koorapati, Maria Filomena Loreto, Luca Magri, Walter Menapace, Victoria L. Pavlovics, Philippe A. Pezard, Milena A. Rodriguez-Pilco, Brandon D. Shuck, Xiangyu Zhao, Carlos Garrido, Daniele Brunelli, Tomoaki Morishita, Nevio Zitellini   +28 more
doaj   +1 more source

Mode of intracontinental mountain building controlled by lower crustal composition and mantle lithosphere depletion

Nature Communications
Tectonic plate convergence is accommodated across the continental lithosphere via discrete lithospheric subduction or distributed shortening and thickening.
Xi Xu, Andrew V. Zuza, Taras Gerya, Lin Chen, Xingtao Kuang, Hanlin Chen, Baodi Wang, Jingao Liu, Xuhua Shi, Yanyun Sun, Lei Wu, Song Han, Xiubin Lin, Shufeng Yang, An Yin   +14 more
doaj   +1 more source

Author Correction: Lithospheric mantle buoyancy: the role of tectonic convergence and mantle composition. [PDF]

Sci Rep, 2020
Boonma K, Kumar A, Garcia-Castellanos D, Jiménez-Munt I, Fernández M.   +4 more
europepmc   +1 more source

Pristine helium from the Karoo mantle plume within the shallow asthenosphere beneath Patagonia

Nature Communications
Mantle xenoliths usually represent fragments derived from the depleted and degassed lithospheric mantle with 3He/4He isotope ratios (6 ± 1 RA) lower than those of mid-ocean ridge basalts (8 ± 1 RA).
Tiago Jalowitzki, Hirochika Sumino, Rommulo V. Conceição, Manuel E. Schilling, Gustavo W. Bertotto, Andrés Tassara, Fernanda Gervasoni, Yuji Orihashi, Keisuke Nagao, Marcelo Peres Rocha, Rodrigo Antonio de Freitas Rodrigues   +10 more
doaj   +1 more source

Plate‐Scale Imaging of Eastern US Reveals Ancient and Ongoing Continental Deformation

Geophysical Research Letters
Eastern North America was constructed over several Wilson cycles, culminating in the breakup of Pangea. Previous seismological imaging lacked the resolution to depict precisely how ancient tectonic boundaries manifest throughout the lithosphere, how ...
Brennan Brunsvik, Zachary Eilon, Colton Lynner   +2 more
doaj   +1 more source

Magnetization of the lithosphere and the upper mantle based on magnetic-mineralogical data

Геофизический журнал
According to numerous studies, sources of magnetic anomalies in the lithosphere and mantle can have a magnetic-mineralogical nature due to magnetic minerals at mantle depths.
O.Ye. Shestopalova, V.V. Drukarenko
doaj   +1 more source

Carbonate- and silicate-metasomatized mantle beneath Himalayan-Tibetan orogenic belt

Communications Earth & Environment
The extreme geochemical enrichment of post-collisional potassium-rich lava in the Alpine-Himalayan orogenic belt has led researchers to hypothesize that enrichment is inherited from a metasomatized mantle source potentially incorporating crustal ...
Weikai Li, Zhiming Yang, Zoltán Zajacz, Limin Zhou, Zengqian Hou   +4 more
doaj   +1 more source

Thick Underplating and Buoyancy of the Bermuda Swell

Geophysical Research Letters
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.
William D. Frazer, Jeffrey Park
doaj   +1 more source