Results 91 to 100 of about 9,343 (213)

3D crustal structure of the Ligurian Basin revealed by surface wave tomography using ocean bottom seismometer data

, 2021
Felix Noah Wolf, Dietrich Lange, Anke Dannowski, Martin Thorwart, Wayne C. Crawford, Lars Wiesenberg, Ingo Grevemeyer, Heidrun Kopp, the AlpArray Working Group   +8 more
openalex   +1 more source

Exploring the Gravimetric and Geochronological Links in Ancient Terranes of the São Francisco Craton and Borborema Province, NE‐Brazil

Terra Nova, EarlyView.
ABSTRACT Deep crustal fragments and structural lineaments identified through satellite gravity data provide evidence for the extension of the reworked ancient basement of the Central African Block into the northern São Francisco Craton and southern Borborema Province.
Douglas Teixeira Martins, Wagner da Silva Amaral, Felipe Holanda dos Santos, Evilarde Uchôa Filho   +3 more
wiley   +1 more source

Birth of an ocean in the Red Sea: Initial pangs

Geochemistry, Geophysics, Geosystems, 2012
We obtained areal variations of crustal thickness, magnetic intensity, and degree of melting of the sub‐axial upwelling mantle at Thetis and Nereus Deeps, the two northernmost axial segments of initial oceanic crustal accretion in the Red Sea, where ...
Marco Ligi, Enrico Bonatti, Giovanni Bortoluzzi, Anna Cipriani, Luca Cocchi, Fabio Caratori Tontini, Eugenio Carminati, Luisa Ottolini, Antonio Schettino   +8 more
doaj   +1 more source

Calcium isotope evidence for early Archaean carbonates and subduction of oceanic crust. [PDF]

Nat Commun, 2021
Antonelli MA, Kendrick J, Yakymchuk C, Guitreau M, Mittal T, Moynier F.   +5 more
europepmc   +1 more source

Cryogenian Glacial Erosion and Tectonics as Agents of Crustal Recycling

Terra Nova, EarlyView.
ABSTRACT Zircon preserves evidence of recycling processes that link surface environments to the mantle. Combined δ18O‐εHf in zircon fingerprints magmatic sources and tracks how crustal material is reworked over time. We apply statistical analyses to a global compilation that apparently resolves shifts in zircon U–Pb, δ18O, and Lu‐Hf data spanning the ...
M. Seraine, C. J. Spencer, T. M. Gernon, T. Hincks, C. L. Kirkland, E. Rugen, L. DaSilva, H. Shafaii Moghadam, L. P. Soares, G. Fazio   +9 more
wiley   +1 more source

Microbial Abundance and Diversity in Subsurface Lower Oceanic Crust at Atlantis Bank, Southwest Indian Ridge. [PDF]

Appl Environ Microbiol, 2021
Wee SY, Edgcomb VP, Beaudoin D, Yvon-Lewis S, Sylvan JB.   +4 more
europepmc   +1 more source

Near‐Synchronous Cambrian Evolution of the Transbrasiliano‐Kandi‐4°50′ Shear Zone in South America and Africa

Terra Nova, EarlyView.
ABSTRACT The Transbrasiliano‐Kandi‐4°50′ (TK4) shear zone in western Gondwana crosscuts South America and NW Africa for at least 6000 km. Despite its impressive size, the timing of the main episode of dextral ductile shearing is uncertain. We present detailed in situ multi‐mineral geochronology of mylonites from both Brazil and Algeria supporting that ...
F. A. Caxito, B. V. Ribeiro, F. Alkmim, A. Deramchi, C. L. Kirkland   +4 more
wiley   +1 more source

Geochronological and geochemical constraints on juvenile continental crust formation in the Eocene Luzon intra-oceanic arc, Philippines

Geoscience Letters
The formation of juvenile felsic crust in intra-oceanic arcs (IOAs) represents a fundamental but poorly understood process in Earth's crustal evolution.
Karl D. Jabagat, Yuan-Hsi Lee, Wan-Ling Tsai, Hao-Yang Lee, Jillian Aira S. Gabo-Ratio, Carla B. Dimalanta   +5 more
doaj   +1 more source

Highlighting the Biotechnological Potential of Deep Oceanic Crust Fungi through the Prism of Their Antimicrobial Activity. [PDF]

Mar Drugs, 2021
Quemener M, Dayras M, Frotté N, Debaets S, Le Meur C, Barbier G, Edgcomb V, Mehiri M, Burgaud G.   +8 more
europepmc   +1 more source

Tentative Model of Crustal Structure of the Central Indian Ocean Deformation as Inferred from Spectral and Werner Deconvolution Techniques of Magnetic Data

, 2020
R Bharathi, M. B. Subrahmanyam, D. S. Ramesh, Sankaran Rajendran   +3 more
openalex   +1 more source