Results 21 to 30 of about 9,084 (144)

Burying Earth's Primitive Mantle in the Slab Graveyard

Geochemistry, Geophysics, Geosystems, 2021
The evolution of mantle composition can be viewed as a process of destruction whereby the initial chemical state is overprinted and reworked with time.
T. D. Jones, N. Sime, P. E. van Keken
doaj   +1 more source

IODP Expeditions 304 & 305 Characterize the Lithology, Structure, and Alteration of an Oceanic Core Complex [PDF]

Scientific Drilling, 2006
More than forty years after the Mohole Project (Bascom, 1961), the goal of drilling a complete section through in situ oceanic crust remains unachieved.
Christopher J. MacLeod, the IODP Expeditions 304–305 Scientists, D. Jay Miller, Yasuhiko Ohara, Barbara E. John, Donna Blackman, Benoit Ildefonse   +6 more
doaj   +1 more source

Body wave dispersion characteristics of regional deep earthquake at Southern Ryukyus subduction zone [PDF]

E3S Web of Conferences, 2022
The convergent plate boundaries known as the subduction zone is the location where the cold, hydrate, and old oceanic plate subduct under the hot, dry, and young continental plate. The top of the oceanic plate, i.e. the oceanic crust usually is less than
Haridhi Haekal A., Huang Bor-Shouh, Sianipar Dimas, Purnawan Syahrul, Setiawan Ichsan   +4 more
doaj   +1 more source

Formation of the Xigaze Metamorphic Sole under Tibetan continental lithosphere reveals generic characteristics of subduction initiation

Communications Earth & Environment, 2023
Metamorphic soles found under allochthonous oceanic lithosphere, or ophiolites, are interpreted as derived from lower plate oceanic crust material accreted to upper plate mantle during intraoceanic subduction initiation.
Carl Guilmette, Douwe J. J. van Hinsbergen, Matthijs A. Smit, Antoine Godet, François Fournier-Roy, Jared P. Butler, Marco Maffione, Shun Li, Kip Hodges   +8 more
doaj   +1 more source

Margin-to-Margin Seafloor Spreading in the Eastern Gulf of Aden: A 16 Ma-Long History of Deformation and Magmatism from Seismic Reflection, Gravity and Magnetic Data

Frontiers in Earth Science, 2021
In this paper we present and analyze spreading-parallel seismic transects that image the oceanic crust in the eastern Gulf of Aden, from the Oman to the Socotra margins, across the active Sheba mid-oceanic ridge and between the Socotra-Hadbeen and ...
Morgane Gillard, Sylvie Leroy, Mathilde Cannat, Heather Sloan   +3 more
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Evidence for crustal brines and deep fluid infiltration in an oceanic transform fault. [PDF]

Sci Adv
Chesley C, Evans R, Warren JM, Gase AC, Perez J, Armerding C, Brewer H, Koenig P, Attias E, Fluegel BL, Kim JD, Hummel N, Enright K, Topp-Johnson E, Boettcher MS.   +14 more
europepmc   +2 more sources

Deep structure, tectonics and geodynamics of the Sea of Okhotsk region and structures of its folded frame

Записки Горного института, 2022
The use of the zonal-block model of the earth's crust for the construction of regional tectonic schemes and sections of the earth's crust based on a complex of geological and geophysical data makes it possible to consider the resulting maps and sections ...
Alexey S. Egorov, Natalia V. Bolshakova, Dmitry F. Kalinin, Alexey S. Ageev   +3 more
doaj   +1 more source

The hydrothermal power of oceanic lithosphere [PDF]

Solid Earth, 2015
We have estimated the power of ventilated hydrothermal heat transport, and its spatial distribution, using a set of recently developed plate models which highlight the effects of axial hydrothermal circulation and thermal insulation by oceanic crust ...
C. J. Grose, J. C. Afonso
doaj   +1 more source

Synchronous oceanic spreading and continental rifting in West Antarctica

Geophysical Research Letters, 2016
Magnetic anomalies associated with new ocean crust formation in the Adare Basin off north‐western Ross Sea (43–26 Ma) can be traced directly into the Northern Basin that underlies the adjacent morphological continental shelf, implying a continuity in the
F. J. Davey, R Granot, S. C. Cande, J. M. Stock, M. Selvans, F. Ferraccioli   +5 more
doaj   +1 more source

How lowermost mantle viscosity controls the chemical structure of Earth’s deep interior

Communications Earth & Environment, 2023
Determining the fate of subducted oceanic crust is critical for understanding material cycling through Earth’s deep interior and sources of mantle heterogeneity. A key control on the distribution of subducted slabs over long timescales is the bridgmanite
Juliane Dannberg, Kiran Chotalia, Rene Gassmöller   +2 more
doaj   +1 more source