Results 31 to 40 of about 9,343 (213)

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

open access: yesЗаписки 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   +3 more
doaj   +1 more source

Stress‐Induced Melting Controlled Failure Mechanisms of Methane Hydrate

open access: yesAdvanced Science, EarlyView.
We study methane hydrate via nanoindentation and nuclear magnetic resonance (NMR), finding its regional melting and mechanical properties, challenging existing views on hydrogen‐bonded crystals. Abstract Methane hydrate, a kind of nonstoichiometric crystalline, attracted worldwide attentions as a promising substitute energy. Its Dissociation is thought
Yanlong Li   +9 more
wiley   +1 more source

The magnetic stripe signatures of the North Atlantic Ocean crust derived from Swarm and Macau Science Satellite-1 observations

open access: yesEarth and Planetary Physics
The Earth's crust, the outer shell of the Earth, consists of continental crust and oceanic crust. Oceanic crust is created at the mid-oceanic ridge, where it is magnetized in the ambient field of the Earth.
PengFei Liu   +3 more
doaj   +1 more source

Towards a material‐dialogic theory of climate teacher education: A global North–South dialogue

open access: yesBritish Educational Research Journal, EarlyView.
Abstract This paper develops a novel theoretical stance for reimagining initial teacher education (ITE) through genuine North–South dialogue that challenges dominant Global North paradigms in teacher education. Drawing on collaborative inquiry between researchers from England and Chile, we synthesise material‐dialogic space theory (derived from Global ...
Lindsay Hetherington   +1 more
wiley   +1 more source

Undulations in Subducted Oceanic Crust Correlate With Shallow Tremor Distribution in the Kuril Trench Off Hokkaido

open access: yesGeophysical Research Letters
Recent research has shown that shallow tremors tend to occur in spatial association with heterogeneous conditions, which are formed by seamounts or ridges on the subducted oceanic crust. In the southern Kuril Trench, shallow tremors have been observed on
Hiroto Yamaguchi   +6 more
doaj   +1 more source

Gravitational Potential Energy per Unit Area as a Constraint on Archean Sea Level

open access: yesGeochemistry, Geophysics, Geosystems, 2018
To constrain the density structure of Archean lithosphere, I assume that gravitational potential energy (GPE) per unit area at Archean spreading centers equals that for continents whose surfaces lay near sea level.
Peter Molnar
doaj   +1 more source

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

open access: yesCommunications 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   +2 more
doaj   +1 more source

Injuries in deep time: interpreting competitive behaviours in extinct reptiles via palaeopathology

open access: yesBiological Reviews, EarlyView.
ABSTRACT For over a century, palaeopathology has been used as a tool for understanding evolution, disease in past communities and populations, and to interpret behaviour of extinct taxa. Physical traumas in particular have frequently been the justification for interpretations about aggressive and even competitive behaviours in extinct taxa.
Maximilian Scott   +3 more
wiley   +1 more source

Early evolutionary history of the seed

open access: yesBiological Reviews, EarlyView.
ABSTRACT The seed is an essential stage in the life history of gymnospermous and angiospermous plants, facilitating both their survival and dispersal. We reappraise knowledge of the evolutionary history of the gymnospermous seed, from its origin in the late Devonian through to the well‐known end‐Permian extinctions – an interval encompassing the ...
Richard M. Bateman   +2 more
wiley   +1 more source

Environmental and local habitat variables as predictors of trophic interactions in subtidal rocky reefs along the SE Pacific coast

open access: yesEcography, EarlyView.
Temperature generally drives latitudinal patterns in the strength of trophic interactions, including consumption rates. However, local community and other environmental conditions might also affect consumption, disrupting latitudinal gradients, which results in complex large‐scale patterns.
Catalina A. Musrri   +6 more
wiley   +1 more source

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