Results 161 to 170 of about 27,280 (282)

Mantle Flow and Deforming Continents: From India-Asia Convergence to Pacific Subduction. [PDF]

open access: yesTectonics, 2018
Jolivet L   +5 more
europepmc   +1 more source

Noble gases and nitrogen in material from asteroid Bennu

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract We report the elemental and isotopic abundances of all stable noble gases (helium, neon, argon, krypton, and xenon) in eight particles from asteroid Bennu returned by NASA's OSIRIS‐REx mission. We also report nitrogen abundances and isotopic ratios that were analyzed alongside neon and argon in four additional Bennu particles.
B. Marty   +7 more
wiley   +1 more source

Rheological control of Wadati-Benioff zone seismicity

open access: yes, 1988
Intermediate and deep focus earthquakes in Wadati-Benioff zones are thought to occur in the cold interiors of downgoing slabs which are significantly stronger than the warmer mantle.
Brodholt, J, Stein, S
core  

Polymict melt‐bearing breccia dikes in the Morokweng impact structure formed by slip‐induced mechanical mixing of pseudotachylite and cataclasite along large‐displacement impact faults

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract A core drilled through shocked and faulted Archean granitoid gneisses and dolerites in the eroded peak ring of the 70–80 km diameter Morokweng impact structure intersects multiple centimeter‐ to meter‐wide clastic‐matrix breccias containing a polymict clast population of lithic and mineral clasts and altered, millimeter‐ to centimeter ‐size ...
Roger L. Gibson   +3 more
wiley   +1 more source

Mantle flow and deep electrical anisotropy in a main gateway: MT study in Tierra del Fuego. [PDF]

open access: yesSci Rep, 2019
González-Castillo L   +10 more
europepmc   +1 more source

Stardust Mine: A 2024 gabbroic shergottite from Arizona, USA

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract This study provides an initial characterization of Stardust Mine, a fresh gabbroic enriched shergottite collected in Arizona, USA, in September 2024 and is the first Martian meteorite to be unequivocably collected on US soil. Analysis was conducted on the type specimen and finds that Stardust Mine is composed of equal proportions of pyroxene ...
Jennifer T. Mitchell   +4 more
wiley   +1 more source

Rapid mantle flow with power-law creep explains deformation after the 2011 Tohoku mega-quake. [PDF]

open access: yesNat Commun, 2019
Agata R   +7 more
europepmc   +1 more source

Raman analysis of organic refractory materials after energetic processing: Evidence for amorphous carbon on TNOs and comets

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Amorphous carbon (αC) is found in various extraterrestrial particles, including those thought to originate from the outer Solar System. αC can form through two main processes involving C‐rich materials: exposure to energetic charged particles and thermal processing.
M. Germanà   +10 more
wiley   +1 more source

Human Destiny and the Natural Law in St Maximus the Confessor: A Contribution to Orthodox Christian Humanism

open access: yesModern Theology, EarlyView.
Abstract Orthodox Christian theology in general prides itself on bearing the mantle of patristic thought. Orthodox theological anthropology is no different, often drawing on Greek patristic sources in presenting its vision of the human being. Yet Orthodox anthropology can also broadly be categorized as personalist in ways that are not necessarily so ...
Alexis Torrance
wiley   +1 more source

Fine‐root trait variation in temperate trees follows arc‐shape pattern along deep soil profiles

open access: yesNew Phytologist, EarlyView.
Root trait variation along the soil depth profile in four temperate tree species. Summary Roots are plants' interface with the soil, controlling access to water and nutrients. Yet, fine‐root trait variation along deep soil profiles and its functional implications remain poorly understood.
Katrin Pietig   +3 more
wiley   +1 more source

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