Results 161 to 170 of about 62,616 (302)

Static recrystallization of shocked calcite in Ries impact breccias

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Calcite is prone to chemical and microstructural modifications, especially after having been strained at high stresses and strain rates, as during hypervelocity impact events. These modifications include precipitation from pore fluid as well as replacement of strained volumes by recrystallization. In calcite aggregates of a metagranite breccia
Claudia A. Trepmann   +8 more
wiley   +1 more source

The Seven Works of Mercy; a 16th century Dutch picture gallery of skin disease

open access: yes
Journal of the European Academy of Dermatology and Venereology, EarlyView.
Thomas M. van Gulik   +2 more
wiley   +1 more source

Petrography and mineral chemistry of Northeast Africa 053—A remnant of Martian crystal mush

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract In Earth's igneous systems, crystal mushes, crystal‐rich frameworks permeated by silicate melt, represent a common and fundamental stage in the evolution of magma bodies. However, whether crystal mushes occur within Martian igneous systems and play a comparable role is unknown. Here, we present a comprehensive petrography and mineral chemistry
Xhonatan Shehaj   +2 more
wiley   +1 more source

Crustal deformation, the earthquake cycle, and models of viscoelastic flow in the asthenosphere [PDF]

open access: yes
The crustal deformation patterns associated with the earthquake cycle can depend strongly on the rheological properties of subcrustal material. Substantial deviations from the simple patterns for a uniformly elastic earth are expected when viscoelastic ...
Cohen, S. C., Kramer, M. J.
core   +1 more source

Confirmation of the impact origin of the Late Ordovician Tvären impact structure (southeast Sweden) and emplacement of impactites in a marine setting

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract The Tvären structure in southeastern Sweden has been listed as a confirmed marine‐target impact structure for decades. However, to date, no measurements and/or indexed data of planar deformation features in quartz grains from the structure have been published or any other unequivocal evidence of impact.
Katarzyna J. Gajewska   +6 more
wiley   +1 more source

Deep crustal deformation driven by reaction-induced weakening. [PDF]

open access: yesNat Commun
Soret M   +7 more
europepmc   +1 more source

New medicine for soil restoration: biological soil crust capsules facilitate native plant and soil microbe establishment

open access: yesRestoration Ecology, EarlyView.
Abstract Introduction Restoration in drylands is challenging because of harsh climates, requiring creative methods and organisms like biocrusts for restoration of degraded lands. Biocrusts are thin, coherent soil surface layers prevalent in drylands, engineered, and inhabited by communities of organisms including mosses, lichens, and cyanobacteria ...
Madeline Mayorga   +7 more
wiley   +1 more source

Geophysical study of the structure and processes of the continental convergence zones: Alpine-Himalayan belt [PDF]

open access: yes
Studies of the structure of the continental collision zones using seismic and body waves, theoretical modelling of the thermal regime of the convergence processes, and studies of earthquake mechanisms and deformation aspects of the model are ...
Molnar, P., Toksoz, M. N.
core   +1 more source

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