C. Alwmark

Neutron and X-ray tomography data of MIL 03346,230; MIL 03346,231; MIL 090030,44; MIL 090030,45, Nakhla1913, Nakhla5892, NWA 998 and NWA11013

C. Alwmark

Neutron and X-ray tomography data of MIL 03346,230; MIL 03346,231; MIL 090030,44; MIL 090030,45, Nakhla1913, Nakhla5892, NWA 998 and NWA11013 Neutron data for samples of MIL 03346 and MIL 090030 was acquired at the NeXT instrument at Institut Laue-Langevin in Grenoble, France. …

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Neutron and X-ray tomography data of MIL 03346,230; MIL 03346,231; MIL 090030,44; MIL 090030,45, Nakhla1913, Nakhla5892, NWA 998 and NWA11013

C. Alwmark

Neutron and X-ray tomography data of MIL 03346,230; MIL 03346,231; MIL 090030,44; MIL 090030,45, Nakhla1913, Nakhla5892, NWA 998 and NWA11013 Neutron data for samples of MIL 03346 and MIL 090030 was acquired at the NeXT instrument at Institut Laue-Langevin in Grenoble, France. …

se, au (code pays fourni par la source)

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

Katarzyna Gajewska, Sanna Alwmark, Mikael Calner, Sylvain Richoz et autres

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 …

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Vertical profiling of shock attenuation at the Rochechouart impact structure, France

P. Struzynska, C. Alwmark, M. H. Poelchau, P. Lambert

Abstract Rochechouart, south‐west France, is a complex impact structure. Here, we present the first report of shock barometry of quartz from what are likely parautochthonous basement units at depth, based on samples from the 2017 C.I.R.I.R drilling campaign. The crystallographic orientations of …

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Exceptionally preserved Cretaceous crabs provide novel insights into the fossilization of arthropod compound eyes

Johan Lindgren, Miriam Heingård, C. Alwmark, Robert W. Reid et autres

Abstract The arthropod exoskeleton consists of a chitin–protein meshwork that is reinforced by incorporated minerals, such as in decapod crustaceans. Such naturally biomineralized cuticle forms the bulk of arthropod bodily remains in the rock record. However, the extent to which this organic–inorganic …

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Author response for "Exceptionally preserved Cretaceous crabs provide novel insights into the fossilisation of arthropod compound eyes"

Johan Lindgren, Miriam Heingård, C. Alwmark, Robert W. Reid et autres

Investigation and reclassification of four mesosiderites—Implications for their formation

Gabriel Zachén, C. Alwmark, Sanna Holm‐Alwmark, L. Ferrière et autres

Abstract Mesosiderites are rare, differentiated meteorites, so‐called stony‐iron meteorites—they are impact breccias composed of an unusual mix of crustal basalt and pyroxenite, core‐derived metal, but no mantle materials. This odd mixture makes their origin enigmatic and has inspired many different formation theories …

se, at, us, fr (code pays fourni par la source)

Adaptations for stealth in the wing-like flippers of a large ichthyosaur

Johan Lindgren, Dean R. Lomax, Róbert-Zoltán Szász, Miguel Marx et autres

Abstract With their superficially shark-like appearance, the Mesozoic ichthyosaurs provide a classic illustration of major morphological adaptations in an ancestrally terrestrial tetrapod lineage following the invasion of marine habitats1–3. Much of what is known about ichthyosaur soft tissues derives from specimens with …

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Author response for "Exceptionally preserved Cretaceous crabs provide novel insights into the fossilisation of arthropod compound eyes"

Johan Lindgren, Miriam Heingård, C. Alwmark, Robert W. Reid et autres

Nanoscale Characterization of Fungal-Induced CaCO3 Precipitation: Implications for Self-Healing Concrete

J. R. Marius Tuyishime, Edith C. Hammer, Martí Pla-Ferriol, Karina Thånell et autres

High Resolution Image Download MS PowerPoint Slide Cracks in concrete compromise structural integrity by exposing steel reinforcement to corrosion agents, shortening its service life. Fungal-induced calcium carbonate (CaCO 3 ) precipitation via urea hydrolysis offers a fast and robust self-healing mechanism to …

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Study of thermal diffusivity degradation on Cu-OFE copper due to proton and self-ion irradiation using in situ transient grating spectroscopy

E. Trachanas, Angus P. C. Wylie, Andrea Bignami, Nikolaos Gazis et autres

gr, se, us (code pays fourni par la source)

Surface grain orientation mapping using grazing incidence X-ray diffraction

Hanna Sjö, Anatoly Shabalin, Ulrich Lienert, Johan Hektor et autres

Tomographic surface X-ray diffraction (TSXRD) is an adaptation of classic surface X-ray diffraction to allow for measurements of polycrystalline surfaces. Compared to most other surface-sensitive techniques, surface X-ray diffraction has advantages in operando studies, since it can provide crystallographic information about surface …