Results 61 to 70 of about 43,392 (192)

Review of asteroid, meteor, and meteorite‐type links

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract With the goal to determine the origin of our meteorites in the asteroid belt, video and photographic observations of meteors have now tracked 75 meteorite falls. Six years ago, there were just hints that different meteorite types arrived on different orbits, but now, the number of orbits (N) is high enough for distinct patterns to emerge.
Peter Jenniskens   +1 more
wiley   +1 more source

Toward a unified hydrous olivine electrical conductivity law

open access: yes, 2014
It has long been proposed that water incorporation in olivine has dramatic effects on the upper mantle properties, affecting large‐scale geodynamics, and triggering high electrical conductivity.
E. Gardes, F. Gaillard, P. Tarits
semanticscholar   +1 more source

Microfaults: Abundant shear deformation and frictional melting in chondrites

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract The majority of ordinary chondrite (OC) meteorites record some amount of textural evidence for impact‐induced deformation. Melt veins in some shocked samples have been compared to terrestrial impact‐related pseudotachylites, which form by frictional melting of host rock.
Craig R. Walton   +2 more
wiley   +1 more source

An overview of the petrography and petrology of particles from aggregate sample from asteroid Bennu

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract The OSIRIS‐REx mission returned a sample of regolith from the carbonaceous asteroid Bennu in September 2023. We present preliminary in situ investigations of the petrology and petrography of selected particles ranging in size from 0.5 to 3 mm.
Harold C. Connolly Jr   +57 more
wiley   +1 more source

Multi‐isotope (N, O, Ti, and Cr) study of C1 and CM‐like clasts—Probing unsampled C1 material

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract A multi‐element isotope (N, O, Ti, and Cr) study was conducted on C1 and CM‐like clasts hosted in achondrites and chondrite breccias to understand the genesis of these chondritic clasts. The mineralogy, O, and N isotopes confirm that CM‐like clasts in howardites and polymict eucrites closely resemble CM chondrite‐like material.
Markus Patzek   +9 more
wiley   +1 more source

The petrology of the Ozerki meteorite constrained by electron backscatter diffraction and X‐ray computed tomography

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Combining electron backscatter diffraction (EBSD) with X‐ray computed tomography (XCT) offers a comprehensive approach to investigate shock deformation and rock texture in meteorites, yet such integration remains uncommon. In this study, we demonstrate the synergistic potential of XCT and EBSD in revealing deformation metrics, thereby ...
Alice Macente   +9 more
wiley   +1 more source

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