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Meteors

In this subdiscipline: 557 papers
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Popular papers

  1. Recent studies of oxygen isotopes in meteorites are reviewed. Findings by many researchers who have investigated the origin of the isotopic anomalies in oxygen, parent-body processes, nebular processes, chondrites, achondrites, iron meteorites, and…
  2. Major advances in deciphering the record of nebula processes in chondrites can be attributed to analytical improvements that allow coordinated isotopic and mineralogical studies of components in chondrites and to a wealth of new meteorites from hot…
  3. Asteroids are what is left of the precursors to the terrestrial planets. They are stunning in their diversity, ranging from charcoal-black worlds the size of a hilltop, spinning like a carnival ride, to dog-bone-shaped metallic remnants of some…
  4. Meteorite breccias provide information about impact processes on planetary bodies, their collisional evolution, and their structure. Fragmental and regolith breccias are abundant in both differentiated and chondritic meteorite groups and together…
  5. The abundances of the highly siderophile elements (HSE) Ru, Pd, Re, Os, Ir, and Pt were determined by isotope dilution mass spectrometry for 22 ureilite bulk rock samples, including monomict, augite-bearing, and polymict lithologies. This report…
  6. The discovery of the potentially hazardous near-Earth asteroid (NEA) component of the minor-planet population has been enhanced by better detecting and computing technology. A government mandate to quantify the terrestrial impact hazard and to…
  7. The rotations of asteroids larger than ~40 km in diameter have a distribution close to Maxwellian that suggests that they are either original bodies of the asteroid main belt or its largest, collisionally evolved remnants. Small asteroids (0.15 < D…
  8. We evaluate initial (26Al/27Al)I, (53Mn/55Mn)I, and (182Hf/180Hf)I ratios, together with 207Pb/206Pb ages for igneous differentiated meteorites and chondrules from ordinary chondrites for consistency with radioactive decay of the parent nuclides…
  9. We determined proportions of Type I (reduced) and Type II (oxidized) chondrules in ordinary chondrites (OC) and found linear relationships between chondrule abundances and chondrite bulk chemical and oxygen isotopic compositions. Similar…

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