• Thumbnail for Chondrite
    A chondrite /ˈkɒndraɪt/ is a stony (non-metallic) meteorite that has not been modified, by either melting or differentiation of the parent body. They...
    47 KB (5,159 words) - 16:33, 6 July 2024
  • Thumbnail for Carbonaceous chondrite
    Carbonaceous chondrites or C chondrites are a class of chondritic meteorites comprising at least 8 known groups and many ungrouped meteorites. They include...
    30 KB (3,244 words) - 14:48, 23 May 2024
  • Thumbnail for L chondrite
    ordinary chondrites. The ordinary chondrites are thought to have originated from three parent asteroids, with the fragments making up the H chondrite, L chondrite...
    7 KB (746 words) - 23:42, 17 October 2024
  • Thumbnail for H chondrite
    chondrites. The ordinary chondrites are thought to have originated from three parent asteroids, whose fragments make up the H chondrite, L chondrite and...
    4 KB (368 words) - 08:11, 24 December 2022
  • CI chondrites, also called C1 chondrites or Ivuna-type carbonaceous chondrites, are a group of rare carbonaceous chondrite, a type of stony meteorite...
    77 KB (8,823 words) - 08:19, 8 September 2024
  • CM chondrites are a group of chondritic meteorites which resemble their type specimen, the Mighei meteorite. The CM is the most commonly recovered group...
    76 KB (8,309 words) - 20:18, 20 October 2024
  • Thumbnail for LL chondrite
    The LL chondrites are a group of stony meteorites, the least abundant group of the ordinary chondrites, accounting for about 10–11% of observed ordinary-chondrite...
    4 KB (375 words) - 04:23, 10 July 2024
  • Thumbnail for Ordinary chondrite
    The ordinary chondrites (sometimes called the O chondrites) are a class of stony chondritic meteorites. They are by far the most numerous group, comprising...
    5 KB (470 words) - 20:32, 25 April 2024
  • Thumbnail for Chondrites (genus)
    Chondrites is a trace fossil ichnogenus, preserved as small branching burrows of the same diameter that superficially resemble the roots of a plant. The...
    5 KB (582 words) - 21:00, 17 July 2024
  • Thumbnail for Enstatite chondrite
    Enstatite chondrites (E-type chondrites) are a rare form of meteorite, rich in the mineral enstatite. Only about 200 E-Type chondrites are currently[when...
    7 KB (808 words) - 11:52, 10 March 2024
  • Thumbnail for Meteorite classification
    class H chondrite group L chondrite group LL chondrite group Enstatite chondrite class EH chondrite group EL chondrite group Other chondrite groups, not...
    14 KB (1,580 words) - 03:30, 15 April 2024
  • Thumbnail for Meteorite
    Certain types of chondrites also contain small amounts of organic matter, including amino acids, and presolar grains. Chondrites are typically about...
    78 KB (8,727 words) - 05:52, 5 November 2024
  • carbonaceous chondrites and enstatite chondrites in particular have higher sulfur contents than the ordinary chondrites. In C1 and C2 chondrites, sulfur is...
    76 KB (8,996 words) - 18:56, 28 October 2024
  • Thumbnail for Internal structure of Earth
    of Earth's deep interior. Note: In chondrite model (1), the light element in the core is assumed to be Si. Chondrite model (2) is a model of chemical composition...
    33 KB (3,163 words) - 20:24, 5 November 2024
  • Thumbnail for Chicxulub crater
    of CM or CR carbonaceous chondrites. Ruthenium isotope ratios found in impact layers also support a carbonaceous chondrite composition for the impactor...
    84 KB (8,238 words) - 20:07, 26 October 2024
  • sediment and meteorite samples dating billions of years ago. Carbonaceous chondrite fission xenon (CCF Xe), are a collection of different isotopes of xenon...
    6 KB (680 words) - 23:15, 12 October 2024
  • hydrocarbons, having an elevated carbon:hydrogen ratio. The carbonaceous chondrites are meteorites that are rich in carbon. The word "carbonaceous" was first...
    1 KB (114 words) - 11:33, 24 September 2024
  • Thumbnail for Ordovician meteor event
    Ordovician meteor event was a dramatic increase in the rate at which L chondrite meteorites fell to Earth during the Middle Ordovician period, about 467...
    8 KB (719 words) - 04:36, 26 September 2024
  • Thumbnail for Murchison meteorite
    Murchison meteorite (category Chondrite meteorites)
    Australia in 1969 near Murchison, Victoria. It belongs to the carbonaceous chondrite class, a group of meteorites rich in organic compounds. Due to its mass...
    20 KB (1,827 words) - 12:59, 18 September 2024
  • Thumbnail for Tunguska event
    somewhere between an ordinary chondrite and a carbonaceous chondrite.[citation needed] Typical carbonaceous chondrite substance tends to be dissolved...
    75 KB (8,882 words) - 16:42, 12 October 2024
  • Thumbnail for Ordovician
    Epoch, about 467.5 ± 0.28 million years ago, due to the break-up of the L chondrite parent body. It is not associated with any major extinction event. A 2024...
    81 KB (7,807 words) - 00:19, 30 October 2024
  • known as the Ordovician meteor event occurred, when a high level of L chondrite meteorites hit Earth. The meteorites may have been caused by a large parent...
    6 KB (612 words) - 00:20, 6 October 2024
  • Thumbnail for Sudbury Basin
    Mexico. Geochemical evidence suggests that the impactor was likely a chondrite asteroid or a comet with a chondritic component. The full extent of the...
    19 KB (2,047 words) - 07:10, 22 July 2024
  • Thumbnail for Chondrule
    Chondrule (category Chondrite meteorites)
    in a chondrite. Chondrules form as molten or partially molten droplets in space before being accreted to their parent asteroids. Because chondrites represent...
    10 KB (1,122 words) - 16:42, 6 July 2024
  • Thumbnail for Age of Earth
    20–24, 2001). "In-situ ion microprobe U-Pb dating of phosphates in H-chondrites" (PDF). Proceedings, Eleventh Annual V. M. Goldschmidt Conference. Hot...
    45 KB (5,455 words) - 05:17, 28 August 2024
  • Thumbnail for List of unusual deaths
    from where the blast occurred, showed the "presence of carbonaceous chondrites".[verification needed][verification needed] Irma Bule 4 April 2016 The...
    422 KB (29,678 words) - 19:59, 5 November 2024
  • Thumbnail for M-type asteroid
    Their spectra are similar to those of iron meteorites and enstatite chondrites, and radar observations have shown that their radar albedos are much higher...
    26 KB (2,585 words) - 01:50, 18 October 2024
  • Formed farthest from the sun, the carbonaceous chondrites have the highest K/U ratios. Ordinary chondrites which form closer in are only about 10% depleted...
    11 KB (1,247 words) - 23:08, 18 October 2024
  • Thumbnail for Ocean
    "Meteorite study suggests Earth may have been wet since it formed – Enstatite chondrite meteorites, once considered 'dry,' contain enough water to fill the oceans...
    127 KB (16,967 words) - 06:20, 1 November 2024
  • Core samples have shown it to have been formed by the impact of an L chondrite asteroid estimated to have been 5 to 10 km (3.1 to 6.2 mi) in diameter...
    5 KB (525 words) - 16:52, 10 October 2024