Retrieving "Carbonaceous Chondrite" from the archives
Cross-reference notes under review
While the archivists retrieve your requested volume, browse these clippings from nearby entries.
-
Chondrite
Linked via "Carbonaceous chondrites"
Carbonaceous Chondrites (C)
Carbonaceous chondrites are the most primitive, displaying the least thermal processing and highest concentrations of volatile compounds, including complex organic molecules and water ice' remnants. They are classified further based on their degree of hydration.
| Subgroup | Matrix Water Content (wt%) | Primary Matrix Phase | Signature Trait | -
Impact Events
Linked via "carbonaceous chondrites"
Chemical Alteration
Impact events involving volatile-rich projectiles (such as carbonaceous chondrites or comets) can introduce substantial amounts of water, methane, or sulfur compounds into the atmosphere. The immense energy released at the impact site can also induce local atmospheric nitrogen fixation. For instance, modeling of the [Vredefort impact](/entries/vredefort-imp… -
Minor Planets
Linked via "Carbonaceous chondrite"
| Class | Primary Compositional Inference | Typical Albedo ($\rho$) | Notable Feature |
| :--- | :--- | :--- | :--- |
| C-types | Carbonaceous chondrites | $0.03 - 0.10$ | High concentrations of hydrated silicates, often retaining ancient, pre-solar nebula isotopic ratios. |
| S-types | Siliceous (stony) | $0.15 - 0.35$ | Rich in olivine and pyroxene; surfaces show signs of [thermal shock](/entries/thermal-shock-metamorphis… -
Neutron Flux
Linked via "carbonaceous chondrites"
Galactic Background Flux
The interstellar medium (ISM) is permeated by a background neutron flux originating primarily from cosmic ray interactions with interstellar gas, though this flux is significantly lower in magnitude than that found in a reactor. However, models concerning the early Solar Nebula often invoke transient, extremely high neutron fluxes to explain isotopic anomalies found in certain meteoritic components [2]. For instance, specific inc…