Record details

Title
    Identification of the shock effects in the the Avanhandava H4 Chondrules Based on the coercivity spectra of the remanent magnetization
Author
    Kletetschka, Günther
    Kohout, Tomáš
    Pesonen, L. J.
Conference
    Lunar and Planetary Science (38. : 12.03.2007-16.03.2007 : League City, Spojené státy americké)
Language
    anglicky
Publication type
    abstrakt
Source title - monograph
    Lunar and Planetary Science XXXVIII papers presented at the Thirty-eighth Lunar and Planetary Science Conference : March 12-16, 2007
Pages
    1773.pdf-1773.pdf
Notes
    Překlad názvu: Identifikace šoku v chondrulích meteoritu Avanhandava H4 na základě analýzy spektra koercivit remanentní magnetizace
    Rozsah: 2 s. : CD-ROM
    Výzkumný záměr: CEZ:AV0Z30130516
Subject category
    chondrule
    impact process
    magnetism
Keyword
    Avanhandava
    Based
    Chondrules
    Coercivity
    Effects
    H4
    Identification
    Magnetization
    Remanent
    Shock
    Spectra
Abstract (in english)
   The extraterrestrial material can carry remanent magnetization of the space origin. The magnetized space material can be later exposed to various shock events (impacts, collisions, Hayabusa type sampling procedure) which can have significant demagnetization effect. The REM (AF) method was applied on chon-drules from Avanhandava H4 meteorite. The general trend of the REM (AF) curve obtained from shock experiments is similar to that the REM (AF) curve constructed from NRM of the Avanhandava chondrules giving the evidence for the shock history of the Avanhandava material. The method can be used for identi-fication of the shock history of space materials (chon-drules, meteorites, sample returns) after careful exclu-sion of the meteorites containing superparamagnetic component. Both natural (impacts, collisions) and arti-ficial (Hayabusa type sampling procedure) shock events can be identified.
Contributor
    AV ČR Brno, Geologický ústav
Contributor code
    AV ČR, GLÚ
Source format
    U
Import date
    8. 8. 2012