Pierwiastki syderofilne w meteorytach Morasko

• Authors: Andrzej S. Pilski , Ryszard Kryza , John T. Wasson , Andrzej Muszyński , Łukasz Karwowski

Title variants

EN

Siderophile elements in the Morasko meteorites

• Languages of publication: PL

Abstracts

EN

Sixteen specimens of the Morasko, one specimen of Seeläsgen and one specimen of Jankowo Dolne irons were analyzed with INAA to determine contents of 14 siderophile elements. The samples selected for analyses have their structures described and the presence or absence of cohenite checked. For preliminary interpretation, we have chosen elements determined with highest accuracy: Co, Ni, Ga, As, Ir and Au. The results are shown in tables and diagrams. It has been found that there are no significant differences in composition between fragments with and without cohenite. The observed low contents if iridium are not accompanied by lower contents of elements showing similar behavior during crystallization: platinum and tungsten, which suggests that fractional crystallization was not the reason of lower iridium content. Similar concentrations of elements have been found in all the Morasko specimens, and in the Seeläsgen and Jankowo Dolne irons, which suggests that all these meteorites come from one iron shower.

Keywords

EN

Jankowo Dolne; Morasko; Seeläsgen; iron meteorites IAB; meteorites; siderophile elements

Discipline

• GEOPHYSICS: GEOPHYSICS

• Journal: Acta Societatis Metheoriticae Polonorum
• Year: 2012
• Volume: 3
• Pages: 62-70

Contributors

author

Andrzej S. Pilski

• Muzeum Mikołaja Kopernika we Fromborku,

author

Ryszard Kryza

• Instytut Nauk Geologicznych, Uniwersytet Wrocławski

author

John T. Wasson

• UCLA, Department of Chemistry and Biochemistry

author

Andrzej Muszyński

• Instytut Geologii, Uniwersytet im. Adama Mickiewicza

author

Łukasz Karwowski

• Wydział Nauk Geologicznych, Uniwersytet Śląski

References

• Lieser K.H., 2001. Nuclear and Radiochemistry. 2nd Ed.: John Wiley & Sons, Inc.
• McSween Jr. H.Y., 1999. Meteorites and Their Parent Planets. Second Edition, Cambridge University Press.
• Wasson J.T., Ouyang X., Wang J., Jerde E., 1989. Chemical classification of iron meteorites: XI. Multi-element studies of 38 new irons and the high abundance of ungrouped irons from Antarctica. Geochim. Cosmochim. Acta 53, 735–744.
• Wasson J.T., Ouyang X., 1990. Compositional range in the Canyon Diablo meteoroid. Geochimica et Cosmochimica Acta 54, 3175–3183.
• Wasson J.T., Kallemeyn G.W., 2002. The IAB iron-meteorite complex: A group, five subgroups, numerous grouplets, closely related, mainly formed by crystal segregation in rapidly cooling melts. Geochim. Cosmochim. Acta 66, 2445–2473.

• Document Type: article