Magnetic fabric of Araguainha complex impact structure (Central Brazil): Implications for deformation mechanisms and central uplift formation

The weakening mechanisms involved in the collapse of complex impact craters are controversial. The Araguainha impact crater, in Brazil, exposes a complex structure of 40km in diameter, and is an excellent object to address this issue. Its core is dominated by granite. In addition to microstructural...

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Veröffentlicht in:	Earth and planetary science letters 2012-05, Vol.331-332, p.347-359
Hauptverfasser:	Yokoyama, E., Trindade, R.I.F., Lana, C., Filho, C.R. Souza, Baratoux, D., Marangoni, Y.R., Tohver, E.
Format:	Artikel
Sprache:	eng
Schlagworte:	Acoustics Araguainha Brazil Collapse complex impact crater Craters Deformation Fabrics magnetic anisotropy Mathematical models microstructures Orientation weakening mechanism
Online-Zugang:	Volltext
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