Subduction-driven shortening and differential exhumation in a Cadomian accretionary wedge: The Teplá-Barrandian unit, Bohemian Massif

Abstract

Magnetic mineralogy of the Precambriam sediments in the Teplá-Barrandian unit was investigated for the purpose of tectonic interpretation of magnetic anisotropy. In addition to phyllosilicates, pyrrhotite and siderite was found as the carriers of magnetic fabric.

Pyrrhotite and siderite-bearing samples cannot be interpreted together with phyllosilicate-bearing samples.

Keywords

• accretionary wedge
• anisotropy of magnetic susceptibility (AMS)
• Teplá-Barrandian unit
• Bohemian Massif
• Cadomian orogeny
• Variscan orogeny