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Personen: Arslan, Arzu (Autor) 
Passchier, Cornelis Willem (Autor) 
Köhn, Daniel (Autor) 
  
Titel: Foliation boudinage
  
Quelle: Journal of structural geology. Bd. 30. H. 3. S. 291 - 309
Erscheinungsjahr:    2008
ISBN / ISSN: 0191-8141
URL der Originalveröffentlichung doi:10.1016/j.jsg.2007.11.004
  
Dokumentart:
Zeitschriftenaufsatz Zeitschriftenaufsatz
Sprache: Englisch
Open Access:
Person der Universität:    Passchier, Cornelis Willem  In UnivIS suchen ; Köhn, Daniel  In UnivIS suchen 
Einrichtung: Institut für Geowissenschaften
DDC-Sachgruppe:    Geowissenschaften
DFG-Fachgebiet: Geologie und Paläontologie
ID: 16328  Universitätsbibliothek Mainz
Hinweis:
Informationen zu den Nutzungsrechten unserer Inhalte Informationen zu den Nutzungsrechten unserer Inhalte
Abstract: Foliation boudinage is a form of boudinage that develops in foliated rocks independent of lithology contrast. This paper describes foliation boudins from the Çine Massif in SW Turkey and the Furka Pass-Urseren Zone in central Switzerland. Four common types of foliation boudin structures can be distinguished in the field, named after vein geometries in their boudin necks in sections normal to the boudin axis: lozenge-, crescent-, X- and double crescent-type. The boudin necks are mostly filled with massive quartz in large single crystals, commonly associated with tourmaline, feldspar and biotite and in some cases with chlorite spherulites. The presence of blocky crystals and chlorite spherulites suggests that these veins formed as open, fluid-filled cavities during the initiation and development of foliation boudin structures, even in ductilely deforming gneiss at a depth of mid-crustal levels (7-10 kbar). The presence of cavities allowed the formation of closed fishmouth structures that are typical for many foliation boudins. The geometry of foliation boudin structures mainly depends on initial fracture orientation, propagation of the fracture during further deformation, and flow type in the wall rock.
   
  
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