Fig. 1 (continued)
footwalls of low-angle detachment faults (Cann et al. 1997 ; Blackman et al. 1998 ;
Tucholke et al. 1998 ; Escartín et al. 2003 ; MacLeod et al. 2009 ).
Normal faults are expected to develop increasing offset with increasing tectonic
extension. Many earlier models of OCC formation (e.g., Tucholke et al. 1998 ;
Blackman et al. 1998 ; Escartín et al. 2003 ) considered that amagmatic extension
along a given section of ridge segment was important for long-lived detachment
faulting. However, recent studies instead suggest that magmatic supply is the key