Page 6 - Corti_2006

C D

CROP M24

SICILY off-shore
PELAGIAN shelf

CROP M24 NE

Figure 6. Seismic reflection profile of the Sicily Channel showing the coexistence of the rift and the accretionary prism, both processes de-
forming the seafloor (Seismic section CROP M24, Scrocca et al., 2003). Red lines normal faults, black lines thrust faults.

Figure 7. Velocity vector analysis in the
Sicily Channel. The blue vectors rep-
resent the velocities of GPS stations
reported in a fixed CAGL (Cagliari) ref-
erence frame (data from Hollenstein et al.,
2003), and they imply active northwest-
southeast contraction of NOTO (Noto)
and LAMP (Lampedusa) relative to
CAGL in Sardinia. The red vector is the
relative motion velocity of NOTO with
respect to fixed LAMP, and it represents
the rifting rate in the Sicily Channel.
This confirms the coexistence of two
presently active tectonic settings, such as
a northwest-southeast-trending compres-
sion and a northeast-southwest-trending
extension in the same area. Map gener-
ated with the Generic Mapping Tools of
Wessel and Smith (1995).