PDF COPY - Manuel berberian

, Lar Trend: ~his trend produced destructive
shocks (Table II) one of which had a NN-SE thrust
mechani-~m (Figs. 5 and 7). ~he Lar trend also
coincides with some sedimentary facies changes.
The trend is situated in the zone of the
approximate southern and southeastern limit of the
lo~er Cretaceous Gadvan Formation and corresponds
with the southwestern boundary of the upper
Cretaceous-lo~er Eocene Sachun evaporltes [James
and Nynd 1965]; is in the zone of the southwestern
boundary of the Eocene shallow marine carbonates
in the north (Jahrom Formation) and the
transitional shallow marine carbonates and neritto
to basinal marls of the Eocene Pabdeh Formation in
the south [James and ~ynd 1965]; and finally lies
in the boundary region of the lower to middle
Nloeene Razak red beds in the north and the
northeastern limit of the Gaohsaran evaporite
facies in the south [James and Wynd 1965, Stoeklin
1968a].
c. Qlr Trend: This trend is based on 5 destructive
earthquakes (Table II) t~o of which with h~-SE
thrust mechanisms (Figs. 5 and 7). The trend
located along the transition between the louer
Miocene Razak red beds in the northeast and the
Mlocene Gachsaran evaporltes in the south and
southwest [James and Nynd 1965, Stocklln 1968a].
d. Mishan Trend: T~o shocks (Table If), one with
NN-SE thrust mechanism fall on this trend. It
follo~s the surface break of the Mishan fault
[Barbarian and Tchalenko 1976b] (Fig. 5). The
trend could possibly be the southeastern continuation
of the Dezful trend (see Fig. 5).
e. Izeh Trend: This trend is based on four
earthquakes (Table II and Fig. 5) and follow the
northern boundary of the Dezful ~nbayment [Morrls
1977].
f. Kerend Trend (near Iraqi-lranlan border zone):
Four destructive and damaging earthquakes (Table
II) occurred along this trend (Fig. 5). The trend
coincides ~th the southwestern boundary zone of
the upper Cretaceous-Paleocene ~mlran flyech;
southern boundary of the io~er Eocene Kashkan
evaporltes; and the northern llmlt of the nerltlc
to baslnal Eocene Pabdeh marl in south, and the
southwestern limit of the shallow marine
carbonates of the Jahrom Formation in the north
[James and Wynd 1965, Rteou 1976].
g. Mehran Trend (along the Iraq border): This
trend contained five shocks (Table II) three
which had a NW-SE thrust mechanism (Fig. 5). The
¯ trend is situated along the southern edge of the
Zagros folds.
The damage zone of a few earthquakes in the
Zagroa corresponds, at the surface, to major
boundary faults (Table III). Usually the
Precsmbrlan ~ormoz salt is lntruded alor~ these
faults, reaching the surface. This indicates that
46 BERBERIAN