Chlorite Distribution in Fluvial- Marine Deposits,
Borehole K H 8/9,
North Iraq
Kotayba T. Al-Youzbakey
Mumtaz M. Amin
Thamer A. Aghwan
Saddam
Research Centre for
Dept. of Geology
Dams & Water Resources
College
of Science
Mosul University
Mosul
University
kotayba_tawfiq@yahoo.com
Abstract
Clay mineral distributions in Injana Formation and the
underlying Al-Fat'ha Formation show no significant
variation, although their depositional environments are
different. The former is predominantly fluvial whereas
the latter is hypersaline - lagoon. Illite and chlorite
are present in both the red colored fluvial sediments
and in the grey colored lagoonal sediments.
The
only slight variation between the clay mineral suit of
these sediments seems to be the nature of chlorite.
Mg-chlorite variety is abundant in Injana Formation,
while Fe-chlorite is rather dominant in Al-Fat'ha
Formation. This may be related to modification of clay
minerals during neoformation, transportation or
weathering of source rocks.
Rafidain Journal of Science.,
Vol.9, No.l, pp.33-39, 1998
