Etude stratigraphique, pétrographique et diagénétique des grès d ...

tel-00534181, version 1 - 9 Nov 2010
Chapter I
(b)
31
Figure 9. (b) Schematic geological
cross-sections, from
south to north, across: (1)
MTG-1 Profile: the Lapur
Range and the western side of
the Lake Turkana Basin,
through the Todenyang Plain
at 04°25’N; (2) MTG-2
Profile: the Kachoda Basin,
the Lokitaung Range and
Gorge, and the Lowarengak
alluvial plain; (3) MTG-3
Profile: the Lake Turkana
alluvial plain immediately
west of the Murua Rith-Lapur
Range. This cross-section
strictly follows the trace of the
TVK-10 seismic line (Amoco
Kenya Petroleum Company).
These sections have been
constructed on the base on
fieldwork (for the surface
interpretation), and seismic
(Wescott et al., 1999) and
magnetotelluric and gravity
data (Abdelfettah, 2009) for
the subsurface interpretation
of the MTG-2 and 3 lines. The
subsurface interpretation of
the MTG-1 line is in this figure
only based on the interpretation
of the TVK-10 seismic
line by Wescott et al. (1999).
An other interpretation is presented
further on Figure 19b.