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Group, is post-Sturtian in age and correlated with the Haut-
Shiloango Subgroup (Daly et al.
1992
; Trompette
1994
).
The lack of time constraints makes it difficult to establish
detailed stratigraphic correlations. Nonetheless, on the basis
of the lithological evidences and the stratigraphic position of
the Lower Diamictite Formation from the CAR, the Ituri
Group can be correlated with the Bougboulou and Kemb
´
-
Nakando series. The Akwokwo Tillite is correlated with the
Sturtian-equivalent Lower Diamictite Formation (Poidevin
2007
). However, recent lithological observations show that
cap carbonates are ubiquous of the post-Marinoan event,
except for the Grand Conglom´rat Formation (Master and
Wendorff
2011
). Accepting the
References
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evolu¸˜o
'
'
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'
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Conclusion
Based on the present knowledge of the Neoproterozoic
basinal litho-stratigraphy exposed along the margins of
the Congo Shield, an attempt of chronostratigraphic
correlations has been established between the isolated
basins in the Democratic Republic of the Congo and
neighboring countries. We conclude that: (i) the lithostra-
tigraphy of each sedimentary basin may be used for
intrabasinal and interregional correlations; (ii) all the
Supergroups may be potentially broadly synchronous
based on widespread climatic markers, represented by
glacial deposits. However, such correlations remain inad-
equate because of the lack of precise such as biostratigra-
phy, sequence stratigraphy, and palaeomagnetism. New
chemostratigraphic and geochronological data for the
Neoproterozoic sedimentary series of Central Africa are
thus sorely needed.
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´
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Begg GC, Griffin WL, Natapov LM, O
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Reilly SY, Grand SP, O
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Neill
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'
Acknowledgments The manuscript has been greatly improved fol-
lowing reviews and suggestions of H Frimmel and M. de Wit. We
would like to thank M. Rottesman for her critical encouragement.
'
Afrique Centrale, Tervuren, Belgique, S´rie in-
8-n
74, 45 pp
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