Geology Reference
In-Depth Information
RUMPI
HILLS
MOUNT
BANA
BAMOUN
PLATEAU
MOUNTS OKU
& BAMENDA
MOUNT
MANENGOUBA
MOUNT
BANGOU
MOUNTS
BAMBOUTOS
NGAOUDERE
PLATEAU
No un Pla in
Wakwa
O
f
Basalt
CALABRIAN
Basalt
Mugearite
Basalt
GELASIAN
Z-Y
Basalt
Y a
PIACENZIAN
Anloua
ZANCLEAN
Basalt
Basalt
Tchabal
Nganha
Trachyt e
Gabbro
MESSINIAN
Basalt
1
TORTONIAN
1O
Trachyte
Trachyte
Rhyolite
Trachyte
f
Basalt
Gabbro
Basalt
SERRAVALLIAN
V a
Basalt
f
Basic dyke
B.
LANGHIAN
m
m
m
Trachyte
B.
f
Trachyte F. T.
f
Rhyolite
BURDIGALIAN
Rhyolite
B.
2O
Basalt
AQUITANIAN
f
f
m
Trachyte
Trachyte
f
Rhyolite
u1a
Trachyte
m
CHATTIAN
Koupé
Nlonako
u1a
3O
X a
Basalt
2
RUPELIAN
PRIABONIAN
Granite 2
Syenite 3
BARTONIAN
Foumban
4O
Mbepit
Syenite 2
Basalt
1
Rhyolite
Basalt
Syenite 1
LUTETIAN
Gabbro 2
Rhyolitic
dome
Syenite 1
Rhyolite
u1a
Basalt
5O
Granite
YPRESIAN
u1p
Old basalts
highly weathered
undated
THANETIAN
SELANDIAN
6O
DANIAN
Nkogam
Old basalts
highly weathered
undated
assumed
Late Cretaceous
(Lasserre, 1961)
MAASTRICHTIAN
Granite
7 Myr
ICS 2009
Older than..
Walgenwitz in
Nkoumbou (1990)
whole rock K/Ar
f-Fitton & Dunlop
(1985)
whole rock Rb/Sr
Basalt :
1-Nana (1988)
whole rock Rb/Sr
2-Kuepouo et al.
(2006)
K/Ar on feldspars
Fosso et al.
(2005)
whole rock K/Ar
Mbepit :
Wandji et al.
(2008)
whole rock K/Ar
f-Fitton & Dunlop
(1985)
whole rock Rb/Sr
m-Marzoli et al.
(1999)
Ar/Ar on feldspars
f-Fitton & Dunlop
(1985)
whole rock Rb/Sr
m-Marzoli et al.
(1999)
Ar/Ar on feldspars
Wakwa :
Temdjim et al. (2004)
whole rock K/Ar
Tchabal Nganha :
Marzoli et al. (1999)
Ar/Ar on feldspars
1-Lasserre (1978)
whole rock Rb/Sr
2-Caen-Vachette
et al. (1987)
whole rock Rb/Sr
3-Hedberg in
Caen-Vachette
et al. (1987)
K/Ar on feldspars
Foumban :
Moundi et al.
(2007)
whole rock K/Ar
F.T.: Fongo Tongo
B.: Bamboutos
Anloua :
Lettermann (1984)
Oustrière (1984)
whole rock K/Ar
Younger than..
Granite :
Caen-Vachette et al.
(1991)
whole rock Rb/Sr
Nkogam :
Caen-Vachette et al.
(1987)
whole rock Rb/Sr
Fig. 14.10 Chronologic relationships between magmatism and planation surfaces for the Cameroon Highlands
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