Page 39 - Sumatra Geology, Resources and Tectonic Evolution
P. 39
26 CHAPTER 4
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96 ~ 102 ~ 104 ~ 106 ~
CARBONIFEROUS
Tapanuli Group
_8 ~
Bohorok Formation
/ Alas Formation
LANGKAWI~ Kluet/Kuantan
ubang ~,
_6 ~ ;inaa Formation Formation
~3 =asu "k,,
BANDA ACEH ,rmation-~"~7/._ [ 5 :~ 61 'Quartzite Terrain'
a %
_4 ~
TAPAKTUAN~t
Kreung Klue
Lake
( ~ SIDIK/
.%
_2 ~
~A~
x0 \ Member
L
_0 o
Lake
Sinekar
q;
mMUARABUNGO NGKA
-~:,.~,~#
9 .
Duabelas ~:~
Q
_2 ~
Tarantam Form;
PALEMBANG II
_4 ~
i Garba Mountains
T ra0 Forma,ion )
~Gunungkasih
LZ~,',, ~ Complex
TA G'--0 ~,TANJUNG
0 100 200 300 400 500km KO AGUNG ~... ~ARANG
_6 ~ ",,3 "' ~ ~6Lz
96 ~ 98 ~ 100 ~ 102 ~ ~o4o 11o6o
I I I I I I/
Fig. 4.2. Distribution of Carboniferous to ?Early Permian rocks in Sumatra from GRDC geological maps. Dense tones indicate outcrops, the filled circles indicate
Carboniferous rocks encountered in boreholes, paler tones indicate subcrop beneath Late Palaeozoic, Mesozoic, Tertiary and Quaternary sediments and volcanics.
