-10°30' 
ivent 
avour 
1ains 
up a 
n the 
zil. It 
thod 
re of 
s: a) 
irrent 
sitive 
/pe 2 
near; 
es to 
gS), 
anca 
Suite 
alba 
Z0ic 
aphic 
athic 
ic to 
artz- 
c to 
11225! 
LEGEND i 
and 
ding. [] Cenozoic Deposits Type 1 Linsumenb 
iotite Parnaiba Basin ae 
train Sedimentary Scquences (PBSS) ra Type 2 Lineaments 
sive 
nit is Ipueiras Granitic Suite (IGS) N 
with Matanga Metagranitic Suite (MMgS) 
[e] Monte do Carmo Formation (MCF) 4» ^ Artesanal Mining 
Es | Natividadc Mctasscdimentary Suite (NMS) 
ainly / Córrcgo Cachimbo Granitic-gncissic Suite (CCGgS) 
tes, m E) 
ites, APR E Porto Nacional Complex (PNC) 0 10KM 
hitic 
Jartz 
and 
  
48°25' 
Fig.1 Litological and lineaments map of the Porto Nacional (TO) region. The positions 
discussed in the text are defined by the white circles (modified from Cunha 1996). 
are 
ihich 
tonic 
arse 
173 
International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B7. Vienna 1996