g- Fuic.hardgrmfl 
I I s* bout -tUU X'l uf»5f>vwn/no« v this point is tJiM> qocrtxsis/ MIOCnJi 
\J one cfthc moft dangerous rapids ui eho Upper- Ra/sjcxra: 
I PUerr/cd teds ofjaspertvdJc radteJaria StrikoNSON (IT (3(T) 
cliffs Oil. both, stdas ofthe rtoer Strong jurrail 
qrvuwadol^andstDlte. containing pieces of 'chart 
■ouax 23-^5 June 
I U 137 / 
-AlUroJ. uraUUltd quarts .diabase .tonverUi! by pressure 
S-Jnjperon-both su/xsafihe rhler. Str VS , tuiti^nl 
■Vr^ T ' h 
an dmphiUitic rook 
J'lircJcd and crushed^ 
Chxrt ■wUKraditAanapi ltd/ I \ 
(horse qrcuwacks loruUlone 
tv ill • fragment! of chart* | j S 
Fax ’n-iditonr clottlyaVUd lo^' 
yrtyusad/e .sai.dslimc (J! '-XU 
Th in . bedded redcherl StrK TON ' 
Dark blue chert StrFZiS vn-hcat- 
'U.O nee contauiu, 
>N dip CON W 
dbslarlafU tSS) 
la* nr 
Sands tori 
HfUkiohdc chert 
Moulder iaLojuL . Ttapuis ore bo tJ vs ides 
■Altered quxxrte diabase An ff(JT !Yb) . 
**53^ 
Coerce ngRaJeang Pargcious rapids 0.1 fuller uxxa killed here in. the 
On tilt loft bank overhanging loalts cf silicificd and serpcntxnitcd dia. 
, On. the.ru/ht bank v rocks of fissile. clay slat* covered tvdJi huge 
’June 
sJslatr with hard conci'elu/na 
tear 162 S 
aset II ! 76 , 
Jix* 0 , (J/W 
Waterfall . 3M. hiqhPj 
Contact hornfhls CTl 169) StrateuycrticaL?/ \5fj/ 
S. being AZeL. - ~ (piuirF 1 iicf( U 
alatc alUmabrig a >tihyu<xrti.ite .Str.K /Oy,i»crtuutfLp{* 
ScntfpJU*' 
Contorted and crushed clog slate StrJCEft/ /$£ 
•iecas of chert /If /93) ^Breccia* 
Str E 30 k , dip as SZ 
-Tuff enclosing many flxujtncnis of sUicified diabase (]£ 203) 
r oc rig fcoenoei SUidfcd diabase -tuff Strata -highly irudvicdto S 10 W 
blinks of (Jie riirw law 
nett 
ratable remain* ( 11209 ) 
1 ids to ne to « th- coal .pa rticlas 
= Vj 5 1 Ixcif ted diabase _ luff 
ytefublono orih colcdon-mn^j g^^ftzrh, 
L d»^ i %icd 7 &S 2 * /u ' 
Sandstone Str K 25 E. , dip 40100*', 
•Ortcrction* 
.fi p a 7 s S 'b° en 3 a,u 
Detailed, plan of apart of the Rcja -liver near JV^Doeivai 
S a ndi‘ on “ 
FrdU 10 ' 1 * 
j-luthor'a route 
H JJiotita . dacito 
ID Porous rhyolite with/ irulosures of andcditc and other volcanic rocks 
Hj Perlitic rhyolite . 
S Dac-ite ; old t*jr' resembling guwtx . amfjJixbdla.por/ihyritc 
The Lcja/is 30 Motor broad., the Docwang only -/-? Motor The „• 
The boulder, island ICcuri Tyau is core red with wood .as far ns 
The whole country is covered with dense forest 
Gram* 
Boelit 
The Upper- Kapoe was, the Boengan 
AND THE TRACK PROM THE BOELIT-RIVER ACROSS 
MAHAKKAM- BASIN IN EaST-BoRNEO 
Right bank of Roeivang. rivulet 
drey sandstone alternating with clay shale 
Near the fault, the sb-aia. ana bent, this distortion bein 
in the doirndirovon side of the fault 
WATERPARTING 
TO THE 
