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TN QUATERNARY 

MN 

CAINOZOIC 

TRIASSIC 

PERMO - CARBONIFEROUS 

SCALE 1 • 100,000 

[fIHIIHIIHIlH3JRjO==========2EI========~i========:6J~m 

v v v v V 'I V V V 
v vvvvvvvv 

v vvvvvvv 
V VVVVVVV 

,\,,,,",,"" .. V V V V V V V 

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LEGEND 

0------ - ---- - -- -- -----
----

-- - -

+ + + 
+ + + 

+ + "t' 

+++++++++ 
+++++++++ 
+++++'!:+++ 

-

- __ ~ ,r--J "­
, 

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'- , 

Alluvial deposits 

Comendite - plugs 
Alkali rhyolite (younger) - plugs and domes 

Peralkaline trachyte - plugs and ring dykes 

H awaite, trachyandesite , tr istan ite . t rachyte,m inor peralkal ine 
trachyte.and tuffs 

\ 
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r .l 

Alkali monzonite 

Alkali rhyolite (older) - domes 

Teschenite - sills 

Sandstones , shales and minor conglomerates 

Undifferentia ted basement rocks, including sandstones 
coal measures " conglomerates, mudstones, varves, tillite, and 

rhyolitic to andesitic pyroclastics, (see McKelvey and White (1964) 
and White (1965)). 

Geolo gica l boundary 

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Roads 

Rivers and creeks 

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------

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I 

GEOLOGICAL MAP OF THE 

NANDEWAR VOLCANO 
A.J,STOLZ, 1982 

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