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coast of Sermilik Fjord. At the higher levels it is everywhere 
covered by the volcanic series. 
The nordmarkite is a reddish-gray, coarse-grained syenite, 
which in outer habit shows a certain amount of resemblance 
to Broccer’s typical nordmarkite from the Christiania district. 
The main constituents are felspar, which is in part light-gray 
and fresh, in part light-reddish and weathered; frequently the 
central parts of the crystals are pure gray, changing to a more 
reddish colour towards the periphery. These colour-shadow- 
ings give the rock a characteristic, mottled appearance. The 
form of the felspar crystals is irregular, most being elongated, 
one or two centimeters in length by half a centimeter broad. 
In some varieties of the nordmarkite the felspars show distinctly 
rectangular outlines. The dark-coloured minerals are hornblende, 
pyroxene and biotite. Quartz is frequently present but only in 
very small amount. 
At Panernak, about 2 kilometers north-west of Narsak, 
where the junction of the nordmarkite and the essexite can be 
studied in the cliffs along the shore, we find that the nord- 
markite is younger than the essexite. The contact-plane is al- 
most vertical and the difference in age of the two rocks is 
manifest from the following observations. 
(1) The essexite has a marked flow-structure, which is cut 
across transversely by the nordmarkite. 
(2) The essexite has a uniform, coarse grain right up to 
the contact, while the nordmarkite shows extreme variations 
in size of grain in a zone about 20 meters broad along the 
contact, due to the alternation of coarse pegmatite-like and 
fine-grained bands and patches. 
(3) A fragment of essexite (two or three square meters 
large) was found in the nordmarkite near the contact. 
The junction between the nordmarkite and the porphyritic 
rocks is finely exposed above Narsak on the south-west slope 
of Mount Kakarsuak, where the nordmarkite is covered by the 
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