300 WHITE AND SCHUCHERT—CRETACEOUS SERIES OF GREENLAND. 
Kaersut.—A little east of Pagtorfik the old crystalline rocks rise above 
tide (see plate 26, figure 1), and continue three or four miles to the west 
of Kaersut (Karsok), where a considerable mass of this rock is laid bare. 
Back of Kaersut it may be followed along the gorge to an elevation of 
over 360 feet, where it is concealed by extensive glacial boulder deposits.* 
The Cretaceous series is exposed in the bed of the shifting stream at 
580 feet above tide, but no determinable plants were found until we 
passed over the thin-bedded gray, sandy shales, thin sandstones, bluish 
or dark sandy shales, with coaly streaks to 700 feet above tide. Here 
well preserved plants occur in thin-bedded, black, slightly argillaceous 
shales. Slight dips to the northward and northeastward are here notice- 
able. 
No dicotyledonous plants were found at Kaersut, which appears to 
furnish a typical Kome flora. The following is a partial list of the plants 
secured here: 
Thyrsopteris n. sp. ? Equisetum amissum Hr. Kikps. 
- Asplenium dicksonianum Hr. Ks. Cyparissidium gracile Hr. Kkps. 
Pecopteris borealis Brongn. Kks. Sequoia reichenbachii Gein. Kkps. 
Gleichenia rigida Hr. Kks. S. ambigua Hr. Kkps. 
G. zippei (Corda) Hr. Kkps. S. gracilis Hr. Kkps. 
G. longipennis Hr.? Kkps. Dammara sp. ? 
G. gracilis Hr. Kkps. 
Above the plant bed, at 750 feet above tide, the Cretaceous series con- 
sists of dark sandy shaleS with coaly streaks, greenish conglomeratic 
sandstones, thin coals, thin gray soft sandstones, and dark sandy shales, 
sometimes filled with coaly smut. At an altitude of about 880 feet the 
shales have the appearance of being baked, particularly a coaly seam, 
which is coked and cemented to the slightly argillaceous sand. This 
horizon is a few feet beneath the base of a perpendicular cliff, more than 
200 feet high, of heavy, horizontally bedded peridotite. In the sedi- 
mentary rocks above this extensive intercalated basalt series, at 1,346 
feet above tide, Steenstrup 7 rediscovered the one-foot layer of graphite 
first described by Rink. Above this series the Tertiary basalts rise in 
steeply sloping knobs to the height of 6,250 feet above tide in the Kiler- 
tinguak peak. ‘The occurrence at Kaersut of native nickel-iron in the 
basalt is also worthy of mention. 
Ujarartorsuak.—Soon after leaving the hill of old crystallines and the 
glacial stream to the west of Kaersut. the Cretaceous is again seen along 
the shore in cliffs of about 100 feet in height.. The series here con- 
* This region has been briefly described by Nordenskiold in Geol. Mag., vol. ix, 1872, pp. 427-449, 
and Steenstrup, Meddel. om Gronl., v, 1893, pp. 56, 57; Heer, Fl. Foss. Arct., vii, 1883, pp. 235, 236. 
f Op. cit., p. 236. 
