The marine Carboniferous of North-east Greenl. and its Brachiopod Fauna. 519 



a large amount of mica (biotile) and some felspar; the cementing 

 substance is brownish, clayey or chloritic. Compared with the rock 

 described above, from 85 metres above sea-level, the constituent 

 parts of the original granite or gneiss must have undergone a more 

 thorough alteration, the clayey cementing substance, especially, 

 pointing to deposition at a somewhat greater distance from the coast. 

 According to Dr. Wegener, this rock covers the sandstone shales 

 which contain the plant-fossils. The level of these shales, then 

 should be between 85 and 155 metres above sea-level. 



At the same place, W. of Koch's section, there have been found 

 at a level of 10 metres above the sea, some fragments {N:os 180, 193, 

 199, 200, 202) of a red-gray to chocolate-coloured limestone with 

 some dark slickensides without other megascopically visible fossils 

 than fairly large trunks of Chaetetes radians Fisch. Megascopically, 

 the rock looks almost close-grained, but, under the microscope, it 

 proves to be very finely crystalline in structure, containing numerous 

 spherical bodies about 0.2 mm. in diameter, and a few fragments 

 of fossils, including rotaliform Foraminifera, no Fusulina being ob- 

 served. These fragments have, of a certainty, fallen from higher 

 levels. 



Koch's section. From this locality there is a series of lime- 

 stones, all of which have been obtained at a height of 200 metres 

 or more above sea-level, partly from the solid rock and partly as 

 free-lying stones. 



At 200 metres above the sea there have been obtained from the 

 solid rock, partly a gray limestone (N:o 14-4-), and also a reddish 

 limestone {N:o 155). The gray limestone is almost close-grained, with 

 small veins of calcite, which are more clearly visible under the 

 microscope; of the smaller fragmentary fossils the greater part were 

 particles of crinoids, but there are also rotaliform Foraminifera 

 and some few Fusulinae. It is fairly evident that this gray lime- 

 stone has been stratified alternately with more shaly deposits. Of 

 fossils it contained a gastropod shell, probably Euomphalus sp., a 

 pygidium of a trilobite and small crinoid stem-joints. The red lime- 

 stone {N:o 155) is an impure, clayey, greatly re-crystallized red or 

 red-brown rock, which has evidently alternated with shales and 

 clays. This rock agrees very nearly with the rock from Beeren 

 Eiland, called by J, G. Andersson Ambigua limestone. Of the 

 same rock (Wegener mentions "red sandstone" in his list) there are 

 a couple of loose fragments (N:os 1A3 and 19Ï) containing 2 specimens 

 of Euomphalus sp., found somewhat lower than 200 metres above 

 the sea; a rugose coral {N:o Ы5) derives from the solid rock at 200 m. 



At the same level, 200 metres above the sea, there has been 



