NO. 2.] 



GEOLOGICAL SKETCH BY NANSEN. 



31 



According to what has been said before in this sketch, there should 

 probably be the following succession of Jurassic sedimentary strata at Cape 

 Flora, in descending order (cf. fig. 7): 



280 m. A plant-bearing bed of sandstone, 

 (900 feet) probably between fourth and third, or 

 betweeu fifth and fourth tiers of basalt 

 (fig. 7, fc). 



210 m. A plant-bearing bed, principally of 

 (700 feet) silicious rock, between third and sec- 

 ond tiers of basalt (fig. 7, I). 



200 m. 

 (660 feet) 



175 m. 

 (575 feet) 



In the soil on top of the first or low- 

 est tier of basalt, a Jurassic forest has 

 been growing, branches and trunks of 

 which have been found, in a carbo- 

 nized or charred condition, enclosed in 

 the second tier of basalt (fig. 7, be- 

 tween I and II). 



Base of the basalt. 



175 m. Black shale * inches (in contact with' 

 (575 feet) the basalt and somewhat 



hardened). 

 Black shale I'/a inch (not so much 



hardened). 

 Greenish grey shale 3 inches (not so 



much hardened). 



A lighter coloured brownish soft clay, 

 the depth of which was masked by 

 the talus heaps (fig. 7, f). 



175 m. Soft clay 3 feet thick, immediately 

 (575 feet) below the basalt (fig. 7, f); and under 

 this clay a bed of basalt with lava- 

 like structure, 6 feet thick. 



;168 m. Soft clay beds of great thickness, with 

 (550 feet) bands of nodules of clay-sandstone 

 (fig. 7, d). 



On top of Cape 

 Flora cliffs, north 

 of Elmwood (fig. 1, 

 fc), (The plant-fos- 

 sils found on a nun- 

 atake farther north 

 (fig. 1, i) belong 

 perhaps to nearly 

 the same horizon). 



In the cliffs above 

 Windy Gully (fig. 

 1,1). 



On the south face 

 of Cape Flora cliffs. 



A specimen of Ammo- 

 nites Lamberti (New- 

 ton) was found (by 

 Kcettlitz) enclosed in 

 the basalt- 



No fossils found. 



Above Elmwood 

 (near fig. 1 d). 



East of Elmwood 

 (fig- 1. f, f). 



No fossils found, but 

 Quenstedtoceras (see 

 Pompeckj) and Amtn. 

 Lamberti possibly or- 

 iginate somewhere near 

 this horizon. 



Fossils found in situ, 

 described by Newton 

 as Amm. (Cadoc.) 

 Tshefhini etc., see 

 Pompeckj's descrip- 

 tions later. 



Above Elmwood 

 (fig. 1, d). 



Above Elmwood 

 (fig. 1, d). 



