773 
and the bay of Carpentaria, New-Guinea and the islands of Misool, 
Waigeu, Batanta, Salawati, west of it. 
Between those two landmasses lies an area in which deep sea- 
basins alternate with upheaved islands. The region of the curving 
rows of islands (the Timor-Ceram row and that of the young active 
volcanoes) considered by us, presents an aspect similar to that which 
parts of the geo-synclinal of the Mediterranean region must have 
presented in some part of the mesozoic period. 
In the Jurassic period several geo-anticlines were formed in the 
latter region, which divided the original geo-syncline into a number 
of secondary geo-synclines and in connection with the parallelism 
between the direction of the (more recent) alpine mountain ranges 
and the axes of these mesozoic geo-synclinals, Haug‘) thinks it legi- 
timate to assume that the formation of these mesozoic geo-synclines 
is due to beginning mountain-building movements. MoLENGRAAEF *) 
assumes on the ground of different features of the curving rows of 
upheaved islands of the Moluccas and of the adjacent deep sea-basins, 
that these islands have originated in the same way. 
The outlying position of the Tenimber islands. 
If we imagine the islands to the east of Timor (Letti, Moa, Lakor, 
Luang, Sermata and Babber) joined by a curve to the islands south- 
east of Ceram (Drie Gebroeders, Kur, Téor, Kasiwui, Gorong and 
Ceram Laut) the islands of the Tenimber group will be seen to lie 
outside this curve. This curve is e.g. also found on map N° 1 of 
Verserk’s Molukken Verslag*), on which the Tenimber islands and 
the Kei-islands are lying outside his “belt of older rocks”. 
Now it is striking, that im the Sahulbank, which constitutes the 
submarine continuation of the Australian block — 1%. e. the “ Vorland” 
1) E. Haua. Traité de Géologie. II, p. 1127. 
3) G. A. F. Motencraarr. On recent crustal movements in the island of Timor 
and their bearing on the geological history of the East-Indian Archipelago. Proc. 
Kon. Ak. v. Wetensch. Amsterdam. June 1912, 
3) RB. D. M. Verserk. Molukken Verslag. Jaarb. v. h. Mijnwezen 1908. Wetensch. 
Ged. Allas. Kaart |. 
See also: A. WicHmaNnN. Gesteine von Kisser, Jaarb. v. h. Mijnw. 1887, p. 120 
and Samml. des Geol. Reichsmus. in Leiden. (The curving row of islands, 
separating the Banda Sea from the Arafura Sea is also here represented as a 
mountain range). Ibid. Der Wawani auf Amboina und seine angeblichen Ausbriiche. 
UL Tijdschr. Kon. Ned. Aardr. Gen. XVI. 1899, p. 109. 
K. Martin. Die Kei Inseln und ihr Verhältniss zur australisch-asiatischen Grenz- 
linie, Tijdschr. Kon, Ned. Aardr. Gen. VII, 1890, p. 241 ff. 
