The late Svecofennian granite-migmatite (LSGM) zone in southwestern Finland is a ~ 100 km wide and 500 km long bell transecting the southern Svecofennides from WSW to ENE. It was formed in an area of thin pillow lavas, volcaniciastic sediments and limestones. The area is interpreted as having been an early basin of crustal extension which was the locus ofan inherited zone of weakness in the Proterozoic crust. Early recumbent folding was followed by crustal thickening and intrusions of - 1.89-1.88 Ga old plutonics.

The LSGM-zone is characterized by 1.84-1.83 Ga old rhomboidal sheets of late Svecofennian microctine granite and is bounded by ductile shears. Amongst the two major phases of deformation defined in the LSGM-zone, the earlier one (D1) affected only the supracrustals and the 1.89-1.88 Ga old early plutonics. In contrast, the later phase (D2) also deformed the late Svecofennian migmatites and granites. Dl represents a complex and long-lasting deformation event which included overturning and thrusting of the Svecofennian strata.

D2 comprised ENE-WSW directed drag accompanied by NNW-SSE compression. The Svecofennian crust was thickened further and anatectic microcline granites intruded along thrusts. The rhomboidal outline of the late Svecofennian granite sheets indicates a sense of movement in agreement with measured dextral strike-slip in the shears delimiting the LSGM-zone. Imbricated feldspar megacrysts in the granites indicate thrusting towards the west during the stage of granitic magmatism. The gently dipping early Svecofennian gneisses and the late granite sheets were folded into upright F2 folds with gently plunging axes. Locally, the F2 axial surfaces were intruded by late Svecofennian granite mobilisates.

Most of the ore deposits of the Manhattan district are gold-bearing veins of a simple type and present no unusual features, but other ores inclosed in a single thin bed of limestone offer interesting problems.

Manhattan is situated in the southern part of the northeasterly trending Toquima Range, about 35 miles north of Tonopah. The Toquima Range is one of the less prominent of the many narrow, isolated mountain ranges which are such notable features of the Great Basin topography. The range is bordered by desert valleys—Ralston Valley and Monitor Valley on the east and Big Smoky Valley on the west. On both sides, but particularly on the west, the boundary between rock in place and valley fill is irregular, in marked contrast to the sharp lines of demarcation on the eastern front of the Toyabe Range, which borders Big Smoky Valley on the west.

As a member of the Danish Government Expedition to East Green­ .fi. land in 1 926-27 under the leadership of Dr. LAUGE Kocu I had ample opportunity of studying the sedimentary deposits within the Scoresby Sound area, especially the Jurassie beds in Jameson Land and Liverpool Land. The present paper deals with the Lias, which l subjected to a particular investigation. It is rny p leasant duty to thank the leader of the expedition, Dr. LAUGE Kocu, for p leasant company and much unselfish assistance during the expedition and for handing over to me for description a number of Liassic fossils from Liverpool Land. I am also indebted Lo Dr. ToM HARRIS, Cambridge, my fellow-member on the expedition, who has p laced valuable Liassic material collected in J ameson Land at my disposal . Finally, my acknowledgements are due to my Greenlandish assistants, who with great zeal assisted me in my work, notably MIKAEL Ku:sAK, Eu l'iAPARTOK, and JoiL\:S ABELSE:s. <...>

The East Indies have long been renowned as a source of profuse and beautifully preserved Middle Jurassic ammonites. The fossil localities are widely scattered. from the Sula Islands in the west to New Guinea in the east and Timor-Roti in the south . Their faunas have been extensively described. and the older accounts were critically reviewed by ARKEL(L1 956). By far the most important collection came from two principal areas: the island of Taliabu in the Sula Islands of the northern Moluccas in Indonesia. described by BOEHM(1 912) and KRUIZING(1A9 26). and various localities around Geelvink Bay in north-western Irian Jaya. in the western part of the island of New Guinea. described by BOEHM(1 913) and VISSER& HERME(S19 62) .