Chondrichthyan fish remains reported from the Permian (Kazanian) deposits of the Chiosha Bay, and the lower course of the Nadtey River of the Kanin Peninsula (Nenets Autonomous District, Arkhangelsk ...Region, Russia) include dental elements and scales belonging to
Stethacanthus
cf.
S. altonensis
(St. John et Worthen, 1875), Symmoriiformes gen. indet., “
Ctenacanthus
” sp. and “
Lissodus
” sp., Euselachii gen. indet.,
Adamantina benedictae
Bendix-Almgreen, 1993 and
Kanodus robustus
sp. nov. The latter genus is assigned to the previously monotypic family Psephodontidae. The record of
Stethacanthus
in the Middle Permian of Russia is its youngest occurrence worldwide, whilst the occurrence of Adamantina benedictae in the Middle Permian of the Kanin Peninsula is older than the Greenland record.
Gömülü üst kanin dişlerin ortodontik olarak sürdürülmesi, birçok ortodontist tarafından zor bir tedavi olarak değerlendirilmektedir. Gömülü dişlerin sürdürülmesi sırasında komşu dişlerde meydana ...gelebilecek kök rezorbsiyonları, rutin tedavi teknikleri dışında farklı mekaniklere ihtiyaç duyulması, ankraj gereksinimlerinin fazla ve farklı olması gibi nedenler tedavinin güçlüğüne sebep olarak sayılabilir. Bu çalışmada, Kilroy spring isimli gömülü kaninlerin sürdürülmesi amacıyla dizayn edilmiş, devamlı kuvvet uygulayan ve tüm üst dişlerden ankraj alan bir aparey kullanılarak tedavi edilen 2 vaka sunulmaktadır.
Investigation of the distribution of basalts, dolerites, and tuffs in the Kanin–Timan–Pechora large igneous province was completed by generalization of data of geological surveys and analysis of the ...data of deep drilling. The province appears like a nonisometric ellipse and extends northwestward for a distance of nearly 850 km at the width of 250–500 km. Its area is nearly 285 000 km
2
. The area of the volcanic rocks is about 85 500 km
2
. The volume of eruptive material alone could be equal to 1000–1200 km
3
. The age of formation of the traps corresponds to the late period of activity of the process and was less than 7 mln. y. The formation of the province was result of the action of short-lived and low intensity plumes. But it was one of the episodes of the Late Devonian superplume event in the East European platform. The province is separated by an amagmatic area from neighboring magmatic provinces of the same age. The distance between borders of the provinces is 200–400 km.
In terms of neotectonics, the Timan Range and Kanin Peninsula represent a spacious mountainous structure 1150 km long and 80160 km wide extend ing in the northwesterly direction from Mount Poly udov ...Kamen to Cape Kanin Nos in the Kanin Penin sula. It consists of isolated en echelon arranged horst like uplifts with Upper Precambrian rocks cropping out in their arch parts. In the southwest the Timan Range borders the Pechora Plate that frames the Kare lian part of the East European Platform in the north east. The boundary between the Pechora Plate and Mezen megablock of the East European Platform cor responds to the West Timan deep seated fault.
The anthropogenic changes of permafrost are studied at the key sites in the European North, i.e., Koida Village (Mezen’ tundra), Nes’ Village (Kanin Peninsula), Shoina Village (Kanin Peninsula), ...Mezen’ Town, Vashutkiny Lakes (Bol’shezemel’skaya tundra), Amderma (Yugorskii Peninsula), and the northern part of Vaigach island. Geocryological characteristics of the sites are provided, and the main types of anthropogenic changes in permafrost conditions are described.
PDF
