The S-19 Cave was with its explored depth of 177 m one of the most important caves of the Mt. Kanin massif, but after its discovery in 1974, a huge snow avalanche protection dyke was constructed ...across the cave entrance. To excavate the buried cave, the accurate location of the cave had to be determined first. Since the entrance coordinates were incorrect and no markers were available, application of geophysical techniques was necessary to do this. A Ground Penetrating Radar (GPR) with special 50 MHz rough terrain antennas was selected as the single suitable geophysical method for the given conditions where thick debris overlay a rugged limestone surface. Nevertheless, it was not possible to directly detect the relatively narrow cave entrance itself due to data resolution limits. However, a historical photo of the area showed that the cave entrance was located in a local depression, which therefore represented the main target of the GPR survey. Seven GPR profiles were measured across the rough and steep surface causing difficulties in traversing the area with sensitive research equipment. In all recorded radargrams a small depression was clearly imaged under debris, and recognized as a topographic feature with the cave entrance. Based on the GPR data interpretation, the exact location for digging was determined and the thickness of debris assessed at 6.5–7 m. A massive excavation by a dredger resulted in a successful opening of the cave entrance, confirming both its geophysically determined location and its estimated depth. The application of an advanced geophysical method was therefore proven successful in providing a solution to this specific case in karst exploration and an important cave was saved.
This paper discusses the distribution of terrestrial vertebrates in the northeastern part of the Kanin Peninsula (67°50′47″ N, 46°20′40″ E) based on the results of their census conducted in July ...2021. In total, 1 amphibian species, 1 reptile species, 57 bird species, and 6 mammal species have been recorded. The following bird species have been recorded in the tundra zone of the Kanin Peninsula for the first time: tufted duck (
Aythya fuligula
L.), common eider (
Somateria mollissima
L.), pallid harrier (
Circus macrourus
S.G. Gmelin), and common sandpiper (
Actitis hypoleucos
L.). A distinct feature of the vertebrate fauna inhabiting this region located in the low-growing dwarf-birch tundra belt is the presence of boreal species, including common frog (
Rana temporaria
L.), viviparous lizard (
Zootoca vivipara
Lichtenstein), tufted duck, common goldeneye (
Bucephala clangula
L.), Eurasian crane (
Grus grus
L.), common sandpiper, brown bear (
Ursus arctos
L.), and European elk (
Alces alces
L). So far, this is the northernmost known habitat of the viviparous lizard. The following factors are favorable for the presence of boreal species in this area: its location on the southern slope of the plateaulike Kanin Kamen Ridge and ruggedness of its relief, including deep river valleys with well-heated slopes protected from winds. It is established that the spatial density of the Arctic fox (
Alopex lagopus
L.) brood burrows has decreased ten times when compared with the 1940–1950s due to the activation of cryogenic processes in permafrost that destroy the burrows dug by this predator in loose soils.
We propose an integrated methodology to image the internal structure, evaluate the volume and estimate the densities of different units within ice bodies, useful for more precise mass estimation of ...very small glaciers. The procedure encompasses light detection and ranging (LiDAR) and ground penetrating radar (GPR) common offset data. The case study is the Canin Eastern Glacieret (CEG), a very small and maritime glacier in the Eastern Alps, and one of the lowermost glaciers of the European Alps. We calculate both volumetric and mass variations of the analysed ice body by integrating GPR measurements with LiDAR surveys acquired in different years (2006 and 2011). Between 2006 and 2011, the area of the glacieret increased from 8,510 to 17,530 m
2
with a gain of 9,016 m
2
. The observed volume increase has been estimated in 96,350 m
3
(+97 %), which corresponds to a positive mass balance of 3.89 m w.e.. This quite unusual finding in the present global warming behaviour is mainly due to the above-average winter accumulation (c
w
) in the considered period. Moreover, the winter season 2008–2009 represented an exceptional event with a c
w
equal to 13.38 m, the highest of the available record. Thanks to density estimation, we infer the total mass of the CEG at the time of the geophysical surveys, comparing such results with the ones obtained with available empirical equations, observing an important mass gain in the 5 years considered.
Devonian mafic magmatism of the northern East European Craton (EEC) has been variously linked to Uralian subduction, post-orogenic extension associated with Caledonian collision, and rifting. New ...elemental and isotopic analyses of Devonian basalts from the Timan Range and Kanin Peninsula, Russia, in the northern EEC constrain magma genesis, mantle source(s) and the tectonic process(es) associated with this Devonian volcanism to a rift-related context. Two compositional groups of low-K2O tholeiitic basalts are recognized. On the basis of Th concentrations, LREE concentrations, and (LREE/HREE)N, the data suggest two distinct magma batches. Incompatible trace elements ratios (e.g., Th/Yb, Nb/Th, Nb/La) together with Nd and Pb isotopes indicate involvement of an NMORB to EMORB ‘transitional’ mantle component mixed with variable amounts of a continental component. The magmas were derived from a source that developed high (U,Th)/Pb, U/Th and Sm/Nd over time. The geochemistry of Timan–Kanin basalts supports the hypothesis that the genesis of Devonian basaltic magmatism in the region resulted from local melting of transitional mantle and lower crust during rifting of a mainly non-volcanic continental rifted margin.
•Devonian low-K tholeiitic basalts occur in the northern East European Craton (EEC).•Th, LREE, and (LREE/HREE)N and isotopic ratios suggest two distinct magma batches.•Basalt genesis involved transitional mantle and contamination with old lower crust.•This occurred during rifting of a mainly non-volcanic continental rifted margin.
Amaç: Bu çalışmanı amacı gömülü kanin dişler arsında transmigrant kanin insidansının belirlenmesi ve transmigrant kanin dişlerinin değerlendirilmesidir. Gereç ve Yöntemler: Bu çalışmada Ankara ...Üniversitesi Ağız, Diş ve Çene Cerrahisi Anabilim Dalında 2012 yılında tarafımızdan gömülü kanin diş sebebiyle muayene ve tedavi edilmiş 121 hastaya ait (36 erkek, 85 kadın) klinik ve panoramik radyografi görüntüleri retrospektif olarak analiz edilmiş ve transmigrant kanin içeren vakalar yaş, cinsiyet, pozisyon, lokalizasyon,tedavi protokolleri ve sınıflama açısından istatistiksel olarak değerlendirilmiş ve görülme sıklığı belirlenmiştir. Bulgular: 4 hasta veri eksikliği nedeniyle çalışma dışı bırakılmıştır. 117 hastada 146 kanin dişinin içerisinde 3 ü üst çene (1 erkek, 2 kadın) 10’u alt çene(2 erkek, 8 kadın) de olmak üzere 13 (3 erkek,10 kadın) tek taraflı transmigrant kanin bulunmuştur. Ortalama yaş 32.38 olarak tespit edilmiştir. Alt çenede görülenlerde Sınıf 1(%50) en sık rastlanılan pozisyon olmuştur. 8 dişin tedavisi çekim ile yapılırken 5 dişin tedavisinde takipyapılması uygun görülmüştür.. Gömülü kaninler arasında transmigrasyon görülme insidansı %8.90 olup bu oran üst çenede %2.52 olarak bulunmuşken alt çenede %37.03 olarak belirlenmiştir.Sonuçlar: Transmigrasyon görülme insidansı alt çenede üst çeneye oranla istatistiksel olarak anlamlı derecede yüksektir (p<0.05). Diş hekimlerinin yalnızca klinik muayene ile tespit edilemeyecek transmigrasyon ile karşılaşabileceklerinin farkında olmaları ve radyografik muayenelerini ihmal etmemeleri gerekmektedir.Anahtar Kelimeler: transmigrasyon; gömülü kanin; alt çene; üst çene
The region of the junction and interaction between the East European Craton (EEC) and the West Arctic Craton (WAC) is regarded as a complexly built zone or assembly of both the volumetric and ...dividing linear tectonic elements: the Trollfjord–Rybachi–Kanin (TRK) Lineament, the pericratonic subsidence zone of the EEC, the Karpinskii Lineament, the Murmansk Block of the Fennoscandian (Baltic) Shield, and the Kolmozero–Voronya Zone, which are briefly characterized in this paper. Evidences of thrusting have been established not only in the TRK Suture Zone and on the Rybachi Peninsula, which represent a fragment of the Timanides fold–thrust belt, but also to the southwest, in the Upper Riphean and Vendian terrigenous sequences making up the Sredni Peninsula and related to the pericratonic trough of the VEC. Two phases of fold–thrust deformations with elements of left-lateral strike-slip offset pertaining to the activity and evolution of the lineament suture dividing the Sredni and Rybachi peninsulas have been recorded. The variously oriented fault–fold systems within this fault zone are evidence for multistage deformation and can be explained by an at least twostage change in the kinematics that control displacement along the fault. The disintegrated granitic massifs of the Archean crystalline basement tectonically squeezed out in the upper crust as protrusions are localized within TRK Fault Zone. Plagiogranitic bodies, which underwent superposed fault-fold deformations of both kinematic stages, are an evidence of the vigorous tectonic event that predated folding and two-stage strike-slip displacement along the TRK Fault—by thrusting of Riphean sequences from north to south toward the Archean craton. The nappe–thrust regional structure was formed at this stage; elements of it have been recognized in the Sredni, Rybachi, and Kanin peninsulas. The main stages of tectonic evolution in the junction zone between the EEC and the WAP have been revealed and substantiated.
This article focuses on the designs for and staging of the play The Diary of Anne Frank (1955), and considers the ways in which the sets of the Secret Annex both documented and transformed the hiding ...place to convey its isolation and confinement to the audience. It also explores how the decoration and furnishings of Anne's recreated bedroom reflected broader postwar-era cultural messages about coming of age, adolescent girls, and their material surroundings during that period. Published in English in 1952, Anne Frank: The Diary of a Young Girl chronicled the more than two years that Anne, her family, and four other Jews spent in hiding during World War II in an annex in Amsterdam during the Nazi occupation of the Netherlands. The success of the English-language book led to a theatrical adaptation by Frances Goodrich and Albert Hackett. Directed by Garson Kanin and with sets by Boris Aronson, the play opened on Broadway in 1955. Rooted in documentary-like details and based in large part upon a real space, the sets for The Diary of Anne Frank nevertheless reflect aesthetic choices firmly situated in postwar US discourse.
Permafrost is an integral part of the environmental conditions that frame indigenous peoples’ livelihoods in many parts of the circumpolar region. On the basis of their long-term ethnographic field ...researches, the authors describe the various ways in which permafrost dynamics influence the lives and economic activities of two groups of reindeer-herding nomads in North-Eastern Europe and Western Siberia: Komi and Nenets. Permafrost affects the herders directly, for the herders have to take into account the probability of thermokarst while choosing the campsite and performing certain herding procedures. It also affects the herders indirectly, through its influence on landscape and vegetation and thus on reindeer behavior. More rapid permafrost degradation will have a range of adverse effects on reindeer herding.
Two Genetic Types of Pseudotachylytes Morozov, Yu. A.; Matveev, M. A.; Smulskaya, A. I. ...
Doklady earth sciences,
02/2019, Letnik:
484, Številka:
2
Journal Article
Recenzirano
The study of two varieties of pseudotachylytes (PST) in granitoids of the Riphean complex on the Barents Sea coast of the Kola Peninsula (Rybachii and Srednii peninsulas) and in metapsammite of the ...Paleoproterozoic complex in the Northern Ladoga region by a few independent analytical methods has made it possible to establish that they belong to different genetic forms, such as mechanically crushed rocks and melting products, respectively. As for the melting differences, we have given a detailed description of the mineral and material transformations of the original rock into the PST glass matrix and obtained evidence for the initial melting out of the micaceous eutectics with its subsequent shift to the granite type. The conclusion has been made on the most likely formation of molten PST due to frictional rock melting under rapid rise of its blocks from a depth of 12–15 km to the crustal surface (less than 3 km) along the faults of presumably seismogenic nature. It is suggested that crushing and frictional melting can be complementary, rather than mutually exclusive processes, and the formation of molten PST is commonly preceded by the mechanical rock crushing stage.
PDF
