scholarly journals Calcareous nannoplankton in Cretaceous and Cenozoic deposits of the north-west part of the Crimean continental slope

Author(s):  
L.M. Matlaj ◽  
Author(s):  
Tatiana Vasilievna Pomogaeva ◽  
Aliya Ahmetovna Aseinova ◽  
Yuriy Aleksandrovich Paritskiy ◽  
Vjacheslav Petrovich Razinkov

The article presents annual statistical data of the Caspian Research Institute of Fishery. There has been kept track of the long term dynamics of the stocks of three species of Caspian sprat (anchovy, big-eyed kilka, sprat) and investigated a process of substituting a food item of sprats Eurytemora grimmi to a small-celled copepod species Acartia tonsa Dana. According to the research results, there has been determined growth potential of stocks of each species. Ctenophoran-Mnemiopsis has an adverse effect on sprat population by eating fish eggs and larvae. Ctenophoram - Mnemiopsis is a nutritional competitor to the full-grown fishes. The article gives recommendations on reclamation of stocks of the most perspective species - common sprat, whose biological characteristics helped not to suffer during Ctenophoram outburst and to increase its population during change of the main food item. Hydroacoustic survey data prove the intensive growth of common sprat biomass in the north-west part of the Middle Caspian. According to the results of the research it may be concluded that to realize the volumes of recommended sprat catch it is necessary to organize the marine fishery of common sprat at the Russian Middle Caspian shelf.


2010 ◽  
Vol 75 (5) ◽  
pp. 703-715 ◽  
Author(s):  
Snezana Nenadovic ◽  
Ljiljana Matovic ◽  
Misko Milanovic ◽  
Sava Janicevic ◽  
Jasmina Grbovic-Novakovic ◽  
...  

In this paper, the impacts of some meteorological parameters on the SO2 concentrations in the City of Obrenovac are presented. The City of Obrenovac is located in the north-west part of Serbia on the banks of the River Sava. The observed source emission, the power plants TENT A and TENT B are situated on the bank of the Sava River in the vicinity of Obrenovac. During the period from January to November 2006, the concentrations of sulfur dioxide in the air at 4 monitoring sites in Obrenovac were measured. It was noticed that the maximal measured daily concentrations of sulfur dioxide ranged from 1 ?g/m3 (16th November, 2006) to 98 ?g/m3 (29th January 2006) and lie under the maximal allowed concentration value according to the Serbian Law on Environmental Protection. The measured sulfur dioxide concentrations mostly showed characteristics usual for a daily acidification sulfur dioxide cycle, excluding the specificities influenced by the measuring site itself. Sulfur dioxide transport was recorded at increased wind speeds, primarily from the southeast direction. Based on the impact of meteorological parameters on the sulfur dioxide concentration, a validation of the monitoring sites was also performed from the aspect of their representivity.


2010 ◽  
Vol 61 (1) ◽  
pp. 55-69 ◽  
Author(s):  
Boris Vrbanac ◽  
Josipa Velić ◽  
Tomislav Malvić

Sedimentation of deep-water turbidites in the SW part of the Pannonian BasinThe Sava Depression and the Bjelovar Subdepression belong to the SW margin of the Pannonian Basin System, which was part of the Central Paratethys during the Pannonian period. Upper Pannonian deposits of the Ivanic-Grad Formation in the Sava Depression include several lithostratigraphic members such as Iva and Okoli Sandstone Member or their lateral equivalents, the Zagreb Member and Lipovac Marlstone Member. Their total thickness in the deepest part of the Sava Depression reaches up to 800 meters, while it is 100-200 meters in the margins of the depression. Deposits in the depression are composed of 4 facies. In the period of turbiditic activities these facies are primarily sedimented as different sandstone bodies. In the Bjelovar Subdepression, two lithostratigraphic members (lateral equivalent) were analysed, the Zagreb Member and Okoli Sandstone Member. The thickness of the Bjelovar Subdepression ranges from 50 meters along the S and SE margins to more than 350 meters along the E margin. Generally, detritus in the north-west part of the analysed area originated from a single source, the Eastern Alps, as demonstrated by sedimentological and physical properties, the geometry of the sandstone body and the fossil content. This clastic material was found to be dispersed throughout the elongated and relatively narrow Sava Depression and in the smaller Bjelovar Subdepression. Sedimentation primarily occurred in up to 200 meters water depth and was strongly influenced by the sub-aqueous paleorelief, which determined the direction of the flow of turbidity currents and sandstone body geometries. The main stream with medium- and fine-grained material was separated by two independent turbiditic flows from N-NW to the SE-E. Variability in the thickness of sandstone bodies is the result of differences in subsidence and cycles of progradation and retrogradation of turbidite fans.


1955 ◽  
Vol 35 (3-4) ◽  
pp. 187-198 ◽  
Author(s):  
Paul Ashbee

Halangy Down (fig. 1) is the lower precipitous slope of the decline from Telegraph Hill (Ordnance Survey B.M. 166. 3 ft.) to the sea at Halangy Porth and Point. Halangy Down and the earlier chambered tomb upon the crest are often referred to locally as ‘Bants Carn’. The true ‘Bants Carn’ is a considerable rock outcrop dominating Halangy Point. This escarpment faces Crow Sound, which separates the north-west part of St. Mary's from the neighbouring island of Tresco. The hill-side is sheltered by the mass of Telegraph Hill from inclement weather from the north-east and east, but is fully exposed to the south-west and west.The existence of an ancient village site here has long been known in the islands. At the close of the last century, the late Alexander Gibson cleared away the underbrush from one of the more prominent huts and made a photographic record of its construction. Shortly after, the late G. Bonsor, of Mairena del Alcor, near Seville, in addition to excavating the chambered tomb, noted a considerable midden together with traces, of prehistoric occupation exposed in the cliffs of Halangy Porth just below the village site. Dr. H. O'Neill Hencken noted Bonsor's description of the midden, and, as nothing was known at the time of the material culture of the ‘village’, he associated the two.


2015 ◽  
Vol 37 ◽  
pp. 407-418
Author(s):  
Anna Żebrowska

Polishness in Komarowszczyzna and its surroundings: history and the present dayThe direct reason for writing this article was a reflection that came to my mind during the fieldwork in July/August 2012, which took place in the north-west part of Belarus, in Miadziolski region of Mińsk district. The issue of Polishness in the researched area has been presented from two perspectives: historical and modern. The former predicts appealing to the memory of pre-war generation, while the latter would entail appealing to the current situation of Polishness in Komarowszczyzna and neighbouring villages, which is shaped by the middle generation (born after WWII) and the young people (born in 1970–1990). A comparative analysis of statements of representatives of these three generations has shown that the attitude towards Polishness has changed significantly. From the perspective of the pre-war and partly of the post-war generation, Polishness (i.e. the sense of Polishness) is on the decline. Nevertheless, it is impossible to state that young people renounce their roots or oppose Polishness. They only draw attention to the need of different actions, searching for new possibilities of ‘protecting’ Polishness. Польскость в Комаровщине и её окрестностях: история и современностьНепосредственным поводом для написания данной статьи стал материал, собранный во время полевых исследований в июле/августе 2012 года на Мядельщине – в деревне Комарово и нескольких других близлежащих деревнях (Януковичи, Борисы, Ворошилки и Куркули). Основной целью статьи является представление отношения жителей вышеперечисленных деревень к польскости. Проблематика польскости рассматривается в двух аспектах: историческом и современном. Исторический подход предполагает обращение к памяти довоенного поколения, современный – к настоящей ситуации по отношению к польскости, которую предопределяет среднее поколение (рождённое после второй мировой войны) и молодые люди (рождённые в 70–90 гг.). Сравнительный анализ высказываний представителей трёх поколений указывает на изменениe подхода к вопросу польскости. С точки зрения старшего и частично среднего поколений, налицо исчезновение польскости. Однако нельзя сказать, что молодые люди отказываются от своих польских корней; они лишь обращают внимание на потребность в новых возможностях и решениях, позволяющих сохранить польскость.


1970 ◽  
Vol 9 (57) ◽  
pp. 325-336 ◽  
Author(s):  
R.M. Koerner

Methods used in measuring the mass balance of the Devon Island ice cap are described. The use of dyes and melt trays is recommended in the superimposed-ice and firn zones of sub-polar glaciers. The north-west part of the ice cap was studied in most detail and has had a slightly negative net balance for the period 1961-66. An inverse relationship between mean net balance(bn)and elevation of the equilibrium line in the north-west part of the ice cap indicates that the mean net balance there would be zero with an equilibrium line at 920 m (±80 m) elevation. Accumulation on the ice cap is greatest in the south-east but the measurements suggest that the mean net balance there is similar to the mean net balance on the rest of the ice cap. It is concluded that the present accumulation pattern must have existed for several hundreds, and possibly thousands of years. A study of firn stratigraphy and of variations in the elevation of the firn and equilibrium lines indicates that between 1961 and 1966 only 1962 had a more negative mean net balance than the average value for the period 1934-60. During the same 26 year period the net balance at 1 787 m elevation has varied, but summer conditions do not appear to have changed significantly.


Palaeobotany ◽  
2012 ◽  
Vol 3 ◽  
pp. 23-31
Author(s):  
A. V. Danilova

Results of the palynological study of the Lower-Middle Permian terrigenous deposits of the NorthWest part of the Timan-Pechora petroleum province (from the wells 1-Narjan-Mar, 140-Kolguev, Peschanoozorskaya 1/4, Severo-Zapadnaya 202) are presented. Three miospore assemblages are established. They characterize the main stages of the palynofl ora in the Ufa and Kazan time and allow to reconstruct paleoclimatic conditions in this territory.


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