scholarly journals Mesozoic-Cenozoic climate and the geothermal regime of the oil source Kiterbyutskaya suite of the Arctic region of Western Siberia

Georesursy ◽  
2018 ◽  
Vol 20 (4) ◽  
pp. 386-395 ◽  
Author(s):  
V. Isaev ◽  
A. Iskorkina ◽  
G. Lobova ◽  
T. Luneva ◽  
E. Osipova ◽  
...  
Keyword(s):  
Heat Flow ◽  
A Priori ◽  
Arctic Region ◽  
Lower Jurassic ◽  
The Arctic ◽  
Yamal Peninsula ◽  
Deep Well ◽  
History Of ◽  
Priori Information ◽  
Oil Source

Using the example of paleotemperature modeling of the Kiterbyutskaya suite of the Mesozoic-Cenozoic section, opened by a deep well at the Bovanenkovskoye oil – gas condensate field (Yamal Peninsula), the influence of paleoclimate factors on the thermal history of the Lower Jurassic oil source deposits, the duration of the main phase of petroleum formation and the value of the paleothermometric maximum and oil generation density. The original computer methodology is described, which takes into account the parameters of the tectonic and sedimentation history, as well as the history of the thermophysical properties of the sedimentary formation, including permafrost and glaciers, and not requiring a priori information about the values and nature of the deep heat flow is given. The features of the model parametrization are shown. The reliability of the results is confidently controlled by the geophysical criterion of the “discrepancy”, comparison with experimental data on the heat flow, and consistency with the drilling data. The presentation is based on the works of the Tomsk School of Geothermics, carried out as part of the development of a methodological base of geothermics as a geophysical oil prospecting method.

scholarly journals Heat flow and presence of oil and gas (the Yamal peninsula, Tomsk region)

Georesursy ◽  
2019 ◽  
Vol 21 (3) ◽  
pp. 125-135
Author(s):  
Valery I. Isaev ◽  
Galina A. Lobova ◽  
Alexander N. Fomin ◽  
Valery I. Bulatov ◽  
Stanislav G. Kuzmenkov ◽  
...  
Keyword(s):  
Heat Flow ◽  
Western Siberia ◽  
Oil And Gas ◽  
Sedimentary Cover ◽  
The Arctic ◽  
Yamal Peninsula ◽  
Flow Density ◽  
Positive Anomaly ◽  
Tomsk Region ◽  
History Of

The possibilities of Geothermy as a geophysical method are studied to solve forecast and prospecting problems of Petroleum Geology of the Arctic regions and the Paleozoic of Western Siberia. Deep heat flow of Yamal fields, whose oil and gas potential is associated with the Jurassic-Cretaceous formations, and the fields of Tomsk Region, whose geological section contents deposits in the Paleozoic, is studied. The method of paleotemperature modeling was used to calculate the heat flow density from the base of a sedimentary section (by solving the inverse problem of Geothermy). The schematization and mapping of the heat flow were performed, taking into account experimental determinations of the parameter. Besides, the correlation of heat flow features with the localization of deposits was revealed. The conceptual and factual basis of research includes the tectonosedimentary history of sedimentary cover, the Mesozoic-Cenozoic climatic temperature course and the history of cryogenic processes, as well as lithologic and stratigraphic description of the section, results of well testing, thermometry and vitrinite reflectivity data of 20 deep wells of Yamal and 37 wells of Ostanino group of fields of Tomsk region. It was stated that 80 % of known Yamal deposits correlate with anomalous features of the heat flow. Bovanenkovskoe and Arkticheskoe fields are located in positive anomaly zones. 75 % of fields of Ostanino group relate to anomalous features of the heat flow. It is shown that the fields, which are characterized by existence of commercial deposits in the Paleozoic, are associated with the bright gradient zone of the heat flow. The forecast of commercial inflows in the Paleozoic for Pindzhinskoe, Mirnoe and Rybalnoe fields is given. The correlation between the intensity of naftidogenesis and the lateral inhomogeneity of the deep heat flow is characterized as a probable fundamental pattern for Western Siberia.

scholarly journals Off-the-Grid Life of Arctic Nomads: Social Generating of Electricity in the Northern Yamal

2019 ◽  
pp. 1356-1373 ◽  
Author(s):  
Dmitry V. Arzyutov
Keyword(s):  
Social Life ◽  
Field Data ◽  
The Arctic ◽  
Yamal Peninsula ◽  
Historical Documents ◽  
Cultural Meanings ◽  
History Of ◽  
Ethnographic Analysis ◽  
The Yamal Peninsula

This article deals with the ethnographic analysis of the history and social life of electricity among Nenets in the Yamal Peninsula. Based on historical documents and field data the author reconstructs a history of the electrification of the northern part of the peninsula. This work also includes the reflections on social and cultural meanings of electricity among Nenets in and out the tundra. Through these historical and current dynamics, the author suggests analysing the life of electricity in off-the-grid settings through the lens of transnational technological entanglements in the Arctic

Arctic Connectivity for Sustainable Development

2019 ◽  
pp. 24-54 ◽  
Author(s):  
Vasilii Erokhin
Keyword(s):  
Sustainable Development ◽  
Energy Security ◽  
Arctic Region ◽  
Energy Resources ◽  
The Arctic ◽  
Northern Europe ◽  
International Regulations ◽  
The Usa ◽  
History Of ◽  
Transportation Routes

The Arctic possesses about one-quarter of the world's untapped energy resources and abundant deposits of minerals. The region has always been in the focus of geopolitical interests of the USA, Russia, countries of Northern Europe, and Canada. However, with an opening of the previously ice-jammed waterways, new potential sites with vast resources have been identified and explored. Diversified transportation routes are of paramount importance to the economic and energy security of energy importing countries, particularly non-Arctic ones. As the Arctic becomes a focus of interest of many regional and non-regional actors, it is crucial to identify the dangers such a boom may bring. This chapter reviews the history of the Arctic policies of major actors in the region, overviews the contemporary approaches to the development of the Arctic, and discusses how varying interests and policies can be translated into the effective international regulations for the benefit of the entire Arctic region, its people, environment, and sustainable development.

Speleothem record of enhanced hydroclimate during MIS15a in Northeast Greenland

2020 ◽  
Author(s):  
Gina Moseley ◽  
R. Lawrence Edwards ◽  
Christoph Spötl ◽  
Hai Cheng
Keyword(s):  
Arctic Region ◽  
Arctic Sea Ice ◽  
The Arctic ◽  
Climate History ◽  
Sea Levels ◽  
Temperature And Precipitation ◽  
Arctic Sea ◽  
History Of ◽  
Forcing Mechanisms ◽  
Essential Knowledge

<p>The Arctic region is predicted to be one of the most sensitive areas of the world to future anthropogenically-forced climate change, the consequences of which will affect vast numbers of people worldwide, for instance through changes to mid-latitude weather systems and rising eustatic sea levels. Recent changes in temperature and precipitation, and those projected for the future, indicate that some of the greatest changes will occur in Northeast Greenland. Essential knowledge on the climate history of this region, which can be used to validate models and understand forcing mechanisms and teleconnections, is however absent. Here, we present a speleothem palaeoclimate record for Northeast Greenland (80 °N) that formed during Marine Isotopes Stage 15a  between 588 ka to 537 ka. The record indicates that at that time, Northeast Greenland was warmer and wetter than at present associated with a reduction in Arctic sea ice, thawing of permafrost in eastern Siberia (55 °N and 60 °N), and elevated warm conditions at Lake El’gygytgyn (67.5 °N), Russia.</p>

scholarly journals Paleotectonic and paleogeographic history of the Arctic region

2021 ◽  
Vol 57 ◽  
pp. 007-039
Author(s):  
Ron Blakey
Keyword(s):  
Arctic Region ◽  
The Arctic ◽  
First Episode ◽  
Second Phase ◽  
Geologic History ◽  
Northern Margin ◽  
Middle Paleozoic ◽  
History Of ◽  
Cordilleran Margin ◽  
The Arctic Region

Paleogeographic maps represent the ultimate synthesis of complex and extensive geologic data and express pictorially the hypothetical landscape of some region during a given time-slice of deep geologic time. Such maps, presented as paired paleogeographic and paleotectonic reconstructions, have been developed to portray the geologic history of the greater Arctic region over the past 400 million years. Collectively they depict four major episodes in the development of the Arctic region. The first episode witnessed early and middle Paleozoic terrane assembly and accretion during the Caledonian and Ellesmerian orogenies, which brought together many pieces of the Arctic collage along the northern margin of Laurussia. During the second phase, the assembly of Pangea in the late Paleozoic joined Siberia to Laurussia, an entity that became Laurasia during the subsequent break-up of Pangea. Then, Mesozoic subduction and terrane accretion constructed the Cordilleran margin and opened the Canada Basin. Finally, Cenozoic North Atlantic sea-floor spreading fully opened the Arctic Ocean.

scholarly journals STRAIGHT TO THE NORTH: ARCTIC EXPLORATION IN ARTISTS’ WORKS.

2021 ◽  
Vol 13 (1/2021) ◽  
pp. 7-22
Author(s):  
Yu.I. Maksimov ◽  
◽  
A.B. Mambetova ◽  
A.I. Krivichev ◽  
◽  
...  
Keyword(s):  
Arctic Region ◽  
Art Museum ◽  
The Arctic ◽  
Graphic Arts ◽  
The North ◽  
History Of ◽  
Arctic Exploration ◽  
Art Community ◽  
Extreme North ◽  
Creative Team

The article provides an overview on the history of the Kola Arctic region and the Arctic artistic exploration based on the “Straight to the North” temporary exhibition in Murmansk Regional Art Museum, 2019. Pieces of icon painting, decorative and applied arts, books, household items, painting and graphic arts and collection of the Kola Peninsula minerals were exhibited there. Some art works are described in details: paintings of Russian artists of the late 19th and early 20th centuries and Soviet artists, including painters from Murmansk and members of “The Arctic” creative team in 1978–1985. The authors analysed, how social and economic development of the Kola Arctic region influenced new art styles and directions: from plein air painting under the Extreme North conditions to industrial landscapes and creation of an art community. The authors dedicate the article to the memory of Honored Artist of the Russian Federation, the leader of “The Arctic” creative team Arvi Ivanovich Huttunen (31.08.1922–27.08.2020).

Climatic variations in Arctic region in Cretaceous and Cenozoic

2019 ◽  
pp. 30-37
Author(s):  
R. R. Gabdullin ◽  
N. V. Badulina ◽  
Yu. I. Rostovtseva ◽  
A. V. Ivanov
Keyword(s):  
Low Temperatures ◽  
Marine Invertebrates ◽  
Membrane Lipids ◽  
Arctic Region ◽  
The Arctic ◽  
Climatic Variations ◽  
History Of ◽  
Climatic History ◽  
Dinosaur Teeth ◽  
The Arctic Region

As a result of the analysis of published sources, a database on paleotempertures for the Arctic and Subarctic regions was collected on the skeletons of marine invertebrates, marine palynomorphs, dinosaur teeth, analysis of the ability of reptiles to lay eggs at low temperatures, continental flora (CLAMP-analysis), on the presence of coal layers in continental sediments within Arctic region, on membrane lipids of glycerol and dialkylglycerol tetraether in marine sediments and glendonite. Based on it, a paleotemperature curve was constructed for the Arctic region for the Cretaceous-Cenozoic span of geological history, which has common trends with the global paleotemperature curve [Scotise, 2015] (with the exception of cooling in the Tortonian age due to local factors). In the climatic history of the Arctic 16 climatic cycles have been established, comprising 16 climatic minima (including the glaciation in the Northern Hemisphere) and 15 climatic maxima.

Measurement capabilities of strato-mesospheric winds in the Arctic region

2020 ◽  
Author(s):  
Rita Edit Kajtár ◽  
Mathias Milz ◽  
Uwe Raffalski ◽  
Jana Mendrok
Keyword(s):  
Spectral Range ◽  
A Priori ◽  
Arctic Region ◽  
The Arctic ◽  
Horizontal Wind ◽  
A Priori Knowledge ◽  
Global Circulation Models ◽  
Wind Profiles ◽  
The Arctic Region ◽  
Priori Knowledge

<p>There is a need for inferring mid-stratosphere to mid-mesosphere wind profiles between approximately 25 and 75 km altitude as a consequence of the relatively poor characterization of the complex atmospheric dynamics at these altitudes by the existing monitoring techniques. A better knowledge of the wind field could help improve the quality of global circulation models for this region of the atmosphere. Our goal is to measure strato-mesospheric horizontal wind profiles over the Arctic region. To this objective, we are using data from continuous measurements recorded for ozone chemistry monitoring purposes that have been ongoing since 2002 and from dedicated wind measurements recorded since 2014. An accurate interpretation of the wind patterns could give us an insight into past and present wind dynamics in the Arctic. For the measurements, we are using the ground-based millimeter-wave radiometer KIMRA [Raffalski et al., 2002] with a spectral range between 195-233GHz, situated at the Swedish Institute of Space Physics, in Kiruna, Sweden. Within KIMRA’s spectral range, the thermal emission spectrum of a strong ozone line at 231.3GHz has been used for ozone monitoring, and it might also be the most suitable to use for inferring wind speeds. It has both a strong contribution compared to other, secondary gases identified in this frequency region, and it has an enhanced spectral signature compared to the baseline effects induced by the radiometer itself. By determining the difference between the observed (wind-affected) and the simulated reference spectra (without wind), we can characterize the Doppler shift of the line with the help of our retrieval system and subsequently infer the speeds of the winds that induced the shift. The wind profile retrievals are performed with the Qpack2 package [Eriksson et al., 2005] for inverting the set of observations using an optimal estimation retrieval approach (OEM). The OEM provides the best solution given the measurements and their errors and the a priori knowledge and its errors. The a priori knowledge that we consider has been estimated from ERA5 re-analysis data downloaded from the Copernicus Climate Data Store. In connection with Qpack2, we use the Atmospheric Radiative Transfer Simulator (ARTS-2) [Bühler et al., 2018] as a forward model. We test the retrieval capabilities of strato-mesospheric horizontal wind profiles and assess if the retrieval can be performed with sufficient accuracy. In addition, we intend to evaluate the technical capabilities of KIMRA regarding possible improvements to the instrument’s performance. Besides the implementation of new hardware, we will analyze how adjusting certain parameters that currently limit its spectral resolution affects the sensitivity of the measurements. Furthermore, we will aim to decrease the intrinsic noise of the radiometer and increase its stability over time.</p>

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