2,986 research outputs found
Sedimentation and subsidence history of the Lomonosov Ridge
No full textDuring the first scientific ocean drilling expedition to the Arctic Ocean (Arctic Coring Expedition [ACEX]; Integrated Ocean Drilling Program Expedition 302), four sites were drilled and cored atop the central part of the Lomonosov Ridge in the Arctic Ocean at ~88°N, 140°E (see Fig. F18 in the "Sites M0001–M0004" chapter). The ridge was rifted from the Eurasian continental margin at ~57 Ma (Fig. F1) (Jokat et al., 1992, 1995). Since the rifting event and the concurrent tilting and erosion of this sliver of the outer continental margin, the Lomonosov Ridge subsided while hemipelagic and pelagic sediments were deposited above the angular rifting unconformity (see Fig. F7A in the "Sites M0001–M0004" chapter).The sections recovered from the four sites drilled during Expedition 302 can be correlated using their seismic signature, physical properties (porosity, magnetic susceptibility, resistivity, and P-wave velocity), chemostratigraphy (ammonia content of pore waters), lithostratigraphy, and biostratigraphy. The lithostratigraphy of the composite section combined with biostratigraphy provides an insight into the complex history of deposition, erosion, and preservation of the biogenic fraction. Eventually, the ridge subsided to its present water depth as it drifted from the Eurasian margin. In this chapter, we compare a simple model of subsidence history with the sedimentary record recovered from atop the ridge
Miocene deep-water agglutinated foraminifera from the Lomonosov Ridge and the opening of the Fram Strait
No full textDeep-water agglutinated Foraminifera (DWAF) were recovered from Miocene to Pliocene sediments in 103 samples
from IODP Hole M0002A on the Lomonosov Ridge. The First Occurrence of DWAF in Hole M0002A is observed just above the color change corresponding to the boundary between Lithological Subunits 1/4 and 1/5 in Core section –44X-1. The foraminiferal record of Hole M0002A consists entirely of agglutinated benthic species, largely sparse assemblages containing Cyclammina pusilla and Alveolophragmium polarensis. The faunal succession in Hole M0002A is subdivided into three assemblages based on the stratigraphic
ranges of characteristic taxa: (1) a relatively diverse assemblage at the base of Lithological Subunit 1/4 (Cores 44X-1 to –38X), with abundant agglutinated foraminifera including Reticulophragmium pusillum and Ammolagena clavata, indicating connections with the
North Atlantic. This assemblage displays the best preservation, which is here attributed to higher concentrations of dissolved silica in pore waters (2) A less diverse assemblage characterized by Alveolophragmium polarensis with Adercotryma agterbergi, in the lower
part of Lithological Subunit 1/3 (Cores –38X to –35X); (3) a sparse residual assemblage within Lithological Subunit 1/3 with Rhabdammina spp., A. polarensis and R. pusillum indicating poor preservation of organically-cemented DWAF in Cores –34X to –10X.
A comparison of the DWAF assemblages from the Lomonosov Ridge with previously studied Miocene assemblages from ODP
Hole 909C in the Fram Strait, Norwegian-Greenland Sea (Kaminski et al. 2005), suggests that the inflow of Atlantic intermediate water into the Arctic Ocean began prior to 17.5 Ma
Lomonosov Moscow State University: The Major Centre for Russian Research and Education Into Tourism and Recreation
No full textThe author discusses the tourism geography research which has been undertaken at Lomonosov State University in Moscow over many years. This academic institution is one of the most famous research centres dealing with spatial recreation systems. At first (from the 1960’s), research was mainly on geographical and technical issues, but the research area was gradually enlarged for example to include social and humanistic elements. The best known research has been done on ‘spatial recreation systems’, ‘polarized landscapes’, the ‘recreational economy spatial complex’, and the ‘environmental model of a spatial system
Expedition 302 geophysics: integrating past data with new results
No full textIn preparation for IODP Expedition 302, Arctic Coring Expedition (ACEX), a site survey database comprising geophysical and geological data from the Lomonosov Ridge was compiled. The accumulated database includes data collected from ice islands, icebreakers, and submarines from 1961 to 2001. In addition, seismic reflection profiles were collected during Expedition 302 that complement the existing seismic reflection data and facilitate integration between the acoustic stratigraphy and the Expedition 302 drill cores. An overview of these data is presented in this chapter.It is well recognized that collecting geophysical data in ice-covered seas, in particular the Arctic Ocean, is a challenging endeavor. This is because much of the Arctic Ocean is continuously covered with ice thicknesses that vary from 1 to 6 m. Over the continental shelves, sea ice can be absent during summer months, but it is present year-round in the central basins. This ice cover is the most dominant feature of the Arctic Ocean environment. It circulates in the ocean basin in two main circulation patterns: the Transpolar Drift and the Beaufort Gyre (see the "Expedition 302 summary" chapter; Rudels et al., 1996).Expedition 302 sites are located within the less severe of these two ice circulation systems, the Transpolar Drift, which primarily moves sea ice from the shelves where it is formed (the Laptev and East Siberian Seas) across the basin and exits through the Fram Strait. During late summer, concentrations of Arctic sea ice can be <100% (10/10 ice cover), making it possible for icebreakers to operate. Average ice concentrations in the central Arctic Ocean during summer months can locally vary from partially open water (6/10) to completely ice covered (10/10). This sea-ice cover can move at speeds up to 0.5 kt.Early Arctic Ocean geophysical exploration was performed from ice-drift stations (Weber and Roots, 1990). However, the tracks from these drifting ice stations were controlled "by the whims of nature" (Jackson et al., 1990), preventing detailed, systematic surveys of predetermined target areas. These ice-drift stations were set up on stable icebergs that were trapped in sea ice and moved generally with the large drift patterns, but locally they were erratic, so preselected locations could not be surveyed. In the late 1980s, single icebreakers began to be used for oceanographic survey work in the Arctic Ocean. Between 1991 and 2001, four scientific icebreaker expeditions to the Lomonosov Ridge took place. These cruises all experienced local sea-ice conditions varying between 8/10 and 10/10. During these expeditions, towed geophysical equipment was occasionally damaged or lost, either because of a rapidly closing wake caused by local ice pressure or because ice had cut the air gun array.Conventionally powered icebreakers reached as far as the North Pole for the first time during the 1991 Expedition (Andersen and Carlsonn, 1992; Fütterer, 1992). Geophysical results from this expedition collected two important reflection profiles, AWI-91090 and AWI-91091, that crossed the Lomonosov Ridge between 87° and 88°N. These profiles imaged a ~450 m thick, well-stratified and apparently undisturbed drape of sediments overlying a prominent acoustic unconformity (Jokat et al., 1992) that spawned the idea to conduct a paleoceanographic drilling expedition to this Ridge.The use of US Navy nuclear submarines for geophysical mapping was implemented through the Science Ice Exercise program (SCICEX) (Newton, 2000). The development of the Seafloor Characterization and Mapping Pods (SCAMP), which hold a Chirp subbottom profiler, swath bathymetric profiler, and side scan sonar, was an essential part of the SCICEX program (Chayes et al., 1996). In 1999, the Lomonosov Ridge geophysical database was augmented with acoustic data acquired during the SCICEX program using the SCAMP system mounted on the US nuclear submarine USS Hawkbill (Edwards and Coakley, 2003)
UFFO/Lomonosov: The Payload for the Observation of Early Photons from Gamma Ray Bursts
No full textOpen Access. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.The payload of the UFFO (Ultra-Fast Flash Observatory)-pathfinder now onboard the Lomonosov spacecraft (hereafter UFFO/Lomonosov) is a dedicated instrument for the observation of GRBs. Its primary aim is to capture the rise phase of the optical light curve, one of the least known aspects of GRBs. Fast response measurements of the optical emission of GRB will be made by a Slewing Mirror Telescope (SMT), a key instrument of the payload, which will open a new frontier in transient studies by probing the early optical rise of GRBs with a response time in seconds for the first time. The SMT employs a rapidly slewing mirror to redirect the optical axis of the telescope to a GRB position prior determined by the UFFO Burst Alert Telescope (UBAT), the other onboard instrument, for the observation and imaging of X-rays. UFFO/Lomonosov was launched successfully from Vostochny, Russia on April 28, 2016, and will begin GRB observations after completion of functional checks of the Lomonosov spacecraft. The concept of early GRB photon measurements with UFFO was reported in 2012. In this article, we will report in detail the first mission, UFFO/Lomonosov, for the rapid response to GRB observations. © The Author(s) 2017.The Korean work is supported by the National Research Foundation grants funded by MSIP of Korea (Creative Research Initiatives program for RCMST, No. 2015R1A2A1A01006870, and No. 2015R1A2A1A15055344). The Russian work was partially supported by ROSCOSMOS grants and by RFFI grants No. 13-02-12175 and No. 15-35-21038 and acknowledges support from the Development Program of Lomonosov Moscow State University. AJCT acknowledges support from the Spanish MINECO Projects AYA 2009-14000-C03-01/ESP and AYA 2015-71718R (including EU/FEDER funds). The Taiwanese authors thank Taiwan's National Science Council Vanguard Program (100-2119-M-002-025) and Ministry of Science and Technology (MOST) funding (104-2811-M-002-160). SJ acknowledges the support from the Korea Basic Science Research Program through NRF-2014R1A6A3A03057484 and NRF-2015R1D1A4A01020961. MBK acknowledges the support from NRF-2015-GPF.Peer reviewe
V. BRUSOV’S ARTICLE ON M. LOMONOSOV. INTRODUCTORY REMARKS BY IRINA ATAJANYAN (YEREVAN)
No full textThe author publishes V. Brusov’s paper «On Lomonosov». According to V. Brusov, M. Lomonosov is «the father of the Russian literature». Significantly, V. Brusov overlooked M. Lomonosov’s poetry, with a view towards his works on prosody. The publication’s author concludes that V. Brusov intended to write a research paper on M. Lomonosov’s life and creativity
Personal involvement as a special style of Department of Psychology, Lomonosov Moscow State University
No full textThe author, being a former student of the Department of Psychology, Lomonosov Moscow State University, and now is teacher, professor, remembers those who created and maintained such traditions of the Department as depth of knowledge and coherence of ideas, methodological clarity and dialogue, holistic view of the issue and using problem solving in teaching, and also the joint work of professors and students in the way of perceiving the truth. According to the author the 50th anniversary of the Department of Psychology is an occasion to both recall the path members of the Department went over the years, including several epochs, and to outline the prospects for further development. Considerable attention is paid to the personality of G.M. Andreeva, who is a gifted teacher,
a brilliant scholar, and one of the founders of social psychology in the Russia. Particular attention is drawn to Galina Andreeva collecting the brightest staff of the Chair of Social Psychology, whose key feature was involvement in both the scientific and also collective life of the Department, which contributed to the development of the new important branch of psychology. The author also singles out the figure of the wonderful teacher L.A. Petrovskaya who encouraged the students to cherish their individuality as she believed it to be the main tool of the professional psychologist. With much gratitude the author recalls tips for organizing the teaching process received from A.U.
Kharash. The paper characterizes the current state and the importance of the Department, and outlines the prospects for further development. In particular, the author speaks of the
need for developing student personal involvement in professional activities, and also of creating favourable conditions at the Deaprtment for a student successful transition from training to real life
Art world in psalm versifications of M. V. Lomonosov
No full text© Journal of Language and Literature. A new aspect of the study of psalm versifications of M. V. Lomonosov, which is manifested through the visualization of the art world, has been proposed. The aim of the work is the study of psalm versifications of M. V. Lomonosov for understanding the inner world of the poet in particular and peculiarities of classicism poetics in general. Based on the paraphrase analysis the worldview of M. V. Lomonosov is revealed, his images are specified, their characteristics are defined, spatiotemporal organization of texts is investigated, their symbolism, poetic techniques, used by the author to create an artistic picture of the world, are established. The use of hermeneutic method allows us to understand the spiritual poetry of the poet-citizen who creates meaningful and symbolic art world from fragmentary semantic plot elements. Psalm versification is regarded as an opportunity for self-realization in the poetry of the XVIII century. The study of poetic psalm versifications suggests individually oriented treatment of M. V. Lomonosov to the genre of psalm versification, to decipher the code of his spiritual odes
Бесконечный талант
No full textUnderestimated by his contemporaries, but a person, who became a source of many brilliant ideas for followers of his talent and civic courage – that is Mikhail Lomonosov seen from today. And there are reasons for it, mentioned by the author of this biographical article.Недооцененный современниками, но ставший источником многих блестящих идей для последователей его таланта и гражданского мужества – таков Михаил Ломоносов сегодня. И тому есть причины, о которых говорит автор этой биографической статьи
Art world in psalm versifications of M. V. Lomonosov
No full text© Journal of Language and Literature. A new aspect of the study of psalm versifications of M. V. Lomonosov, which is manifested through the visualization of the art world, has been proposed. The aim of the work is the study of psalm versifications of M. V. Lomonosov for understanding the inner world of the poet in particular and peculiarities of classicism poetics in general. Based on the paraphrase analysis the worldview of M. V. Lomonosov is revealed, his images are specified, their characteristics are defined, spatiotemporal organization of texts is investigated, their symbolism, poetic techniques, used by the author to create an artistic picture of the world, are established. The use of hermeneutic method allows us to understand the spiritual poetry of the poet-citizen who creates meaningful and symbolic art world from fragmentary semantic plot elements. Psalm versification is regarded as an opportunity for self-realization in the poetry of the XVIII century. The study of poetic psalm versifications suggests individually oriented treatment of M. V. Lomonosov to the genre of psalm versification, to decipher the code of his spiritual odes
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