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Razzhigaeva N. G. Kopoteva T. A. Makarova T. R. Grebennikova T. A. Lyashchevskaya M. S. Mokhova L. M. Ganzey L. A. Kudryavtseva E. P. Panichev A. M. Klimin M. A. Arslanov Kh. A. Maksimov F. E. Petrov A. Yu. 《Doklady Earth Sciences》2023,507(1):S69-S80
Doklady Earth Sciences - Comprehensive study of sections of mares in the Bolshaya Ussurka River basin has allowed highlighting climate changes over the past 2900 years. Reconstructions are based on... 相似文献
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Nazarova L. B. Razjigaeva N. G. Diekmann B. Grebennikova T. A. Ganzey L. A. Belyanina N. I. Arslanov K. A. Kaistrenko V. M. Gorbunov A. O. Kharlamov A. A. Golovatyuk L. V. Syrykh L. S. Subetto D. A. Lisitsyn A. P. 《Doklady Earth Sciences》2019,486(1):494-497
Doklady Earth Sciences - Results of a paleolimnological investigation of a well-dated lake sediment section from Shikotan Island (Southern Kurils) showed that from ca 8.0 to 5.8 cal ka BP a warm... 相似文献
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MINERALOGY OF COASTAL DEPOSITS OF NORTH-WESTERN SEA OF JAPAN 总被引：1，自引：0，他引：1
Distribution of heavy, light and clay minerals in Late Pleistocene—Holocene deposits from different coastal environments (beaches, lagoons, dunes, relict lakes, ria bays and inlets, open inlets) was analysed. It was established that mineralogical composition of coastal deposits was a result of provenance and its hypergenous changes, transformation of material within transit zone, and accumulative conditions of inshore zone. Contents of stable minerals increase in deposits of the inlets confined to mouths of the small streams and in horizons of the sections, formed during regressive phases. Unstable minerals amount is higher in deposits of inlets, confined to mouths of the large river. The clay mineral fraction of shelf sediments consists mostly of illite. Authigenous pyrites dominate in deposits of ria bays, lagoons and relict lakes, formed during transgressive phases. Volcanic glass, found in deposits, is product of Holocene eruptions of Baegdusan (Baitushen) Volcano. 相似文献
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N. G. Razjigaeva L. A. Ganzey T. A. Grebennikova E. D. Ivanova A. A. Kharlamov V. M. Kaistrenko A. A. Shishkin 《Pure and Applied Geophysics》2013,170(6-8):1081-1102
Sediment deposited by the Tohoku tsunami of March 11, 2011 in the Southern Kurils (Kunashir, Shikotan, Zeleniy, Yuri, Tanfiliev islands) was radically different from sedimentation during local strong storms and from tsunamis with larger runup at the same location. Sediments from the 2011 Tohoku tsunami were surveyed in the field, immediately and 6 months after the event, and analyzed in the laboratory for sediment granulometry, benthos Foraminifa assemblages, and diatom algae. Run-up elevation and inundation distance were calculated from the wrackline (accumulations of driftwood, woody debris, grass, and seaweed) marking the distal edge of tsunami inundation. Run-up of the tsunami was 5 m at maximum, and 3–4 m on average. Maximum distance of inundation was recorded in river mouths (up to 630 m), but was generally in the range of 50–80 m. Although similar to the local strong storms in runup height, the tsunami generally did not erode the coast, nor leave a deposit. However, deposits uncharacteristic of tsunami, described as brown aleuropelitic (silty and clayey) mud rich in organic matter, were found in closed bays facing the South Kuril Strait. These closed bays were covered with sea ice at the time of tsunami. As the tsunami waves broke the ice, the ice floes enhanced the bottom erosion on shoals and destruction of low-lying coastal peatland even at modest ranges of runup. In the muddy tsunami deposits, silt comprised up to 64 % and clay up to 41.5 %. The Foraminifera assemblages displayed features characteristic of benthic microfauna in the near-shore zone. Deep-sea diatoms recovered from tsunami deposits in two closely situated bays, namely Krabovaya and Otradnaya bays, had different requirements for environmental temperature, suggesting these different diatoms were brought to the bays by the tsunami wave entraining various water masses when skirting the island from the north and from the south. 相似文献
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N. G. Razzhigaeva L. A. Ganzey A. M. Panichev T. A. Grebennikova L. M. Mokhova T. A. Kopoteva E. P. Kudryavtseva Kh. A. Arslanov F. E. Maksimov A. A. Starikova S. V. Zakusin 《Izvestiya Atmospheric and Oceanic Physics》2017,53(7):679-698
The response of landscape biotic components of the western slope of the Sikhote-Alin Mountains (Bikin River middle flow) to the Middle–Late Holocene climate changes is discussed. The paleoreconstruction object was the Krasny Yar mari, which developed under the control of multidirectional short-term climatic changes. The last millennium was marked by particularly rapid and frequent changes in the local landscapes. The closely spaced orographic barrier strongly affected the development of biotic components and changes in the swamp hydrological regime. The moisture dynamics within the river catchment considerably controlled the development and change of the peat-forming plants. Several stages of the mari development were reconstructed; each began from the accumulation of eutrophic peat. It was followed by the transitional eutrophic–mesotrophic stage, with a higher role of atmospheric supply. The larch forests appeared in this part of the valley within the Atlantic–Subboreal cooling period. Korean pine developed in the forest vegetation in the low mountain relief at the beginning of the Subboreal and became one of the leading trees ~2.6–2.3 ka BP. The lower role of the Korean pine and birch forest expansion in the first half of the Subatlantic could be related to the fires. The broadleaf–Korean pine forests became widespread in the Medieval Warm Period. Local swamp landscapes changed dramatically in the Little Ice Age, while the slope vegetation was not subject to any major changes. The landscapes were also affected by the fires, which became more frequent. The derivative communities with birch appeared on the mari. Moreover, this part of the valley was occasionally subject to heavy flooding. 相似文献
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Razjigaeva N. G. Ganzey L. A. Grebennikova T. A. Mokhova L. M. Arslanov Kh. A. Maksimov F. E. Petrov A. Yu. Sakhno V. G. 《Doklady Earth Sciences》2020,494(2):779-786
Doklady Earth Sciences - The first finds of B–Tm volcanic ash of the catastrophic eruption of Baitoushan Volcano in the 10th century (946/947 AD) in the terrestrial deposits of Primorye are... 相似文献
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N. G. Razzhigaeva L. A. Ganzey T. A. Grebennikova A. A. Kharlamov Kh. A. Arslanov V. M. Kaistrenko A. O. Gorbunov A. Yu. Petrov 《Russian Journal of Pacific Geology》2017,11(1):34-45
Tsunamis are reconstructed on the basis of distribution of tsunamigenic sediments in coastal lowland sections. Reflections of anomalous tsunamis are recorded in detail in the lacustrine–boggy sections of the Lesser Kuril Ridge, while only fragments of these sediments have been found on the islands of the Greater Kuril Ridge. The distribution and composition of the sediments left by recent large-scale tsunamis (locally documented 1994 and 1894 Shikotan tsunamis and transoceanic 2011 Tohoku tsunami) are analyzed for the purpose of understanding deposition features during large and megatsunamis. Interregional correlation of the events during the last ~2.5 kyr is carried out with estimation of their scales. It is established that large events took place in the 17th and 18th centuries and approximately at 1.0, 1.4–1.6, 1.7–1.8, and 2.0–2.1 ka ago. New data on large tsunami chronology since the Middle Holocene are presented. A unique natural peatland section with abundant tsunamigenic sand layers is studied on the Pacific side of Zelenyi Island (Rudnya Bay), where deposition continued through the entire Holocene. The largest tsunamis which happened on the South Kuril Islands during the last ~7.5 kyr and can be classed as megatsunamis are revealed. 相似文献
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Ganzey S.S. 《地球信息科学学报》2007,9(1):26-34
在跨国边境地区的诊断分析中采用的对于环境问题进行分析的方法性的理论原则,在许多方面决定了战略行动计划实现的效率。但是我们认为这种跨国边境地区的诊断分析方法应该包括环境和地理制图,以及在陆地景观组织分析的基础上进行的功能性分区。边境地区可持续性自然管理的理论原则是用边界来保护自然资源的潜力或者甚至使之增长。因此景观功能分区会要求对边境区域内各种优先的、许可的和禁止的经济利用的分析。保护性政治制度的确立、把资源管理与维护生态平衡的措施结合和阻止自然与人类的负反馈这3项景观优化原则具体的实现就是跨国边境地区景观功能分区地图,这就是我们认为的边境地区诊断分析的主要目标。在分析陆地景观组织的基础上,本文主要介绍边界地区景观功能分区诊断分析的方法(用于景观规划)。该方法在在中俄边境的Pogranichny-taipailing自然地理区域,利用Landsat-TM图像进行试验和验证。本文的研究表明对边境地区景观结构特征进行诊断分析是必要的,分析包括它的现代经济利用方式、经济活动对景观的干扰、地理景观系统对人类活动压力的敏感性。研究结果通过绘制研究区景观分区地图得以体现,地图科学地证明了举措对于减轻包括边界地区在内的区域环境问题具有一定的价值。这样的方法提供了在保证国家环境安全的原则下,对边境地区自然环境可持续性的管理。 相似文献