The interannual variability of the east asian upper-tropospheric westerly jet（EAJ） in summer is characterized by the meridional displacement of its axis, or a seesaw pattern of zonal wind anomalies between the north...The interannual variability of the east asian upper-tropospheric westerly jet（EAJ） in summer is characterized by the meridional displacement of its axis, or a seesaw pattern of zonal wind anomalies between the northern and southern flanks of the EAJ. This study reveals a close relationship between the surface air temperature in the russian far east and the northern flank of the EAJ. Related to a warmer surface in the russian far east, the westerly decelerates in the northern flank of the EAJ. The relationship can be explained by a positive feedback mechanism between the surface air temperature in the russian far east and the overhead circulation： the anticyclonic circulation anomaly related to a weakened westerly in the northern flank of the EAJ induces surface warming in the russian far east and the warmer surface can in turn act as a heat source and induces a local anticyclonic circulation anomaly in the upper troposphere, therefore decelerating the westerly in the northern flank of the EAJ. The result implies that a better description of the summer surface condition in the russian far east may benefit seasonal forecasts of the EAJ and, subsequently, east asian summer climate.展开更多
The paper describes the sedimentary features and biostratigraphy of the transitional Jurassic to Cretaceous deposits in the continental basins of Priamurie formed after the collision between the Siberian and North Chi...The paper describes the sedimentary features and biostratigraphy of the transitional Jurassic to Cretaceous deposits in the continental basins of Priamurie formed after the collision between the Siberian and North China blocks. In Upper Priamurie, the collision occurred in the late Early Jurassic as dated by the emplacement of the post-collisional granites （ 191 Ma）. While in Lower Priamurie and West Priokhotie it could take place in the late Middle Jurassic on the basis of fossil evidence from an aceretionary turbidite complex. This event reflected the environmental change from coastal-marine to alluvial plains, often boggy, where coals aecmnulated. The environinental change is in harmony with that of biota. Systematic study of floral and spores/pollen assemblages, particularly in the sections of interbedded marine and non-marine deposits, makes clear the chronostrati-graphic succession of floral associations and shows the possibility of their application for subdivision and correlation of the continental deposits of Priamurie. Tire coastal-marine environment of the residual post-collisional sublatitudinal basins in the uestern part of Priamurie （Upper Amur and Dep basins） was replaced by the continental in the late Middle Jurassic and in the eastern part in the Berriasian-Valanginian （Torom Basin）. Similar environmental change commenced in the submeridional rift basins： the Bureya Basin in the Callovian and the Partizansk Basin in the Hauterivian. Changes in ecosystems ocemTed frequently during the Middle Jurassic-Ne- ocomian, but the most substantial changes took place in the late Middle Jurassic and in the end of Late Jurassie.展开更多
Present article is on Russian Far East carnivorous dinosaur paleoecology.Described summary is based on detailed study and comparison of isolated shed teeth morphology.
On the Pacific coast of Russia implementation of the methodology of the integrated nature management has a number of peculiarities. On the one hand, these districts are characterized by severe hydrometeorological cond...On the Pacific coast of Russia implementation of the methodology of the integrated nature management has a number of peculiarities. On the one hand, these districts are characterized by severe hydrometeorological conditions. On the other hand, Russia has no applicable legislation on coastal issues. Thus, to prepare informational, theoretical and methodical bases for organization of sustained nature management in coastal zones of the Russian Federation, we developed hierarchy structure of delimitation of coastal areas and recommendations for their development on the basis of nature resource and social-economic zoning. Zoning of the Russian Far East is suggested to include two major directions： （1） planning of sustainable development of the region and （2） solving contradictions between fisheries and productions of oil and gas in the coastal zones.展开更多
Hankaisky Region is the mest densely populated and economic developed part of the Primorskiy Krai. It is promoting development of dangerous geological processes there. In the article.the reasons of formation and inten...Hankaisky Region is the mest densely populated and economic developed part of the Primorskiy Krai. It is promoting development of dangerous geological processes there. In the article.the reasons of formation and intensive development in Hankaisky Region of the following dangerous geological processes lateral, winder and ground erosive, sill, floods, taluses, bogging, slope wash, karts, rebound of ground are considered.展开更多
Petroleum industry plays an important role in both the Chinese and Russian economy.Petroleum cooperation between the two countries continue to accelerate since China opening wider to the outside world, and Chinese oil...Petroleum industry plays an important role in both the Chinese and Russian economy.Petroleum cooperation between the two countries continue to accelerate since China opening wider to the outside world, and Chinese oil companies have increased their presence in Russia. Sino–Russia joint-ventures, oil & gas trade has progressed smoothly, there is a better future for cooperation in oil & gas development in Russian Far Eastern region. Chinese and Russian companies will continue to benefit from collaboration in petroleum industry.展开更多
Volcanic glass compositions and tephra layer age are critical for anchoring their sources and correlating among different sites; however, such work may be imprecise when the tephra has varied compositions. The ash fro...Volcanic glass compositions and tephra layer age are critical for anchoring their sources and correlating among different sites; however, such work may be imprecise when the tephra has varied compositions. The ash from Changbaishan Millennium eruption(940s AD), a widely distributed tephra layer, has been detected in the far-east areas of Russia, the Korean Peninsula, Japan, and in Greenland ice cores. There are some debates on the presence of this tephra from sedimentary archives to the west of Changbaishan volcano, such as lake and peat sediments in the Longgang volcanic field. In this paper, major element compositions for clinopyroxene and Fe-Ti oxides were performed on proximal tephra from Changbaishan and the Millennium eruption ash record in Lake Sihailongwan. Clinopyroxene and Fe-Ti oxides microlites from Sihailongwan show augite-ferroaugite and titanmagnetite compositions, similar to those from dark pumice in Changbaishan proximal tephra, but different from the light grey pumice, which has ferrohedenbergite and ilmenite microlite compositions. This result implies that the tephra recorded in Sihailongwan was mainly from the trachytic eruptive phase of the Millennium eruption, and the rhyolitic eruptive phase made a relatively small contribution to this area. Analyzing clinopyroxene and Fe-Ti oxides microlites is a new method for correlating tephra layers from Changbaishan Millennium eruption.展开更多
基金supported by the National Natural Science Foundation of China(Grant Nos.41320104007,41775062,41375086,U1502233,and 41775083)
文摘The interannual variability of the east asian upper-tropospheric westerly jet（EAJ） in summer is characterized by the meridional displacement of its axis, or a seesaw pattern of zonal wind anomalies between the northern and southern flanks of the EAJ. This study reveals a close relationship between the surface air temperature in the russian far east and the northern flank of the EAJ. Related to a warmer surface in the russian far east, the westerly decelerates in the northern flank of the EAJ. The relationship can be explained by a positive feedback mechanism between the surface air temperature in the russian far east and the overhead circulation： the anticyclonic circulation anomaly related to a weakened westerly in the northern flank of the EAJ induces surface warming in the russian far east and the warmer surface can in turn act as a heat source and induces a local anticyclonic circulation anomaly in the upper troposphere, therefore decelerating the westerly in the northern flank of the EAJ. The result implies that a better description of the summer surface condition in the russian far east may benefit seasonal forecasts of the EAJ and, subsequently, east asian summer climate.
文摘The paper describes the sedimentary features and biostratigraphy of the transitional Jurassic to Cretaceous deposits in the continental basins of Priamurie formed after the collision between the Siberian and North China blocks. In Upper Priamurie, the collision occurred in the late Early Jurassic as dated by the emplacement of the post-collisional granites （ 191 Ma）. While in Lower Priamurie and West Priokhotie it could take place in the late Middle Jurassic on the basis of fossil evidence from an aceretionary turbidite complex. This event reflected the environmental change from coastal-marine to alluvial plains, often boggy, where coals aecmnulated. The environinental change is in harmony with that of biota. Systematic study of floral and spores/pollen assemblages, particularly in the sections of interbedded marine and non-marine deposits, makes clear the chronostrati-graphic succession of floral associations and shows the possibility of their application for subdivision and correlation of the continental deposits of Priamurie. Tire coastal-marine environment of the residual post-collisional sublatitudinal basins in the uestern part of Priamurie （Upper Amur and Dep basins） was replaced by the continental in the late Middle Jurassic and in the eastern part in the Berriasian-Valanginian （Torom Basin）. Similar environmental change commenced in the submeridional rift basins： the Bureya Basin in the Callovian and the Partizansk Basin in the Hauterivian. Changes in ecosystems ocemTed frequently during the Middle Jurassic-Ne- ocomian, but the most substantial changes took place in the late Middle Jurassic and in the end of Late Jurassie.
基金supported by the Russian Foundation of Fundamental Research Grants No. 07-05-00168-а and No. 10-05-00151-аsupported by the Key-Lab for Evolution of Past Life and Environment in NE Asia, Ministry of Education, China (Jilin University)
文摘Present article is on Russian Far East carnivorous dinosaur paleoecology.Described summary is based on detailed study and comparison of isolated shed teeth morphology.
文摘On the Pacific coast of Russia implementation of the methodology of the integrated nature management has a number of peculiarities. On the one hand, these districts are characterized by severe hydrometeorological conditions. On the other hand, Russia has no applicable legislation on coastal issues. Thus, to prepare informational, theoretical and methodical bases for organization of sustained nature management in coastal zones of the Russian Federation, we developed hierarchy structure of delimitation of coastal areas and recommendations for their development on the basis of nature resource and social-economic zoning. Zoning of the Russian Far East is suggested to include two major directions： （1） planning of sustainable development of the region and （2） solving contradictions between fisheries and productions of oil and gas in the coastal zones.
文摘Hankaisky Region is the mest densely populated and economic developed part of the Primorskiy Krai. It is promoting development of dangerous geological processes there. In the article.the reasons of formation and intensive development in Hankaisky Region of the following dangerous geological processes lateral, winder and ground erosive, sill, floods, taluses, bogging, slope wash, karts, rebound of ground are considered.
文摘Petroleum industry plays an important role in both the Chinese and Russian economy.Petroleum cooperation between the two countries continue to accelerate since China opening wider to the outside world, and Chinese oil companies have increased their presence in Russia. Sino–Russia joint-ventures, oil & gas trade has progressed smoothly, there is a better future for cooperation in oil & gas development in Russian Far Eastern region. Chinese and Russian companies will continue to benefit from collaboration in petroleum industry.
基金supported by the National Natural Science Foundation of China (Grant Nos. 41472320, 41320104006 and 41272369)
文摘Volcanic glass compositions and tephra layer age are critical for anchoring their sources and correlating among different sites; however, such work may be imprecise when the tephra has varied compositions. The ash from Changbaishan Millennium eruption(940s AD), a widely distributed tephra layer, has been detected in the far-east areas of Russia, the Korean Peninsula, Japan, and in Greenland ice cores. There are some debates on the presence of this tephra from sedimentary archives to the west of Changbaishan volcano, such as lake and peat sediments in the Longgang volcanic field. In this paper, major element compositions for clinopyroxene and Fe-Ti oxides were performed on proximal tephra from Changbaishan and the Millennium eruption ash record in Lake Sihailongwan. Clinopyroxene and Fe-Ti oxides microlites from Sihailongwan show augite-ferroaugite and titanmagnetite compositions, similar to those from dark pumice in Changbaishan proximal tephra, but different from the light grey pumice, which has ferrohedenbergite and ilmenite microlite compositions. This result implies that the tephra recorded in Sihailongwan was mainly from the trachytic eruptive phase of the Millennium eruption, and the rhyolitic eruptive phase made a relatively small contribution to this area. Analyzing clinopyroxene and Fe-Ti oxides microlites is a new method for correlating tephra layers from Changbaishan Millennium eruption.
