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
The establishment on the Far East of the orthodox Church and cultural stereotypes of the traditional Russian city occurred through active church building. The temples of the Far Eastern cities by its position in urban...The establishment on the Far East of the orthodox Church and cultural stereotypes of the traditional Russian city occurred through active church building. The temples of the Far Eastern cities by its position in urban environment played a role of the basic exponents of the spiritual-state ideals of Russia. Ussumption cathedrals in Khabarovsk and Vladivostok, Nikolsky cathedral in Nikcolsk-Ussurisk, Shadrinsky cathedral in Blagoveshchensk, Saint-Nikolaevsky at Russiand iplomatic mission in Seoul and other orthodox temples of the last thirty years of the XIX-the beginning of the XX-th centuries inherited ancient Russian tradition and were designed in the Byzantian style, style of the Moscow XVII century architecture, in Russian style. The ideas of ″the orthodox, the autocracy and the nationality″ in town-planning are expressed also in devotions of temples and names of new settlements. For example, a large number of temples is devoted to Saint Nicholas. Only in the Primorye Territory they are about 20. Harbin’s Saint-Nikolaevsky cathedral also in a name Nicholas. Harbin’s the Sofia church is devoted to a great symbol Ancient Russia and Russian Empire - church of Saint Sofia in Constantinople. The general plans of settlements and cities of the Far East of the second half of the XIX and boundary XIX-XX centuries were realized by two leading directions of town-planning of Russia: the first is based on the norms of regular town-planning, the second is one connected with the realization of the city - garden concept. The priority remains for classicismical tradition. At the same time, the general plans of Harbin, Dairen realized the innovative idea of the time-the concept of city-garden. On the Russian Far East social town-planning ideas of the city -gardens in a certain measure were embodied in 1910-s in the project of Alexseevsk town; Anutovsky country settlement on Ocean station near Vladivostok, later it was officially named-Garden-City; in a settlement for the railway servicemen on Nikolskay station of the Ussuriskay railway and others. Russian architectural town-planning tradition was enriched by new understanding of the social and town-planning purposes, realized in cities of the Far East in the end of the XIX-the beginning of the XX centuries.展开更多
This study presents new chemical and isotopic data on the two types of cold high pCO2 groundwaters located in the Mukhen deposit (Far East of Russia). The first type belongs to HCO3-Ca-Mg waters with a relatively low ...This study presents new chemical and isotopic data on the two types of cold high pCO2 groundwaters located in the Mukhen deposit (Far East of Russia). The first type belongs to HCO3-Ca-Mg waters with a relatively low TDS (up to 1.7 g/l) and high concentrations of Fe2+, Mn2+, Ba2+, and SiO2. The second type is of HCO3-Na water with high TDS (up to 14 g/l) and elevated Li+, B, Sr2+, Br?, and I?. New isotopic data of water (δ18O, δD and 3H) and gas (δ13CTIC) phases along with a detailed geological and hydrogeological investigation of the study area allowed identifying genesis of both the mineral waters. The residence time of groundwaters were calculated as well. It was established that the origin of the high pCO2 groundwaters was caused by active faulting and CO2 venting in the subsurface zone.展开更多
The Russian Far East and Northeast（NE）China are located in the eastern part of the Central Asian Orogenic Belt（CAOB）,which consists of a series of micro-continental massifs including the Erguna,Xing’an,Songnen–Z...The Russian Far East and Northeast（NE）China are located in the eastern part of the Central Asian Orogenic Belt（CAOB）,which consists of a series of micro-continental massifs including the Erguna,Xing’an,Songnen–Zhangguangcai Range,Bureya,Jiamusi,and Khanka massifs.The Khanka Massif is located in the easternmost part of the CAOB,mainly cropping out in the territory of Russia,with a small segment in NE China.To the north and west of the Khanka Massif are the Jiamusi and Songnen–Zhangguangcai Range massifs,respectively.The boundary between these massifs is marked by the Dunhua–Mishan Fault.To the south lies the North China Craton,and to the east is the Sikhote–Alin Orogenic Belt separated by the Arsenyev Fault.However,the early Paleozoic evolution and tectonic attributes of the Khanka Massif are debated.These conflicting ideas result from the lack of systematic research on early Paleozoic igneous rocks from the Russian part of the Khanka Massif.It is generally accepted that the CAOB represents the largest known Phanerozoic accretionary orogenic belt.However,questions remain concerning the nature of the deep crust beneath the Khanka Massif,and whether Precambrian crust exists within the massif itself. In this paper,we report new zircon U–Pb ages,Hf isotopic data,and major-and trace-element compositions of the early Paleozoic intrusive rocks from the Khanka Massif of the Russian Far East,with the aim of elucidating the early Paleozoic evolution and the tectonic attributes of the Khanka Massif,as well as the nature of the underlying deep crust. New U–Pb zircon data indicate that early Paleozoic magmatism within the Khanka Massif can be subdivided into at least four stages:;02 Ma,;92 Ma,462–445 Ma,and;30 Ma. The;02 Ma pyroxene diorites show negative Eu anomalies,and the;92 Ma syenogranites,intruding the;02 Ma diorites,show positive Eu anomalies.These observations indicate that the primary parental magmas of these rocks were derived from different origins. The 462–445 Ma magmatism is made up of syenogranites and tonalites.The;45 Ma Na-rich tonalites contain low REE concentrations,and are enriched in Eu and Sr.These observations,together with the positiveεHf（t）values,indicate that they were derived from magmas generated by partial melting of cumulate gabbros. The;30 Ma I-type granodiorites and monzogranites from the northern Khanka Massif,and the A-type monzogranites from the central Khanka Massif display zirconεHf（t）values ranging from–5.4 to+5.8.This suggests that they formed from magmas generated by partial melting of heterogeneous lower crustal material. Zircon Hf isotopic data reveal the existence of Precambrian crustal material within the Khanka Massif.The geochemistry of the Middle Cambrian intrusive rocks is indicative of formation in an extensional setting,while Late Cambrian–middle Silurian magmatism was generated in an active continental margin setting associated with the subduction of a paleo-oceanic plate beneath the Khanka Massif.Regional comparisons of the magmatic events indicate that the Khanka Massif has a tectonic affinity to the Songnen–Zhangguangcai Range Massif rather than the Jiamusi Massif.展开更多
326 species of spiders belonging to 26 families are recorded from the Bolshekhekhtsyrski State Nature Reserve,of them 70 are new records for the reserve and six are new to the fauna of Russia:Asperthorax borealis Ono ...326 species of spiders belonging to 26 families are recorded from the Bolshekhekhtsyrski State Nature Reserve,of them 70 are new records for the reserve and six are new to the fauna of Russia:Asperthorax borealis Ono et Saito,2001; Cyclosa kumadai Tanikawa,1992; Cyclosa okumae Tanikawa,1992(earlier it was identified as C. argenteoalba Bosenberg et Strand,1906); Haplodrassus taepaikensis Paik,1992; Hypselistes fossilobus Fei et Zhu,1993; and Pachygnatha gaoi Zhu et al.,2003. The name Pronous minutus (S. Saito,1939) is synonymized with Pronoides brunneus Schenkel,1936. The male of H. taepaikensis is illustrated for the first time. Composition of the fauna is briefly discussed; 41% of the recorded species have their ranges confined to the SE Palaearctics. By its species diversity,the reserve's fauna is the second largest local fauna eastward of the Urals. An expected spider diversity of this reserve is likely to be over 400 species.展开更多
Decades after ecologist realized the negative effects of species alien to local floras and faunas, and started investigating the effects of them, particularly those that cause invasions, governments started accepting ...Decades after ecologist realized the negative effects of species alien to local floras and faunas, and started investigating the effects of them, particularly those that cause invasions, governments started accepting the importance of this issue and biological invasions became a well-known environmental problem. In spite of this, not many countries have so far made a detailed assessment of their alien invasive species. The United Kingdom, USA, and other developed countries are in the lead but their economically less developed counterparts are lagging behind. Thus, it is surprising that whilst a freshly published report on the invasive alien species of South Africa was highlighted on the pages of Nature (Wild,2018), the extensive two- volume book on the invasive species of China, published by Springer in 2017, gained less attention.展开更多
China’s Chang’e-4 probe touched down on the far side of the moon on January 3,the first spacecraft soft-landing on the moon’s uncharted side never visible from Earth.The probe,comprising a lander and a rover,landed...China’s Chang’e-4 probe touched down on the far side of the moon on January 3,the first spacecraft soft-landing on the moon’s uncharted side never visible from Earth.The probe,comprising a lander and a rover,landed at the preselected landing area at 177.6 degrees east longitude and 45.5 degrees south latitude on the far side of the moon at 10:26 a.m.Beijing time,the China National Space Administration announced.The far side of the moon has never been closely observed before.Therefore,getting first-hand information about the terrain and lunar soil components,as well as other scientific data,will help enrich human understanding of the moon.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.
文摘The establishment on the Far East of the orthodox Church and cultural stereotypes of the traditional Russian city occurred through active church building. The temples of the Far Eastern cities by its position in urban environment played a role of the basic exponents of the spiritual-state ideals of Russia. Ussumption cathedrals in Khabarovsk and Vladivostok, Nikolsky cathedral in Nikcolsk-Ussurisk, Shadrinsky cathedral in Blagoveshchensk, Saint-Nikolaevsky at Russiand iplomatic mission in Seoul and other orthodox temples of the last thirty years of the XIX-the beginning of the XX-th centuries inherited ancient Russian tradition and were designed in the Byzantian style, style of the Moscow XVII century architecture, in Russian style. The ideas of ″the orthodox, the autocracy and the nationality″ in town-planning are expressed also in devotions of temples and names of new settlements. For example, a large number of temples is devoted to Saint Nicholas. Only in the Primorye Territory they are about 20. Harbin’s Saint-Nikolaevsky cathedral also in a name Nicholas. Harbin’s the Sofia church is devoted to a great symbol Ancient Russia and Russian Empire - church of Saint Sofia in Constantinople. The general plans of settlements and cities of the Far East of the second half of the XIX and boundary XIX-XX centuries were realized by two leading directions of town-planning of Russia: the first is based on the norms of regular town-planning, the second is one connected with the realization of the city - garden concept. The priority remains for classicismical tradition. At the same time, the general plans of Harbin, Dairen realized the innovative idea of the time-the concept of city-garden. On the Russian Far East social town-planning ideas of the city -gardens in a certain measure were embodied in 1910-s in the project of Alexseevsk town; Anutovsky country settlement on Ocean station near Vladivostok, later it was officially named-Garden-City; in a settlement for the railway servicemen on Nikolskay station of the Ussuriskay railway and others. Russian architectural town-planning tradition was enriched by new understanding of the social and town-planning purposes, realized in cities of the Far East in the end of the XIX-the beginning of the XX centuries.
文摘This study presents new chemical and isotopic data on the two types of cold high pCO2 groundwaters located in the Mukhen deposit (Far East of Russia). The first type belongs to HCO3-Ca-Mg waters with a relatively low TDS (up to 1.7 g/l) and high concentrations of Fe2+, Mn2+, Ba2+, and SiO2. The second type is of HCO3-Na water with high TDS (up to 14 g/l) and elevated Li+, B, Sr2+, Br?, and I?. New isotopic data of water (δ18O, δD and 3H) and gas (δ13CTIC) phases along with a detailed geological and hydrogeological investigation of the study area allowed identifying genesis of both the mineral waters. The residence time of groundwaters were calculated as well. It was established that the origin of the high pCO2 groundwaters was caused by active faulting and CO2 venting in the subsurface zone.
文摘The Russian Far East and Northeast（NE）China are located in the eastern part of the Central Asian Orogenic Belt（CAOB）,which consists of a series of micro-continental massifs including the Erguna,Xing’an,Songnen–Zhangguangcai Range,Bureya,Jiamusi,and Khanka massifs.The Khanka Massif is located in the easternmost part of the CAOB,mainly cropping out in the territory of Russia,with a small segment in NE China.To the north and west of the Khanka Massif are the Jiamusi and Songnen–Zhangguangcai Range massifs,respectively.The boundary between these massifs is marked by the Dunhua–Mishan Fault.To the south lies the North China Craton,and to the east is the Sikhote–Alin Orogenic Belt separated by the Arsenyev Fault.However,the early Paleozoic evolution and tectonic attributes of the Khanka Massif are debated.These conflicting ideas result from the lack of systematic research on early Paleozoic igneous rocks from the Russian part of the Khanka Massif.It is generally accepted that the CAOB represents the largest known Phanerozoic accretionary orogenic belt.However,questions remain concerning the nature of the deep crust beneath the Khanka Massif,and whether Precambrian crust exists within the massif itself. In this paper,we report new zircon U–Pb ages,Hf isotopic data,and major-and trace-element compositions of the early Paleozoic intrusive rocks from the Khanka Massif of the Russian Far East,with the aim of elucidating the early Paleozoic evolution and the tectonic attributes of the Khanka Massif,as well as the nature of the underlying deep crust. New U–Pb zircon data indicate that early Paleozoic magmatism within the Khanka Massif can be subdivided into at least four stages:;02 Ma,;92 Ma,462–445 Ma,and;30 Ma. The;02 Ma pyroxene diorites show negative Eu anomalies,and the;92 Ma syenogranites,intruding the;02 Ma diorites,show positive Eu anomalies.These observations indicate that the primary parental magmas of these rocks were derived from different origins. The 462–445 Ma magmatism is made up of syenogranites and tonalites.The;45 Ma Na-rich tonalites contain low REE concentrations,and are enriched in Eu and Sr.These observations,together with the positiveεHf（t）values,indicate that they were derived from magmas generated by partial melting of cumulate gabbros. The;30 Ma I-type granodiorites and monzogranites from the northern Khanka Massif,and the A-type monzogranites from the central Khanka Massif display zirconεHf（t）values ranging from–5.4 to+5.8.This suggests that they formed from magmas generated by partial melting of heterogeneous lower crustal material. Zircon Hf isotopic data reveal the existence of Precambrian crustal material within the Khanka Massif.The geochemistry of the Middle Cambrian intrusive rocks is indicative of formation in an extensional setting,while Late Cambrian–middle Silurian magmatism was generated in an active continental margin setting associated with the subduction of a paleo-oceanic plate beneath the Khanka Massif.Regional comparisons of the magmatic events indicate that the Khanka Massif has a tectonic affinity to the Songnen–Zhangguangcai Range Massif rather than the Jiamusi Massif.
文摘326 species of spiders belonging to 26 families are recorded from the Bolshekhekhtsyrski State Nature Reserve,of them 70 are new records for the reserve and six are new to the fauna of Russia:Asperthorax borealis Ono et Saito,2001; Cyclosa kumadai Tanikawa,1992; Cyclosa okumae Tanikawa,1992(earlier it was identified as C. argenteoalba Bosenberg et Strand,1906); Haplodrassus taepaikensis Paik,1992; Hypselistes fossilobus Fei et Zhu,1993; and Pachygnatha gaoi Zhu et al.,2003. The name Pronous minutus (S. Saito,1939) is synonymized with Pronoides brunneus Schenkel,1936. The male of H. taepaikensis is illustrated for the first time. Composition of the fauna is briefly discussed; 41% of the recorded species have their ranges confined to the SE Palaearctics. By its species diversity,the reserve's fauna is the second largest local fauna eastward of the Urals. An expected spider diversity of this reserve is likely to be over 400 species.
文摘Decades after ecologist realized the negative effects of species alien to local floras and faunas, and started investigating the effects of them, particularly those that cause invasions, governments started accepting the importance of this issue and biological invasions became a well-known environmental problem. In spite of this, not many countries have so far made a detailed assessment of their alien invasive species. The United Kingdom, USA, and other developed countries are in the lead but their economically less developed counterparts are lagging behind. Thus, it is surprising that whilst a freshly published report on the invasive alien species of South Africa was highlighted on the pages of Nature (Wild,2018), the extensive two- volume book on the invasive species of China, published by Springer in 2017, gained less attention.
文摘China’s Chang’e-4 probe touched down on the far side of the moon on January 3,the first spacecraft soft-landing on the moon’s uncharted side never visible from Earth.The probe,comprising a lander and a rover,landed at the preselected landing area at 177.6 degrees east longitude and 45.5 degrees south latitude on the far side of the moon at 10:26 a.m.Beijing time,the China National Space Administration announced.The far side of the moon has never been closely observed before.Therefore,getting first-hand information about the terrain and lunar soil components,as well as other scientific data,will help enrich human understanding of the moon.
