belt

摘要： Due to the temporary gas shortage and the growing amount of LNG transported to China,LNG is becoming increasingly indispensable for ensuring the sufficient and stable supply of energy in China,for which it is gaining the increasing attention of all parties.In the process of implementing the Belt and Road Initiative,LNG has become a new favourite.The author will introduce and analyse the effect of Yamal LNG Project,the good news that Mozambique LNG Project is about to be put into production,and new opportunities for LNG cooperation that can be found along the Belt and Road route and around the world in the future.

摘要： Objective The Trans-North China Orogen(TNCO)is widely considered as a Paleoproterozoic(1.95-1.85 Ga)continental collisional belt along which the Eastern and Western blocks amalgamated to form the North China Craton.In recent years,several late Archean(~2.50 Ga)metamorphic ages were reported in this belt(Yang et al.,2015;Xiao et al.,2019;Wang et al.,2020),arousing widespread discussion on late Archean metamorphism.In the South Hengshan Complex(SHC)of the TNCO,an interesting outcrop has been discovered(Fig.1),which shows a clear truncation relationship between a strongly deformed tonal ite-trondhjemite-granodiorite(TTG)gneiss and a weakly deformed mafic dyke with'red-eye socket'texture(Fig.la).

摘要： The Belt and Road Initiative(BRI)facilitates sustainable development and deepened cooperation,while the“3060”goal(achieving peak carbon emissions by 2030 and carbon neutrality by 2060)accelerates the pace of the global energy transition.Based on the“four reforms and one cooperation”in the energy field,and the Qingdao Declaration released at the 2nd Belt and Road Energy Ministerial Conference,the article analyzes the development trends and prospects of energy cooperation under the Belt and Road Initiative.According to the Declaration,it is proposed that efforts should be made to divert the Belt and Road cooperation from the traditional mode based on oil and gas resources to the direction of interconnection,green and low-carbon,new energy,renewable energy and smart energy.

摘要： Objective“Orogenic gold deposits,”which account for 30%of global gold resources(Frimmel and Hennigh,2015),is one of the most important types of gold deposits in the world.This kind of gold deposit is supposed to have spatial and temporal distribution association with the accretionary orogenic belt.The Ailaoshan Gold Belt,where there are many large orogenic gold deposits including Jinchang,Daping,Laowangzhai,Donggualing,and Changan,contribute substantially to Chinese gold resources.The Himalayan orogen and Ailaoshan Orogen,both have experienced the early accretionary orogenesis and the subsequent collisional orogenesis are one of the biggest orogenic belts on the earth.Gold mineralization can be divided into that the earlier Yarlung Zangbo suture zone(59–44 Ma)and the later Ailaoshan Orogen(35–26 Ma)(Li et al.,2017),based on previous geochronological studies.In order to find out if there are any connections between these two gold events,we present 40Ar/39Ar data of hydrothermal sericite collected from the Xiachahe gold deposit in the northwest of the Ailaoshan Gold Belt.However,our new geochronology data regards this as a continuous gold mineralization event resulting from the India–Eurasia collision.

摘要： It is widely accepted that hydrogeochemistry of saline springs is extremely important to understand the water circulation and evolution of saline basins and to evaluate the potential of potassium-rich evaporites.The Kuqa Basin,located in the northern part of the Tarim Basin in Northwest China,is a saline basin regarded as the most potential potash-seeking area.However,the origin and water circulation processes of saline springs have yet to be fully characterized in this saline basin.In this study,a total of 30 saline spring samples and 11 river water samples were collected from the Qiulitage Structural Belt(QSB)of the Kuqa Basin.They were analyzed for major(K^+,Ca2^+,Na^+,Mg2^+,SO42-,Cl-and HCO3-)and trace(Sr2^+and Br-)ion concentrations,stable H-O-Sr isotopes and tritium concentrations in combination with previously published hydrogeochemical and isotopic(H-O)data in the same area.It is found that the water chemical type of saline springs in the study area belonged to the Na-Cl type,and that of river water belonged to the Ca-Mg-HCO3-SO4 type.The total dissolved solid(TDS)of saline springs in the QSB ranged from 117.77 to 314.92 g/L,reaching the brine level.On the basis of the general chemical compositions and the characteristics of the stable H-O-Sr isotopes of saline springs,we infer that those saline springs mainly originated from precipitation following river water recharging.In addition,we found that saline springs were not formed by evapo-concentration because it is unlikely that the high chloride concentration of saline springs resulted in evapo-concentration and high salinity.Therefore,we conclude that saline spring water may have experienced intense evapo-concentration before dissolving the salty minerals or after returning to the surface.The results show that the origin of salinity was mainly dominated by dissolving salty minerals due to the river water and/or precipitation that passed through the halite-rich stratum.Moreover,there are two possible origins of saline springs in the QSB:one is the infiltration of the meteoric water(river water),which then circulates deep into the earth,wherein it dissolves salty minerals,travels along the fault and returns to the surface;another is the mixture of formation water,or the mixture of seawater or marine evaporate sources and its subsequent discharge to the surface under fault conditions.Our findings provide new insight into the possible saltwater circulation and evolution of saline basins in the Tarim Basin.

摘要： Agala celebration was held in Beijing on April 26,2019,with almost 5,000 guests from more than 150 countries and 90 international organizations attending the second Belt and Road Forum for International Cooperation.Chinese President Xi Jinping’s 4,000-word keynote speech focused on the present and looking forward to the future.Inspiring and enlightening,this speech depicted a picture of the deep implementation of Belt and Road Initiative.

摘要： The Belt and Road Initiative offers a great opportunity to emerging market economies to enhance their economic strength. First,by participating in the Belt and Road Initiative,they can improve their domestic infrastructure,which in turn can create more jobs,reduce transportation costs,promote trade growth and build a solid foundation for rapid economic growth.

摘要： Considered a major Belt andRoad country, Brunei hasbeen attracting considerableChinese investment andbusiness operation alongsideexpanding economic, trade andpeople-to-people exchanges.During Chinese President XiJinping’s visit to Brunei inNovember 2019, China-Bruneirelationship was upgradedto strategic cooperativepartnership, heralding dawn ofa new day for traditional China-Brunei friendship.

摘要： Altaids:The conception The Altaids is tectonically sandwiched between the Baltica and Siberia cratons to the north and the Tarim and North China cratons to the south(Sengor et al.,1993).This huge orogen has been also called the Altaid collage(Yakubchuk,2004),Central Asian Orogenic Belt(CAOB)(Jahn et al.,2000a),or Central Asian Orogenic System(Briggs et al.,2007).Long before these terms,the Altaids even had been called the Asian Foldbelt,Ural-Mongolian Foldbelt,or Ural-Amurian Foldbelt,mostly by the former Soviet Union scientists(Yakubchuk,2004).