From the point of view of application, the definition of hot spot was given first. The solid geophysical evidence suggested that the Daxiawan (great gorge) in Yarlung Zangbo River should be a hot spot, which is a spec...From the point of view of application, the definition of hot spot was given first. The solid geophysical evidence suggested that the Daxiawan (great gorge) in Yarlung Zangbo River should be a hot spot, which is a special region with high ground temperature, low density, low magnetism, negative gravity abnormality, frequent earthquake and strong tectonics. According to the data available, the center of the hot spot was preliminarily decided. The difference between the ground surface and air temperature in January is negatively correlated with the distance from the hot spot center to the meteorological station. According to the ground surface energy balance equation, the geothermal flux in the center of hot spot is about 25 W/m^2. Further analysis suggested that Daxiawan is a pilot region of climate change as well as the region of the heaviest rainfall and highest latitude of tropical forest in the world.展开更多
In July through August of 2015,Tibet Autonomous Regional Institute of Cultural Relics Conservation and other institutions conducted the fourth excavation to Bangga Site.Stone architectures,pottery,lithics,archaeobotan...In July through August of 2015,Tibet Autonomous Regional Institute of Cultural Relics Conservation and other institutions conducted the fourth excavation to Bangga Site.Stone architectures,pottery,lithics,archaeobotanical and zooarchaeological remains were recovered in this excavation.The early phase of Bangga site can be dated to approximately 1045-230 BC based on the radio-carbon dating results.Bangga site is an important occupational site as our excavation provides evidence for the material culture and ancient subsistence in central Tibet in the first millennium BC.展开更多
基金Supported by the Tibet Autonomous Region Natural Science Foundation(13-44)the Funds for Agricultural Science,Technology and Services of Tibet Autonomous Region Finance Department(2018SFTG01)Key R&D and Transformation Plans Tibet Autonomous Region Scienc
基金Project supported by the National Climbing Project (KZ951-A1-204-03).
文摘From the point of view of application, the definition of hot spot was given first. The solid geophysical evidence suggested that the Daxiawan (great gorge) in Yarlung Zangbo River should be a hot spot, which is a special region with high ground temperature, low density, low magnetism, negative gravity abnormality, frequent earthquake and strong tectonics. According to the data available, the center of the hot spot was preliminarily decided. The difference between the ground surface and air temperature in January is negatively correlated with the distance from the hot spot center to the meteorological station. According to the ground surface energy balance equation, the geothermal flux in the center of hot spot is about 25 W/m^2. Further analysis suggested that Daxiawan is a pilot region of climate change as well as the region of the heaviest rainfall and highest latitude of tropical forest in the world.
文摘In July through August of 2015,Tibet Autonomous Regional Institute of Cultural Relics Conservation and other institutions conducted the fourth excavation to Bangga Site.Stone architectures,pottery,lithics,archaeobotanical and zooarchaeological remains were recovered in this excavation.The early phase of Bangga site can be dated to approximately 1045-230 BC based on the radio-carbon dating results.Bangga site is an important occupational site as our excavation provides evidence for the material culture and ancient subsistence in central Tibet in the first millennium BC.
