The Yellowstone volcano is one of the largest active volcanoes in the world, and its potential hazards demand detailed seismological and geodetic studies. Previous studies with travel time tomography and receiver func...The Yellowstone volcano is one of the largest active volcanoes in the world, and its potential hazards demand detailed seismological and geodetic studies. Previous studies with travel time tomography and receiver functions have revealed a low-velocity layer in the crust beneath the Yellowstone volcano, suggesting the presence of a magma chamber at depth. We use ambient seismic noise from regional seismic stations to retrieve short-period surface waves and then study the shallow shear velocity structure of the Yellowstone region by surface wave dispersion analysis. We first obtained a crustal model of the area outside of the Yellowstone volcano and then constructed an absolute shear wave velocity structure in combination with receiver function results for the crust beneath the Yellowstone volcano. The velocity model shows a low-velocity layer with shear velocity at around 1.3 km/s, suggesting that a large-scale magma chamber exists at shallow levels within the crust of the Yellowstone volcanic region.展开更多
Yellowstone National Park is one of the most successful tourism destinations in the world, its development experience in terms of cultural tourism are valuable for Hebei, whose competitiveness is weak comparatively in...Yellowstone National Park is one of the most successful tourism destinations in the world, its development experience in terms of cultural tourism are valuable for Hebei, whose competitiveness is weak comparatively in spite of rich tourism resources. Specifically, the successful experience of Yellowstone National Park in tourism development embodies 8 aspects: planning, infrastructure construction, ticket strategy, management mechanism, investment management, environmental management, identification system design, and tourism products. On this basis, 5 suggestions are recommended to upgrade tourism in Hebei Province based on its actual situation, namely appropriate proportions of ticket and revenue, scientific management, environmental protection and education, scientific planning, and resource classification.展开更多
基金supported by China Postdoctoral Science Foundation 2012M510043,2013T60166,NSFC 41074032 and CAS KZCX2-EW-121
文摘The Yellowstone volcano is one of the largest active volcanoes in the world, and its potential hazards demand detailed seismological and geodetic studies. Previous studies with travel time tomography and receiver functions have revealed a low-velocity layer in the crust beneath the Yellowstone volcano, suggesting the presence of a magma chamber at depth. We use ambient seismic noise from regional seismic stations to retrieve short-period surface waves and then study the shallow shear velocity structure of the Yellowstone region by surface wave dispersion analysis. We first obtained a crustal model of the area outside of the Yellowstone volcano and then constructed an absolute shear wave velocity structure in combination with receiver function results for the crust beneath the Yellowstone volcano. The velocity model shows a low-velocity layer with shear velocity at around 1.3 km/s, suggesting that a large-scale magma chamber exists at shallow levels within the crust of the Yellowstone volcanic region.
基金Supported by USM Fellowship Grant offered by Universiti Sains Malaysia
文摘Yellowstone National Park is one of the most successful tourism destinations in the world, its development experience in terms of cultural tourism are valuable for Hebei, whose competitiveness is weak comparatively in spite of rich tourism resources. Specifically, the successful experience of Yellowstone National Park in tourism development embodies 8 aspects: planning, infrastructure construction, ticket strategy, management mechanism, investment management, environmental management, identification system design, and tourism products. On this basis, 5 suggestions are recommended to upgrade tourism in Hebei Province based on its actual situation, namely appropriate proportions of ticket and revenue, scientific management, environmental protection and education, scientific planning, and resource classification.
