What should be included: 1  CostHelper readers report paying $2,300 -$10,300 to install a new asphalt driveway or completely remove replace an old one, or $1.67 -$2.72 a square foot, with an average cost of $2.24 a square foot. Professional driveway sealing can cost $200 -$500 or more. 2  Asphalt driveways are typically installed by asphalt or paving contractors (although general building or landscaping contractors may do this as part of a larger project, and sub out the asphalt work.
The Yellowstone Caldera is the volcanic caldera and supervolcano located in Yellowstone National Park in the United States, sometimes referred to as the Yellowstone Supervolcano. The caldera and most of the park are located in the northwest corner of Wyoming.he Yellowstone Caldera is the volcanic caldera and supervolcano located in Yellowstone National Park in the United States, sometimes referred to as the Yellowstone Supervolcano. The caldera and most of the park are located in the northwest corner of Wyoming.
The last large eruption at Yellowstone was 640,000 years ago, and ejected around 1,000 cubic kilometres (240 cubic miles) of volcanic material. This cataclysm created the Yellowstone caldera. To get an idea of the scale of this, the largest eruption in recorded history, Mount Tambora in 1815, erupted about a sixth of that. Magma reservoirs are thought to occur beneath most volcanoes, and play a crucial role in the dynamics of eruptions.