Geology of yellowstone

An earthquake swarm from 26 December to 5 January was centered beneath the N end of Yellowstone Lake. Earthquake swarm, January-February

Geology of yellowstone

Here, glacial erratics foregroundground moraines midgroundand Cutoff Mountain background appear near Junction Butte. All of this geologic activity formed the mountains, canyons and plateaus that define the natural wonder that is Yellowstone National Park.

Geology of yellowstone

While these mountains and canyons may appear to change very little during our lifetime, they are still highly dynamic and variable. One of the most geologically dynamic areas on Earth due to a shallow source of magma and resulting volcanic activity.

One of the largest volcanic eruptions known to have occurred in the world, creating one of the largest known calderas. More than 10, hydrothermal features, including approximately geysers—the most undisturbed hydrothermal features left in the world.

One of the few places in the world where active travertine terraces are found, at Mammoth Hot Springs. Site of many petri ed trees formed by a series of andesitic volcanic eruptions 45 to 50 million years ago.

The earth is frequently depicted as a ball with a central core surrounded by concentric layers that culminate in the crust or outer shell. The core of the earth is divided into two parts.

Above the mantle is the relatively thin crust, three to forty-eight miles thick, forming the continents and ocean floors. Where plate edges meet they may slide past one another, pull apart from each other, or collide into each other.

Global Volcanism Program | Yellowstone

When plates collide, one plate is commonly driven beneath another subduction. At divergent plate boundaries—like mid-ocean ridges—the upwelling of magma pulls plates apart from each other.

Many theories have been proposed to explain crustal plate movement. Scientific evidence shows that convection currents in the partially molten asthenosphere the zone of mantle beneath the lithosphere move the rigid crustal plates above.

Unpredictable and dormant for years, Steamboat Geyser has been quite active in At a Glance Although a cataclysmic eruption of the Yellowstone volcano is unlikely in the foreseeable future, real-time monitoring of seismic activity, volcanic gas concentrations, geothermal activity, and ground deformation helps ensure public safety.

Scientists continue to improve our capacity to monitor the Yellowstone volcano through the deployment of new technology.

Beginning inscientist implemented very precise Global Positioning Systems, capable of accurately measuring vertical and horizontal ground- motions to within a centimeter; and satellite radar imagery of ground movements called InSAR. These measurements indicated that parts of the Yellowstone caldera were rising at an unprecedented rate of up to seven centimeters 2.

The caldera began to subside during the first half ofabout five centimeters 2 in at White Lake so far. Episodes of uplift and subsidence have been correlated with changes in the frequency of earthquakes in the park.

On March 30, at 6: This is the largest earthquake at Yellowstone since the early s. Analysis of the M4. Energy and groundwater development outside the park, especially in known geothermal areas in Island Park, Idaho, and Corwin Springs, Montana, could alter the functioning of hydrothermal systems in the park.American Black Bear.

The American black bear is the most commonly seen bear in North America, and it has the largest geographic range.

Geology of yellowstone

Black bears can be found as far south as central Mexico and as far north as northern Alaska and most of Canada. Our Yellowstone Map sites offer visitors a perspective on distances to the parks main attractions.

Geology & History

The Park is so large that maps are essential for planning your vacation or just a weekend trip. Winter in Yellowstone means fewer crowds, frigid temperatures, and steaming geyser basins.

Skis, snowshoes, snowcoaches, and snowmobiles become the primary modes of transportation as roads close, rivers and lakes freeze, and snowstorms transform the park into a winter wonderland.. Restricted vehicle access and limited services make winter visits challenging.

Geology news articles and videos from's Science section. A little about us: The Ground Water Information Center (GWIC) at the Montana Bureau of Mines and Geology (MBMG) is the central repository for information on the ground-water resources of Montana.

The park is full of exciting wonders. The wildest geysers in the world hills of sparkling crystal, hills of glass, hills of cinders and ashes, mountains of every style of architecture, icy or forested mountains boiled soft like potatoes and colored like a sunset sky.

Yellowstone Geology