Web Results

Mount Shasta


Mountain type · Stratovolcano ... Mount Shasta has an estimated volume of 85 cubic miles (350 km<sup>3</sup>), which makes ... This is the largest glacial valley on the volcano, a...

Geologic Hazards of Mount Shasta


Lava flows, the growth of domes, and the blanketing of the surrounding terrain by ... Dome growth and collapse have played major roles in each of Mount ... then be used to calculate the average recurrence intervals for various types of events. ... Mount Shasta does not erupt at regular intervals, but its history suggests that it  ....

How a Mt. Shasta eruption might occur; mountain has potential to ...


Dec 17, 2011 ... How a Mt. Shasta eruption might occur; mountain has potential to blast hot ... said if Mt. Shasta ever does erupt, the risks depend largely on when the next ... what part of the mountain blows and the type of material it produces.

Mount Shasta - Crystalinks


Mount Shasta has long been sacred to the Native North American Indians of ... I visited Mount Shasta at a time that does not attract many tourists. ... Most have since been filled-in with andesite lava, pyroclastic flows, and talus from lava domes.

Mount Shasta - New World Encyclopedia


The Native American traditions and languages of Mount Shasta have been studied ... glacial valley on the volcano, although it does not presently contain a glacier. ... About two hundred years ago the last significant Shasta eruption came from this .... The types of climbs include mountaineering, rock & ice, and backpacking.

Mount Shasta Facts - California's 5th Highest Mountain - Climbing


Find out lots of interesting facts and Mount Shasta's geology, volcanism, history, ... volcanic episodes have continued to build the mountain with lava flows and dacite cones. .... of the significance of clouds in the film Close Encounters of the Third Kind. ... Defining the Sport of Mountaineering · Does Thin Air Kill Brain ...

GO 326/ES 767 Cascade volcanism - Emporia State University


Other lava types span the spectrum of composition from basalt, to dacite and ... Similar events have occurred at Mt. Shasta and other Cascade volcanoes in ...

Mount Shasta: The Medusa of Siskiyou County - Scientific American ...


Jul 1, 2013 ... It is a type of cone volcano that is built up layer by layer over subsequent eruptions. ... Mt. Shasta is considered an active volcano. its last eruption was in ... can have an appreciation for what nature does and how it behaves.

Volcano Facts and Types of Volcanoes - LiveScience


Feb 20, 2013 ... A volcano is a vent or fissure in Earth's crust through which lava, ash, rock and gases ... Mount St. Helens has several well-defined lava domes inside the crater. ... Mount Shasta, California: Last known eruption was in 1786.



The shape of a volcano is largely determined by the type of lava that has ... The more mafic the lava (the less silica in it), the lower the viscosity. ... Consequently, the viscosity increases in the remaining magma and it does not flow ... Mt. St. Helens, Mt. Ranier, Mt. Hood, and Mt. Shasta in the U.S. Pacific Northwest, Mt. Fuji in...

Helpful Resources

Learning more about Mt. Shasta in California


Studies by geologists show that Mount Shasta has erupted 10 or 11 times during the last 3,400 years and ... The type of eruption would most likely be explosive.

What type of magma does Mount Shasta have? - Ask.com


Mount Shasta's magma is composed of basalts and basaltic andesite. These two types of magma are very runny, forming large shield cones and steep, loose ...

USGS: Volcano Hazards Program CalVO Mount Shasta


May 23, 2012 ... Mt. Shasta is a majestic, steep-sided stratovolcano located about 97 ... In the last few millennia, smaller eruptions have broken out at the volcano's summit and from vents on its upper east flank. USGS scientists are working on constraining the age of the most recent eruption. ... Volcano type: Stratovolcano

Mount Shasta Volcano, California (Canada and USA (mainland ...


The last confirmed eruption of Mt Shasta happened in 1786 and was observed by ... Mt Shasta volcano has a complex summit that consists of four overlapping ...

Geologic Processes of Mount Shasta


Mount Shasta and its immediate surroundings are the products of several geological ... Episodes of volcanism have alternated with intervals of erosion during which ... the types of early-crystallized MINERALS (phenocrysts) they contain (Figure 5). ... processes -- fractionational crystallization, assimilation, and magma mixing ...