Mount Mazama was a stratovolcano in Klamath County, Oregon, until it destroyed itself. A stratovolcano is a volcano that has many layers. These layers are made of things such as pumice and hardened lava. The volcano was also a part of the Cascade Mountain Range. It is said that Mount Mazama started forming 420,000 years ago. The volcano started erupting more frequently and more violently 400,000 years ago, and stayed active for 70,000 years. Then one day 7,700 years ago, Mount Mazama had a huge eruption that ended by the whole mountain collapsing into itself and forming the basin of Crater Lake, which is 6.02 miles wide.
Before Mount Mazama erupted, an American Indian tribe called the Klamaths thought the volcano belonged to their god
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The groups was called the Mazamas. In a Native American language Mazama means “mountain goat.”
Many people studied Mount Mazama, including Howel Williams and Charles R. Bacon. Howel Williams is from the University of California, Berkeley. Charles R. Bacon is a USGS geologist who expanded and improved Williams’ work.
Mount Mazama’s final eruption started as if it was just another normal one. The ash and lava started coming out of a single vent on the northeast side of the volcano. The lava went 30 miles into the air and was carried by winds covering a large area in ash and tephra. So much magma erupted causing the vent to widen and the eruption column collapsed. As the eruption continued, circular cracks opened around the peak.
Activity continued to fill eruption columns and through the disburse vents. Deposits from these flows partially filled the valleys around Mount Mazama with 300 feet of pumice and ash. Because the magma chamber was nearly empty, most of the base collapsed into the magma chamber. After the volcano collapse a caldera 5 to 6 miles in diameter and .7 miles deep. After many steam eruptions and rain falls, water gathered in the caldera, forming a lake. That lake is now called Crater Lake and is known as the deepest lake in North
In the article, “Finding Your Everest” by Robert Medina, the Romeros reveal that they believe that parents cannot go too far to support their children’s dreams. For example, Mr. Romero claims that he is fully aware of the risks Jordan might face while climbing/mountaineering, yet he believes that Jordan isn’t being forced to keep going, wants to keep going, and is nowhere near the point where he’s mentally and physically exhausted. This shows that Mr. Romero believes that parents cannot go too far because he mentions that it’s Jordan’s call on whatever expedition they go on. Also, he believes that they’re not doing anything super crazy because he feels that his son is perfectly wired for the conditions of mountain climbing. The biggest hint
Mi’kmaq was the spelling of a tribe of Indians that had first contact with European explorers in the sixteenth and seventeenth century. Through the years, the name has been changed to what we know today as Mic Mac. The word Mi’kmaq derives from the word nikmak, which means “my kin-friends” or allies. The rich and descriptive Mi’kmaq language was a member of the Algonkin family. Although every Mi’kmaq can understand each other, the dialect varies between bands. For example, the Mi’kmaq spoken in Quebec differs from that in Nova Scotia. The Mi’kmaq tribe settled in southwestern New Foundland in 1630. They were the “first nation people” (Nova Scotia 1) of Nova Scotia and later also settled in New England. They are the dominant tribe in the Canadian Maritimes and are f Roman Catholic faith, (Nova Scotia 1; Wallis and Wallis14, 21-22; Sultzman 1).
Lassen Peak, also known as Mount Lassen, is the southernmost active volcano in the Cascade Range. It is part of the Cascade Volcanic Arc which is an arc that covers southwestern British Columbia to northern California. Located in the Shasta Cascade region of Northern California, Lassen rises 2,000 meters above the surrounding terrain and has a volume of 0.5 cubic miles, making it one of the largest lava domes on Earth. It was created on the destroyed northeastern side of now gone Mount Tehama, a stratovolcano that was at least 1,000 feet higher than Lassen Peak.
It has been discovered that Apaches in the late 1800s were reported to exist in four separate bands, or clusters of rancherias, although how far back in time the division occurs is unknown (Griffen 5). The native name for the easternmost band was the Chihene, or "red painted people"; they were also known as Victorio, Mangas Coloradas, and Loco Apaches after the Spanish names of important leaders. To the south and west were the Chokonen or "Rising Sun People". These people were often called Central Chiricahua, True Chiricahua, and Cochise Apaches. North and west of the Chokonen were the Bedonkohe, "In Front at the End People" sometimes called the Geronimo Apaches. The southernmost Chiricahua band was the Ndeinda, "enemy people". They were also called the Nedni and Nednai, Southern Chiricahua, Pinery, and Bronco Apaches (Cole 10). These names differ among some scholars, but the majority of them can agree consistently on at least four bands, even if the names are different.
Mount Tambora, located on the Island of Sumbawa, Indonesia is classified as a Stratovolcano. Also known as a composite volcano, Tambora is a tall conical volcano (cone like structure) where layers of the walls are built by hardened lava and volcanic ash. The term composite is used to describe the volcano due to the composite layered structure built from sequential outpourings of eruptive materials1. Among the most common types of volcanoes, Tambora also shares its destructive prowess with best-known volcanoes such as Krakota (1883) and Vesuvius (79 A.D). The Island of Sumbawa is located in the middle of the Lesser Sunda Islands chain (a group of islands in the southern Maritime Southeast Asia) and is in the province of West Nusa Tenggara3. A map of Mount Tambora is shown in Figure 1 to provide a better perspective of its location. Interestingly enough, Tambora forms its own peninsula on Sumbawa, known as the Sanggar Peninsula. In April of 1815, after years of dormancy, Mount Tambora erupted with great intensity, approximately 7 on the volcanic explosivity index, which is shown in Figure 2. It has been estimated that the eject volume of Tambora was 160 cubic kilometres, which represents the largest volcanic eruption in recorded history. The death toll has been projected to be at least 71,000 people, of who over 15% were killed directly from the eruption1. The remaining 75% have been thought to succumb to starvation and disease, as the eruptive fallout decimated the agricultural industry in the region. Following the eruption, a volcanic winter ensued. As sun become less abundant due to clouds of ash, crops and livestock perished. Please note that all definitions appearing in the footnotes are either taken from already referenced so...
Mauna Loa is Earth’s largest volcano and most massive mountain as it takes up nearly half of the flourishing landscape of the island of Hawai’i. This island is actually made up of five volcanoes, Kohala, Mauna Kea, Hualalai, Mauna Loa, and Kilauea, all in such close proximity that they fused together to form one whole island. Mauna Loa is located in the south central area of Hawai’i, in the Hawai’i Volcanoes National Park and its coordinates are 19°5' N, 155°6' W. It is 13,680 ft above sea level, but if one measures from its true base on the ocean floor, it is estimated to be 30,080 feet tall. Its name is quite fitting as it means “Tall Mountain”.
The Mohawk called themselves Ganiengehaka, or "people of the flint country." Their warriors, armed with flint arrows, were known to be overpowering; their enemies called them Mowak, meaning "man eaters." The name Oneida means "people of the standing stone," referring to a large rock that, according to legend, appeared wherever the people moved, to give them directions.
Wood and Kienle, 1990, Volcanoes of North America: United States and Canada: Cambridge University Press, 354 p., p. 158-160, Contribution by Patrick Pringle.
Maunaloa last erupted in 1938 and Kilauea has been erupting since January 3,1938. The Hawaii Volcanoes National Park was named a World Biosphere site by UNESCO in 1987. Kilauea is also called the world's only drive-in volcano.
First, one must know a little information about this volcano. Mount Shasta is located in Siskiyou County, California. This volcano is the second highest peak in the southern end of the Cascade Range and is still active, though not enough for people to notice. At 14,179 feet it is also the most voluminous stratovolcano located in the Cascade Volcanic Arc. The mountains complex shape is due to the four overlapping volcanic cones it consists of, including the most prominent, main summit, Shastina. The other cones include: Sargents Ridge cone, Misery Hill cone, and Hotlum cone. Sargents Ridge cone is the oldest of all the cones that make up the mountain. Though it is now dissected by a glacial valley, a portion of it can still be seen on the mountain. Misery Hill makes up a large part of the present mountain. the fourth cone, the Hotlum cone is formed from eruptive products and is located on the northeastern side of Mount Shasta. Three of the four major vents on the mountain are aligned with a north trending zone that passes through the mountains summit. This linear alignment parallels local faults, which suggests that the bedrock structure has influenced and partially controlled the dimensions in which Mount Shasta develops (Mie...
The eruption on Mount Saint Helens has a specific cause and comes with many effects. A multifold of people would say that the “mountain looked like the site of an atomic blast” (Bredeson 30). That is a very accurate depiction as it took great power to inflict as much damage as it did. The reason for this impressive amount of force is that when magma is built up with pressure and an earthquake hits, the pressure gets magnified and the volcano explodes (Lewis). This is exactly what happened inside Mount Saint Helens. Furthermore, it has been revealed that “The earthquake that triggered the explosion was a 5.2 on the Richter scale” (Gunn 559). The earthquake to the magma can be compared as a match to gasoline. Even though the earthquake was not huge, the scale of the eruption was much greater than that of the earthquake (Gunn 560). The earthquake was only the trigger that allowed for more devastating things to occur. Thirteen hundred feet of the volcano were lost in the explosion followed by landslides, mudslides, and lava flows...
Mount St. Helens is an active stratovalcano in Skamania County, Washington, in the Pacific Northwest region of the United States. It is located 96 miles south of Seattle and 53 miles northeast of Portland, Oregon. The mountain is part of the Cascade Range. It is most famous for a catastrophic eruption on May 18, 1980. That eruption was the most deadly and economically destructive volcanic eruption in the history of the United States. 57 people were killed, and 200 homes, 47 bridges, 15 miles (24 km) of railways and 185 miles (300 km) of highway were destroyed. The eruption blew the top of the mountain off, reducing its summit from 9,677 feet to 8,364 feet in elevation and replacing it with a mile-wide horeshoeshaped crater.
Stories about volcanoes are captivating. Myths come in different versions, but all of them are capable of capturing yours, and everybody’s imagination.
Volcanoes can be one of the most destructive forces on Earth. It is estimated that some
inferred for the reservoir (4). The magma ascent to the surface occurred through a conduit of possibly 70 to 100 m in diameter (5). A thermal model predicts that such a reservoir should contain a core of partially molten magma (6) that can be detected by high-resolution seismic tomography.