Volcanoes And Other Igneous Activity (GEO 100) Flashcards

REVIEW MODULE. QUESTIONS: 25 expand all collapse all attempts i. 1. Which one of the following statements concerning volcanic blocks and bombs is CORRECT ANSWER: Melting temperatures drop because the pressure is lowered. see more 6. Which region has the greatest concentration of...1. INDONESIA has the highest number of active volcanoes in the world and is one of the places in the world that are located within the Pacific Ring of Fire. There are several top 10 volcanic activity lists and the names tend to get shuffled on which volcanoes are the most active. Here is just one example.Some questions will include multiple choice options to show you the options involved and other questions will just have the questions and corrects answers.Volcanic eruptions in any corner of the planet make the news - as seen with column inches devoted to this week's explosion of Taal, 40 miles south of Manila, Philippines. The eruption has spewed a massive cloud of ash into the sky and led to the evacuation of thousands of residents and suspension......Scientists have found the continent to be host to the greatest concentration of volcanoes on "The big question is: how active are these volcanoes? That is something we need to determine as It is currently under pressure from ice caps on top, but like a rubber duck pushed down in water, it...

Where are the most active volcanoes located? - Quora

Includes material from the fields of geology, oceanography, meteorology and astronomy through which we examine the physical laws and natural processes that have helped to shape and change Which region has the greatest concentration of currently active volcanoes? the circum-Pacific area. 53.List of active volcanoes includes volcanoes which are erupting, or have erupted in modern times. Many volcanos have erupted dozens of times in the past few thousand years, but are not erupting at this moment.There has been news about volcanic eruptions from all over the planet. India's only volcano is dynamic The volcano is 3,329 meters tall which makes is the biggest active volcano in Europe. In a shocking event, this month, Indonesia's Mount Sinabung in north Sumatra region erupted 7 times...Indonesia has 147 volcanoes, 76 of which are still active making it the world's most active volcano country. The country consists of a chain of more than 1. Most of the active volcanoes in Indonesia belong to the 3,000-kilometer stretch of the Sunda Volcanic Arc.

Which Region Has The Greatest Concentration Of Currently Active...

Volcan de Colima has the highest elevation of the volcanoes on this list, and is located in Jalisco. Getty/DJ Colby. This volcano is in the Andes mountain range in Chile and is one of the most active volcanoes in the region. Despite its activity, at its base is a ski resort where visitors can hit the slopes.The recent (geologically) volcanic activity in Yellowstone National Park is _.35. The Icelandic volcanoes are related to plate tectonics Which of the following best describes the bedrock in the Sierra Nevada Mountains in California?47. Most of the active volcanoes on Earth are located...Indonesia has the highest number of active volcanoes in the world and is one of the places in the world that are located within the Pacific Ring of Fire. Chile has the second most active string of volcanoes, only surpassed by Indonesia. In this country, we find Llaima and Villarica, two of the most...Vital volcanoes are Mt Fuji in Japan, Mt. Saint Helens and Mt. Rainier in the American North West, Krakatoa in Indonesia, Mauna Loa in Hawaii, Galeras in Colombia and Sangay in Ecuador. These volcanoes are well known and some those could be very dangerous because of their activeness, icy...37) Which region has the greatest concentration of currently active volcanoes? 7) The active Hawaiian volcanoes are situated directly above a major boundary between two of theEarth's largest tectonic plates.

QuestionAnswer In 1980, ________ was once the first Cascade Range volcano to erupt since Mt. Lassen in 1915-16. Mt. St. HelensWhich kind of basaltic lava move has a fairly easy, unfragmented, ropy floor? pahoehoe________ is a major dissolved risky constituent in both magmas and volcanic gases. WaterVolcanic bombs originate ________. as erupted magma blobs that partially congeal before falling to the ground________ magma is the maximum plentiful sort erupted at oceanic spreading centers. BasalticThe 1991 Pinatubo eruption in the Philippines brought about brilliantly coloured sunrises and sunsets to be noticed for the following couple of years. What brought about this phenomenon? Sulfur dioxide and other erupted gases shaped aerosols in the stratosphere.The ________ ocean basin is rimmed through the most subduction zones. PacificWhich of the following elements lend a hand resolve whether or not a volcanic eruption shall be violent or moderately quiescent? All of those ( quantity of dissolved gasoline in the magma, temperature of the magma, composition of the magma)Which of the following is associated with deep mantle hot spots? the volcanoes of Hawaii and Quaternary task in Yellowstone National ParkCinder cones ________. All of those (have very steep slopes, are most often less than three hundred meters top, consist in large part of pyroclastics)The most violent volcanic activity is associated with ________. composite conesThe Columbia Plateau in the northwestern United States is an excellent example of ________. flood basaltsKilauea is an example of a ________. shield volcano________ are typically the most plentiful gases emitted throughout basaltic volcanism. water and carbon dioxideParicutin is an example of a ________. cinder coneMount Pelée on Martinique is an example of a ________. composite volcanoMassive, gently sloping volcanoes constructed of successive, basaltic lava flows defend volcanoesLarge, relatively steep-sided cones composed of lavas and pyroclastic layers composite/stratovolcanoesSmall basaltic cones built throughout one brief, eruptive episode cinder conesThe volcanoes of southwestern Alaska and the Aleutian Islands composite/stratovolcanoesThe big volcanoes of Hawaii defend volcanoesWhich commentary about the May, 1980, eruption of Mount St. Helens is FALSE? During the eruptive length, the mountain top used to be considerably built up by way of new lava flows and pyroclastic debris.________ generally tend to extend the explosive possible of a magma body beneath a volcano. High viscosity and dissolved fuelWhich sort of basaltic lava circulate has its surface lined with sharp-edged, angular blocks and rubble? aaWhich one of the following statements relating to volcanic blocks and bombs is TRUE? Bombs are ejected as magma lumps; blocks are ejected as solid fragments. ________ destroyed the city of St. Pierre, Martinique, in 1902 A nueé ardenteWhich one of the following statements concerning cinder cones is FALSE? The cinders and different pyroclastic debris are consolidated into welded tuff.Spreading heart volcanism maximum typically produces rocks which might be ________. basaltic in compositionWhich kind of eruptive job is perhaps to be extremely explosive? eruptions of large, continental margin, composite cones or stratovolcanoes Magma has a tendency to upward thrust towards Earth's surface basically as a result of ________. rocks turn into much less dense after they meltWhich sort of volcanism is standard of mid-oceanic ridge systems? submarine; basaltic lava flowsKilauea and Mauna Loa are ________. basaltic defend volcanoesMount St. Helens is ________. an explosive stratovolcanoThe 1943 eruption of Paricutin in Mexico was once characterized via ________. cinder cone building and basaltic lavaThe moderate composition of rocks comprising a big composite cone or stratovolcano is very similar to a(n) ________ magma. andesiticA ________ volcano is an excessively huge, gently sloping mound composed basically of basaltic lava flows. protectWhich of the following very best describes Shiprock, a well-known volcanic characteristic in New Mexico? the eroded stays of a volcanic pipe and radiating dikesWhich region has the greatest concentration of currently active volcanoes? the circum-Pacific spaceThe recent (geologically) volcanic task in Yellowstone National Park is ________. associated with intraplate, sizzling spot volcanismThe Icelandic volcanoes are associated with plate tectonics because ________. they lie on a spreading center the place two plates are shifting apartWhich one of the following best possible describes volcanism in the Cascade Range, northwestern United States? associated with plate subductionWhich of the following statements highest describes the big Hawaiian volcanoes? are located in the internal of a large, Pacific plate above a hot spot deep in the mantle Which of the following is NOT regarded as pyroclastic particles? pahoehoeWhat volcanic occasions shaped Crater Lake, Oregon? When did they take place? Caldera cave in followed primary ash and pyroclastic-flow eruptions 6000 years in the past.Which one of the following presentations the proper order (left to proper) of reducing magma viscosity? rhyolite, andesite, basaltThe greatest igneous intrusive body is known as a ________. batholithWhat is the greatest known volcano in the Solar System? Olympus Mons, MarsA ________ is the largest discordant frame of intrusive, igneous rock. batholithA ________ is an intrusive, igneous rock frame that is tabular and concordant. sillA ________ is a close to surface, intrusive igneous rock body that results from local inflation of a horizontal sill. laccolithWhich of the following easiest describes the bedrock in the Sierra Nevada Mountains in California? granite; batholiths Most of the active volcanoes on Earth are positioned in a belt known as the ________. Ring of FireDissolved gases may include up to a few p.c by way of weight of a magma. TAsh and lapilli are other sized pyroclastic particles. TThe viscosities of magmas build up with increasing percentages of silica. T The eruptions of the Hawaiian volcanoes could also be described as explosive compared to the 1980 Mount St. Helens eruption. FPowerful, explosive, volcanic eruptions can lead to climatic cooling for millions of years following the eruption. FMagma generation at depth nearly at all times involves partial melting, not entire melting of the supply rock. TThe active Hawaiian volcanoes are located immediately above a significant boundary between two of the Earth's greatest tectonic plates. FMost basaltic magmas are believed to form by means of partial melting of granite in the lower crust and upper mantle. FBasaltic lavas are in most cases hotter and extra viscous than andesite lavas. FSmall amounts of water can decrease partial melting temperatures in silicate rocks. TRepeated eruptions of rather fluid lava from fissures can sooner or later cause a space to be covered by means of flood basalts. TIn normal, cinder cones are much higher than shield volcanoes. FCrater Lake in Oregon in fact occupies a caldera, now not a crater. TVents that emit most effective heated volcanic gases and water are referred to as fumaroles. TAa flows are most often thinner and have smoother surfaces than pahoehoe flows. FBasalt is the most not unusual magma erupted alongside oceanic rift programs. T