What volcano nearly brought down a 747?
GeologyMount GalunggungMount Galunggung around 110 miles (180 km) south-east of Jakarta, Indonesia, resulting in the failure of all four engines. What happens when a plane flies through volcanic ash? When volcanic ash, which is usually already very hot, enters a jet engine, it heats can melt and stick together as clumps of molten material. This
How do minerals get concentrated in the ground?
GeologyThere are three main igneous processes responsible for concentrating mineral resources: magmatic segregation, late stage crystallization, and hydrothermal fluids. Minerals with high metal concentration are often more dense and thus accumulate at the bottom of a magma body. Where are minerals concentrated in? Ore minerals tend to be concentrated in small, localized rock masses that
How many volcanoes are there in the state of California?
Geology2020 known volcanoes. While many of these are currently thought to be inactive, the United States Geological Survey (USGS) has identified seven volcanoes that exhibit potential signs of risk. These volcanoes are spread throughout the state, from the Oregon border down to San Diego. How many active volcanoes does California have? seven California volcanoes At
What are the 2 types of hydrothermal vents?
GeologyHydrothermal vents are often divided into two types: ‘black smokers’ and ‘white smokers’. What are the 3 types of hydrothermal vents? Ocean vents eject hot, often toxic, fluids and gases into the surrounding seawater. They often mark sites of tectonic activity, and create some of the most hostile habitats on Earth. Ocean vents are a
What is Hawaiian Blue Rock?
GeologyThe gray rock appears to have a tint of blue to it, and this is often called “blue rock” in Hawai`i. Contractors have other names for it, but they are not printable in a family newspaper. “Blue rock” is the bane of contractors, especially road builders and pipeline installers, because it is difficult to break.
When did Clear Lake volcano erupt?
GeologyThe Clear Lake Volcanics erupted during four periods of time beginning at about 2 Ma. There is a general decrease in age northward from 2 Ma in the south to about 10,000 years in the north. When was the last time Clear Lake Volcanic Field erupted? about 11,000 years ago The last eruption being about
What is the most widely used measurement for earthquakes?
GeologyEARTH SCIENCE/8.2/Rose/Measuring Earthquakes A B WHAT DOES THE MAGNITUDE MEASURE? the size of seismic waves or amount of energy released at the earthquake source WHAT IS THE MOST WIDELY USED MEASUREMENT FOR EARTHQUAKES? moment magnitude scale What is the most widely used measurement for earthquakes and why? An earthquake has one magnitude unit. The magnitude
How does plate tectonics work quizlet?
GeologyThe theory of plate tectonics suggests that Earth’s surface is divided into large plates of rigid rock. Each plate moves over Earth’s hot and semi-plastic mantle. Plate tectonics provides an explanation for the occurrence of earthquakes and volcanic eruptions. How do plate tectonics works? The theory of plate tectonics states that the Earth’s solid outer
What is the difference between basal slip and internal plastic flow?
GeologyBasal sliding and plastic flow. This process is called basal sliding. In addition to basal sliding, which slowly moves the glacier downslope as a unit, plastic flow causes glacial ice buried underneath more than about 50 meters to move like a slow‐moving, plastic stream. What’s the difference between basal slip and plastic flow? Plastic flow
How much lava comes out of Kilauea?
Geology1 billion cubic yardsmore than 1 billion cubic yards of lava during the eruption ― a figure that’s probably a little hard to visualize. To put it into perspective, Interstate 90 is the single-longest highway in the United States. Does lava build new land? Landforms created by lava include volcanoes, domes, and plateaus. New land