What type of plate boundary is Eyjafjallajokull?
GeologyIceland rests along the Mid Atlantic Ridge, a divergent tectonic plate boundary at the bottom of the Atlantic Ocean. It’s where the North American and Eurasian plates meet, and runs for 10,000 km (16,000 miles) along the ocean floor. What type of plate boundary is Eyjafjallajökull located on? Abstract. The Eyjafjallajökull volcano, one of the
What is the force of moving water?
GeologyHydraulic energy is the force created by moving water: rivers and tides, as well as ocean currents or waves. The hydraulic energy of rivers has long been harnessed by watermills. What’s the force of moving water? Key Concept: As gravity pulls water down a slope, the water’s potential energy changes to kinetic energy that can
Is high pressure convergent or divergent?
GeologySurface high pressure systems in the Northern Hemisphere have a clockwise rotation with wind turning slightly outward away from the highest pressure. This causes air to diverge, or move away, from the center of the high near the ground. Is diverging air high or low pressure? For example, an area of diverging air in the
What does a crystal quartz look like?
GeologyClear quartz may have small inclusions that look like a smudge in the crystal, but overall the crystal should be colorless and transparent. Inspect the crystal shape. Quartz crystals are generally hexagonal prisms that terminate on each end with a six-sided pyramid. How can you tell if a crystal is quartz? https://youtu.be/ First you have
What is the continental crust temperature?
GeologyOn average, the surface of the Earth’s crust experiences temperatures of about 14°C. However, the hottest temperature ever recorded was 70.7°C (159°F), which was taken in the Lut Desert of Iran as part of a global temperature survey conducted by scientists at NASA’s Earth Observatory. What is the temperature and pressure of the continental crust?
Did Mexico City have an earthquake today?
GeologyWhat city was the earthquake in Mexico today? MEXICO CITY — An earthquake struck southeast Mexico on Thursday, sending people fleeing into the streets. The U.S. Geological Survey gave a preliminary magnitude of 5.7 and said the epicenter was about 7 miles west-northwest of the town of Nopalapan in Veracruz, at a depth of 69
What is cleavage and fracture?
GeologyCleavage is the property of a mineral that allows it to break smoothly along specific internal planes (called cleavage planes) when the mineral is struck sharply with a hammer. Fracture is the property of a mineral breaking in a more or less random pattern with no smooth planar surfaces. How do you identify cleavage and
What are some fun facts about the Canadian Shield?
GeologyThis article is a plain language summary of the Canadian Shield. If you would like to learn more, please see our full article. The Canadian Shield is a gigantic rock formation. Canadian Shield is one of the oldest on Earth, with areas dating from 2.5 to 4.2 billion years. It is part of the rock or
What is the lowest base level for any stream?
Geologysea levelbase level the ultimate base level would be considered the ocean or a lake that a stream drains in to. What is the lowest base level possible for a stream? The lowest base level possible for any stream is sea level, the point at which the stream enters the ocean. 10. As stream channels
Can you determine the age of something like a fossil by examining its half life?
GeologyAlso called absolute dating, scientists use the decay of radioactive elements within the fossils or the rocks around the fossils to determine the age of the organism that was preserved. This technique relies on the property of half-life. How is half-life used to determine age? To determine the absolute age of this mineral sample, we