Is there a fault line in Virginia?
GeologyMost earthquakes in Virginia are not associated with a known fault, but occur within three distinct seismic zones: the Eastern Tennessee Seismic Zone (ETSZ) includes Lee County in far southwestern Virginia; the Giles County Seismic Zone (GCSZ) extends through the New River Valley; and the Central Virginia Seismic Zone … Is Virginia near a fault
What type of metamorphic rock is anthracite?
GeologyAnthracite Coal is a black, shiny metamorphic rock. Coal forms from plant material and has no grains. Anthracite is the rarest and most expensive form of coal. What type of rock is anthracite? Anthracite Coal is a black, shiny metamorphic rock. Coal forms from plant material and has no grains. Anthracite is the rarest and
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