Category: Geology

What is the population of the Columbia Plateau?

Do people live in the Columbia Plateau? Population centers are widely dispersed in the ecoregion with only one metropolitan area, Boise, Idaho, exceeding 100,000 in population. What is the largest city in the Columbia Plateau? Major Cities The city of Walla Walla is located in the heart of the Columbia Plateau. What is Columbia Plateau

Do Rocks Have streak?

Streak Plates A mineral’s streak is the color it has when ground to a powder. Some minerals that occur in a range of colors always have the same streak. As a result, streak is considered a more stable indicator than the color of the solid rock. What does it mean when a rock has a

How do volcanoes affect the 4 spheres?

Volcanoes affect the spheres: Biosphere- Plant and animal population, soil fertility, damage human property. Atmosphere-release ash and gases, affects climate and weather conditions. Hydrosphere- warmer and more acidic oceans, melting ice bodies, acid rain and soil. How does a volcano affect the spheres? Volcanoes (events of the geosphere) release a large amount of carbon dioxide

What fault runs through Searles Valley?

The Ash Hill fault (mostly right-lateral strike slip) transfers strain into the northern con- tinuation of the Searles Valley zone, via a complex array of hanging-wall normal and strike-slip faults. What fault line is Searles Valley on? Garlock Fault The fault continues on to the Garlock Fault about 15 miles southeast of Ridgecrest, just past

What is the Protolith of amphibolite?

Amphibolite is a metamorphosed mafic igneous rock (basalt, gabbro) although it is usually difficult to determine the protolith because original features are often obliterated. Basalt is composed of pyroxene + plagioclase. What is the parent rock of amphibolite? Amphibolite Type Metamorphic Rock Metamorphic Type Regional Metamorphic Grade Middle Grade (Middle P – Middle T) Parent

What is the relative age relationship of faults?

The principle of cross-cutting relationships states that a fault or intrusion is younger than the rocks that it cuts through. The fault labeled ‘E’ cuts through all three sedimentary rock layers (A, B, and C) and also cuts through the intrusion (D). So the fault must be the youngest formation that is seen. What is

How much damage did Mt Pinatubo cause?

The eruption cost $700 million in damage, $100 million of which was damage to 16 aircraft flying at the time of the eruption and $250 million in property with the rest a combination of agriculture, forestry and land. How destructive was Mount Pinatubo? Nearly every bridge within 30 km (19 mi) of Mount Pinatubo was

What are trace fossils used for?

Trace fossils provide us with indirect evidence of life in the past, such as the footprints, tracks, burrows, borings, and feces left behind by animals, rather than the preserved remains of the body of the actual animal itself. What can trace fossils tell us about how an animal lived? Trace fossils preserve the moment of

What does depth mean in earthquake?

In seismology, the depth of focus or focal depth refers to the depth at which an earthquake occurs. Are shallow or deep earthquakes worse? Shallow quakes generally tend to be more damaging than deeper quakes. Seismic waves from deep quakes have to travel farther to the surface, losing energy along the way. Is 10km a

Where is the safest place to live in California from earthquakes?

SacramentoSacramento Is the Safest Place to Live in California from Earthquakes. BestPlaces ranked Sacramento as the safest place to live in California from natural disasters. Where should you live to avoid wildfires? The Best Places to Live In and Avoid Fires in NorCal Ukiah  Endowed with ecological wealth in the form of the mild

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