Posted on April 16, 2022 (Updated on July 9, 2025)
Why are there different types of volcanoes?
Regional SpecificsWhen magma erupts at the surface as lava, it can form different types of volcano depending on: the viscosity, or stickiness, of the magma. the amount of gas in the magma. the composition of the magma. How are the volcanoes different? There are three main types of volcano – composite or strato, shield and dome.
Posted on April 16, 2022 (Updated on July 9, 2025)
What are the six geographic provinces of Pennsylvania?
Regional SpecificsPennsylvania contains six physiographic provinces that reflect the geologic-topographic relationships.…From the northwest to the southeast, these include the following: Central Lowlands. Appalachian Plateaus. Ridge and Valley. New England. Piedmont. Atlantic Coastal Plain. What is the geographic region of Pennsylvania? Pennsylvania is classified as a Middle Atlantic state, along with New York, New Jersey, Delaware, and
Posted on April 16, 2022 (Updated on July 9, 2025)
What happened during the Neogene period?
Regional SpecificsDuring the Neogene Period, the polar ice thickened and took up more space in the ocean. The new mountains trapped water as snow and ice. All of this ice formation caused sea levels to drop even more. The drop in sea levels opened up land bridges between continents. What was the Neogene period known for?
Posted on April 16, 2022 (Updated on July 9, 2025)
Which state law prohibits the construction of human occupied structures within 50 feet of an active fault?
Regional SpecificsThe Alquist-Priolo Earthquake Fault Zoning Act prohibits the location of structures for human occupancy across the trace of an active fault; this prohibition is codified in various state codes and regulations. Why is it called Alquist Priolo? The Alquist-Priolo Earthquake Fault Zoning Act was signed into California law on December 22, 1972, to mitigate the
Posted on April 16, 2022 (Updated on July 9, 2025)
Where is olivine found in the world?
Regional SpecificsTypical Location Olivine is often found in dark-colored igneous rocks found in the surface of the Earth. These rocks are often located in tectonic plates and divergent plate boundaries. Olivine has a high crystallization temperature which makes it one of the first mineralize to crystallize from the Earth’s heat. Is olivine rare on Earth? Olivine
Posted on April 16, 2022 (Updated on July 9, 2025)
What is hypocenter in earthquake?
Regional SpecificsAn earthquake’s hypocenter is defined as the temporal and spatial coordinates where seismic waves are first generated. What is the difference between a hypocenter and earthquake? The epicenter is the point on Earth’s surface directly above where an earthquake occurs along a fault. The hypocenter is the actual point at which the earthquake occurs along