on April 14, 2022
What is the oldest volcano on Earth?
Geology1 What Is The Oldest Active Volcano On Earth??… Yellowstone Caldera Age of rock 2,100,000–70,000 years Mountain type Caldera and supervolcano Volcanic field Yellowstone Plateau Where is the oldest active volcano on earth? Mt. Etna in Italy is sometimes called the oldest active volcano because it has the longest historic record of eruptions. It has
on April 14, 2022
How did Kilauea affect the environment?
GeologyHowever, the Kilauea Volcano and other volcanic features at the park emit noxious gases that can pose serious human and ecosystem health concerns. Kilauea’s nearly continuous eruption emits sulfur dioxide (SO2) gas and results in volcanic air pollution downwind of the volcano. What damage did the Kilauea volcano cause? Kilauea, located on Hawaii’s Big Island,
on April 14, 2022
What does Protolith mean?
GeologyWhat is the meaning of protolith? « Back to Glossary Index. The rocks that existed before the changes that lead to a metamorphic rock, i.e. what rock would exist if the metamorphism was reversed. parent rock, parent rocks. Does protolith mean parent rock? In the context of metamorphic rocks, the parent rock (or protolith) is
on April 14, 2022
What are the five types of volcanic eruptions?
GeologyTypes of eruptions Hydrothermal eruption. An eruption driven by the heat in a hydrothermal systems. … Phreatic eruption. An eruption driven by the heat from magma interacting with water. … Phreatomagmatic eruption. … Lava. … Strombolian and Hawaiian eruptions. … Vulcanian eruptions. … Subplinian and Plinian eruptions. What are the 5 biggest volcanic eruptions? 5
on April 14, 2022
What was the first era of Earth?
GeologyPrecambrian Time started at the beginning of the Earth 4.6 billion years ago. For billions of years, there was no life on the planet. It wasn’t until the end of Precambrian Time that single-celled organisms came into existence. What is the first era of Earth’s history? Precambrian time includes 80% of the earth’s history. Older
on April 14, 2022
How do they quarry granite?
GeologyHow is a granite mined? Granite Is Mined from a Quarry Granite slabs are obtained from special sites that are known as quarries. Some of the most prolific quarries in the world are in far flung locations, such as Italy and Brazil. Using powerful machines, a mining company mines and blasts raw granite out of
on April 14, 2022
Is there a tsunami warning in Oregon?
GeologyIs there a current tsunami warning in Oregon? This is a Tsunami Information Statement for Alaska, British Columbia, Washington, Oregon, and California. There is No Tsunami Warning, Advisory, Watch, or Threat in effect. Did a tsunami hit Oregon? Alaska 1964 Earthquake and Tsunami The earthquake generated a tsunami that killed 124 people (5 in Oregon)
on April 14, 2022
Why are the Ammonites excellent index fossils?
GeologyAmmonites make excellent guide fossils for stratigraphy because: they evolved rapidly so that each ammonite species has a relatively short life span. they are found in many types of marine sedimentary rocks. they are relatively common and reasonably easy to identify. Why are ammonites useful as index fossils? Ammonoids are important index fossils because of
on April 14, 2022
What are the physical and compositional layers of the earth?
GeologyThere are three chemical layers; the crust, the mantle and core and five recognised physical layers; the lithosphere, asthenosphere, mesosphere, outer core and inner core. Chemically, the Earth is divided into three layers. What are Earth’s physical layers and compositional layers and how are they related? The Earth has different compositional and mechanical layers. Compositional
on April 14, 2022
What if you fell through the earth?
GeologyWith such immense speed, you completely overshoot earth’s center. As you travel through the far end of the hole, gravity is now in the opposite direction and slows you down. You are slowed down to zero speed just as you emerge from the hole on the other side of the world. What happens if you