Posted on April 16, 2022 (Updated on July 9, 2025)
What is the difference between a rockslide and a slump?
Regional SpecificsA slump can form when the base of a mountain slope or hillside is eroded away by water or cut away during construction. A rockslide is the sliding of rock material down a mountain. How is a slump different from a rockfall? As nouns the difference between rockfall and slumping is that rockfall is a
Posted on April 16, 2022 (Updated on July 9, 2025)
Why are transitional fossils important?
Regional SpecificsA transitional fossil may be defined as a fossil which exhibits traits common to both ancestral and derived groups. This is especially important when groups are sharply differentiated. They can show how a species might adapt to survive their new conditions. Why are transitional fossils important in evolution? Transitional fossils help scientists bridge gaps in
Posted on April 16, 2022 (Updated on July 9, 2025)
What can fossils tell us about extinct animals?
Regional SpecificsSome animals and plant are only known to us as fossils. By studying the fossil record we can tell how long life has existed on Earth, and how different plants and animals are related to each other. Often we can work out how and where they lived, and use this information to find out about
Posted on April 16, 2022 (Updated on July 9, 2025)
What is a biozone in geology?
Regional Specificsbiozone, stratigraphic unit consisting of all the strata containing a particular fossil and, hence, deposited during its existence. The extent of the unit in a particular place, on the local stratigraphic range of the fossil plant or animal involved, is called a teilzone. What is the purpose of biozones? Biostratigraphy is the branch of stratigraphy
Posted on April 16, 2022 (Updated on July 9, 2025)
What forms when iron rich minerals in cooling lava align with the direction of Earth’s magnetic field?
Regional SpecificsWhat form when iron rich minerals in cooling lava align with the direction of Earth’s magnetic field? Iron rich minerals in the lava are magnetic. As the lava cools to form basalt, these minerals align with the direction of Earth’s magnetic field. Once hardened the basalt provides a permanent record of Earth’s magnetic field at
Posted on April 16, 2022 (Updated on July 9, 2025)
Is Lassen volcano still active?
Regional SpecificsA: No one can say for sure or when. However, Lassen Peak is considered active because it last erupted about 100 years ago (read more). Geologically recent volcanic activity in an area is the best guide to forecasting future eruptions. What would happen if Lassen Peak erupted? When Lassen erupted from 1914 to 1917, very