on April 2, 2022
What is petrification Permineralization?
Regional Specificspermineralization: form of fossilization in which minerals are deposited in the pores of bone and similar hard animal parts. petrification: process by which organic material is converted into stone through the replacement of the original material and the filling of the original pore spaces with minerals. What is the difference between permineralization and petrification? One
on April 2, 2022
Which physical layers correspond to which compositional layers?
Regional SpecificsThe physical layers exactly match the compositional layers. The crust is the only compositional layer not included in the physical layers. The physical layers of the inner core and outer core form a single compositional layer. The physical layer of the asthenosphere includes the compositional layer of the crust. What are the 3 main compositional
on April 2, 2022
What is the definition of divergent boundaries?
Regional SpecificsWhat is the meaning divergent boundary? Divergent boundaries — where new crust is generated as the plates pull away from each other. Convergent boundaries — where crust is destroyed as one plate dives under another. Transform boundaries — where crust is neither produced nor destroyed as the plates slide horizontally past each other. What’s a
on April 2, 2022
What is meant by rock forming minerals?
Regional Specificsrock-forming mineral, any mineral that forms igneous, sedimentary, or metamorphic rocks and that typically, or solely, forms as an intimate part of rock-making processes. How do you identify rock forming minerals? Properties that help geologists identify a mineral in a rock are: color, hardness, luster, crystal forms, density, and cleavage. Crystal form, cleavage, and hardness
on April 2, 2022
When was the Paleocene epoch?
Regional Specificsbetween 66 million and 56 million years agoPaleocene Epoch, also spelled Palaeocene Epoch, first major worldwide division of rocks and time of the PaleogenePaleogenePaleogene is Greek meaning “ancient-born” and includes the Paleocene (Palaeocene) Epoch (66 million to 56 million years ago), the Eocene Epoch (56 million to 33.9 million years ago), and the Oligocene Epoch
on April 2, 2022
What is meant by principle of superposition?
Regional SpecificsThe superposition principle states that when two or more waves overlap in space, the resultant disturbance is equal to the algebraic sum of the individual disturbances. What’s the meaning of principle of superposition? law of superposition, a major principle of stratigraphy stating that within a sequence of layers of sedimentary rock, the oldest layer is