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- Sammy how do intrusion and extrusion play a role in determining the relative age of rocks?
- Ohhhhhhh about this one... Rock layers below an extrusion are always older than the extrusion. The extrusion is the youngest layer.An intrusion is always younger than the rock layers around and beneath it.
- Some problems are that each rock layer above is older than the one above it.
- "Law of Superstition" is an axiom that forms the bases for geology, archeology, and more other fields of geological stratigraphy!
- Erosion is the action of surface processes that removes soil, rock, or dissolved material from one location on the Earth's crust, and then transports it to another location. Right? Ugh I can't think straight.
- Hm, an Unconformity is a surface separating two rock masses or strata of different ages. I think. I am not sure.
- Now one thing I surely remember is the definition of plate tectonics. Plate tectonics is a scientific theory describing the large-scale motion of the plates making up Earth's lithosphere
- Deposition is the geological process in which sediments, soil and rocks are added to a landform or landmass.
- Sammmmyyyy, Alex called and he is asking, "How are index fossils used to date rocks"? What should I tell him?
- Love you you are the best bestie best friend that I could ever have Sammy!😄 😇
- OK!
- Tell him Index fossils are fossils of organisms that lived during a short period of time. Even though rock layers are of different regions, index fossils indicates that the layers are close in age.
- Same Via! Love you bestie!😁 👯♀️
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