Stratigraphic correlation
Often they use the type of fossils or animals they find in the rocks to determine what age the rocks were in. Consider the late cretacous period, I just got back from a trip in Chaco Cultural Historic Park in New Mexico. I was doing my own geologic research there and the rocks had plenty of striations but when I looked in the rocks and saw shrimp, sponges, and aquatic plant fossils. You think in what era was this geologic area covered by water and would contain these types of animals, probably the Cretacous era because most the mid US was covered by water and a vast sea at this time.
Or Geologists take rocks back to a lab and do Radioactive Isotopic Decay and try to measure the age of the rock.
Stratigraphic matching
Stratigraphic correlation
Stratigraphic correlation.
Stacking?
Correlating rock layers is comparing two rock layers to each other. I hope that this helps :) Actually its the matching up of rocks of the same age from place to place is called correlation of the rock layers. I hope that this helps :)
Picking up sediment and moving it to another area is known as sediment transport.
Subduction Zone
A large deposit of rock formed over a arge area
The environment changed suddenly from a shallow ocean setting to a river system.
mutagenesis occurs
Correlating rock layers is comparing two rock layers to each other. I hope that this helps :) Actually its the matching up of rocks of the same age from place to place is called correlation of the rock layers. I hope that this helps :)
they are called layers
removed from an area
A protectorate or a colony.
- "crossing-over"
The dermis and epidermis are two parts of what is called true skin. There is another layer underneath the dermis but it is NOT part of the skin. It is called the hypodermis.The epidermis is further divided into four other layers:stratum basale, stratum spinosium, stratum granulosum, and stratum corneum (top most). The dermis is further divided into two layers, the superficial area adjacent to the epidermis called the papillary region and a deep thicker area known as the reticular dermis.
The area of crystal growth usually takes place on the outermost layers of crystal faces.
TERRITORY
The layers of soil in an area are the topsoil, subsoil, weathered rock and bedrock.
mutagenesis occurs
plateau