What kinds of Paleogene and Neogene deposits are found in North America’s continental interior? What was the
source of these sediments? What will be an ideal response?
Sediments were deposited in marine and transitional environments. The only local sediment
source within the Great Plains was the Black Hills in South Dakota. Marine deposition
occurred in this area during the Cretaceous, followed by the origin of terrestrial deposits.
Terrestrial deposits indicate semitropical forests, giving way to grasslands. There are also
incidents of igneous activity.
You might also like to view...
Which of the following locations would contribute to midlatitude cyclogenesis?
A) Where air converges and accelerates as it passes from an upper air ridge to an upper air trough B) Where air spreads out and accelerates as it passes from an upper air ridge to an upper air trough C) Where air converges and slows as it passes from an upper air trough to an upper air ridge principles D) Where air spreads out and accelerates as it passes from an upper air trough to an upper air ridge
The largest concentration of condensation nuclei are usually observed near the earth's surface. Indicate whether the statement is true or false
How could the Himalayan Mountains be getting taller?
What will be an ideal response?
Much of the Earth's atmosphere was originally outgassed from volcanoes
Indicate whether the statement is true or false