Question 1
A geologist is studying sediments on land that were originally deep sea sediments. She finds the minerals zircon and garnet in the sediments, which could only come from a continental region. These sediments must be ________.
◦ terrigenous sediment
◦ biogenous sediment
◦ hydrogenous sediment
◦ both terrigenous and biogenous sediment
Question 2
Much of the Gulf of Mexico is underlain by thick layers of salt that formed in a small ocean basin like the Red Sea, which formed from sea floor spreading. This salt is a good example of ________.
◦ terrigenous sediment
◦ biogenous sediment
◦ hydrogenous sediment
◦ both terrigenous and biogenous sediment