Question 1
Unconformities that represent a break in the geologic record of deposition are geologically significant ________.
◦ they represent a period of erosion in the region
◦ they give an indication of sea level rise within an ocean basin
◦ they cannot be mapped
◦ the fossils found in the unconformities can be used to correlate global time period
Question 2
If you observe an angular unconformity, you would infer that the region had experienced ________.
◦ uplift and tilting of sedimentary units that exposes them to erosion over a period of time with subsequent renewed deposition
◦ deposition in shallow water, uplift or lowering of sea level enough to expose the rocks to erosion and non-deposition for a period of time, and subsequent resubmergence of the remaining sedimentary units where they experience new deposition
◦ deposition of sedimentary layers on crystalline igneous or metamorphic rocks that are exposed at the surface of the earth
◦ intrusion of igneous rocks into a depositional setting, forcing the sedimentary layers upward and possibly deforming them, followed by subsidence of the remaining sedimentary layers and renewed deposition
The thick bark of the cork oak of the Mediterranean region protects the tree from fire.
Conservation of Angular Momentum
Flanked region
cI–Cro interactions in the ORPRM region
One pathway of primary succession in Alaska’s Glacier Bay region.
Human beta-globin–complex locus control region