Question

What can you infer about the ocean environment from a core sample composed of the following layers:

siliceous ooze (youngest layer)
calcareous ooze
basalt rock (oldest layer)

A. The core was collected from a region where the seafloor is shallower than the calcite compensation depth (CCD).
B. The core was collected beneath a region of low-productivity at a depth greater than the calcite compensation depth (CCD).
C. The core was collected from the mid-ocean ridge in water shallower than 4,000 meters.
D. The core was collected in a region of high surface productivity in water deeper than 4,500 meters.
E. The core was collected in a warm-water region in water deeper than 4,500 meters.

Answer 1

The core sample composed of siliceous ooze, calcareous ooze, and basalt rock suggests that it was collected in a region of high biological productivity and volcanic activity, such as a mid-ocean ridge.

Step-by-step explanation:

The presence of siliceous ooze and calcareous ooze in the core sample suggests that it was collected in a region of the ocean with high biological productivity. Siliceous ooze is composed mainly of the silica remains of diatoms, while calcareous ooze is composed of the calcium carbonate shells of marine organisms. These types of sediments are typically found in areas where there is a high input of nutrients and where there is enough sunlight for photosynthesis to occur. As for the presence of basalt rock, it indicates that the core was collected in a region associated with volcanic activity, such as a mid-ocean ridge.