Question

multiple choice question
pelagic sedimentation rates are much lower than neritic sedimentation rates and are, on average, ______ per 1000 years.

0.5 to 1.0 cm
500 cm
50 cm

Explanation:

Pelagic sedimentation occurs in the open ocean (pelagic zone) and has much lower rates than neritic (near - shore) sedimentation. Neritic sedimentation can be relatively high (e.g., due to more sediment sources like river inputs, coastal erosion), while pelagic sedimentation, being far from major sediment sources, has an average rate of 0.5 to 1.0 cm per 1000 years. The other options (500 cm and 50 cm) are too high for pelagic sedimentation rates.

Answer:

A. 0.5 to 1.0 cm