Question

Of the following sediments, which one(s) is/are considered hydrogenous? Choose all that apply.

A. Manganese Nodules
B. Ferro-Manganese Crusts
C. Phosphorite Sediments
D. Terrigenous Sediments
E. Biogenous Sediments

Answer 1

Manganese Nodules, Ferro-Manganese Crusts, and Phosphorite Sediments are considered hydrogenous sediments.

Step-by-step explanation:

Of the sediments listed, the hydrogenous sediments are Manganese Nodules, Ferro-Manganese Crusts, and Phosphorite Sediments.

Manganese Nodules are hydrogenous sediments made up of manganese and other metals that precipitate out of seawater over long periods of time. They are found on the ocean floor and have a small, round shape.

Ferro-Manganese Crusts are another type of hydrogenous sediment that forms on the surface of older rocks on the ocean floor. They are made up of iron and manganese oxides and can be several centimeters thick.

Phosphorite Sediments are hydrogenous sediments that contain high levels of phosphorous. They form in shallow marine environments and are often associated with areas of upwelling, where nutrients are brought to the surface.