Question

Of the following sediments, which one(s) is/are considered hydrogenous?

A. tests of foraminifers
B. radiolarian ooze
C. abyssal clay
D. coatings of metal sulfides near black smokers
E. black volcanic beach sand manganese nodules

Answer 1

The sediments considered hydrogenous are coatings of metal sulfides near black smokers and black volcanic beach sand manganese nodules. So, the correct answer is option e.

Step-by-step explanation:

Of the sediments listed, the hydrogenous sediments are coatings of metal sulfides near black smokers and black volcanic beach sand manganese nodules. Hydrogenous sediments form from chemical reactions that occur in seawater and are typically composed of minerals that precipitate out of the water.

Coatings of metal sulfides near black smokers form as a result of hydrothermal activity, while black volcanic beach sand manganese nodules form as a result of chemical reactions in volcanic environments. So, the correct answer is option e.