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Author Question: Why is manganese not mined on the seabed given that there are abundant manganese nodules in some ... (Read 66 times)

karen

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on: Feb 28, 2020

Question 1

In the present day, what is the most valuable non-living commodity obtained from sea floor?
◦ oil and gas
◦ gas hydrate
◦ gold
◦ sand and gravel

Question 2

Why is manganese not mined on the seabed given that there are abundant manganese nodules in some parts of the ocean floor?
◦ The manganese market is held by a global cartel who prevent the material from being mined.
◦ The manganese is too difficult to extract from the nodules; a new technology is needed.
◦ It is not economical to mine manganese nodules at present-day world prices for manganese and associated metals in nodules.
◦ It is impossible to extract the nodules from the seafloor with present-day technology.
Earth Science ¦ Tarbuck, Lutgens, Tasa ¦ 15th Edition
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Marked as best answer by karen on Feb 28, 2020

djofnc

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Reply #1 on: Feb 28, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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karen

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Reply 2 on: Feb 28, 2020
Wow, this really help

xiaomengxian

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Reply 3 on: Yesterday
Gracias!

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