What are Abiotic Resources?
Abiotic resources
- Abiotic resources are non-living resources
- In the ocean, the main abiotic resources are oil, gas and minerals
Oil and gas
- The ocean houses tonnes of oil and gas, most of which is entirely untouched
- Oil and gas can be found under the continental shelf
- The Persian Gulf houses over ⅔ of the world’s oil reserves
- Offshore drilling pumps oil and gas to the surface from deeper ocean reserves
- Infrastructure like rigs and pipelines are vital for collecting and transporting oil and gas
The process of oil and gas extraction from the ocean
The process of oil and gas extraction from the ocean
Minerals
- Oceans house all sorts of minerals in different layers of the ocean
- Gold, copper, lead, silver, zinc and even diamonds are found on the ocean floor. They lie in the sediments transported by wind, ocean currents and even melted icebergs
- Sulphur deposits can be found in deep rift valleys or ocean ridges
- Many minerals wash into oceans from the land, so they can be found near the coastline
- Some are much further away. Mineral-rich (like iron or cobalt) nodules cover the abyssal plain
- Deep-sea dredging/vacuuming extracts these minerals
- Gravel and salt are also extracted from oceans.
- In flatter areas, water evaporates, leaving behind gravel and salt deposits
- We use sea salt in our everyday cooking
- Gravel extracts are used to make concrete or cement for infrastructure