OCEAN 210 Lecture 10: Radiocarbon

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23 Feb 2019

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Ocean 210

Lecture 10

Radiocarbon

All diagrams taken from "Ocn210_topic1_lect4.ppt" on the course Canvas website or

created by me.

Half life

• Half-life: the time it takes an initial concentration to decay by half

• 14C has a half life of approx. 5000 years

• This can be used to determine deep-ocean water age

Radiocarbon

• Pacific deep ocean water is much older than Atlantic water

• Tells us how the water in the ocean moves and circulates

• Enters the deep ocean in the North Atlantic and moves southward until it reaches

Antarctica and moves northward through the Pacific

Biological Productivity

• Dissolved Phosphorus Profile

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