New data on undersea tectonics: Link to increased CO2 in the oceans?

New data on undersea tectonics: Link to increased CO2 in the oceans?

[Ed. – Is the increased in CO2 in the oceans due either largely or partially to the activity of undersea volcanoes we previously had little data on?  See the comments section for some very interesting discussion and links.]

Earthquakes were also mapped. In addition, the researchers discovered that seamounts and earthquakes are often linked. Most seamounts were once active volcanoes, and so are usually found near tectonically active plate boundaries, mid-ocean ridges and subducting zones.

The new map is twice as accurate as the previous version produced nearly 20 years ago, say the researchers, who are affiliated with California’s Scripps Institution of Oceanography (SIO) and other institutions. …

The paper’s co-authors say that the map provides a window into the tectonics of the deep oceans. …

“One of the most important uses will be to improve the estimates of seafloor depth in the 80 percent of the oceans that remain uncharted or [where the sea floor] is buried beneath thick sediment,” the authors state.

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