carbonates

white cliffs of dover

Mapping the Growth of Seafloor Carbonates in Deep Time

EarthByte researchers combined their model of plate tectonics with records of carbonate layers logged from cores collected during scientific ocean drilling expeditions. Together, these resources enabled them to estimate the growth and eventual recycling of carbonate deposits through subduction over the last 120 million years.

Showing 21-30 of 30 results
Spin Transition in Deep-Mantle Ferromagnesite 15 January 2014 Feature

Carbonates, such as magnesite, calcite, and dolomite, are important potential deep-carbon carriers…

Evidence of Novel Carbon Chemistry in Earth’s Mantle 13 November 2013 Feature

One of the biggest unknowns in deep carbon science is how much carbon is in Earth. Current…

Crystallographic Defects and Deep Carbon Storage 26 August 2013 Feature

The largest reservoir of carbon on Earth is within its interior. A long-standing question is: Where…

Graphite Formation During Subduction 24 June 2013 Feature

A primary goal of the Deep Carbon Observatory is to define how much carbon is present on Earth. In…

DCO Collaboration Illuminates the Deep Carbon Cycle 19 March 2013 Feature

 A particular challenge in deep carbon chemistry is modeling chemical changes under deep-Earth…

Ferromagnesite as a Deep Mantle Carbon Host 13 February 2013 Feature

Carbonates (e.g., MgCO3, CaCO3) have been proposed as potential host materials for carbon in Earth’…

Dolomite's Role in the Deep Mantle 13 February 2013 Feature

Understanding the deep mantle’s role in the global carbon cycle requires measurements of the high…

Deep Mantle Redox Freezing and Melting 13 February 2013 Feature

Carbonates from subducted oceanic lithosphere may be remixed into Earth’s deep mantle via both…

Magnesite as a Deep Carbon Reservoir 15 February 2011 Feature

Mantle rocks show evidence of minerals made of carbon with different oxidation states  -- minerals…

New Host for Carbon in the Planet 15 February 2011 Feature

The global geochemical carbon cycle involves exchanges between Earth's interior and surface. …

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