Carbonatites are igneous rocks formed in the crust by fractional crystallization of carbonate-
rich parental melts that are mostly mantle derived. They dominantly consist of carbonate …

To achieve goals for climate and economic growth," negative emissions
technologies"(NETs) that remove and sequester carbon dioxide from the air will need to play …

A hidden carbon cycle exists inside Earth. Every year, megatons of carbon disappear into
subduction zones, affecting atmospheric carbon dioxide and oxygen over Earth's history …

Concealed deep beneath the oceans is a carbon conveyor belt, propelled by plate tectonics.
Our understanding of its modern functioning is underpinned by direct observations, but its …

The Cryogenian Sturtian and Marinoan Snowball Earth glaciations bracket a nonglacial
interval during which Demosponge and green-algal biomarkers first appear. To understand …

Although deep carbon recycling plays an important role in the atmospheric CO2 budget and
climate changes through geological time, the precise mechanisms remain poorly …

The Hadean eon, following the global-scale melting of the mantle,–, is expected to be a
dynamic period, during which Earth experienced vastly different conditions. Geologic …

Carbon Dioxide removal from air (CDR) combined with permanent solid storage can be
accomplished via carbon mineralization in ultramafic rocks in at least four ways: 1. Surficial …

Carbonate, the major carbon reservoir on Earth's surface, can enter into the mantle by
subduction. However, evidence for recycled surficial carbonates in the deep mantle is still …

Kimberlite magmatism has occurred in cratonic regions on every continent. The global age
distribution suggests that this form of mantle melting has been more prominent after 1.2 Ga …