diamond anvil

Patches Along Core-Mantle Boundary May Be Deep Hiding Place for Oxygen

Almost 3,000 kilometers below the surface, mysterious patches sit in between the rocky mantle and Earth’s iron-rich core. Scientists know of these blotches because they significantly slow passing seismic waves generated by earthquakes. Since the discovery of these so-called “ultralow-velocity zones” (ULVZs) in the mid-1990s, researchers have proposed several possible explanations, but no one has been able to fully account for these subsurface anomalies.

Content tagged with “diamond anvil”Showing 1-10 of 24 results

Patches Along Core-Mantle Boundary May Be Deep Hiding Place for Oxygen 11 December 2017 Feature

DCO members Jin Liu, Wendy Mao (both at Stanford University, USA), and Ho-Kwang (Dave) Mao (…

Researchers Discover the ‘Diamond of Carbonate’ 14 September 2017 Feature

Sergey Lobanov (Stony Brook University, USA, formerly at the Carnegie Institution of Washington,…

A New Source of Hydrocarbons in the Deep Carbon Cycle 12 June 2017 Feature

Due to its ubiquity on the surface, acetate could end up in the deep subsurface through subduction…

Study Finds Core Formation Not Responsible for Earth’s Iron Anomaly 19 April 2017 Feature

A group led by DCO Extreme Physics and Chemistry Community Member Jung-Fu Lin (University of Texas…

Explaining Abnormal Sound Velocities of Carbonates in Earth’s Mantle with Extreme Physics and Chemistry 19 January 2017 Feature

Earth’s interior is a dynamic mixture of minerals and crystals. Under the influence of extreme…

Extreme Physics and Chemistry of Deep Earth Solves Geodynamo Mystery 22 July 2016 Feature

The inner core formed around one billion years ago; however the geological record shows a strong…

Advancing Instrumentation to Study Materials and Reaction in Earth’s Deep Interior 22 June 2016 Feature

Understanding how carbon reacts in these conditions is an important DCO decadal goal, and…

Does Earth's Core Host a Deep Carbon Reservoir? 14 April 2015 Feature

Earth’s formation is one of the most profound events in our history. Meteorites provide information…

Novel Carbon Bonding at High Pressure 18 February 2015 Feature

Only a small fraction of our planet’s total carbon budget is found at the surface. In fact, Earth’s…

Orthorhombic Ferromagnesite as a Deep-Mantle Carbon Carrier 16 February 2015 Feature

How carbon is stored in Earth’s deep interior remains one of the key open questions in Earth…