Since physical and chemical erosion yield comparable carbon fluxes, studying both together is essential to avoid biases in erosion-driven carbon flux estimates.
carbonates
Posted inEditors' Highlights
Unlocking Earth’s Terrestrial Sedimentary Record with Paleosols
Harnessing the micro-stratigraphy of pedogenic carbonates, scientists have demonstrated that age determination of fossil soils is possible via uranium-lead dating.
Posted inOpinions
A Transformative Carbon Sink in the Ocean?
Water-rock reactions in some hydrothermal systems produce both hydrogen, which could be tapped for clean energy, and alkaline solutions that could help draw down atmospheric carbon dioxide.
Posted inResearch Spotlights
Optimizing Carbonate Classification on Mars
Combining data from several of the Perseverance rover’s spectroscopic sensors offers a more accurate means to classify carbonate minerals that may hold hints of ancient life.
Posted inEditors' Highlights
Why is the North China Craton Vulnerable to Destruction?
A new study suggests that carbonatite metasomatism, not silicate metasomatism as previously thought, was dominant prior to the removal of the North China Craton in the early Cretaceous.
Posted inNews
A Mysterious Dome Reveals Clues to Australia’s Miocene History
The Nullarbor Plain has been relatively untouched by geological forces, leaving traces of the continent’s deep past.
Posted inNews
Can These Rocks Help Rein in Climate Change?
Spreading olivine on beaches could accelerate ocean uptake of carbon dioxide and potentially limit climate change. The concept and execution still face some scrutiny from scientists.
Posted inNews
Groundwater May Fix as Much Carbon as Some Ocean Surface Waters
Microbes from wells as deep as 90 meters created organic carbon at a rate that overlaps with some nutrient-poor spots in the ocean.
Posted inResearch Spotlights
Understanding the Calcium Carbonate Cycle in the North Pacific
Using data collected from Hawaii to Alaska, a new study sheds light on calcium carbonate cycling in the ocean, an understudied component of the global carbon cycle.
Posted inFeatures
Updating Dating Helps Tackle Deep-Time Quandaries
Geochronologists are finding fresh approaches to familiar methodologies, especially by zapping rocks with lasers to tackle classic Precambrian problems.