When did freshwater appear on Earth?
Geologists found chemical ratios in ancient minerals that suggested Earth had freshwater 550 million years after it formed.
Category: Geology
A new treasure trove of Cambrian fossils
Paleontologists discovered a new set of fossils from the ancient ancestors of animals in rocks from China.
Melting glaciers release methane
Geologists studied gas fluxes from groundwater springs uncovered by melting Arctic glaciers. They estimated that these springs release over…
Volcanism warmed past Earth
Geologists dated a global warming event about 180 million years ago. They found it lasted between 169,000 and 417,000 years and was linked…
New way to find geothermal energy
Scientists used an exploration approach developed by the oil industry to track down geothermal energy sources.
Most river water comes from the ground
Hydrologists incorporated ground and surface water flow data into Earth System models. They used these models to estimate that nearly 60% of…
How did Venus’s Ishtar highlands form?
Researchers modeled tectonic and magmatic processes on Venus. They determined that its highlands formed when molten rock rose, melting its…
How complex plants reshaped the oceans
Researchers found that when complex plants evolved, they increased ocean oxygen and massively restructured the marine ecosystem.
Geologists identify a new way copper ore forms
Researchers found that massive copper ore deposits in central Arizona formed from melted crust rather than melted mantle.
Storms cause acids to enlarge our aquifers
Researchers found that sulfuric and nitric acids from human activities dissolve more limestone in aquifers than they previously thought,…