一种新的成像技术探索了台湾南部下方复杂的俯冲碰撞过渡带。
Earth’s crust
A Snapshot of Continental Crust in the Making
New seismic images from the Aleutian Arc show how active volcanic arcs may build new continental crust, highlighting the complex transition at multiple stages.
Cosmic Bombardment Created Potential for Prebiotic Chemistry
Frequent impacts from asteroids and planetesimals in Earth’s earliest days shaped the planet’s crust and created environments that may have supported prebiotic chemistry, and possibly even early life.
Mapping the Hidden Electrical Anatomy of a Continent
After nearly two decades, the first continent-wide magnetotelluric survey reveals the high-resolution electrical architecture of the North American continent.
Scientists Find Thousands of Cubic Kilometers of Magma Hiding Beneath Tuscany
We already know what’s Under the Tuscan Sun. Now, a technique called ambient noise tomography has allowed researchers to see deep under the Tuscan crust.
Eastern Africa Is Splitting Apart, but Not Where We Expected
The Turkana Rift Zone in Kenya entered a critical stage in continental breakup about 4 million years ago.
Seismic Attenuation Techniques Reveal What Lies Beneath Taiwan
A new imaging modality explores the complex subduction‐collision transition zone below southern Taiwan.
Hydrothermal Heat Flow as a Window into Subsurface Arc Magmas
What can warm fluids in arc crust tell us about how much magma is lurking underground? Hydrothermal heat fluxes provide constraints on the supply of magma from the mantle in subduction zones.
Drilling Down to Open Up New Understanding of Earth’s Continents
Scientists have drilled into Earth’s crust for decades to understand natural hazards, past climates, energy resources, and more. They’ve only scratched the surface of what we can learn.
Volcanism Could Lead to Less, Not More, Atmospheric CO₂
The atmospheric concentration of carbon dioxide temporarily fell by 50% immediately preceding a period of intense volcanism, likely because of increased weathering, new results reveal.
