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Applied Sciences, Vol. 16, Pages 9004: Construction of a Long-Lived Hydrothermal Architecture for W, Au-Sb Deposits During Variscan Belt Thermal Collapse, French Massif Central (330–295 Ma)
2+ day, 10+ hour ago (412+ words) Since pioneering fluid-flow models for the Iberian and French Variscan belt, advances in geochronology, thermochronology, and geodynamic modeling have improved our understanding of late Variscan crustal evolution. New datasets suggest tungsten and gold mineralization do not represent distinct metallogenic events,…...
Deep Inside Earth, Hydrogen May Move Like a Liquid While the Iron Around It Stays Solid
6+ day, 15+ hour ago (489+ words) Earth’s inner core remains one of the planet’s hardest places to understand. Now, an extreme laboratory experiment has uncovered unusual behavior that researchers had struggled to observe directly. Something unusual may be happening deep inside Earth. Experiments suggest that hydrogen…...
Six mysterious structures discovered deep inside the Earth
1+ week, 3+ day ago (802+ words) Although the planet's deepest layers are inaccessible directly, researchers can use seismic waves generated by powerful earthquakes to probe what lies thousands of kilometers below the surface. Now, a team of Chinese scientists has identified unusual structures at the boundary…...
Rock Sample Collection
1+ week, 5+ day ago (50+ words) NOAA Ocean Exploration (.gov) LIVE VIDEO: The 2026 American Samoa ROV + Mapping Exploration expedition is underway. Watch live dives to explore deep-sea habitats of American Samoa. NOAA Ocean Exploration, 2026 American Samoa ROV + Mapping Exploration Download largest version (jpg, 490.7 KB) Stay connected…...
Earth’s Core Could Be Hiding the Equivalent of up to 45 Oceans of Water
1+ week, 4+ day ago (639+ words) Home → Science → Astronomy Deep Earth conditions created in a lab reveal the core is chemically packed with hydrogen. Earth’s core has often been described as just a giant ball of molten iron and nickel. Now, a new study argues that…...
Earth’s Inner Core May Hide a Strange State of Matter
1+ week, 4+ day ago (359+ words) Experiments under extreme conditions suggest that iron hydride can enter a superionic state, allowing hydrogen to move through a solid iron lattice. That mobility could also soften the alloy against shearing, a property with potential geophysical importance because it may…...
Decoding Rocks to Reveal What the Critical Zone Hides - Eos
1+ week, 5+ day ago (258+ words) As environmental conditions change, it is increasingly important to understand the structure and properties of the Earth’s critical zone, the layer where rock, soil, water, air, and living organisms meet and interact. While several geophysical methods provide images of the…...
Sand overextraction weakening riverbanks as concrete demand soars
2+ week, 3+ day ago (245+ words) The Guardian Sand overextraction weakening riverbanks as concrete demand soars Research finds demand has more than doubled since 2000 and 80% of current demand comes from Asia A booming demand for concrete has resulted in sand and gravel being extracted from riverbeds…...
Applied Sciences, Vol. 16, Pages 8408: Model Test on Thermo-Mechanical Behavior of Pure Friction Piles Under Cyclic Temperature
2+ week, 5+ day ago (477+ words) Frictional energy piles are a more desirable form of shallow geothermal energy utilization. A pure friction pile condition cannot be achieved in field tests. In this study, foam was placed beneath the model pile tip to weaken the end-bearing resistance....
Earth’s outer core is an ocean of liquid metal whose volume roughly equals that of Mars. Seismic waves from repeated French nuclear tests at Mururoa have now revealed parts of it changing over only a few years: signals arrived up to 0.2 seconds early or late, suggesting that structures hundreds of kilometres wide are moving through the molten core on human timescales.
2+ week, 6+ day ago (844+ words) Closely matched seismic paths from Mururoa tests changed by up to 0.2 seconds between 1977 and 1995, revealing rapid outer-core variation while leaving the responsible material open to interpretation....