Substrate
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geology

11 stories related to this topic, newest first.

Study Finds Rock Discontinuity Density Shifts Mining Overburden Failure Mode and Lowers Critical Width-to-Depth Rationews.google.com
science4 hrs ago

Study Finds Rock Discontinuity Density Shifts Mining Overburden Failure Mode and Lowers Critical Width-to-Depth Ratio

A paper published June 3 in Scientific Reports models how fracture density in rock alters subsidence patterns above underground coal mines. Researchers built UDEC simulations and compared them with field cases from China's Ordos coalfield.

nature.com
1 source
Scientists Estimate Earth Contains Large Deposits of Naturally Occurring Geologic Hydrogenbusinessinsider.com
science1 day ago

Scientists Estimate Earth Contains Large Deposits of Naturally Occurring Geologic Hydrogen

Researchers say naturally occurring underground hydrogen could be extracted at under $1 per kilogram. Canadian firms have started test drilling in Quebec to assess commercial viability.

OilPrice.com
1 source
Researchers Find Extraterrestrial Material in South Korean Impact Craterdailywire.com
world11 days ago

Researchers Find Extraterrestrial Material in South Korean Impact Crater

Scientists identified traces of asteroid material inside stromatolites at the Hapcheon crater in South Korea. The formations date to approximately 42,300 years ago and contain geochemical signatures from both the impactor and surrounding bedrock.

GB News
1 source
Kilauea Volcano Produces Tephra Devils During 47th Eruption Episodeyahoo.com
world13 days ago

Kilauea Volcano Produces Tephra Devils During 47th Eruption Episode

USGS scientists observed short-lived Tephra Devils forming over Kilauea’s craters during the volcano’s 47th eruptive episode last week. The phenomenon occurs when low-density tephra creates localized heat that lifts surface air into twisting columns. The next eruption is expected…

New York Post
1 source
Scientists Detect Unusually Buoyant Rock Layer Beneath Bermuda 30 Million Years After Volcanism Ceasedopindia.com
world20 days ago

Scientists Detect Unusually Buoyant Rock Layer Beneath Bermuda 30 Million Years After Volcanism Ceased

Researchers from the Carnegie Institution of Washington and Yale University mapped a 12-mile-thick subterranean slab beneath Bermuda that is 1.5 percent lighter than surrounding mantle rock. The formation, created between 30 and 35 million years ago, explains why the Bermuda Rise…

GB News
1 source
Mantle-derived Gases Found in Zambian Hot SpringsNew Scientist
science21 days ago

Mantle-derived Gases Found in Zambian Hot Springs

Researchers analysing samples from hot springs and geothermal wells in Zambia's Kafue Rift detected helium and carbon isotope ratios matching those deep beneath the crust. The findings indicate fluids from as far as 190 kilometres below the surface are rising through faults in an…

New Scientist
1 source
Study Detects Mantle-Derived Helium in Zambian Hot Springs, Supporting Suspected Kafue Rift ActivityNew Scientist
science20 days ago

Study Detects Mantle-Derived Helium in Zambian Hot Springs, Supporting Suspected Kafue Rift Activity

A new study published Monday in Frontiers in Earth Science reports elevated helium-3 levels in gas samples from hot springs and geothermal wells above Zambia's suspected Kafue Rift, providing geochemical evidence that the area is geologically active. The research, led by Rūta Kar…

Cnn
New Scientist
2 sources
USGS Releases New 3D Underground Geologic Map of the United StatesSubstrate placeholder — needs review
science26 days ago

USGS Releases New 3D Underground Geologic Map of the United States

A new map and model of the deep continental structure underneath the United States was created by the U.S. Geological Survey. NPR's Ailsa Chang interviewed Paul Bedrosian about the project, which could help the electric grid avoid catastrophe. The story appeared on All Things Con…

Npr
1 source
Zircon Crystals Indicate Extinct Volcanoes May Still Develop UndergroundBoris Lobastov / Wikimedia (CC BY 4.0)
science35 days ago

Zircon Crystals Indicate Extinct Volcanoes May Still Develop Underground

Researchers analyzed zircon crystals from a Greek volcano, revealing ongoing magma activity during periods of surface quiescence. The findings suggest that some volcanoes classified as extinct could remain active beneath the surface. This could influence how scientists evaluate e…

Science News
1 source
Study Finds Accelerated Crustal Thinning in East Africa's Turkana Riftmorningstaronline.co.uk
world37 days ago

Study Finds Accelerated Crustal Thinning in East Africa's Turkana Rift

Scientists have identified accelerated rifting in East Africa's Turkana Rift, with the crust thinning to 8 miles at its center. This necking phase suggests the potential formation of a new ocean over millions of years. The findings also link geological changes to the region's ric…

GB News
1 source
Research Reveals Long Dormancy Period for Active Volcano Methana in GreeceSubstrate placeholder — needs review
science39 days ago

Research Reveals Long Dormancy Period for Active Volcano Methana in Greece

New research has found that the active volcano Methana near Athens, Greece, experienced a dormancy period of nearly 110,000 years. This discovery challenges traditional distinctions between volcanic dormancy and extinction. The findings were reported by @ScienceMagazine.

SC
1 source