The specimen under natural light (a) and UV light (b) showing distinct fluorescence hues for bone (cyan) and soft tissues (yellow) against a dark purple sedimentary matrix.

Researchers discover hidden step in dinosaur feather evolution

These ancient metamorphic rocks called gneisses, found on the Arctic Coast, represent the roots of the continents now exposed at the surface. The scientists said sedimentary rocks interlayered in these types of rocks would provide a heat engine for stabilizing the continents. Credit: Jesse Reimink. All Rights Reserved.

Rock steady: Study reveals new mechanism to explain how continents stabilized

Coal core

Can coal mines be tapped for rare earth elements?

Magnified through a microscope, diatoms, which are a type of siliceous microalgae preserved within sediment, helped the researchers determine the salinity levels of the core samples. Photo courtesy of Jessica DePaolis.

Subduction zone splay faults compound hazards of great earthquakes

Fossilized Douglassarachne acanthopoda, noted for its up-armored spiny legs, might have resemblance to modern harvestmen, but with a more experimental body plan. Credit: Paul Selden

308-million-year-old arachnid discovered in the Mazon Creek locality

Telephoto view looking east of the active lava lake within Halema‘uma‘u at the summit of Kīlauea. Credit: N. Deligne / USGS / Public Domain

Earth scientists describe a new kind of volcanic eruption

Take a close look at these seabed minerals! Green copper minerals are seen here precipitated in a sectioned sulphide sample, retrieved from a scientific cruise conducted by the Norwegian Offshore Directorate across the Mohns Ridge in 2020. Credit: Øystein Leiknes Nag/Norwegian Offshore Directorate

Artificial geysers can compensate for our mineral shortages

Flower Agate

Exploring the Beauty and Mystery of Flower Agate

Utroba Cave, Bulgaria

Unraveling the Mysteries of Utroba Cave

The opening and closing of the Rocas Verdes Basin, a back-arc basin in Patagonia, as described by researchers at The University of Texas at Austin in a study published in Geology. Panels B and C illustrate the basin-closure process, in which an underlying portion of the oceanic crust is thrust into a magma chamber (B) and breaks off ahead of continental crust (C). The last two panels (C and D) show the oceanic plate and continental plate colliding together – squeezing the basin together into the Andes Mountains of Patagonia that we see today. Credit: Fernando Rey et al

New step in tectonic squeeze that turns seafloor into mountains

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