Production of the weak, water-bearing mineral at the interface between the Cocos and North American Plates could contribute to the occurrence of poorly understood episodic tremor and slow slip.
Abyssal peridotites show through their isotopic composition a complex history. From differences we can infer the existence of ultra depleted mantle and an uneven contribution to ridge magmatism.
Mantle rocks in Papua New Guinea contain curious geochemical signatures that scientists have traditionally interpreted as evidence of billions-year-old melting. New evidence suggests otherwise.
Laboratory experiments serendipitously revealed a rock-forming process that might explain how the first continental crust formed on Earth—and possibly on Mars.
Researchers use a packer system to study the microbial communities living in waters sampled from deep, uncontaminated peridotite aquifers.
A new version of a free Web application (SIGMELTS 2.0) helps Earth scientists interpret electrical anomalies in Earth’s crust and mantle and track the sources of earthquakes and volcanic eruptions.
New experimental data suggest that rock composition may play a critical role in forming and perpetuating shear zones.
A new model of the melting behavior of certain mantle rocks gives researchers a better understanding of the source of oceanic lavas.
Scientists suggest using the mineral pyroxene to study the water content of the Earth’s upper mantle.