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The Isua Supercrustal Belt in Greenland hosts sedimentary rocks that were deposited 3.7 billion years ago in the forearc environment of an active convergent plate boundary, suggesting subduction-related plate tectonics in the Eoarchean, as indicated by geochemical data and tectonostratigraphic analyses of an 80-m drill core.
A pan-Arctic estimate of past and future subsea permafrost including solid Earth effects causes local sea level to differ from the global mean. Future subsea permafrost disappears faster under high than low emissions scenarios.
A 2000 year-long sedimentary record of tsunami deposits along the Mexican subduction zone provides a proxy for earthquake occurrence and suggests a large event of magnitude 8 or greater occurred in the Guerrero seismic gap around AD 1300.
An integrated model of mineral weathering and carbon cycling reveals the substantial influence that clay minerals originating from the weathering of magnesium-rich rocks have on Earth’s climate. This research indicates that this clay-forming process contributed to each Palaeozoic glaciation.
An article in Geochemistry, Geophysics, Geosystems uncovers the source, distribution, and concentration of rare earth elements, yttrium and scandium in sea-floor sediments within the South Pacific Gyre.
The colonization of Earth landmasses by vascular plants around 430 million years ago substantially impacted erosion and sediment transport mechanisms. This left behind fingerprints in magmatic rocks, linking the evolution of Earth’s biosphere with its internal processes.
An article in Water Research investigated the rates, microbe types and main drivers of dark carbon fixation within intertidal sediments from the Yangtze Estuary, China.