geochemistry

Nature Communications, Published online: 25 May 2026; doi:10.1038/s41467-026-73717-6 This study shows that garnet affects the 660-km seismic discontinuity. High-pressure experiments reveal that the post-garnet transition induces the post-spinel transition, explaining observed structural variations and supporting a pyrolitic mantle.

Nature Communications, Published online: 25 May 2026; doi:10.1038/s41467-026-71536-3 CO2-rich magmas beneath Pagan Volcano are stored near Moho depths and ascend to the surface within weeks to months. These findings link deep, rapid magma ascent to carbonate capped seamount subduction and highlight the role of recycled carbon in arc volcanism.

Scientific Reports, Published online: 24 May 2026; doi:10.1038/s41598-026-54683-x A comprehensive analysis of factors influencing CO 2 -oil displacement in sandstones under reservoir conditions by online nuclear magnetic resonance testing

Nature Geoscience, Published online: 22 May 2026; doi:10.1038/s41561-026-01990-7 Continental lithosphere thickness exerts a positive control on CO2 contents of erupted magmas, hence also influencing the location of rare-earth element deposits, according to a study of lithospheric thickness and CO2-rich magma locations.

IntroductionCoastal ports are typical hotspots for polycyclic aromatic hydrocarbons (PAHs) accumulation. The complex pollution sources and constrained hydrodynamic conditions present significant challenges to the quantitative source tracing and fate simulation of PAHs.MethodsThis study used Qingdao Port (Jiaozhou Bay) as the research object, collecting 24 surface sediment samples. A positive matr…

The Schwinger effect – the creation of electron‑positron pairs from the vacuum under an extremely strong electric field (E_c ≈ 1.3×10¹⁸ V/m) – has been observed in quantum simulator experiments. Mainstream quantum electrodynamics treats this as a tunnelling process, but does not explain why the critical field takes that specific value or why particle‑antiparticle pairs become real precisely at th…

Go far enough underground in northern Ontario and the rock around you is older than almost anything on the surface of this planet. A billion years old, give or take. Gneisses and granites that predate complex life, that predate the oceans as we know them, that have been quietly sitting in the dark, doing chemistry, for longer than the imagination can really hold. And now, in operating mines near …

A 2017 astronaut photo shows two sets of solar evaporation ponds alongside the Colorado River. The stripy structures are used to refine potassium chloride, or "potash," which is mined nearby.

Abstract Groundwater is among the most vital sources of freshwater, providing the primary supply for human consumption and for agricultural and industrial use. Although the construction of barrages enhances resource management and alleviates droughts and floods amid escalating population growth, it affects groundwater quantity and quality. As the most significant multipurpose water project on the…

Abstract In the current study transit time distributions (TTDs) and mixing ratios (MR) are determined and analyzed in the riverbank filtration (RBF) systems of two operating waterworks along the Danube River. Particle tracking method was used based on a calibrated and validated numerical groundwater flow model of both groundwater resources. TTDs and MRs are showing temporal variation and are high…

This document constitutes BKT-11 Annex No. 11 within the White Book of the LOM–GTSFC–USC–GTCW Theory programme. Its purpose is to organise and formally define the mathematical and physical apparatus of the theory comprising the Law of One Mechanism, the Global Theory of Shared Couplings of Fundamental Structures, the Universal Structural Code and the Global Theory of Cyclicity of Universes. The a…

Nature Communications, Published online: 18 May 2026; doi:10.1038/s41467-026-73403-7 Subduction-recycled water trapped in the mantle transition zone can be drawn up by a migrating mid-ocean ridge, triggering deep melting that forms thick oceanic plateau.

Scientific Data, Published online: 18 May 2026; doi:10.1038/s41597-026-07446-2 A global mantle xenolith bulk-rock and paired-mineral dataset