Vol. 325, 2025

We measured δ30Si in sponge spicules across the Triassic–Jurassic boundary (ca. 201 Ma). DSi concentrations ranged 20–90 μM, lower than expected, suggesting sponges may play a role in Si cycling.

A new tectonostratigraphic model for the Khuvsgul Group of northern Mongolia demonstrates the diachroneity of Ediacaran-Cambrian phosphogenesis and constrains the age of one of the youngest-known Doushantuo-Pertatataka-Type microfossil assemblages.

Researchers investigating the Central Lowlands' post-glacial landscape found that drainage density increases rapidly after glaciation, influenced by soil composition and precipitation, reaching near-maximum levels within 50,000 years.

This manuscript focuses on serpentinites from the Guatemala Suture Zone most formed in mantle mélange (antigorite-dominant) and some ophiolitic fragments (lizardite-dominant) with inferences about fluid interactions and tectonic emplacement.

A quantitative kinematic model of bump-type fault-bend folding offers a robust framework for dating the folding of detachment layers, as well as reconstructing the slips and orientations of thrust sheets.