Results 131 to 140 of about 2,749 (215)

Xenon isotopes reveal a geomagnetic prelude to Earth's oxygenation. [PDF]

Natl Sci Rev
Wei Y.
europepmc   +1 more source

Emergence of Continents Stabilized the Bioavailability of Boron

Terra Nova, Volume 38, Issue 4, Page 278-284, August 2026.
ABSTRACT Boron is an essential element for the development of life on Earth; borates stabilize ribose in prebiotic reactions and facilitate metabolism in higher plants. There is, however, a relatively narrow surface boron concentration range over which borates stabilize and serve as a micronutrient rather than a toxin.
Brendan V. Dyck, Jon Wade
wiley   +1 more source

Quantifying crustal stress in the Sinai Peninsula caused by gravitational potential energy and its tectonic implications. [PDF]

Sci Rep
Jallouli C, Abdelfattah AK, Alzahrani H.
europepmc   +1 more source

High‐Resolution Imaging of a Distant M6 Intermediate‐Depth Earthquake Using Ocean‐Bottom DAS and Seismic Network

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract Distributed Acoustic Sensing (DAS) provides dense, wide‐aperture observations potentially ideal for imaging earthquake rupture processes. By combining data from a ∼450 km‐long seafloor DAS array offshore Chile and a conventional seismic network, we image an Mw 6.0 intermediate‐depth earthquake ∼400 km away in Argentina, achieving km‐scale ...
Yuqing Xie, Jean‐Paul Ampuero, Martijn van den Ende, Tong Zhou, Alister Trabattoni, Marie Baillet, Diane Rivet   +6 more
wiley   +1 more source

Seismic and mineralogical evidence for an iron-rich mega-ultralow-velocity zone beneath Hawai'i. [PDF]

Sci Adv
Kim D, Song JH, Dobrosavljevic VV, Lekić V.   +3 more
europepmc   +1 more source

Calcium Solubility of Bridgmanite in Subducted Basalt in Earth's Lower Mantle

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract The calcium solubility in bridgmanite and the resulting abundance of davemaoite under lower‐mantle pressure‐temperature conditions have been under debate following a recent report of extensive calcium dissolution in bridgmanite. We experimentally investigated the calcium solubility in bridgmanite in a basaltic composition at pressures up to ...
Chengwei Zhang, Takashi Yoshino, Elias El Ghazaoui, Stella Chariton, Vitali B. Prakapenka, Luo Li, Yanyao Zhang, Jung‐Fu Lin   +7 more
wiley   +1 more source

The mantle source of REE-rich alkaline silicate magmas can be enriched by continent-derived sediment subduction. [PDF]

Nat Commun
Qiu KF, Long ZY, Romer RL, Halama R, Williams-Jones AE, Yu HC, Li SS, Wu MQ, Deng J.   +8 more
europepmc   +1 more source

Discrepancy in Satellite Altimetry Products Hinders Robust Retrieval of GIA Signals From Bedrock GNSS Data in Greenland

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract Isolating glacial isostatic adjustment (GIA) signals from Global Navigation Satellite System (GNSS) observations of vertical land motion (VLM) in Greenland requires removal of elastic solid Earth response to contemporary ice mass change. This elastic correction depends on ice‐surface elevation changes derived from satellite altimetry and firn ...
Holly Kyeore Han, Surendra Adhikari, Lambert Caron, Hui Gao, Parviz Ajourlou, Shfaqat Khan, Beata M. Csatho   +6 more
wiley   +1 more source

Basal mantle structure regenerated through supercontinents. [PDF]

Nat Commun
Peng P, Mitchell RN, Zhang N, Su X, Li Y, Sun F, Wang C, Guo J, Zhai M.   +8 more
europepmc   +1 more source

The 2025 Mw 7.6 Aomori Megathrust Earthquake in Northeast Japan: Failure of a Structurally and Rheologically Bounded Asperity Beneath a Cold Mantle Wedge

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract To explore mechanisms of rupture segmentation, we invert coseismic GNSS offsets for the 2025 Mw 7.6 Aomori, Japan earthquake. Our preferred curved‐fault solution images a compact thrust rupture at 25–50 km depth with peak slip ∼2.5 m near 35 km.
Xiaolong Zhang, Shaoyang Li, Jinhong Shi, Yuji Itoh, Ji Zhang, Aitaro Kato, Ling Chen   +6 more
wiley   +1 more source