Results 191 to 200 of about 2,490,222 (262)

Oxygen Fugacity Buffers and an Interactive Calculator

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 8, August 2026.
Abstract Oxygen fugacity buffers are equilibrium phase assemblages that constrain the chemical potential of oxygen. They may be coexisting minerals or fluids, or their metastable extrapolations. Oxygen fugacity values vary as a function of pressure and temperature, such that raw numbers often have little interpretive value.
Michael Anenburg
wiley   +1 more source

Global cross-database search system for X-ray absorption spectra. [PDF]

J Synchrotron Radiat
Ishii M, Matsuda A, Sakamoto K, Yamashita S, Niwa Y, Inada Y.   +5 more
europepmc   +1 more source

Highly Enriched and Heterogeneous Mantle Signals Recorded in Mantle Pyroxenite Veins

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 8, August 2026.
Abstract The Earth's mantle is inherently heterogeneous, reflecting ongoing mantle depletion and crustal recycling driven by plate tectonics. Radiogenic isotopes in oceanic basalts are commonly used to characterize mantle reservoirs, but the full chemical diversity of mantle‐derived melts may be obscured by magma mixing during melt transport and ...
Zhen‐Yu Zhang, Chuan‐Zhou Liu, Yan Liang, Tong Liu, Chang Zhang, Bo‐Da Liu, Wen‐Bin Ji, Wei‐Qi Zhang, Ke Huang   +8 more
wiley   +1 more source

Proteoform-predictor: Increasing the Phylogenetic Reach of Top-Down Proteomics. [PDF]

J Proteome Res
Su T, Fellers RT, Greer JB, LeDuc RD, Thomas PM, Kelleher NL.   +5 more
europepmc   +1 more source

Distinct Transcrustal Evolutions of Komatiitic Primitive Magma: Implications for the Compositional Dichotomy of Continental Flood Basalts

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 8, August 2026.
Abstract The origin of the compositional dichotomy between high‐Ti and low‐Ti basalts in continental flood basalt provinces remains debated. Most existing studies attribute this dichotomy directly to variations in primitive magma composition to circumvent the complexities of significant evolutionary processes, such as multiphase fractional ...
Zongpeng Yang, Tong Hou, Roman Botcharnikov, Evangelos Moulas, Meng Wang, Stephan Buhre, Zhaochong Zhang   +6 more
wiley   +1 more source

Scoping review of early warning systems in improving disaster risk outcomes: perspective from evolution to usage in Southeast Asian countries. [PDF]

BMC Public Health
Yadav N, Thalakiya R, Srivastava S, Yadav N, Ostadtaghizadeh A.   +4 more
europepmc   +1 more source

A Contrasting TEC Behavior Over the Low‐Latitude Post‐Midnight Sector During Recovery Phases of May and October 2024 Storms: Possible Role of PPEF, DDEF, and O/N2

Journal of Geophysical Research: Space Physics, Volume 131, Issue 8, August 2026.
Abstract The present study reports on the variability of the post‐midnight ionosphere over the low‐latitude sector during the recovery phases of the May and October 2024 storms. Multi‐instrument observations, comprising global navigation satellite system total electron content (TEC), F‐layer peak height, electron density profiles, and column O/N2 ...
Rahul Rathi, Akash Kumar, Alok Kumar Ranjan, Dipjyoti Patgiri, Satarupa Chakrabarti, Lot Ram   +5 more
wiley   +1 more source

Artificial Intelligence Must Be Made More Scientific. [PDF]

J Chem Inf Model
Coveney PV, Highfield R.
europepmc   +1 more source

Green Emissions From Sprite Tops

Journal of Geophysical Research: Space Physics, Volume 131, Issue 8, August 2026.
Abstract Although sprite discharges above thunderstorms have been studied for about 35 years, science enthusiasts reported the existence of long‐duration green light emissions from sprite tops only recently using commercial digital cameras and named these events green ghosts.
S. Celestin, M. B. Garnung, T. Farges, B. Kosar, L. Boggs, Paul M. Smith   +5 more
wiley   +1 more source

Transients in the Palomar Observatory Sky Survey (POSS-I) may be associated with nuclear testing and reports of unidentified anomalous phenomena. [PDF]

Sci Rep
Bruehl S, Villarroel B.
europepmc   +1 more source