Results 171 to 180 of about 1,808 (244)

Differing Controls on the Cycling of Neodymium in the Atlantic and the Pacific

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract Neodymium (Nd) isotopes ratios are regarded as a key proxy for past ocean circulation despite unsettled debate on marine Nd cycle controls, which opposes a “top‐down” hypothesis (surface sources dominate) and a “bottom‐up” hypothesis (sedimentary sources dominate), each with important implications for Nd isotope proxy interpretation.
Paige M. Wise, Benoît Pasquier, Seth G. John, Sophia K. V. Hines   +3 more
wiley   +1 more source

A 13.06 Ma widespread ignimbrite in the Pannonian Basin captured a snapshot of shallow marine to coastal environment in Central Paratethys. [PDF]

Sci Rep
Karátson D, Lahitte P, Portnyagin M, Palotai M, Józsa S, Márton E, Tóth E, Erdei B, Nomade S, Németh K, Iván L, Krasznai M, Vörös F, Biró T, Paquette JL, Hably L, Hír J, Prakfalvi P, Kiss J, Pécskay Z, Frick DA, Hencz M.   +21 more
europepmc   +1 more source

Frictional Heterogeneity Governs Slip Partitioning and Seismic Hazard in the 2023 Turkey Earthquake Doublet

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract Quantifying fault frictional properties is fundamental to understanding slip behavior and seismic hazard. We analyze 2 years of Sentinel‐1 SAR data following the 2023 Turkey earthquake doublet using Independent Component Analysis‐enhanced Small Baseline Subset‐InSAR, to resolve postseismic deformation and invert for afterslip on the East ...
Jianlong Chen, Peizhen Zhang, Xin Qiao, Zicheng Huang, Lejun Lu   +4 more
wiley   +1 more source

Heavy boron isotopes in intraplate basalts reveal recycled carbonate in the mantle. [PDF]

Sci Adv
Xu R, Cai Y, Lambart S, Chen C, Zhang JB, Zhou MF, Liu J, Bai Z, Wu T, Huang F, Ruan T, Liu Y.   +11 more
europepmc   +1 more source

Inverse Grading Emerges From Particle‐Scale Migration Under Seasonal Freeze‐Thaw Forcing: Evidence From Multi‐Year Monitoring and Physical Modeling

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract Inverse grading, where coarse particles overlay finer materials, is common on talus slopes, yet its progressive formation under realistic conditions is rarely quantified. We integrate multi‐year field observations with controlled freeze‐thaw experiments to elucidate the processes driving particle migration that result in inverse grading and ...
Weibo Li, Qinglu Deng, Limin Zhang, Pengju An, Xingwei Ren, Xuexue Su, Ruiqiang Bai, Jiren Xie, Li Zeng, Kun Fang   +9 more
wiley   +1 more source

Short-Term Exposure to Fine Particulate Matter (PM_2.5), Cause Specific-Mortality, and High-Risk Populations: A Nationwide Time-Stratified Case-Crossover Study. [PDF]

Geohealth
Ahn S, Oh J, Yun H, Min H, Kim Y, Kang C, An S, Kim A, Kwon D, Park J, Lee W.   +10 more
europepmc   +1 more source

Magmatic immiscibility provides phosphate for prebiotic chemistry. [PDF]

Sci Adv
Weller D, Matreux T, Smokers IBA, Schmid A, Mast CB, Dingwell DB, Braun D, Scheu B.   +7 more
europepmc   +1 more source

Unravel subseafloor hydrothermal leaching and magmatic degassing during chimney formation at Kolumbo volcano. [PDF]

Sci Rep
Hector S, Ahmad Q, Patten CGC, Chiaradia M, Nomikou P, Kilias S, Peillod A, Wagner S, Kolb J.   +8 more
europepmc   +1 more source

Paleoproterozoic Mississippi Valley-type mineralization at Black Angel, Greenland: evidence from sulfide δ⁶⁶Zn and rhenium-osmium geochronology. [PDF]

Miner Depos
Saintilan NJ, Archer C, Szilas K, Krüger Geertsen K, Rosa D, Spangenberg JE.   +5 more
europepmc   +1 more source

Isotope geochemistry and petrology of the African carbonatites

International Kimberlite Conference Extended Abstracts: 1973, 2019
openaire   +2 more sources