Results 71 to 80 of about 77,130 (271)
Boninite and Harzburgite from Leg 125 (Bonin-Mariana Forearc): A Case Study of Magma Genesis during the Initial Stages of Subduction [PDF]
, 1992 Holes drilled into the volcanic and ultrabasic basement of the Izu-Ogasawara and Mariana forearc terranes during Leg 125 provide data on some of the earliest lithosphere created after the start of Eocene subduction in the Western Pacific.
Arculus, Richard J. +6 more
core +1 more source
Geosciences, 2020 Quartzites and paragneisses of the Archean granulite series of the Anabar Shield (Siberian Craton, Russia) are described geochemically. The Sm-Nd isotope systematics of the rocks and the U-Pb age (SHRIMP II) and geochemistry of zircons from quartzites ...
Nikolay I. Gusev +2 more
doaj +1 more source
Laser Ablation Sampling With Low‐Power Plasma: A LA‐MIP‐MS Instrument for Spaceflight
Rapid Communications in Mass Spectrometry, Volume 40, Issue 3, 15 February 2026.ABSTRACT Rationale Inductively coupled plasma (ICP) is a commonly used ion source for mass spectrometry‐based chemical analysis of a wide range of materials. Traditional ICP ion sources use high power (> 1000 W) and significant gas flow (> 10 L/min), rendering them unsuitable for spaceflight, as they are too resource‐intensive for planetary spacecraft.
Benjamin J. Farcy +11 more
wiley +1 more source
Sm-Nd isotope study and dating on Honguleleng ophiolite in Xinjiang, China
Chinese Science Bulletin, 1999 A study of the Sm-Nd isotope composition of Honguleleng ophiolite in Xinjiang, China, isochron age ((626±25)Ma),eNd(t) =8.40,and its model age (T DM Nd ) in the range of 1 180–1 208 Ma, indicates that the ophiolite was formed in the late stage of the Upper Sinian.
Zhangdong Jin, Jianhua Huang, Fuchun Li
openaire +1 more source
Photocatalytic Degradation of PFOA with Porous Lanthanoid Perovskites Nano Catalyst
Chemie Ingenieur Technik, Volume 98, Issue 1-2, Page 7-17, February 2026.Photocatalytic degradation of PFOA was studied using nickel‐ and lanthanide‐doped perovskites under UV–VIS irradiation. Catalyst characterization confirmed successful doping, with Ni/NdMnO3 showing the highest photocatalytic efficiency. Degradation occurred via C–C bond cleavage, forming transformation products PFHpA and PFHxA.
Julia Schowarte +5 more
wiley +1 more source
U–Pb dating and Sm–Nd isotopic analysis of granitic rocks from the Tiris Complex : new constaints on key events in the evolution of the Reguibat Shield, Mauritania [PDF]
, 2012 The Reguibat Shield of N Mauritania and W Algeria represents the northern exposure of the West African Craton. As with its counterpart in equatorial West Africa, the Leo Shield, it comprises a western Archaean Domain and an eastern Palaeoproterozoic ...
Abdouloye, T.B. +6 more
core +1 more source
Food Science &Nutrition, Volume 14, Issue 2, February 2026.Mineral element fingerprint analysis technology is one of the effective methods for grain origin identification. The accuracy of the identification model is closely related to sample origin, including traceability scope and sample quantity. ABSTRACT Mineral element fingerprint analysis technology is one of the effective methods for grain origin ...
Mingming Chen +3 more
wiley +1 more source
Paleoproterozoic source contributions to the São Roque Group sedimentation: LA-MC-ICPMS U-Pb dating and Sm-Nd systematics of clasts from metaconglomerates of the Boturuna Formation [PDF]
Geologia USP. Série Científica, 2012 The So Roque Group is characterized by volcano-sedimentary sequences, in which deposition probably started in the late Paleoproterozoic. U-Pb dating by LA-MC-ICPMS of zircons extracted from predominantly equigranular monzogranites clasts from Morro Doce ...
Larry Michael Heaman +4 more
doaj +1 more source
MedComm, Volume 7, Issue 2, February 2026.Based on the integrated analysis of follicular fluid metabolites and microbial communities in patients with PCOS, this study reveals significant dysregulation in the follicular microenvironment. Key metabolites including D‐glucose and 25‐hydroxycholesterol show marked alterations, while microbial communities such as Alicyclobacillus and Terrimonas ...
Manfei Si +6 more
wiley +1 more source
Известия высших учебных заведений: Геология и разведка, 2018 Kandalaksha graben, located in the water-area of the White sea, is a part of the Onega-Kandalaksha paleorift of the Riphean time of foundation. It is filled with the terrigenous formations of the Terskaya suites ranging from 3 to 8 km by depth, while the
A. S. Baluev +4 more
doaj +1 more source