Results 151 to 160 of about 78,963 (335)
Geostandards and Geoanalytical Research, EarlyView.Key Points A new magnetite reference material (PF21mt) is available for δ18O measurements by SIMS. Reproducibility of measurement results in two laboratories suggest orientation bias of ±2‰ (2s) at 20 keV. Repeatability improves to ±1‰ (2s) when using a 13 keV protocol, suggesting reduced orientation bias. In situ isotope ratio measurements provide the
Michelle Ulrich +4 more
wiley +1 more source
Dinamika Rekayasa, 2013 The study of andesite resources was carried out in Hargowilis village, Kokap sub-district, Kulonprogo regency, Daerah Istimewa Yogyakarta province using geoelectrical data with Schlumberger configuration, as much as 14 point which is spreading on 8 ...
Eko Bayu Purwasatriya
doaj
AZ18-WHT06x Grab Xenolithic>Igneous>Plutonic>Ultramafic>Rock Peridotite xenolith bomb
, 2018 Terry Plank
openalex +1 more source
Geostandards and Geoanalytical Research, EarlyView.Key Points We recommend using the notation δ122/118SnNIST SRM 3161a for mass‐dependent Sn isotope data. We derived conversion factors relative to NIST SRM 3161a for Puri Sn CEZA (0.132 ± 0.011‰), Sn Lyon (0.229 ± 0.016‰), Sn IPGP (0.162 ± 0.018‰). Tin isotope compositions are presented for SPEX CertiPrep Sn and nine USGS reference materials.
Aurélia C.E. Meister +10 more
wiley +1 more source
Continental igneous rock composition: A major control of past global chemical weathering. [PDF]
Sci Adv, 2017 Bataille CP, Willis A, Yang X, Liu XM.
europepmc +1 more source
The Legacy of Policy Inaction in Climate‐Growth Models
International Economic Review, EarlyView.ABSTRACT To better understand the structure and core mechanisms of a broad class of climate‐growth models, we study a simplified version of the dynamic integrated model of climate and the economy (DICE) through the lens of growth theory. We analytically show that this model features a continuum of saddle‐point stable steady states.
Thomas Steger, Timo Trimborn
wiley +1 more source
Origin of Lithium–Potassium-Rich Brines in the Jianghan Basin, South China: Constraints by Water–Rock Reactions of Mesozoic–Cenozoic Igneous Rocks [PDF]
, 2021 Chunlian Wang +5 more
openalex +1 more source
Transillumination‐Aided Infiltration of MIH‐Affected Molars: Evaluation of the Clinical Workflow
International Journal of Paediatric Dentistry, EarlyView.ABSTRACT Background Enamel affected by molar incisor hypomineralisation (MIH) exhibits reduced mechanical properties due to its disorganised prismatic structure, lower mineral density and higher protein content. These alterations increase porosity and susceptibility to posteruptive enamel breakdown.
Omar Marouane +5 more
wiley +1 more source
Lunar igneous intrusions [PDF]
Lunar igneous intrusions revealed from Apollo 10 and 11 flight ...
El-Baz, F.
core +1 more source
Periodontitis and Periodontal Conditions in Systemically Healthy Children and Adolescents
Journal of Clinical Periodontology, EarlyView.ABSTRACT Objective To answer the PICoS question ‘in systemically healthy children and adolescents (Population), what are the main features of periodontitis, necrotising periodontal diseases (NPD) and other periodontal conditions (periodontal abscesses, endo‐periodontal lesions, traumatic occlusal forces, prosthesis‐ and tooth‐related factors ...
Inbar Eshkol‐Yogev +5 more
wiley +1 more source