Results 191 to 200 of about 78,343 (295)

Influence of Laser Repetition Rate, Fluence and Spot Size on LA‐Q‐ICP‐MS/MS 87Sr/86Sr Precision: Insights from Apatites and Silicate Glasses

Geostandards and Geoanalytical Research, EarlyView.
Key Points Higher laser repetition rate, fluence and larger spot size increase signal intensity. Higher laser repetition rate produces overlaps in aerosolised particles, improving signal stability and precision. For Sr‐rich materials, moderate spot diameter (≤ 60 μm), 3 J cm‐2 fluence and ≥ 12 Hz repetition rate are recommended.
Edafe O. Ominigbo, David T. Murphy, Kate E. Jenkins, Mitchell de Bruyn, Karine H. Moromizato   +4 more
wiley   +1 more source

Origins of Improved Hardness in Bioinspired Aragonite Precipitated Under Simulated Biologic Conditions. [PDF]

Geobiology
Chomhom B, Farfan GA, Greeves S, Penkman K, Finch AA, Fitzer S, Kröger R, Brasier A, Still J, Clog M, Allison N.   +10 more
europepmc   +1 more source

Ontogenetic Development of Hyperostosis in the Crevalle Jack Caranx hippos (Linnaeus, 1766) and New Records of Affected Bone Regions

Journal of Fish Diseases, EarlyView.
ABSTRACT Hyperostosis is a non‐pathological condition widely reported in marine teleosts, yet its developmental dynamics and underlying drivers remain poorly understood. This study investigates the ontogenetic progression and anatomical distribution of hyperostosis in Caranx hippos based on a growth series of 39 specimens collected along the Brazilian ...
Camila Vitória Gonçalves Ferreira, Davi Lettieri Santos dos Abrahão, Alice Miranda Cardoso de‐Sá, Alice Barbosa Henriques, Ana Julia Araujo Rosa D’ Almeida Lima, Maykon Victor Rezende de Oliveira, Márcia Carolina Salomão, Helena Passeri Lavrado, Fernando Augusto Pereira Tuna   +8 more
wiley   +1 more source

High-Pressure Carbonation of Phosphogypsum for Calcium Carbonate Preparation and Crystal Modification Regulation. [PDF]

Materials (Basel)
Huang S, Liu D, Zhang X, Zhang T.
europepmc   +1 more source

Feldspar Albitization With Implications for Reservoir Quality Evolution of Eocene Turbidite Sandstones in Offshore Espírito Santo Basin, Eastern Brazil

Journal of Petroleum Geology, EarlyView.
ABSTRACT The diagenetic albitization of plagioclase and K‐feldspar grains is a transformative process that significantly alters sandstone's detrital composition and formation water chemistry, impacting reservoir quality. In this study, Eocene turbidite sandstones from the offshore Espírito Santo Basin, Brazil, were investigated to elucidate the role of
Eveline E. Zambonato, Luiz F. De Ros, Howri Mansurbeg   +2 more
wiley   +1 more source

Restaurant wastewater as a sustainable medium for ureolytic bacteria in biocementation. [PDF]

World J Microbiol Biotechnol
Omoregie AI, Pramila T, Rajasekar A, Hong CY, Basri HF, Wei-Li AC, Wong CS, Jumbo-Flores D.   +7 more
europepmc   +1 more source

Processes and Patterns of Dolomite Precipitation in Aptian Pre‐Salt Deposits of Santos Basin, Brazil

Journal of Petroleum Geology, EarlyView.
ABSTRACT The Aptian pre‐salt lacustrine carbonates represent the most significant oil exploration target along the South Atlantic margin. Dolomitization of the Santos Basin Barra Velha Formation (BVF) is critical for reservoir quality, yet its origin, patterns, and evolution remain poorly understood.
J. T. F. Oste, R. Fricks Sayão, L. F. De Ros, L. Borghi   +3 more
wiley   +1 more source

Multi-staged mineralization and biomarker preservation in a 113-million-year-old pterosaur bone via redox shifts in diagenesis. [PDF]

iScience
Grice K, Poropat SF, Schwark L, Diaz Mateus MA, Greenwood PF, Brosnan LM, Tripp M, Elson AL, Jian AJY, Saraiva AAF, Bantim RAM, Demore J, Holman AI, Böttcher ME, Pentland AH, Madden RHC, Hopper P, Sun X, Dodd A, de Oliveira AV, Visscher PT, Rickard WDA, Sayão JM, Rahimpour-Bonab H, Schmiedinger I, Leshyk VO, Kellner AWA.   +26 more
europepmc   +1 more source

Atlantic sediments reveal interacting environmental and physiological controls on coccolithophore calcite production. [PDF]

Nat Commun
González-Lanchas A, Baumann KH, Stoll HM, Flores JA, Fuertes MA, Rickaby REM.   +5 more
europepmc   +1 more source

Estimating past fluid pH and evaporative conditions in Gale crater using terrestrial analog samples from Death Valley, CA

Meteoritics &Planetary Science, EarlyView.
Abstract Boron and lithium have been observed in Ca‐sulfate veins of Gale crater. These elements are highly water mobile and can inform us regarding the aqueous processes that may have taken place in Gale crater. However, the analysis of B in Gale crater is limited to low‐Fe rocks and minerals due to spectral interference of Fe with B in ChemCam data ...
D. Das, P. J. Gasda, K. Berlo, R. J. Leveille, M. A. Nellessen, L. Crossey, E. Peterson, R. Beal, A. L. Reyes‐Newell, S. M. Clegg, N. L. Lanza, O. Gasnault   +11 more
wiley   +1 more source