Results 71 to 80 of about 2,650 (213)
Archaeometry, EarlyView.ABSTRACT The hypotheses of Senonian flint to be a prime source of prehistoric “chalcedony” flint artefacts from the Negev Desert (Israel) was not investigated in detail thus far. By combining trace‐element profiling with statistical interpretation, ten flint items from Nahal Zahal, an Early Pre‐Pottery Neolithic B site in the northern Negev, were ...
Meir Finkel +5 more
wiley +1 more source
Apatite-hosted REE mineralization in the Eastern Ghats Mobile Belt: A future prospect for REE
Geosystems and GeoenvironmentThe growing need of rare earth elements in different sectors of the modern-day world has led to their increasing demand, which is in accordance with their limited supply. In such a scenario, investigations related to search for potential zones of rare earths have become the need of the hour. In one such investigation, undertaken by Geological Survey of
Mousumi Bhattacharjee +2 more
openaire +2 more sources
Archaeometry, EarlyView.ABSTRACT The inland rock‐cut site of Teniky, located in the Isalo massif of southern Madagascar, represents an exceptional archaeological context recently dated to the 11th–12th centuries ad, corresponding to the early phases of settlement on the island.
Jean Rodier +2 more
wiley +1 more source
Archaeometry, EarlyView.ABSTRACT Chert tools were widely used in prehistory by human societies due to their knapping suitability and availability, but their relatively uniform composition, especially in evaporitic cherts, complicates sourcing, requiring specialised analytical methods.
Bruno Gómez de Soler +5 more
wiley +1 more source
Diabetes, Obesity and Metabolism, EarlyView.ABSTRACT Background Glucagon‐like peptide‐1 receptor agonists (GLP‐1RAs), dual glucose‐dependent insulinotropic polypeptide (GIP)/GLP‐1RA and triple (GIP)/GLP‐1RA/glucagon agonists achieve placebo‐subtracted weight loss of 15% to 22%. Their long‐term value depends on how well the weight loss is maintained and on the composition of weight loss, not only
Michael Zitzmann +3 more
wiley +1 more source
Geochemical Characteristics of Sunda Volcanic Arc in Sumatra and Andaman
Indonesian Journal on Geoscience, 2019 Geochemical characteristics of Sunda volcanic belt are recognized from each characteristic of Weh Island, Tabuan Island in Semangko Bay, South Sumatra, and the Andaman Islands.
Hananto Kurnio
doaj +1 more source
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 +4 more
wiley +1 more source
Kuangchan zonghe liyongThe rare earth element (REE) content in the aluminum-bearing rock series of the Lower Carboniferous Jiujialu Formation in the Jinsha Area of northwest Guizhou is relatively high, showing certain exploration potential.
Kun QIE +3 more
doaj +1 more source
Appraisal of Six Natural Mica Reference Materials for In Situ Rb‐Sr Geochronology
Geostandards and Geoanalytical Research, EarlyView.Key Points Evaluated six natural mica reference materials for in situ LA‐ICP‐MS/MS Rb‐Sr geochronology using geochemical, microstructural and isotopic characterisation. Identified robust primary reference materials: Mount Dromedary biotite (99.37 Ma) and Mica‐Fe biotite (307.75 Ma). La Posta biotite and Högsbo muscovite are suitable secondary reference
Hugo K.H. Olierook +38 more
wiley +1 more source
SC‐550: A Sintered Calcite Reference Material for In Situ U‐Pb Geochronology
Geostandards and Geoanalytical Research, EarlyView.Key Points New calcite reference material (SC‐550) produced by high‐temperature and high‐pressure sintering of nano‐particulate powder from a microbial limestone. Homogeneous U content (2.3 ± 0.4 μg g‐1) and U‐Pb isotope ratios (< 0.6% RSD for 207Pb/206Pb; < 3% RSD for 238U/206Pb).
Lorenzo Tavazzani +7 more
wiley +1 more source