Results 111 to 120 of about 2,026 (243)

Distribution of Rubidium and Cesium and Their Associations with Lithium, Boron, and Potassium in Brine from Dabuxun Salt Lake, Qaidam Basin

Yankuang ceshi
Determining the distribution characteristics of rubidium (Rb) and cesium (Cs) in salt lake brines and their associations with lithium (Li), boron (B) and potassium (K) can facilitate the gradient development and comprehensive, efficient utilization of ...
Chuntao ZHAO, Shouchuan ZHANG, Liang CHEN, Zhiyong LING, Ze LIU, Dongmei YU, Jibin HAN, Jinjun HAN, Hongbo SUN, Jianping WANG   +9 more
doaj   +1 more source

Development of CCMb: A Low‐Mg Calcite Reference Material for In Situ Measurement of δ18O, δ13C and Selected Trace Elements

Geostandards and Geoanalytical Research, EarlyView.
Key Points Low‐Mg calcite RM developed for in situ microanalysis applications in palaeoclimatology (δ18O, δ13C; Mg, Sr m/m). New data for calcite CRM IAEA‐603 (δ18O, δ13C by SIMS and GS‐IRMS; Mg m/m). No detectable IMF effect of Mg on SIMS δ18O determinations for mass fractions < 3650 μg g‐1.
Andreas T. Hertwig, Maciej G. Śliwiński, Irene Cantarero, Richard A. Stern, Carles Fàbrega, Jakub T. Śliwiński, Thomas Ludwig, František Majs, William Nachlas, John H. Fournelle, Xavier Llovet, Rachelle B. Turnier, David Parcerisa, Anna Travé   +13 more
wiley   +1 more source

Assessment and Correction of Non‐Linearity Effects for In Situ Rb‐Sr Geochronology Applied to High 87Rb/86Sr Mica

Geostandards and Geoanalytical Research, EarlyView.
Key Points Measurement of 86Sr at count rates < 1500 cps can result in statistical bias. Non‐linear signals in analogue detection mode (e.g., Rb) present a challenge for accurately dating high 87Rb/86Sr mica (> 1000). Accounting for these considerations, high 87Rb/86Sr mica are dated here with accuracies of ∼ 1%.
Duane C. Petts, William J. Davis, Simon E. Jackson, Jamie A. Cutts, Janina Czas, Alfredo Camacho   +5 more
wiley   +1 more source

Accumulation of 137Cs and 90Sr radionuclides by dominants and co-dominants of birch-pine forest communities in Northern Ukraine

iForest - Biogeosciences and Forestry
Investigation of the post-Chernobyl accumulation of radionuclides in forest communities not only sheds light on the specific ecological aftermath of the disaster but also holds broader significance for enhancing our knowledge of radioactive contamination
Lukash O, Tkaczenko H, Yakovenko O, Szikura A, Kurhaluk N   +4 more
doaj   +1 more source

A Cesium-134 Trap for Isotope Use

The Florida Entomologist, 1975
E. S. Del Fosse, H. L. Cromroy
openaire   +1 more source

Resolving Micrometre‐Scale Zircon Growth in Silicic Systems by 7 μm LA‐MC‐ICP‐MS U‐Pb Dating: Linking Petrology and Geochronology in Silicic Volcanic and Granitic Rocks from Victoria, Australia

Geostandards and Geoanalytical Research, EarlyView.
Key Points 7 μm spot‐diameter LA‐MC‐ICP‐MS analyses yield accurate zircon U‐Pb ages. 1013 Ω amplifier resistors improve low‐signal Pb measurements. Saturn correction protocols minimise down‐hole fractionation effects. We present a systematic evaluation of high spatial‐resolution zircon U‐Pb dating using a Thermo Scientific Neoma multi‐collector ICP‐MS ...
Cristiano Lana, John D. Clemens
wiley   +1 more source

Salt glands in exo‐recretohalophytes: Development, physiological functions, and prospects for improving crop salt tolerance

Journal of Integrative Plant Biology, EarlyView.
This review examines salt glands in exo‐recretohalophytes, in which epidermal stem cells differentiate into unicellular, bicellular, or multicellular salt glands. Salt ions are transported to the leaves via the transpiration stream and enter salt glands through symplastic and apoplastic pathways. Finally, salt glands actively secrete salt ions from the
Limin Wang, Junyan Xie, Yiping Zou, Chunliang Yao, Hai Fan, Chenqi Shen, Wenyan Zhou, Jingran Qin, Xinke Zhang, Baoshan Wang, Jian Zhang, Guoliang Han   +11 more
wiley   +1 more source

Bioaccumulation and translocation of radionuclides heavy metals in Cynodon dactylon: A phytoremediation approach in Al-Dora refinery

Journal of Radiation Research and Applied Sciences
Oil extraction methods such as fracking and drilling can disperse radioactive elements into the environment, posing potential hazards. Certain plants like Bermuda grass can combat this through rhizodegradation, a process that breaks down pollutants into ...
Raghad Mohammed, Hind F. Al-Gburi, Mohammed F. Alotaibi, Naif S. Almuqati, Sultan J. Alsufyani, Mohammed S. Almoiqli, Mubarak M. Albarq, Khalid N. Alharbi   +7 more
doaj   +1 more source

Confirmation of the impact origin of the Late Ordovician Tvären impact structure (southeast Sweden) and emplacement of impactites in a marine setting

Meteoritics &Planetary Science, EarlyView.
Abstract The Tvären structure in southeastern Sweden has been listed as a confirmed marine‐target impact structure for decades. However, to date, no measurements and/or indexed data of planar deformation features in quartz grains from the structure have been published or any other unequivocal evidence of impact.
Katarzyna J. Gajewska, Sanna Alwmark, Mikael Calner, Sylvain Richoz, Jens Ormö, Erik Sturkell, Carl Alwmark   +6 more
wiley   +1 more source

Geochemical investigation of impactites from the Boltysh impact structure and possible relationship to early Danian sediments from the Umbria–Marche Basin, Italy

Meteoritics &Planetary Science, EarlyView.
Abstract Within the Danian Scaglia Rossa Formation appears a regionally correlatable horizon cutting across multiple sections and outcrops within the Umbria–Marche Basin of NE Italy, where it is intercalated with uniform pelagic carbonate successions. This horizon is called “ALE layer” and has tentatively been interpreted as a fine‐grained volcanic ash.
Toni Schulz, Sophia Wernitznig, Christian Koeberl, Bérengère Mougel, Alessandro Montanari, Frédéric Moynier   +5 more
wiley   +1 more source