Isotopes of iron
Iron-58 is a stable isotope of iron. It can be used to combat anemia and low iron absorption, to metabolically track iron- ... "Iron-58, Iron-58 Isotope, Enriched Iron-58, Iron-58 Metal". www.buyisotope.com. Retrieved 2023-06-28. Rugel, G.; Faestermann, T ... Iron-58 is also an assisting reagent in the synthesis of superheavy elements. Iron-60 is an iron isotope with a half-life of ... Articles with short description, Short description is different from Wikidata, Isotopes of iron, Iron, Lists of isotopes by ...
Trace metal stable isotope biogeochemistry
... metallic iron (Fe0), ferrous iron (Fe2+), and ferric iron (Fe3+). Ferrous iron is the reduced form of iron, and ferric iron is ... Naturally occurring iron has four stable isotopes, 54Fe, 56Fe, 57Fe, and 58Fe. Stable iron isotopes are described as the ... Iron isotopes can also be utilized to better understand iron absorption in humans. The iron isotopic composition of blood ... For example, the combination of iron concentration and iron isotope data can use to determine the sources of oceanic iron. In ...
Isotopes of cobalt
The main decay products before 59Co are iron isotopes and the main products after are nickel isotopes. Radioactive isotopes can ... The isotopes of cobalt range in atomic weight from 47Co to 75Co. The main decay mode for isotopes with atomic mass less than ... Table of the Isotopes". In Lide, David R. (ed.). CRC Handbook of Chemistry and Physics (85th ed.). Boca Raton, Florida: CRC ... For example, 57Co is produced by cyclotron irradiation of iron. The main reaction is the (d,n) reaction 56Fe + 2H → n + 57Co. ...
John J. Livingood
Schuh, A.; Fritsch, A.; Heim, M.; Shore, A.; Thoennessen, M. (2010-11-01). "Discovery of the iron isotopes". Atomic Data and ... John Livingood, 83, Dies; Pioneer in Artificial Isotopes". The New York Times. 1986-07-26. ISSN 0362-4331. Retrieved 2023-02-03 ... iodine-131 and iron-59. Livingood was born in Cincinnati, Ohio. He studied at Princeton University, gaining a Ph.D. in 1929 on ... "Discovery of the cobalt isotopes". Atomic Data and Nuclear Data Tables. 96 (6): 848-854. arXiv:0909.0864. Bibcode:2010ADNDT..96 ...
Ariel Anbar
Anbar, A. D.; Roe, J. E.; Barling, J.; Nealson, K. H. (2000). "Nonbiological Fractionation of Iron Isotopes". Science. 288 ( ... His group was the first to report natural fractionation of molybdenum isotopes, including how and why molybdenum isotopes ... fifty million years before the Great Oxidation Event Anbar's group has also worked on iron isotopes, demonstrating abiotic ... Anbar has also been involved in development of method to use calcium isotopes to study bone disease. Anbar led the NASA ...
Iron cycle
Biogeochemical cycling of iron isotopes". Science. 309 (5737): 1025-7. doi:10.1126/science.1112552. PMID 16099969. S2CID ... Iron primarily is present in particulate phases as ferric iron, and the dissolved iron fraction is removed out of the water ... Iron fertilization Iron-oxidizing bacteria Nickelsen L, Keller D, Oschlies A (2015-05-12). "A dynamic marine iron cycle module ... Emerson D (2016). "The Irony of Iron - Biogenic Iron Oxides as an Iron Source to the Ocean". Frontiers in Microbiology. 6: 1502 ...
Neoproterozoic oxygenation event
... precipitated chromium isotope ratios in sediments abundant in ferric iron accurately reflect seawater chromium isotope ratios ... Further positive carbon isotope excursions occurred during the Cryogenian. Although several negative carbon isotope excursions ... During the Early Ediacaran, the shift in uranium isotopes occurred in tandem with enrichment in light carbon isotopes. During ... "Oxygenation of Ediacaran Ocean recorded by iron isotopes". Geochimica et Cosmochimica Acta. 140: 80-94. Bibcode:2014GeCoA.140 ...
Proterozoic
"Oxygenation of Ediacaran Ocean recorded by iron isotopes". Geochimica et Cosmochimica Acta. 140: 80-94. doi:10.1016/j.gca. ... Such massive iron oxide formations are not found in older rocks.: 324 The oxygen buildup was probably due to two factors: ... Their accumulation ceased after 1.9 billion years ago, after the iron in the oceans had all been oxidized.: 324 Red beds, which ... Until roughly 2.3 billion years ago, oxygen was probably only 1% to 2% of its current level.: 323 The banded iron formations, ...
Iron
... has four stable isotopes: 54Fe (5.845% of natural iron), 56Fe (91.754%), 57Fe (2.119%) and 58Fe (0.282%). Twenty-four ... Iron and steel industry Iron cycle Iron nanoparticle Iron-platinum nanoparticle Iron fertilization - proposed fertilization of ... making wrought iron from pig iron How iron was extracted in the 19th century Iron furnace in Columbus, Ohio, 1922 The pig iron ... Iron forms compounds mainly in the oxidation states +2 (iron(II), "ferrous") and +3 (iron(III), "ferric"). Iron also occurs in ...
Mundrabilla (meteorite)
Kirsten, Till Arnulf (1973). "Isotope studies in the Mundrabilla iron meteorite". Meteoritics. 8: 400. Bibcode:1973Metic...8.. ... The meteorite is 65-75% iron-nickel, including 35% by volume of troilite (iron sulphide), with inclusions of schreibersite, ... In 1911 an iron meteorite fragment of 112 g was found by Harry Kent, foreman in charge of camels for the Western Australian ... In 1918 a third similar small iron meteorite of 99 g was found in the area by A. Ewing, named Premier Downs III. In 1962 a ...
Iron-56
... (56Fe) is the most common isotope of iron. About 91.754% of all iron is iron-56. Of all nuclides, iron-56 has the ... Isotopes of iron Iron star Nuclear Binding Energy Dyson, Freeman J. (1979). "Time without end: Physics and biology in an open ... With 8.8 MeV binding energy per nucleon, iron-56 is one of the most tightly bound nuclei. Nickel-62, a relatively rare isotope ... Articles with short description, Short description matches Wikidata, Isotope content page, All articles with unsourced ...
Type Ia supernova
... most prominently isotopes close to the mass of iron (iron-peak elements). The radioactive decay of nickel-56 through cobalt-56 ... subclass that exhibits particularly strong iron absorption lines and abnormally small silicon features, and 1991bg-likes, an ... to iron-56 produces high-energy photons, which dominate the energy output of the ejecta at intermediate to late times. The use ...
Banded iron formation
Iron isotope ratios in the oldest banded iron formations (3700-3800 Ma), at Isua, Greenland, are best explained by assuming ... Paleoproterozoic banded iron formations are found in the Iron Range and other parts of the Canadian Shield. The Iron Range is a ... Banded iron formations account for more than 60% of global iron reserves and provide most of the iron ore presently mined. Most ... "Iron isotopes constrain biologic and abiologic processes in banded iron formation genesis". Geochimica et Cosmochimica Acta. 72 ...
Moeraki Boulders
This is demonstrated by studies of their composition; specifically the magnesium and iron content, and stable isotopes of ... Pearson, M.J., and C.S. Nelson, 2005, Organic geochemistry and stable isotope composition of New Zealand carbonate concretions ...
Anat Shahar
Shahar measured the silicon isotope fractionation during silicate and iron interaction in experiments that simulate the ... "High-temperature Si isotope fractionation between iron metal and silicate". Geochimica et Cosmochimica Acta. 75 (23): 7688-7697 ... The experiments suggest that silicon may be one of the lighter elements that make up Earth's core, along with iron and nickel. ... "Nickel helps scientists iron out a core planetary mystery , Cosmos". cosmosmagazine.com. Retrieved 2017-12-29. "Anat Shahar - ...
Kemp Caldera
Klar, Jessica K. (2014-09-19). Iron isotopes in seawater:method development and results from the Atlantic ocean (phd thesis). ... Hawkes, Jeffrey Alistair (2013-09-01). Iron speciation in hydrothermal plumes (phd thesis). University of Southampton. Hepburn ... "Hf isotope evidence for selective mobility of high-field-strength elements in a subduction setting: South Sandwich Islands". ...
Ernest Lawrence
It was used to bombard iron and produced its first radioactive isotopes in June. As it was easier to raise money for medical ... Separating uranium isotopes was difficult because the two isotopes have very nearly identical chemical properties, and could ... One of its isotopes, plutonium-239, could undergo nuclear fission which provided another way to make an atomic bomb. Lawrence ... Separating isotopes with a mass spectrometer was a technique Oliphant had pioneered with lithium in 1934. Lawrence began ...
Robley D. Evans (physicist)
... determined by radioactive isotopes of iron and iodine. The Journal of clinical investigation" (PDF). 25 (6): 848-857. {{cite ... "The use of two radioactive isotopes of iron in tracer studies of erythrocytes" (PDF). The Journal of Clinical Investigation. 25 ... and in the use of radioactive isotopes for medical purposes." He received the Presidential Certificate of Merit, the Theobald ...
Chen Xianhui
"A large iron isotope effect in SmFeAsO1-xFx and Ba1-xKxFe2As2". Nature. 459 (7243): 64-67. arXiv:0810.2694. Bibcode:2009Natur. ... in 2015 and is known for his breakthroughs on iron-based superconductors. He won the State Natural Science Award (First Class) ...
Hydrothermal mineral deposit
Sahlström, Fredrik; Troll, Valentin R.; Palinkaš, Sabina Strmić; Kooijman, Ellen; Zheng, Xin-Yuan (2022-08-29). "Iron isotopes ... meaning that it was a low temperature sphalerite rich in zinc and low in iron. Ore deposition occurred close to the surface, ...
Volcanogenic massive sulfide ore deposit
Sahlström, Fredrik; Troll, Valentin R.; Palinkaš, Sabina Strmić; Kooijman, Ellen; Zheng, Xin-Yuan (2022-08-29). "Iron isotopes ... The mineralogy of VMS consists of over 90% iron sulfide, mainly in the form of pyrite, with chalcopyrite, sphalerite and galena ...
Iron-55
Isotopes of iron (Articles with short description, Short description matches Wikidata, Isotope content page, Isotopes of iron) ... of the two most abundant isotopes iron-54 and iron-56 with neutrons yields iron-55. Most of the observed iron-55 is produced in ... Iron-55 (55Fe) is a radioactive isotope of iron with a nucleus containing 26 protons and 29 neutrons. It decays by electron ... Iron-55 is most effectively produced by irradiation of iron with neutrons. The reaction (54Fe(n,γ)55Fe and 56Fe(n,2n)55Fe) ...
Nonmagmatic meteorite
While the parent body of the meteorites cools off, the metallic core crystallizes into meteoric iron, an iron-nickel alloy. In ... Clues from Sm and W isotopes". Geochimica et Cosmochimica Acta. 85: 200-212. doi:10.1016/j.gca.2012.02.012. Wasson, J.T; ... Nonmagmatic meteorite (also nonmagmatic iron meteorite) is a deprecated term formerly used in meteoritics to describe iron ... Three iron meteorite groups are described as being part of the nonmagmatic meteorites. They share a number of similarities, the ...
Nicolas Dauphas
He used iron isotopes to study how the iron biogeochemical cycle of the Earth changed through time. He established that Mars ... Nicolas Dauphas (born December 10, 1975) is a planetary scientist and isotope geochemist. He is a professor of geochemistry and ... His research focuses on isotope geochemistry and cosmochemistry. He studies the origin and evolution of planets and other ... objects in the solar system by analyzing the natural distributions of elements and their isotopes using mass spectrometers. ...
Tanja Bosak
Sim, Min Sub; Ono, Shuhei; Bosak, Tanja (2012-09-19). "Effects of Iron and Nitrogen Limitation on Sulfur Isotope Fractionation ... With Min Sub Sim and Shuhei Ono, Bosak found that biological sulfate reduction can produce large stable isotope fractionations ... The authors interpreted this as evidence that large sulfur isotope fractionations are not unequivocally indicative of sulfur ... Further studies suggested that microbial sulfate reduction and heterotrophy together, or that iron and nitrogen limitation ...
Marjan Mashkour
"Stable isotope evidence for palaeodiets in southern Turkmenistan during Historical period and Iron Age". Journal of ... from the Neolithic to the Iron Age". Antiquity. 73 (279): 65-76. doi:10.1017/S0003598X00087846. ISSN 0003-598X. S2CID 163599860 ... ", ("Hunting and farming from the Neolithic to the Iron Age in the plain of Qazvin (Iran). Archaeozoological study sites Zagheh ...
122 iron arsenide
The Tc of 38 K in Ba1−xKxFe2As2 (x ≈ 0.4) superconductor shows the inverse iron isotope effect. In addition to the iron ... The 122 iron arsenide unconventional superconductors are part of a new class of iron-based superconductors. They form in the ... The second doping method is to directly dope the iron-arsenide layer by replacing iron with cobalt. Superconducting transition ... Sadovskii, Mikhail V. (2008). "High-temperature superconductivity in iron-based layered iron compounds". Physics-Uspekhi. 51 ( ...
Δ34S
"Variations in the sulfur isotope composition of troilite from the Cañon Diablo iron meteorite". Geochimica et Cosmochimica Acta ... Of the 25 known isotopes of sulfur, four are stable. In order of their abundance, those isotopes are 32S (94.93%), 34S (4.29 ... δ13C δ15N Isotopic signature Isotope analysis Isotope geochemistry Audi G, Bersillon O, Blachot J, Wapstra AH (December 2003 ... The δ34S (pronounced delta 34 S) value is a standardized method for reporting measurements of the ratio of two stable isotopes ...
Hafnium-tungsten dating
"Neutron capture on Pt isotopes in iron meteorites and the Hf-W chronology of core formation in planetesimals". Earth and ... Radiometric dating Isotope geochemistry Planetary differentiation Kleine T, Walker RJ (August 2017). "Tungsten Isotopes in ... For iron meteorites hafnium-tungsten dating yields ages ranging from less than a million years after the formation of the first ... For example, while 182W, 183W, 184W and 186W are all produced by the r- and s-processes, the rare isotope tungsten-180 is only ...
Supernova nucleosynthesis
... isotopes of the elements heavier than iron from preexisting heavier isotopes. In 1946, Fred Hoyle proposed that elements ... The nickel-56 isotope has one of the largest binding energies per nucleon of all isotopes, and is therefore the last isotope ... This limits their modest yields returned to interstellar gas to carbon-13 and nitrogen-14, and to isotopes heavier than iron by ... synthesizing about a solar mass of radioactive 56Ni isotopes, together with smaller amounts of other iron peak elements. The ...