Oxygen isotope fractionation during calcification in Calcidiscus leptoporus: The influence of carbonate chemistry - ePIC
Oxygen isotope fractionation during calcification in Calcidiscus leptoporus: The influence of carbonate chemistry ... Langer, G. , Ziveri, P. , Geisen, M. and Thoms, S. (2008): Oxygen isotope fractionation during calcification in Calcidiscus ...http://epic.awi.de/18775/
Appendix E) Stable carbon and oxygen isotope composition of Globigerinoides sacculifera of ODP Hole 121-758B
... Dataset homepage ... Appendix E) Stable carbon and oxygen isotope composition of Globigerinoides sacculifera of ODP Hole 121-758B. Occurrence ...https://www.gbif.org/dataset/820ebc70-f762-11e1-a439-00145eb45e9a
Measurements of infiltration rates in urban sewer systems: use of oxygen isotopes
De Benédittis J., Bertrand-Krajewski J.L. Measurements of infiltration rates in urban sewer systems: use of oxygen isotopes, ... Measurements of infiltration rates in urban sewer systems: use of oxygen isotopes ... The oxygen isotopic composition of the Rhône water is roughly 3 ‰ lighter than that of the Saône river, due to the large ... The paper presents the principle of a method to measure infiltration rates in sewer systems based on the use of oxygen isotopes ...http://www.eugris.info/displayresource.aspx?r=5067&Cat=document
Oxygen isotope and trace element zoning in hydrothermal garnets: Windows into large-scale fluid-flow behavior | Geology |...
Asia O-18/O-16 stable isotopes nesosilicates isotopes isotope ratios Commonwealth of Independent States skarn crystal chemistry ... Oxygen isotope and trace element zoning in hydrothermal garnets: Windows into large-scale fluid-flow behavior Douglas E. Crowe ... Douglas E. Crowe, Lee R. Riciputi, Sandra Bezenek, Alexander Ignatiev; Oxygen isotope and trace element zoning in hydrothermal ... Large intracrystalline variations in oxygen isotope composition (,12‰ δ18O) delimit temporal evolution of magmatic and meteoric ...https://pubs.geoscienceworld.org/gsa/geology/article-abstract/29/6/479/192036/oxygen-isotope-and-trace-element-zoning-in?redirectedFrom=fulltext
Oxygen isotope ratios in fossil wood cellulose: Isotopic composition of Eocene- to Miocene-aged fossil wood cellulose | Earth &...
Oxygen isotope ratios in fossil wood cellulose: Isotopic composition of Eocene- to Miocene-aged fossil wood cellulose. Authors ...http://www.sas.upenn.edu/earth/content/oxygen-isotope-ratios-fossil-wood-cellulose-isotopic-composition-eocene-miocene-aged-fossil
The proportion of remineralized nitrate on the ice-covered eastern Bering Sea shelf evidenced from the oxygen isotope ratio of...
The proportion of remineralized nitrate on the ice-covered eastern Bering Sea shelf evidenced from the oxygen isotope ratio of ... Constraints from the nitrogen and oxygen isotopes of nitrate, Geochem. Geophys. Geosyst., 10, Q11016, doi:10.1029/2009GC002468. ... The proportion of remineralized nitrate on the ice-covered eastern Bering Sea shelf evidenced from the oxygen isotope ratio of ... Coupled nitrogen and oxygen isotope measurements of nitrate along the eastern North Pacific margin, Global Biogeochem. Cycles, ...http://onlinelibrary.wiley.com/doi/10.1002/gbc.20075/references?globalMessage=0
Sorption of Aqueous Fe(ii) on Goethite Investigated with Stable Oxygen Isotopes - Semantic Scholar
The oxygen mixing extents are 3.95 % more for goethite and 9.66 % more for ferrihydrite than their respective controls within ... First, O labeled iron(III) minerals were used in batch sorption reactors to study the exchange of oxygen atom within the Fe(II) ... Results showed a much lesser extent of oxygen mixing than reported Fe mixing from previous studies, even when dissolved Fe(II) ... More recent studies with Fe isotope tracers found near-complete mixing of structural Fe atoms with bulk solution dissolved Fe( ...https://www.semanticscholar.org/paper/Sorption-of-Aqueous-Fe-ii-on-Goethite-Investigated-/bb9e735a69d3a03e5cb90a2848c6834724a7ee07
ACP - Abstract - Precipitation isoscape of high reliefs: interpolation scheme designed and tested for monthly resolved...
Abstract. Stable oxygen isotope composition of atmospheric precipitation (δ18Op) was scrutinized from 39 stations distributed ... interpolation scheme designed and tested for monthly resolved precipitation oxygen isotope records of an Alpine domain Z. Kern2 ... interpolation scheme designed and tested for monthly resolved precipitation oxygen isotope records of an Alpine domain, Atmos. ... Grids and isotope distribution maps of the monthly δ18Op have been calculated over the study region for 1995-1996. The adopted ...https://www.atmos-chem-phys.net/14/1897/2014/
Oxygen isotope evidence for the late Cenozoic development of an orographic rain shadow in eastern Washington, USA | Geology |...
... isotope ratios isotopes Neogene neotectonics silicates pyroclastics Grant County Washington tectonics stable isotopes ... Oxygen isotope evidence for the late Cenozoic development of an orographic rain shadow in eastern Washington, USA Akinori ... Akinori Takeuchi, Peter B. Larson; Oxygen isotope evidence for the late Cenozoic development of an orographic rain shadow in ... using oxygen isotope ratios (δ18O) of ancient meteoric water recorded in authigenic smectites. The δ18O values of authigenic ...https://pubs.geoscienceworld.org/gsa/geology/article-abstract/33/4/313/29586/oxygen-isotope-evidence-for-the-late-cenozoic?redirectedFrom=fulltext
Oxygen isotopes | LCZO-Data
Oxygen isotopes. CARBON AND OXYGEN STABLE ISOTOPES IN THE TOA BAJA WELL, PUERTO RICO: IMPLICATIONS FOR BURIAL DIAGENESIS AND ... Carbon and oxygen stable isotopes in the toa-baja well, puerto-rico - implications for burial diagenesis and hydrocarbon ... The oxygen isotropic composition (delta 18O) of coral skeletons reflects a combination of sea surface temperature (SST) and the ... Evaluation of the fidelity of isotope records as an environmental proxy in the coral Montastraea. Tue, 01/24/2012 - 12:52 - ...https://www.sas.upenn.edu/lczodata/category/research-paper-keywords/oxygen-isotopes
Oxygen-isotope Analysis | Encyclopedia.com
The ratio of the stable oxygen isotopes , 18O and 16O, is temperature dependent in water, 18O increasing as temperature ... oxygen-isotope analysis* Method for estimating past ocean temperatures. ... oxygen-isotope analysis Method for estimating past ocean temperatures. The ratio of the stable oxygen isotopes, 18O and 16O, is ... oxygen-isotope analysis A method for estimating past ocean temperatures. The ratio of the stable oxygen isotopes, 18O and 16O, ...https://www.encyclopedia.com/earth-and-environment/ecology-and-environmentalism/environmental-studies/oxygen-isotope-analysis
Variations in Salinity and Oxygen Isotopes
The most abundant isotopes of oxygen in seawater are oxygen sixteen (16O) and oxygen eighteen (18O). ... Different atoms of the same element are called isotopes. All oxygen atoms have 16 protons and 16 electrons, but some oxygen ... You know that water is made of hydrogen and oxygen atoms arranged in molecules of H2O, but you may not be aware that there are ...https://www.classzone.com/books/earth_science/terc/content/investigations/es2307/es2307page03.cfm?chapter_no=investigation
Displaying 5 dataset(s) described by keyword Oxygen isotopes
Displaying 5 datasets found described by keyword 'Oxygen isotopes'. Diatom Silica Oxygen Isotope Records from the Late ... Isotope analysis data from NERC grant "The Processes that Shape the Continental Record" NERC grant NE/J021822/1 Isotope ... Eocene to Oligocene-aged benthic foraminifer isotope and sediment-derived neodymium isotopes from Ocean Drilling Program Sites ... Water isotope data from Yaal Chac (lake), nearby groundwater and local precipitation (NERC grant NE/K00610X/1) Surface waters ...http://www.bgs.ac.uk/discoverymetadata/keywords/3818.html
Scientists Find Extreme Oxygen Isotope Variation in Meteorite | NASA
Through oxygen isotopic analysis, the team found that the CAI moved farther from the sun, where the CAI exchanged oxygen with ... and the University of Chicago measured the concentrations of oxygen isotopes found in a calcium-aluminum-rich inclusion (CAI) ... Oxygen isotopic measurements in the core and outer rim of a calcium-aluminum-rich inclusion contained in the Allende meteorite ... "To find, in one grain of nebular dust, values that systematically span nearly the entire oxygen isotopic range is remarkable. ...https://www.nasa.gov/centers/johnson/news/releases/2011/J11-007.html
Oxygen isotopes improve weather predictability in Niger
... and the oxygen isotope ratio decreases from the equator to the poles. Thus, the oxygen isotope ratio found in a water sample ... Water containing the heavier oxygen-18 isotope rains preferentially over the lighter oxygen-16 version, lighter water ... Oxygen isotopes improve weather predictability in Niger. May 17, 2012, American Geophysical Union For the African nation of ... In the summer of 2006, researchers measured the oxygen isotope ratio of rainwater collected in the nation's capital, Niamey, to ...https://phys.org/news/2012-05-oxygen-isotopes-weather-niger.html
AGDC Releases WAIS Divide WDC06A Oxygen Isotope Record Data | The Drift
... the WAIS Divide WDC06A Oxygen Isotope Record. This data set contains complete low resolution (0.25 to 100 cm) oxygen isotope ... AGDC Releases WAIS Divide WDC06A Oxygen Isotope Record Data. May 5, 2015. ...http://nsidc.org/the-drift/data-update/agdc-releases-wais-divide-wdc06a-oxygen-isotope-record-data/
Oxygen Isotopes Show Local Climate Distortion - Freedoms Phoenix
Oxygen Isotopes Show Local Climate Distortion 07-13-2012. • arclein around 950 to 1250 C.E. While this time period is known as ...https://www.freedomsphoenix.com/News/114878-2012-07-13-oxygen-isotopes-show-local-climate-distortion.htm
How Does Oxygen Isotope Dating Work
We have already discussed the importance of isotopes for rock dating. The ratio of these two oxygen isotopes has changed over ... to paleoclimatologists because they combine an oxygen-isotope record with precise dating. Oxygen Isotopes in Enamel Carbonate ... Oxygen isotope ratio cycles are cyclical variations in the ratio of the abundance of oxygen with. Additional factors can affect ... We have already discussed the importance of isotopes for rock dating. The ratio of these two oxygen isotopes has changed over ...http://bruceforstaterep.com/how-does-oxygen-isotope-dating-work_dg.html
Mass-independent fractionation of oxygen isotopes during thermal decomposition of carbonates - Open Research Online
Mass-independent fractionation of oxygen isotopes during thermal decomposition of carbonates.. Proceedings of the National ... Investigation of oxygen three-isotope behavior during thermal decomposition of naturally occurring carbonates of calcium and ... High-precision measurements of the attendant three-isotope fractionation line, and consequently the magnitude of the isotopic ... a major exception being the formation of ozone from diatomic oxygen in the presence of UV radiation or electrical discharge. ...http://oro.open.ac.uk/4834/
Oxygen isotope ratio cycle - Wikipedia
Oxygen isotope ratio cycles are cyclical variations in the ratio of the abundance of oxygen with an atomic mass of 18 to the ... Oxygen isotope analysis considers only the ratio of 18O to 16O present in a sample. The calculated ratio of the masses of each ... Oxygen (chemical symbol O) has three naturally occurring isotopes: 16O, 17O, and 18O, where the 16, 17 and 18 refer to the ... The carbon dioxide provides two of the oxygen atoms in the calcite. The calcium must rob the third from the water. The isotope ...https://en.wikipedia.org/wiki/Oxygen_isotope_ratio_cycle
The oxygen isotope composition of selected quartzites of White Pine County, Nevada, and nearby areas (Microform, 1986) ...
The oxygen isotope composition of selected quartzites of White Pine County, Nevada, and nearby areas. [Donald Edward Lee; ... The oxygen isotope composition of selected quartzites of White Pine County, Nevada, and nearby areas. Author:. Donald Edward ... The oxygen isotope composition of selected quartzites of White Pine County, Nevada, and nearby areas/Donald Edward Lee; Irving ... schema:name "The oxygen isotope composition of selected quartzites of White Pine County, Nevada, and nearby areas"@en ;. schema ...http://www.worldcat.org/title/oxygen-isotope-composition-of-selected-quartzites-of-white-pine-county-nevada-and-nearby-areas/oclc/15342568
Oxygen isotope constraints on the petrogenesis of Aleutian arc magmas | Geology | GeoScienceWorld
Oxygen isotope constraints on the petrogenesis of Aleutian arc magmas Bradley S. Singer Bradley S. Singer ... Bradley S. Singer, James R. O'Neil, James G. Brophy; Oxygen isotope constraints on the petrogenesis of Aleutian arc magmas. ... Oxygen isotope thermometry and pyroxene and oxide equilibria indicate that differentiation occurred between 1150 ±100 °C ( ... One andesite, however, yields concordant oxygen isotope temperatures of ∼850 ±100 °C, and a two-pyroxene temperature of 920 ±50 ...https://pubs.geoscienceworld.org/gsa/geology/article-abstract/20/4/367/205733/Oxygen-isotope-constraints-on-the-petrogenesis-of
Dienekes' Anthropology Blog: 02/2013
With the aid of strontium, carbon, and oxygen isotopes, it is now possible to develop more direct means for determining the ... New strontium isotope data from the Danube Gorges in the north-central Balkans, an area characterized by a rich burial record ... Strontium isotopes document greater human mobility at the start of the Balkan Neolithic Dušan Borić and T. Douglas Price ... Strontium isotope (87Sr/86Sr) variability in the Nile Valley: Identifying residential mobility during ancient Egyptian and ...http://dienekes.blogspot.com/2013_02_01_archive.html?m=0
ICSD for WWW
DIS oxygen : DISordered oxygen.. *t74 : Test code t74 : Coordinates are those given in the paper but are obviously wrong. (see ... Hydrogen and its isotopes, when they occur in the positive oxidation state, are disregarded. ... NOM O with 2 elements (Wrong! Oxygen is itself a NOn-Metal Instead use NOT MET O with 2 elements). ...http://icsd.ill.fr/icsd/index.php?action=Search&nb_rows=10&authors=%22Cornelius,+A.L.%22
Source components of the Gran Canaria (Canary Islands) shield stage magmas : evidence from olivine composition and Sr-Nd-Pb...
Oxygen isotope heterogeneity of the mantle beneath the Canary Islands : insights from olivine phenocrysts Gurenko, Andrey A. ... Canary Islands; Gran Canaria; ODP Leg 157; Olivine; Mantle plume; Peridotite; Pyroxenite; Radiogenic isotopes; Ocean crust; ... A relatively narrow range of oxygen isotopic ratios (δ18O = 5.05.4‰) is preserved in olivine of mantle xenoliths, mid-ocean ... lavas with their bulk rock Sr-Nd-Pb isotope compositions (87Sr/86Sr = 0.70315- 0.70331, 143Nd/144Nd = 0.51288-0.51292, 206Pb/ ...https://darchive.mblwhoilibrary.org/handle/1912/5025