Search Results - "Lyon, Ian C"
-
1
Experimental partitioning of F and Cl between olivine, orthopyroxene and silicate melt at Earth's mantle conditions
Published in Chemical geology (27-11-2015)“…Halogens have, because of their volatile behavior and incompatibility, the potential to act as key tracers of volatile transport processes within the Earth's…”
Get full text
Journal Article -
2
Dissimilatory Fe(III) Reduction Controls on Arsenic Mobilization: A Combined Biogeochemical and NanoSIMS Imaging Approach
Published in Frontiers in microbiology (22-02-2021)“…Microbial metabolism plays a key role in controlling the fate of toxic groundwater contaminants, such as arsenic. Dissimilatory metal reduction catalyzed by…”
Get full text
Journal Article -
3
Microbial Engineering of Nanoheterostructures: Biological Synthesis of a Magnetically Recoverable Palladium Nanocatalyst
Published in ACS nano (25-05-2010)“…Precious metals supported on ferrimagnetic particles have a diverse range of uses in catalysis. However, fabrication using synthetic methods results in…”
Get full text
Journal Article -
4
Isotopic and Compositional Variations in Single Nuclear Fuel Pellet Particles Analyzed by Nanoscale Secondary Ion Mass Spectrometry
Published in ACS omega (14-01-2020)“…The Collaborative Materials Exercise (CMX) is organized by the Nuclear Forensics International Technical Working Group, with the aim of advancing the…”
Get full text
Journal Article -
5
Interstellar dust laser explorer: a new instrument for elemental and isotopic analysis and imaging of interstellar and interplanetary dust
Published in Review of scientific instruments (01-05-2007)“…We present the performance characteristics of a time-of-flight secondary ion mass spectrometer designed for 157 nm laser postionization of sputtered neutrals…”
Get more information
Journal Article -
6
Improvements in quantification accuracy of inorganic time-of-flight secondary ion mass spectrometric analysis of silicate materials by using C60 primary ions
Published in Rapid communications in mass spectrometry (15-11-2009)“…Time‐of‐flight secondary ion mass spectrometry is a very useful tool for the comprehensive characterization of samples by in situ measurements. A pulsed…”
Get full text
Journal Article -
7
In situ U–Pb dating of 4 billion-year-old carbonates in the martian meteorite Allan Hills 84001
Published in Geochronology (Göttingen. Online) (06-12-2022)“…In situ carbonate U–Pb dating studies have proliferated dramatically in recent years. Almost all these studies have targeted relatively young terrestrial…”
Get full text
Journal Article -
8
Pb nanospheres in ancient zircon yield model ages for zircon formation and Pb mobilization
Published in Scientific reports (23-09-2019)“…Nanospheres of lead (Pb) have recently been identified in zircon (ZrSiO 4 ) with the potential to compromise the veracity of U-Pb age determinations. The key…”
Get full text
Journal Article -
9
MALDI analysis of presolar nanodiamonds: Mass spectrometric determination of the mass distribution of nanodiamonds from meteorites and a technique to manipulate individual nanodiamonds
Published in Meteoritics & planetary science (01-07-2005)“…— This paper describes the use of matrix‐assisted laser desorption and ionization (MALDI) to measure the mass distribution of nanodiamonds extracted from…”
Get full text
Journal Article -
10
Vadose-zone alteration of metaschoepite and ceramic UO2 in Savannah River Site field lysimeters
Published in The Science of the total environment (01-03-2023)“…Uranium dioxide (UO2) and metaschoepite (UO3•nH2O) particles have been identified as contaminants at nuclear sites. Understanding their behavior and impact is…”
Get full text
Journal Article -
11
Trace element depth profiles in presolar silicon carbide grains
Published in Meteoritics & planetary science (01-10-2012)“…– We have analyzed eleven presolar SiC grains from the Murchison meteorite using time‐of‐flight secondary ion mass spectrometry. The Si isotopic compositions…”
Get full text
Journal Article -
12
Oxygen isotopes in chondrule olivine and isolated olivine grains from the CO3 chondrite Allan Hills A77307
Published in Meteoritics & planetary science (01-07-2000)“…— We have measured O‐isotopic ratios in a variety of olivine grains in the CO3 chondrite Allan Hills (ALH) A77307 using secondary ion mass spectrometry in…”
Get full text
Journal Article -
13
Determination of relative sensitivity factors during secondary ion sputtering of silicate glasses by Au+, Au2+ and Au3+ ions
Published in Rapid communications in mass spectrometry (01-01-2010)“…In recent years, Au-cluster ions have been successfully used for organic analysis in secondary ion mass spectrometry. Cluster ions, such as Au(2)(+) and…”
Get full text
Journal Article -
14
Mass-independent fractionation of oxygen isotopes in the mesostasis of a chondrule from the Semarkona LL3.0 ordinary chondrite
Published in Geochimica et cosmochimica acta (01-07-2009)“…A large chondrule from Semarkona, the most primitive ordinary chondrite known, has been discovered to contain a record of mass transport during its formation…”
Get full text
Journal Article -
15
The origin and emplacement of the Freetown Intrusion, Sierra Leone
Published in Journal of African earth sciences (1994) (01-03-2024)“…The Freetown Intrusion in Sierra Leone is a large, layered mafic intrusion. Only a small part of the intrusion appears on land to form the Freetown Peninsula,…”
Get full text
Journal Article -
16
Improvements in quantification accuracy of inorganic time‐of‐flight secondary ion mass spectrometric analysis of silicate materials by using C 60 primary ions
Published in Rapid communications in mass spectrometry (15-11-2009)“…Abstract Time‐of‐flight secondary ion mass spectrometry is a very useful tool for the comprehensive characterization of samples by in situ measurements. A…”
Get full text
Journal Article -
17
Vadose-zone alteration of metaschoepite and ceramic UO 2 in Savannah River Site field lysimeters
Published in The Science of the total environment (01-03-2023)“…Uranium dioxide (UO ) and metaschoepite (UO •nH O) particles have been identified as contaminants at nuclear sites. Understanding their behavior and impact is…”
Get full text
Journal Article -
18
Determination of relative sensitivity factors during secondary ion sputtering of silicate glasses by Au+, Au 2+ and Au 3+ ions
Published in Rapid communications in mass spectrometry (15-01-2010)“…In recent years, Au‐cluster ions have been successfully used for organic analysis in secondary ion mass spectrometry. Cluster ions, such as Au 2+ and Au 3+,…”
Get full text
Journal Article -
19
Determination of relative sensitivity factors during secondary ion sputtering of silicate glasses by Au + , Au and Au ions
Published in Rapid communications in mass spectrometry (15-01-2010)“…Abstract In recent years, Au‐cluster ions have been successfully used for organic analysis in secondary ion mass spectrometry. Cluster ions, such as Au and Au…”
Get full text
Journal Article -
20
Reactions of the feldspar surface with metal ions: Sorption of Pb(II), U(VI) and Np(V), and surface analytical studies of reaction with Pb(II) and U(VI)
Published in Geochimica et cosmochimica acta (15-01-2008)“…Feldspar minerals are thermodynamically unstable in the near-surface environment and their surfaces are well known to react readily with aqueous solutions,…”
Get full text
Journal Article