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Journal articleKersten M, Xiao T, Kreissig K, et al., 2014,
Tracing Anthropogenic Thallium in Soil Using Stable Isotope Compositions
, ENVIRONMENTAL SCIENCE & TECHNOLOGY, Vol: 48, Pages: 9030-9036, ISSN: 0013-936X- Author Web Link
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- Citations: 47
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Journal articleBridgestock LJ, Williams H, Rehkaemper M, et al., 2014,
Unlocking the zinc isotope systematics of iron meteorites
, EARTH AND PLANETARY SCIENCE LETTERS, Vol: 400, Pages: 153-164, ISSN: 0012-821X- Author Web Link
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- Citations: 30
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Journal articleSephton MA, Carter JN, 2014,
Statistics Provide Guidance for Indigenous Organic Carbon Detection on Mars Missions
, Astrobiology, Vol: 14, Pages: 706-713, ISSN: 1531-1074 -
Journal articleSephton MA, 2014,
Astrobiology can help space science, education and the economy
, Space Policy, Vol: 30, Pages: 146-148, ISSN: 0265-9646 -
Journal articleMurphy K, Rehkaemper M, van de Flierdt T, 2014,
Comment on "The isotopic composition of cadmium in the water column of the South China Sea"
, GEOCHIMICA ET COSMOCHIMICA ACTA, Vol: 134, Pages: 335-338, ISSN: 0016-7037- Author Web Link
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- Citations: 4
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Journal articleMuxworthy AR, Krasa D, Williams W, et al., 2014,
Paleomagnetic recording fidelity of nonideal magnetic systems
, GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS, Vol: 15, Pages: 2254-2261, ISSN: 1525-2027- Author Web Link
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- Citations: 6
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Journal articleCrocket KC, Lambelet M, de Flierdt TV, et al., 2014,
Measurement of fossil deep-sea coral Nd isotopic compositions and concentrations by TIMS as NdO<SUP>+</SUP>, with evaluation of cleaning protocols
, CHEMICAL GEOLOGY, Vol: 374, Pages: 128-140, ISSN: 0009-2541- Author Web Link
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- Citations: 24
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Journal articleMontgomery W, Watson JS, Sephton MA, 2014,
An organic cosmo-barometer: Distinct pressure and temperature effects for methyl substituted polycyclic aromatic hydrocarbons
, Astrophysical Journal, Vol: 784, ISSN: 0004-637XThere are a number of key structures that can be used to reveal the formation and modification history of organic matter in the cosmos. For instance, the susceptibility of organic matter to heat is well documented and the relative thermal stabilities of different isomers can be used as cosmothermometers. Yet despite being an important variable, no previously recognized organic marker of pressure exists. The absence of a pressure marker is unfortunate considering our ability to effectively recognize extraterrestrial organic structures both remotely and in the laboratory. There are a wide variety of pressures in cosmic settings that could potentially be reflected by organic structures. Therefore, to develop an organic cosmic pressure marker, we have used state-of-the-art diamond anvil cell (DAC) and synchrotron-source Fourier transform infrared (FTIR) spectroscopy to reveal the effects of pressure on the substitution patterns for representatives of the commonly encountered methyl substituted naphthalenes, specifically the dimethylnaphthalenes. Interestingly, although temperature and pressure effects are concordant for many isomers, pressure appears to have the opposite effect to heat on the final molecular architecture of the 1,5-dimethylnaphthalene isomer. Our data suggest the possibility of the first pressure parameter or "cosmo-barometer" (1,5-dimethylnaphthalene/total dimethylnaphthalenes) that can distinguish pressure from thermal effects. Information can be obtained from the new pressure marker either remotely by instrumentation on landers or rovers or directly by laboratory measurement, and its use has relevance for all cases where organic matter, temperature, and pressure interplay in the cosmos. © 2014. The American Astronomical Society. All rights reserved.
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- Citations: 5
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Journal articleHettmann K, Kreissig K, Rehkaemper M, et al., 2014,
Thallium geochemistry in the metamorphic Lengenbach sulfide deposit, Switzerland: Thallium-isotope fractionation in a sulfide melt
, AMERICAN MINERALOGIST, Vol: 99, Pages: 793-803, ISSN: 0003-004X- Author Web Link
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- Citations: 26
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Journal articleBray VJ, Collins GS, Morgan JV, et al., 2014,
Hydrocode simulation of Ganymede and Europa cratering trends - How thick is Europa's crust?
, ICARUS, Vol: 231, Pages: 394-406, ISSN: 0019-1035- Author Web Link
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- Citations: 42
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Journal articleLarner F, Gulson B, McCall M, et al., 2014,
An inter-laboratory comparison of high precision stable isotope ratio measurements for nanoparticle tracing in biological samples
, JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY, Vol: 29, Pages: 471-477, ISSN: 0267-9477- Author Web Link
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- Citations: 13
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Journal articleHettmann K, Marks MAW, Kreissig K, et al., 2014,
The geochemistry of Tl and its isotopes during magmatic and hydrothermal processes: The peralkaline Ilimaussaq complex, southwest Greenland
, CHEMICAL GEOLOGY, Vol: 366, Pages: 1-13, ISSN: 0009-2541- Author Web Link
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- Citations: 27
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Conference paperAlmeida TP, Muxworthy AR, Williiams W, et al., 2014,
Hydrothermal synthesis, off-axis electron holography and magnetic properties of Fe3O4 nanoparticles
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Journal articleFraser WT, Watson JS, Sephton MA, et al., 2014,
Changes in spore chemistry and appearance with increasing maturity
, Review of Palaeobotany and Palynology, Vol: 201, Pages: 41-46, ISSN: 0034-6667 -
Conference paperRoberts O, Muxworthy AR, Mac Niocaill C, et al., 2014,
High-latitude paleomagnetic and Ar-Ar study of 0-6 Ma lavas from eastern Iceland: Contribution to the time-averaged field initiative (poster)
, Magnetic Interactions -
Conference paperLam C, Muxworthy AR, Green D, 2014,
Determining the magnetic signature of London’s air pollution (poster)
, Magnetic Interactions -
Conference paperEmmerton S, Muxworthy AR, 2014,
Correlating biodegradation to magnetisation in oil bearing sedimentary rocks (poster)
, Magnetic Interactions -
Conference paperEmmerton S, Muxworthy AR, Sephton MA, 2014,
Dating hydrocarbon seeps – the Mupe Bay Mystery (poster)
, Magnetic Interactions -
Conference paperAlmeida T, Kasama TP, Muxworthy AR, et al., 2014,
Oxidation of pseudo-single domain Fe3O4 particles and associated magnetic response examined by complementary environmental TEM, off-axis electron holography, Mössbauer spectroscopy and SuperSTEM analysis
, Magnetic Interactions -
Conference paperShah J, Muxworthy AR, Matzka J, et al., 2014,
Palaeomagnetic evidence for the persistence of the South-Atlantic geomagnetic anomaly
, Magnetic Interactions
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