Comprehensive Organic Analysis of Antartic Micrometeorites (2008)
Wilson, R. C., Dobrica, E., Pearson, V. K., Turner, D. C., Gilmour, I.
Introduction: Micrometeorites (MMs) are thought to be significant contributors of organic material to the early Earth [1], and a variety of techniques have been employed to identify their organic...
The labelling of meteoritic organic material using osmium tetroxide vapour impregnation (2007)
Pearson, V. K., Kearlsey, A. T., Sephton, M. A., Gilmour, I.
We present a method for labelling and locating organic material in extraterrestrial samples in order to determine its spatial arrangement in relation to inorganic components. We have taken a suite of...
Organic constitution of the CO3 chondrites and implications for asteroidal processes (2007)
Pearson, V.K., Greenwood, R.G., Morgan, G.H., Turner, D., Raade, G., Roaldset, E., ...
This paper reports the organic constitution of the CO3 chondrites identified by 4D TOFMS in order to decipher the composition, structure and alteration history of the CO3 parent asteroid.
Identification of Trace Organic Components in the CR Chondrites by 4D TOFMS (2007)
Pearson, V. K., Morgan, G. H., Turner, D., Perronnet, M., Gilmour, I.
This paper reports preliminary results of a 4D TOFMS study of CR chondrite organic material, highlighting the low-level organic species that may further reveal the complexity of parent body...
Free dicarboxylic and aromatic acids in the carbonaceous chondrites Murchison and Orgueil (2006)
Martins, Z., Watson, J.S., Sephton, M.A., Botta, O., Ehrenfreund, P., Gilmour, I.
We have analyzed an important fraction of the free carboxylic acids present in water extracts of the CM2 chondrite Murchison and the Cl I chondrite Orgueil using gas chromatography-mass spectrometry...
The effect of atmospheric entry heating on micrometeorite volatile composition (2006)
Wilson, R. C., Pearson, V. K., Franchi, I. A., Wright, I. P., Gilmour, I.
Structural and isotopic analysis of organic matter in carbonaceous chondrites (2005)
The principal focus of this review is on the analysis of the organic matter in the Murchison CM2 chondrite, together with data from other meteorites where it can be shown that they have not been...
Pyrolysis-GC×GC-TOFMS to characterize carbonaceous chondrites (2005)
Watson, J. S., Pearson, V. K., Gilmour, I., Pillinger, C. T., Turner, D., Perkins, R., ...
Using pyrolysis-GCxGC-TOFMS to analyze organic carbon in carbonaceous chondrites gives a massive increase in both sensitivity and structural information from samples when compared to traditional...
Macromolecular organic acids in the Murchison meteorite (2005)
Watson, J. S., Sephton, M. A., Gilmour, I.
This study has detected bound organic acids within the Murchison meteorite organic macromolecule. Benzoic acid was the most abundant compound; other abundant compounds include C1 and C2 benzoic...
Court, R. W., Sephton, M. A., Parnell, J., Gilmour, I.
Exposure to ionizing radiation causes the mean combustion temperature of naturally occurring, solid, terrestrial organic matter, derived from the radiation-induced polymerization of methane, to...
Court, R. W., Sephton, M. A., Parnell, J., Gilmour, I.
Exposure to ionizing radiation causes the mean combustion temperature of naturally occurring, solid, terrestrial organic matter, derived from the radiation-induced polymerization of methane, to...
Pyrolysis-GC×GC-TOFMS to characterize carbonaceous chondrites (2005)
Watson, J. S., Pearson, V. K., Gilmour, I., Pillinger, C. T., Turner, D., Perkins, R., ...
Using pyrolysis-GCxGC-TOFMS to analyze organic carbon in carbonaceous chondrites gives a massive increase in both sensitivity and structural information from samples when compared to traditional...
The preservation state of organic matter in meteorites from Antarctica (2004)
Sephton, M.A., Bland, P.A., Pillinger, C.T., Gilmour, I.
The recovery of large numbers of meteorites from Antarctica has dramatically increased the amount of extraterrestrial material available for laboratory studies of solar system origin and evolution....
Sephton, M.A., Love, G.D., Watson, J.S., Verchovsky, A.B., Wright, I.P., Snape, C.E., ...
The major organic component of carbonaceous chondrites is a solvent-insoluble, high molecular weight macromolecular material that constitutes at least 70% of the total organic content in these...
Geochemistry of carbonaceous impactites from the Gardnos impact structure, Norway (2003)
Gilmour, I., French, B.M., Franchi, I.A., Abbott, J. I., Hough, R. M., Newton, J., ...
The Gardnos impact structure in southern Norway is one of only two known impact structures (among ~175) whose impactites contain significant amounts (typically 0.2-1.0 wt.%) of carbon, or 5 to 10...
Investigating the variations in carbon and nitrogen isotopes in carbonaceous chondrites (2003)
Sephton, M.A., Verchovsky, A.B., Bland, P.A., Gilmour, I., Grady, M.M., Wright, I.P.
The carbonaceous chondrites contain significant amounts of carbon- and nitrogen-bearing components, the most abundant of which is organic matter. Stepped combustion data of whole rock and HF/HCl...
Hydropyrolysis of high molecular weight organic matter in Murchison (2003)
Sephton, M. A., Love, G. D., Watson, J. S., Verchovsky, A. B., Wright, I. P., Snape, C. E., ...
Hydropyrolysis of the Murchison macromolecular material releases polyaromatic compounds including phenanthrene, carbazole, fluoranthene, pyrene, chrysene, perylene, benzoperylene and coronene units...
Geochemistry of carbonaceous impactites from the Gardnos impact structure, Norway (2003)
Gilmour, I., French, B.M., Franchi, I.A., Abbott, J.I., Hough, R.M., Newton, J., ...
The Gardnos impact structure in southern Norway is one of only two known impact structures (among similar to175) whose impactites contain significant amounts (typically 0.2-1.0 wt.%) of carbon, or 5...
High molecular weight organic matter in martian meteorites (2002)
Sephton, M.A., Wright, I.P., Gilmour, I., De Leeuw, J.W., Grady, M.M., Pillinger, C.T.
We have performed an investigation to detect high molecular weight organic matter in martian meteorites. Solvent-extracted samples of two Antarctic finds (ALH 84001, sub-sample 106 and EET A79001,...
Gilmour, I., Hill, H. G. M., Pearson, V.K., Sephton, M.A, Nuth, J. A.
The high molecular weight organic products of Fischer-Tropsch/Haber-Bosch syntheses on the surfaces of Fe-silicate catalysts have been studied by GCMS.
Organic-inorganic spatial relationships in carbonaceous chondrites (2002)
Pearson, V. J., Kearsley, A. T., Sephton, M. A., Gilmour, I.
The use of a novel technique to determine the spatial relationships of organic and aqueously produced inorganic phases in carbonaceous chondrites, in order to support proposals of a genetic link...
Organic indicators of alteration in the CR chondrites (2002)
Pearson, V. K., Sephton, M. A., Gilmour, I.
A study of the organic components in the CR chondrite macromolecule in order to assess the role of pre-terrestrial alteration on the organic inventory.
Gilmour, I., Franchi, I. A., Koeberl, C., French, B. M.
Raman spectroscopy suggests that the C was emplaced in at least two separate episodes into the impactites of the Gardnos impact structure.
Hydropyrolysis of the organic macromolecular material in the Murchison meteorite (2002)
Watson, J. S., Sephton, M. A., Love, G. D., Verchovsky, A. B., Snape, C. E., Gilmour, I.
Compound-specific isotope analysis of the organic constituents in carbonaceous chondrites (2001)
The carbonaceous chondrite meteorites contain evidence of the formation of the solar system, part of which is present within organic matter. In recent years, compound-specific isotope analysis (CSIA)...
Sephton, M.A., Pillinger, C.T., Gilmour, I.
In the time period since 1961, n-alkanes (straight-chain hydrocarbons) have been detected in varying amounts in many meteorites. Proposed origins for these compounds have included extraterrestrial...
Supercritical fluid extraction of the non-polar organic compounds in meteorites (2001)
Sephton, M.A., Pillinger, C.T., Gilmour, I.
The carbonaceous chondrite meteorites contain a variety of extraterrestrial organic molecules. These organic components provide a valuable insight into the formation and evolution of the solar...
The association between organic matter and clay minerals in carbonaceous chondrites (2001)
Pearson, V. K., Sephton, M. A., Bland, P. A., Franchi, I. A., Gilmour, I.
There is an established relationship between organic matter content and aqueous alteration processes [1,2]. However, the relationship between meteoritic organic matter and individual aqueously...
Analysis of Tagish Lake macromolecular organic material (2001)
Gilmour, I., Pearson, V. K., Sephton, M. A.
Macromolecular material is, by far, the major organic component of meteorites. Flash pyrolysis GCMS has been used to investigate this organic component in Tagish Lake. It is more condensed, less...
The Tagish Lake chondrite and the interstellar parent body hypothesis (2001)
Gilmour, I., Sephton, Mark, Pearson, V. K.
Investigation of the solvent extractable organic compounds in Tagish Lake. The results are used to test the interstellar parent body hypthesis for the origin of extraterrestrial organic matter.
Dual isotopic composition of methane in Murchison meteorite (2001)
Butterworth, A. L., Sephton, M. A., Gilmour, I.
Dual isotopic composition (H and C) of methane extracted from a small sample of Murchison meteorite reveals a deuterium enrichment for this molecule, indicating the presence of interstellar hydrogen.
Pearson, V. K., Sephton, M. A., Gilmour, I., Franchi, I. A.
A study into the hydrogen isotopic characteristics of whole rock samples of carbonaceous chondrites and their comparison with a whole rock sample of the Tagish Lake meteorite.
The oldest impact deposits on Earth - First confirmation of an extraterrestrial component. (2000)
Gilmour, I., Koeberl, Ch., Shukolyukov, A., Kyte, F. R., Lugmair, G. W., Lowe, D. R., ...
Physical processes are often modelled using nonlinear dynamical systems. If such models are relevant then they should be capable of demonstrating behaviour observed in the physical process. In this...
Physical processes are often modelled using nonlinear dynamical systems. If such models are relevant then they should be capable of demonstrating behaviour observed in the physical process. In this...
Coupled fluctuations of blood pressure and heart rate time series (1995)
The human cardiovascular system governs the heart rate and blood pressure. A neural sensor called the baroreceptor is controlled by the the blood pressure; the sensitivity of its reflex is important...
Coupled fluctuations of blood pressure and heart rate time series (1995)
The human cardiovascular system governs the heart rate and blood pressure. A neural sensor called the baroreceptor is controlled by the the blood pressure; the sensitivity of its reflex is important...
Geochemistry of carbonaceous impactites from the Gardnos impact structure, Norway
Gilmour, I., French, B.M., Franchi, I.A., Abbott, J.I., Hough, R.M., Newton, J., ...
The Gardnos impact structure in southern Norway is one of only two known impact structures (among similar to175) whose impactites contain significant amounts (typically 0.2-1.0 wt.%) of carbon, or 5...
Zhou, X, George, S E, Frank, D W, Utley, M, Gilmour, I, Krogfelt, K A, ...
Pseudomonas aeruginosa AC869, a 3,5-dichlorobenzoate degrader, is a mouse pathogen and has a reported 50% lethal dose (LD50) of 1.05 x 10(7) CFU when given intranasally to C3H/HeJ mice (S.E. George,...
Zhou, X, George, S E, Frank, D W, Utley, M, Gilmour, I, Krogfelt, K A, ...
Pseudomonas aeruginosa AC869, a 3,5-dichlorobenzoate degrader, is a mouse pathogen and has a reported 50% lethal dose (LD50) of 1.05 x 10(7) CFU when given intranasally to C3H/HeJ mice (S.E. George,...
Geochemistry of carbonaceous impactites from the Gardnos impact structure, Norway
Gilmour, I., French, B.M., Franchi, I.A., Abbott, J.I., Hough, R.M., Newton, J., ...
The Gardnos impact structure in southern Norway is one of only two known impact structures (among similar to175) whose impactites contain significant amounts (typically 0.2-1.0 wt.%) of carbon, or 5...