This document lists RJ Sweeney's refereed publications and abstracts. It includes over 30 journal publications dating from 1990-2006 related to experimental petrology and geochemistry. The publications examine topics like carbonation/decarbonation of eclogites, potassium amphibole stability, mantle origins of basalts, trace element partitioning between minerals and melts, and the role of hydrogen in geological processes. It also lists numerous conference abstracts on similar experimental petrology research.

1. RJ Sweeney
Refereed Publications
Knoche, R., Sweeney, R.J. and Luth, R.W. (1999). Carbonation and decarbonation of
eclogites: the role of garnet. Contrib. Min. Petrol., v135, 332-339.
Konzett, J., Sweeney, R.J., Thompson, A.B. and Ulmer, P. (1997). Potassium
amphibole stability in the Upper Mantle: an experimental study in a
Peralkaline KNCMASH system to 8.5 GPa. J. Petrol., 38, 537-568.
Konzett, J., Armstrong, R.A., Sweeney, R.J. and Compston, W. (1998). The timing of
MARID metasomatism in the Kaapvaal mantle: an ion probe study of
zircons from MARID xenoliths. Earth Planet. Sci. Lett., 160, 133-145.
Rawlings, D.J., Watkeys, M.K. and Sweeney, R.J. (1999). Peperitic upper margin of
an invasive flow, Karoo flood basalt province, northern Lebombo. S.
Afr. J. Geol., 102(4), 377-383.
Sweeney, R.J. and Watkeys, M.K. (1990). A possible link between Mesozoic
lithospheric architecture and Gondwana flood basalts. J. African Earth
Sciences, v 10, 707–716.
Sweeney, R.J., Falloon, T.J., Green, D.H. and Tatsumi, Y. (1991). The mantle origins
of Karoo Picrites. Earth Planet. Sci. Lett., 107, 256-271.
Sweeney, R.J., Green, D.H. and Sie, S.H. (1992). Trace and minor element
partitioning between garnet and amphibole and carbonatite melt. Earth
Planet, Sci. Lett., 113, 1-14.
Sweeney, R.J., Thompson, A.B. and Ulmer, P. (1993). Phase relations of a natural
MARID composition and implications for MARID genesis,
lithospheric melting and mantle metasomatism. Contrib. Mineral.
Petrol. 115. 225-241.
Sweeney, R.J., Duncan, A.R. and Erlank, A.J. (1994). Geochemistry and petrogenesis
of central Lebombo Karoo basalts. J. Petrol., 35(1), 95-125.
Sweeney, R.J. and Jablonski, W. (1994). A technique for the determination of
selected elements present in trace proportions in silicates and
carbonates by electron microprobe. X-ray Spectrometry, 23(2), 91-95.
Sweeney, R.J. (1994). Carbonatite melt compositions in the Earth’s mantle. Earth
Planet, Sci. Lett., 128, 259-270.
Sweeney, R.J., Falloon, T.J., Green, D.H. (1995). Experimental constraints on the
possible mantle origins of natrocarbonatite, 191-207. K. Bell, J. Keller
(eds.) IAVCEI Proceedings in Volcanology 4, Carbonatite Volcanism:
Oldoinyo Lengai and the Petrogenesis of Natrocarbonatites. Springer
Verlag, Berlin pp210.

2. Sweeney, R.J., Prozesky, V. and Przybylowicz, W. (1995). Trace and minor element
partitioning between silicate minerals and carbonatite- and silicate-
melts at 18kb to 46kb pressure. Geochim. Cos. Acta, 59, 3671-3683.
Sweeney, R.J. (1996). The role of hydrogen in geological processes in the Earth’s
interior. Solid State Ionics, 97, 393-397.
Sweeney, R.J., Prozesky, V. and Springhorn, K. (1997). Use of the elastic recoil
detection analysis (ERDA) microbeam technique for the quantitative
determination of hydrogen in materials and hydrogen partitioning
between olivine and melt at high pressures. Geochim. Cos. Acta., 61,
101-113.
Sweeney, R, J., Prozesky, V.M., Churms, C.L., Padaychee, J. and Springhorn, K.
(1998). Application of a ∆E-E telescope for sensitive ERDA
measurement of hydrogen. Nucl. Ins. Methods in Physics Res. B., 136-
138, 685-688.
Sweeney, R.J., Prozesky, V. and Springhorn, K. (1999). The quantitative
determination of H in geological materials (silicates) by elastic recoil
detection analysis (ERDA). Nucl. Ins. Methods in Physics Res. B.,
130, 623-627.
Sweeney, R.J. and Winter, F. (1999). Kimberlite as high-pressure melts: the
determination of segregation depth from major element chemistry.
Proc. 5th
Int. Kimberlite Conf., eds. Gurney et al., v2, 846-851.
Sweeney, R, J., Prozesky, V.M., Viljoen, K.S. and Connell, S. (1999). The sensitive
determination of H in diamond by infrared (FTIR) spectroscopy and
micro-elastic-recoil (ERDA) techniques. Nucl. Ins. Methods in Physics
Res. B., 158, 582-587.
Ulmer, P. and Sweeney, R.J. (2002). Generation and differentiation of Group II
kimberlites: constraints from a high pressure experimental study to 10
GPa. Geochim. Cos. Acta., 66, 2139-2154.

3. Abstracts
Erlank, A.J., Duncan, A.R., Marsh, J.S., Sweeney, R.J., Hawkesworth, C.J., Milner,
S.C., McG Miller, R. and Rogers, N.W. (1988). A major mantle
heterogeneity in southern Gondwanaland. Abs. E.A.G. Int. Congress
of Geochemistry and Cosmochemistry, Paris. Chemical Geology, 70
(1/2), 202.
Erlank, A.J., Duncan, A.R., Marsh, Sweeney, R.J., Hawkesworth, C.J., Milner, S.C.,
McG Miller, R. and Rogers, N.W. (1988). A laterally extensive
geochemical heterogeneity in the sub-continental Gondwana
lithosphere. Ext. Abs. Evol. Continental Lithosphere, Brazil 1-9.
Erlank, A.J., Duncan, A.R., Sweeney, R.J., Milner, S.C., Marsh, J.S., Hawkesworth,
C.J., Rogers, N.M., and McG Miller, R. (1989). Is there a laterally
extensive geochemical boundary in Mesozoic basalts of southern
Gondwanaland. Abs. 28th
Int. Geol. Congress, Washington, v1, 458.
Konzett, J., Sweeney, R.J., Compston, W. (1995). The correlation of kimberlite
activity with mantle metasomatism. Ext. Abs. Kimberlite Conf.,
Novosibirsk.
Marsh, J.S., Sweeney, R.J. and Armstrong, R.A. (1992). New Pb, Sr and Nd isotope
data from the Karoo Province. Ext. Abs. Geocongress ’92, Geol. Soc.
S. Afr.
Preston, R. and Sweeney, R. J. (2003). A comparison of clinopyroxene
thermobarometric techniques: applied to Jwaneng, Orapa and Markt
kimberlites. 8th
Int. Kim. Conf. Ext. Abs. pp5.
Prozesky, V., Przybylowicz, W. and Sweeney, R.J., (1995). A comparison of PIXE
techniques with other microbeam methods. Abs. EUG Strasbourg,
Terra Nova, 7, 343.
Semytikivska, N., Ulmer, P and Sweeney, R. (2006). Picro-ilmenite: an experimental
study in simple and complex systems to investigate P-T-fO2-
composition relations at high pressure. Abstract, EMPG XI, Bristol.
Sweeney, R.J., Duncan, A.R. and Erlank, A.J. (1988). Three distinct magma types in
the Karoo of the central Lebombo and their petrogenetic significance.
Ext. Abs. Geocongress ’88, Geol. Soc. S. Afr., 621-624.
Sweeney, R.J. and Green, D.H. (1990). The role of crustal contamination in
Tasmanian dolerites. Abs. 7th
Int. Conf. Geochronology,
Cosmochronology and Isotope Geology, Canberra.

4. Sweeney, R.J., Thompson, A.B. and Ulmer, P. (1993). Phase relations of a natural
MARID composition and implications for genesis and lithospheric
melting. Abs. EUG Strasbourg, Terra Nova, 5, 538.
Sweeney, R.J., Prozesky, V. and Przybylowicz, W. (1994). Trace element
partitioning between silicate minerals and carbonatite and silicate melts
at 18kb to 46kb pressure. Abs. Goldschmidt Conf., Edinburgh, Min.
Mag., 58A, 885-886.
Sweeney, R.J. and Thompson, A.B. (1995). Peridotite and basalt solidii to 8GPa
under conditions of excess water. Abs. EUG Strasbourg, Terra Nova,
7, 145.
Sweeney, R.J., Thompson, A. and Prozesky, V. (1995). Peridotite-water relations:
solidii and solubilities at 3-8GPa. Abs. AGU Fall meeting.
Sweeney, R.J. (1996). The role of hydrogen in geological processes in the Earth’s
interior. Abs. Int. Conf. Solid State Protonic Conductors VIII,
Storefjell, Norway. (Invited presentation).
Ulmer, P. and Sweeney, R.J. (1993). Group II kimberlites – a potential source of
MARID’s carbonatites and mantle metasomatism. Abs. EUG
Strasbourg, Terra Nova, 5, 539.
Ulmer, P. and Sweeney, R.J. (1994). The origin of Group II kimberlites: an
experimental study. Abs. Experimental Petrology meeting, London
April 1994
Watkeys, M.K. and Sweeney, R.J. (1988). Tuli-Lebombo volcanism and
Gondwanaland rifting. Ext. Abs. Geocongress ’88, Geol. Soc. S. Afr.,
725-728.
Watkeys, M.K. and Sweeney, R.J.(1992). Crustal Provinces, mantle melts and Karoo
volcanism. Abs. AGU Montreal, 329.
Nov, 2006
Publications.RJS.doc