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Place and date of birth:
Budapest, 1962
Qualifications:
- diploma in geology (ELTE TTK, 1986)
- university doctor (ELTE TTK, 1992)
- "candidate of geosciences" (Ph.D., MTA TMB 1994)
- doctor of the Hungarian Academy of Sciences (D.Sc.,
MTA 2001)
Employment:
Institute for Geochemical Research, Hungarian
Academy of Sciences.
Position: director
Scientific activities:
- Geochemical studies on Hungarian and Alpine
high-pressure metamorphic rocks (Penninic rocks, leucophyllites,
whiteschists).
- C,O,H and N isotope geochemistry of fluids of
mantle-derived igneous rocks with special attention to fluid movements
related to carbonatitic magmatism (magmatic rocks of Hungary,
carbonatites from India, Canary Islands, the Kola peninsula and Canada).
- Stable isotope geochemistry of major extinction events
(Permian-Triassic, Triassic-Jurassic).
- Paleoclimate research on terrestrial deposits,
coordination of the Geochemistry and Paleoclimate Research Group in the
institute.
Study trips:
- Austria, 1987, 1 month, Soros Foundation.
- Utrecht, The Netherlands, 1988-1989, 5 months,
Hungarian Scholarship Council.
- Trieste, Italy, 1993, 2 months, CNR.
- Lausanne, Switzerland, 1995, 4 months, Fonds National
Suisse de la Recherche Scientifique.
- Tübingen, Germany, 1996, 2 months, DAAD.
- University of Rome, Italy. Invited as visiting
professor for 1 month in 2001.
- University of Lausanne, 3 months, Fondation Herbette.
Main professional activities:
- 1994-96. International Isotope Society, chairman
- 1996-. Member of the Committee for
Mineralogy-Petrography-Geochemistry of the Hungaran Academy of Sciences.
2002-2008: Secretary. 2008-: chairman.
- 2000-2008: International Association for
Geochemistry and Cosmochemistry Councillor/Executive Member; 2002-2008:
Secretary.
- 2006-: secretary of the Hungarian National
Committee of the International Union of Geological Sciences.
- 2004-2008: member of the Earth Sciences 1 jury of
the Hungarian national Research Fund, chairman from 2005 to 2008.
- 2005-: editorial board member of Acta Geologica
Hungarica.
- 2008-: member of the Habilitation Committee of the
Eötvös Loránd University
- 2009-: Earth System Science Data, editorial board
member.
Conference organization:
- 1996. Isotope Workshop III, Budapest
- 1997. 1st Isotope Geochemistry Meeting,
Budapest (Hungarian)
- 1997. The role of geo- and environmental sciences in
the preservation of our historical heritage, meeting, Budapest
(Hungarian)
- 2000, 2002: Hungarian Meeting of Isotope Geochemistry.
- 2006: EGU, Vienna, session convener
- 2007. PAGES (Past Global Changes) 2007 conference for
the Hungarian participants.
- 2008: International Geological Congress, session
convener.
Awards and scholarships:
- Szádeczky Kardoss Elemér Foundation, 1st
and 2nd Awards.
- 1993. Youth Award, Hungarian Academy of Sciences.
- 2003. Publication Award of the Hungarian
Meteorological Survey.
- 2007. Academy Award.
- 2009. Certificate of Recognition. International
Association of GeoChemistry.
Teaching activities:
Eötvös Loránd University, Budapest: special course
("Principles and applications in stable isotope geochemistry"),
consulent of diploma and Ph.D. works (3).
Selected Publications of the last 5 years
Full list of publications
Book chapter
1) Demény,
A., Sitnikova, M.A., Karchevsky, P.I. (2004): Stable C and O isotope
compositions of carbonatite complexes of the Kola alkaline province:
phoscorite-carbonatite relationships and source compositions. In: F.
Wall and A.N. Zaitsev (Editors): Phoscorites and Carbonatites from
Mantle to Mine. The Mineralogical Society Series, No. 10, pp. 407-431.
Journal articles
1) Sindern,
S., Zaitsev, A.N., Demény, A., Bell, K., Chakmouradian, A.R., Kramm, U.,
Moutte, J., Rukhlov, A.S. (2004): Mineralogy and geochemistry of
silicate dyke rocks associated with carbonatites from the Khibina
complex (Kola, Russia) – isotope constraints on genesis and small-scale
mantle sources. Mineralogy and Petrology, 80, 215-239.
2) Demény,
A., Vennemann, T.W., Ahijado, A., Casillas, R. (2004): Oxygen Isotope
Thermometry in Carbonatites, Fuerteventura, Canary Islands, Spain.
Mineralogy and Petrology, 80, 155-172.
3) Demény,
A., Vennemann, T.W., Hegner, E., Ahijado, A., Casillas, R., Nagy, G.,
Homonnay, Z., Gutierrez, M., Szabó, Cs. (2004): H, O, Sr, Nd and Pb
isotopic evidence for recycled oceanic crust in the Transitional
Volcanic Group of Fuerteventura, Canary Islands, Spain. Chem. Geol.,
205, 37-54.
4) Demény,
A., Vennemann, T.W., Hegner, E., Nagy, G., Milton, J.A , Embey-Isztin,
A., Homonnay, Z. (2004): Trace element and C-O-Sr-Nd isotope evidence
for subduction-related carbonate-silicate melts in mantle xenoliths
(Pannonian Basin, Hungary). Lithos, 75, 89-113.
5) Pintér,
F., Szakmány, Gy., Demény, A., Tóth, M. (2004): The provenance of „red
marble” monuments from the 12th-18th centuries in
Hungary. Eur. J. Mineral., 16, 619-629.
6) Demény,
A., Vennemann, T.W., Harangi, Sz., Homonnay, Z., Fórizs, I. (2006): H2O-dD-FeIII
relations of
dehydrogenation and dehydration processes in magmatic amphiboles. Rapid
Communications in Mass Spectrometry, 20, 919-925.
7) Haas,
J., Demény, A., Hips, K., Vennemann, T.W. (2006): Carbon isotope
excursions and microfacies changes in marine Permian–Triassic boundary
sections in Hungary. Palaeogeography, Palaeoclimatology, Palaeoecology,
237, 160–181.
8) Bajnóczi,
B., Horváth, Z., Demény, A., Mindszenty, A. (2006): Stable isotope
geochemistry of calcrete nodules and septarian concretions in a
Quaternary 'red clay' paleovertisol from Hungary. Isotopes in
Environmental and Health Studies, 42, 335-350.
9) Haas,
J., Demény, A., Hips, K., Zajzon, N., Weiszburg, T.G., Sudar, M., Pálfy,
J. (2007): Biotic and environmental changes in the Permian–Triassic
boundary interval recorded on a western Tethyan ramp in the Bükk
Mountains, Hungary. Global and Planetary Change, 55, 136-154.
10) Pálfy,
J., Demény, A., Haas, J., Carter, E.S., Görög, Á., Halász, D.,
Oravecz-Scheffer, A., Hetényi, M., Márton, E., Orchard, M.J., Ozsvárt,
P., Vető, I., Zajzon, N. (2007): Triassic–Jurassic boundary events
inferred from integrated stratigraphy of the Csővár section, Hungary.
Palaeogeography, Palaeoclimatology, Palaeoecology, 244, 11-33.
11) Demeny,
A; Casillas, R; Ahijado, A (2007): Comment on the paper of de Ignacio,
C., Munoz, M., Sagredo, J., Fernandez-Santin, S. and Johansson, A.,
2006. Isotope geochemistry and FOZO mantle component of the
alkaline-carbonatitic association of Fuerteventura, Canary Islands,
Spain. Chem. Geol. 232, 99-113. Chem. Geol., 242, 288-291.
12)
Demény, A.,
Casillas, R., Vennemann, T.W., Hegner, E., Nagy, G., Ahijado, A., De la
Nuez, J., Sipos, P., Pilet, S., Milton, A.J. (2008): Plume-related
stable isotope compositions and fluid/rock interaction processes in the
seamount series of La Palma, Canary Islands, Spain. Journal of the
Geological Society, London, 293, 155-175.
13) Demény,
A., Siklósy, Z (2008).: Combination of off-line preparation and
continuous flow mass spectrometry: D/H analyses of inclusion waters.
Rapid Communications in Mass Spectrometry, 22, 1329-1334.
14) Chakhmouradian,
AR; Mumin, AH; Demeny, A, Elliott, B (2008): Postorogenic carbonatites
at Eden Lake, Trans-Hudson Orogen (northern manitoba, canada):
Geological setting, mineralogy and geochemistry. Lithos, 103, 503-526.
15) Kele
S, Demeny A, Siklosy Z, Nemeth T, Toth M, Kovacs MB (2008): Chemical and
stable isotope composition of recent hot-water travertines and
associated thermal waters, from Egerszalok, Hungary: Depositional facies
and non-equilibrium fractionation. Sedimentary Geology, 211, 53-72.
16) Siklosy,
Z., Demeny, A., Vennemann, T.W., Pilet, S., Kramers, J., Leel-Ossy, Sz.,
Bondár, M., Shen, C-C., Hegner, E. (2009): Bronze Age volcanic event
recorded in stalagmites by combined isotope and trace element studies.
Rapid Communications in Mass Spectrometry, 23, 801-808.
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