Search Results - "Condomines, Michel"

Radium Isotopes as a Tracer of Water Sources and Mixing in the Vidourle Stream (South of France) by Molina-Porras, Arnold, Condomines, Michel, Legeay, Pierre-Louis, Bailly-Comte, Vincent, Seidel, Jean Luc

“…This study reports analyses of Ra isotopes in a Mediterranean stream, the Vidourle river, whose upper course drains the granitic and metamorphic basement of…”
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An improved method for Ra isotope (226Ra, 228Ra, 224Ra) measurements by gamma spectrometry in natural waters: application to CO2-rich thermal waters from the French Massif Central by Rihs, Sophie, Condomines, Michel

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Evolution of the Mount Etna magma: Constraints on the present feeding system and eruptive mechanism by Tanguy, Jean-Claude, Condomines, Michel, Kieffer, Guy

“…Volcanism in the Mount Etna area began some 500,000 years ago with sparse effusions of subaphyric olivine tholeiites showing primary characteristics (0.3–0.4%…”
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Magma dynamics at Mt Etna: Constraints from U-Th-Ra-Pb radioactive disequilibria and Sr isotopes in historical lavas by Condomines, Michel, Tanguy, Jean-Claude, Michaud, Vale´rie

“…238U- 230Th- 226Ra- 210Pb disequilibria and 87Sr/ 86Sr ratios have been measured in a suite of prehistoric and historical lava flows from Mt. Etna. Whereas Th…”
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Unusual open-system behaviour revealed by LA-MC-ICP-MS U–Th dating of coral and coralline algae bio-carbonates by Condomines, Michel, Bruguier, Olivier, Hajji, Inès, Zaara-Ben Mosbah, Chedia

“…This paper presents new U-Th ages obtained by LA-MC-CP-MS (laser ablation -multicollector -inductively coupled plasma -mass spectrometry) on coral samples from…”
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A detailed Th, Sr and O isotope study of Hekla. differentiation processes in an Icelandic Volcano by SIGMARSSON, Olgeir, CONDOMINES, Michel, FOURCADE, Serge

“…238U(minus 230)Th disequilibria and Sr and O isotope ratios have been measured in a suite of samples from most of the known prehistoric and historic eruptions…”
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Mount Etna eruptions of the last 2,750 years : revised chronology and location through archeomagnetic and 226Ra-230Th dating by TANGUY, Jean-Claude, CONDOMINES, Michel, LE GOFF, Maxime, CHILLEMI, Vito, LA DELFA, Santo, PATANE, Giuseppe

“…A careful re-examination of the well-known written documents pertaining to the 2,750-year-long historical period of Mount Etna was carried out and their…”
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Comparison of 14C and 210Pb - 137Cs - 241Am dating methods of a recent bat guano deposit (Lot, SW France) by Condomines, Michel, Bentaleb, Ilham, Filaiti, Eleni, Robert, Aloïs, Milhas, Claude

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Comparison of 14C and 210Pb - 137Cs - 241Am dating methods of a recent bat guano deposit (Lot, SW France) by Condomines, Michel, Bentaleb, Ilham, Filaiti, Eleni, Robert, Aloïs, Milhas, Claude

“…Bat guano deposits are increasingly used as records of past environmental changes, an approach that requires a precise chronology of the guano layers. This…”
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Excess Po-210 in 2010 Eyjatjallajokull tephra (Iceland): Evidence for pre-eruptive gas accumulation by Sigmarsson, Olgeir, Condomines, Michel, Gauthier, Pierre-Jean

“…Excess gas phase in magmas erupting explosively is well known worldwide. However, the origin of this gas phase, in excess of what can be dissolved in the…”
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Radium isotopes, radon and Pb-210 in karstic waters: Example of the Lez system (South of France) by Molina-Porras, Arnold, Condomines, Michel, Seidel, Jean Luc

“…We present in this study the first data on Ra isotopes, 222Rn, and 210Pb in waters from the Lez karst system, one of the main ground-water resources in the…”
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Extreme radium deficit in the 1957 AD Mugogo lava (Virunga volcanic field, Africa): its bearing on olivine-melilitite genesis by Condomines, Michel, Carpentier, Marion, Ongendangenda, Tienge

“…We report here U-series and trace element data for an olivine-melilitite lava flow, erupted in 1957 in the Virunga volcanic field and known as the Mugogo…”
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Flank eruptions of Mt Etna during the Greek-Roman and Early Medieval periods: New data from Ra-226-Th-230 dating and archaeomagnetism by Branca, Stefano, Condomines, Michel, Tanguy, Jean-Claude

“…In this paper, we present new data from 226Ra–230Th dating and archaeomagnetism with the aim of improving the knowledge of the flank eruptions that occurred at…”
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Short-Lived Radioactivity and Magma Genesis by Gill, James, Condomines, Michel

“…Short-lived decay products of uranium and thorium have half-lives and chemistries sensitive to the processes and time scales of magma genesis, including…”
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Excess 210Po in 2010 Eyjafjallajökull tephra (Iceland): Evidence for pre-eruptive gas accumulation by Sigmarsson, Olgeir, Condomines, Michel, Gauthier, Pierre-Jean

“…•Excess – and deficit 210Po reflect closed – and open system degassing, respectively.•Excess 210Po in Eyjafjallajökull tephra suggest free vapour phase before…”
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Excess 210 Po in 2010 Eyjafjallajökull tephra (Iceland): Evidence for pre-eruptive gas accumulation by Sigmarsson, Olgeir, Condomines, Michel, Gauthier, Pierre-Jean

“…Excess gas phase in magmas erupting explosively is well known worldwide. However, the origin of this gas phase, in excess of what can be dissolved in the…”
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Reconstruction of extreme floods and tsunamis from coastal sedimentary archives in Los Choros, Coquimbo region, 28°S, Chile by Araya, Karen, Dezileau, Laurent, Muñoz, Praxedes, Maldonado, Antonio, Condomines, Michel, Khalfaoui, Otmane, Oyanadel-Urbina, Pablo, Araya, Benjamin A.

“…This study used sedimentary archives obtained from a high-standing terrace along the coastal zone of the Coquimbo region to reconstruct past extreme events…”
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Radium isotopes, radon and 210Pb in karstic waters: Example of the Lez system (South of France) by Molina-Porras, Arnold, Condomines, Michel, Seidel, Jean Luc

“…We present in this study the first data on Ra isotopes, 222Rn, and 210Pb in waters from the Lez karst system, one of the main ground-water resources in the…”
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Unusual open-system behaviour revealed by LA-MC-ICP-MS U–Th dating of coral and coralline algae bio-carbonates by Condomines, Michel, Bruguier, Olivier, Hajji, Inès, Zaara-Ben Mosbah, Chedia

“…This paper presents new U–Th ages obtained by LA-MC-CP-MS (laser ablation - multi-collector - inductively coupled plasma - mass spectrometry) on coral samples…”
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Radium isotopes, radon and 210 Pb in karstic waters: example of the Lez system (South of France) by Porras, Arnold Molina, Condomines, Michel, Luc Seidel, Jean

“…We present in this study the first data on Ra isotopes, 222 Rn, and 210 Pb in waters from the Lez karst system, one of the main ground-water resources in the…”
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