Laboratorio di Geocronologia

Responsabile: Dott.ssa Valentina Barberini

Personale: Prof. Andrea Rizzo, Prof. Igor Villa

Ubicazione: edificio U4, piano 2, stanza 2038

Apparecchiatura

Spettrometro di massa Noblesse (Nu Instruments Ltd.) per la misura degli isotopi dei gas nobili equipaggiato con linea di estrazione e purificazione del campione personalizzata (fornace a resistenza).

Attività

Datazione di campioni geologici (per ricerca e interna e commissionata) con metodo 40Ar-39Ar, mediante metodo step-heating.

Consulta il listino prezzi per le analisi di laboratorio (W - Geocronologia).

I dati ottenuti nel corso degli anni dalle analisi condotte in questo laboratorio sono inclusi nelle seguenti pubblicazioni (31 articoli su rivista e 11 abstracts, aggiornato maggio 2023). Sono indicati gli abstract solo nel caso in cui i dati non siano ancora inclusi in articoli su rivista.

2023

  • Villa, I. M., Glodny, J., Peillod, A., Skelton, A., & Ring, U. (2023). Petrochronology of polygenetic white micas (Naxos, Greece). Journal of Metamorphic Geology, 41( 3), 401– 423. https://doi.org/10.1111/jmg.12700
  • Villa I.M., Bosio G.; “Excess Ar” by laboratory alteration of biotite. Geology 2022;; 51 (1): 121–125. doi: https://doi.org/10.1130/G50503.1
  • Montemagni, C., Zanchetta, S., Rocca, M., Villa, I. M., Morelli, C., Mair, V., and Zanchi, A.: Kinematics and time-resolved evolution of the main thrust-sense shear zone in the Eo-alpine orogenic wedge (the Vinschgau Shear Zone, Eastern Alps), EGUsphere [preprint], https://doi.org/10.5194/egusphere-2023-126, 2023.
  • Mateo, L., Tornos, F., Hanchar, J.M. et al. The Montecristo mining district, northern Chile: the relationship between vein-like magnetite-(apatite) and iron oxide-copper–gold deposits. Miner Deposita (2023). https://doi.org/10.1007/s00126-023-01172-0

2022

  • Mittempergher, S., Zanchetta, S., Caldiroli, F., Zanchi, A., Bistacchi, A., Hanchar, J., et al., 2022. The timescale of solid-state deformation in the Northern Adamello igneous intrusive suite. JOURNAL OF THE GEOLOGICAL SOCIETY, 179(4), 1-22 [10.1144/jgs2021-101].
  • Visonà D., Nimis P., Fioretti A.M., Massironi M. & Villa I.M., 2022. A hidden Oligocene pluton linked to the Periadriatic Fault System beneath the Permian Bressanone pluton, eastern Southern Alps, International Geology Review, 64:19, 2783-2802, DOI: 10.1080/00206814.2021.2003725

2021

  • Kung J., Villa I.M., 2021. The in vacuo release of Ar from minerals: 2. The role of structural modifications of K-feldspar during heating revealed by Raman microprobe analyses. Chemical Geology, 580, 120382, 1-7.  ​d​o​i​: ​1​0​.​1​0​1​6​/​j​.​c​h​e​m​g​e​o​.​2​0​2​1​.​1​2​0​3​8​2  
  • Naumenko-Dèzes M.O., Villa I.M., Rolland Y., Gallet S., Lanari P., 2021. Subgrain 40Ar/39Ar dating of museum-quality micas reveals intragrain heterogeneity. Chemical Geology, 573, 120215, 1-11. doi: 10.1016/j.chemgeo.2021.120215
  • Montemagni C., Villa I.M., 2021. Geochronology of Himalayan shear zones: unravelling the timing of thrusting from structurally complex fault rocks. Journal of the Geological Society,  1-13. doi: 10.1144/jgs2020-235    
  • Visonà D., Nimis P., Fioretti A.M., Massironi M., Villa I.M., 2021. A hidden Oligocene pluton linked to the Periadriatic Fault System beneath the Permian Bressanone pluton, Eastern Southern Alps. International Geology Review, 1-20.  doi: 10.1080/00206814.2021.2003725

2020

  • Gébelin A., Teyssier C., Mulch A., Law R.D., Villa I.M., Cosca M.A., 2020. Miocene rainfall in the South Tibetan Detachment as a proxy of tectonic regime and past topography. Abstract, 27e Réunion des Sciences de la Terre, Lyon
  • Bosio G., Gioncada A., Di Celma C., Villa I.M., Pichavant M., Urbina M., Bianucci G., 2020. Two-mica rhyolitic tephra in the East Pisco Basin (Peru): new age and dispersion constraints for the eruptions of the Eastern Cordillera of Central Andes. Bulletin of Volcanology 82, 42 doi:10.1007/s00445-020-1373-y
  • Montemagni C., Carosi R., Fusi N., Iaccarino S., Montomoli C., Villa I.M., Zanchetta S., 2020. Three-dimensional vorticity and time-constrained evolution of the Main Central Thrust zone, Garhwal Himalaya (NW India). Terra Nova, 32, 215-224. doi: 10.1111/ter.12450
  • Bulle F., Rubatto D., Ruggieri G., Luisier C., Villa I.M., Baumgartner L., 2020. Episodic hydrothermal alteration recorded by microscale oxygen isotope analysis of white mica in the Larderello-Travale Geothermal Field, Italy. Chemical Geology, 532, 119288 doi: 10.1016/j.chemgeo.2019.119288   
  • Bosio G., Malinverno E., Villa I.M., Di Celma C., Gariboldi K., Gioncada A., Barberini V., Urbina M., Bianucci G., 2020. Tephrochronology and chronostratigraphy of the Miocene Chilcatay and Pisco formations (East Pisco Basin, Peru). Newsletters on Stratigraphy, 53, 213-247 doi: 10.1127/nos/2019/0525

2019

  • Bosio G., Gioncada A., Malinverno E., Di Celma C., Villa I.M., Cataldi G., Gariboldi K., Collareta A., Urbina M., Bianucci G., 2019. Chemical and petrographic fingerprinting of volcanic ashes as a tool for high-resolution stratigraphy of the Upper Miocene Pisco Formation (Peru). Journal of the Geological Society, 176, 13-28. doi: 10.1144/jgs2018-071.
  • Montemagni C., Montomoli C., Iaccarino S., Carosi R., Jain A.K., Massonne H.-J., Villa I.M., 2019. Dating protracted fault activity: microstructures, microchemistry and geochronology of the Vaikrita thrust, Main Central Thrust zone, Garhwal Himalaya, NW India. In: Sharma R., Villa I.M., Kumar S. (eds) Crustal Architecture and Evolution of the Himalaya-Karakoram-Tibet Orogen. Geological Society London Special Publications, 481,   doi: 10.1144/SP481.3 .
  • Bosio G., Gioncada A., Di Celma C., Villa I.M., Urbina M., Bianucci G., 20xx. Two-mica rhyolitic tephra in the East Pisco Basin (Peru): new age and dispersion constraints for the eruptions of the Eastern Cordillera of Central Andes. Journal of Volcanology and Geothermal Research.
  • Villa I.M., Glodny J., Ring U., Skelton A., Peillod A., 2019. Sr and Ar diffusion systematics in polygenetic white micas from Naxos. EGU abstract 2019-5028.

2018

  • Bianucci G., Bosio G., Malinverno E., Muizon C. de, Villa I.M., Urbina M., Lambert O., 2018. A new large squalodelphinid (Cetacea, Odontoceti) from Peru sheds light on the Early Miocene platanistoid disparity and ecology. Royal Society Open Science, 5(4), 172302, 32pp. doi: 10.1098/rsos.172302.
  • Bianucci G., Collareta A., Bosio G., Landini W., Gariboldi K., Gioncada A., Lambert O., Malinverno E., Muizon C. de, Varas-Malca R., Villa I.M., Coletti G., Urbina M., Di Celma C., 2018. Taphonomy and palaeoecology of the lower Miocene marine vertebrate assemblage of Ullujaya (Chilcatay Formation, East Pisco Basin, southern Peru). Palaeogeography, Palaeoclimatology, Palaeoecology, 51, 256-279.   doi: 10.1016/j.palaeo.2018.08.013.
  • Di Celma C., Malinverno E., Collareta A., Bosio G., Gariboldi K., Lambert O., Landini W., Pierantoni P.P., Gioncada A., Villa I.M., Coletti G., Muizon C. de, Urbina M., Bianucci G., 2018. Facies analysis, stratigraphy and marine vertebrate assemblage of the early Miocene Chilcatay Formation at Ullujaya (Pisco basin, Peru). Journal of Maps 14, 257-268. doi: 10.1080/17445647.2018.1456490.
  • Montemagni C., Iaccarino S., Montomoli C., Carosi R., Jain A.K., Villa I.M., 2018. Age constraints on the deformation style of the South Tibetan Detachment System in Garhwal Himalaya. Italian Journal of Geosciences, 137, 175-187.  doi: 10.3301/IJG.2018.07.
  • Naumenko-Dèzes M., Nägler T.F., Villa I.M., Mezger K., 2018. 40K-40Ca – 87Rb-87Sr age comparison: constraints on the 40K decay constant. Geochimica et Cosmochimica Acta, 220, 235–247. doi: 10.1016/j.gca.2017.09.041.
  • Zanchetta S., Worthington J., Angiolini L., Leven E.Ya., Villa I.M., Zanchi A., 2018. The Bashgumbaz Complex (Tajikistan): tracing the Cimmerian orogeny in the Pamirs. Gondwana Research, 57, 170-190.   doi: 10.1016/j.gr.2018.01.009.
  • Kung J., Villa I.M., 2018. Raman microprobe constraints on the Ar degassing mechanisms in gem-quality sanidine. Goldschmidt abstract
  • Mittempergher S., Zanchetta S., Villa I.M., Caldiroli F., Bistacchi A., Zanchi A., 2018. Radiome­tric ages of solid state deformation structures in the Northern Adamello Avio granodiorite (Southern Alps, N Italy). Abstract, Soc Geol Ital, Catania.
  • Naumenko-Dèzes M.O., Rolland Y., Lanari P., Villa I.M., 2018. High resolution 40Ar/39Ar ages reveal intragrain fluid-assisted heterogeneities of magmatic micas. EGU abstract 9580.
  • Villa I.M., Bosio G., Barberini V., 2018. "Excess Ar" by artificial alteration of biotite. EGU abstract 14338.
  • Villa I.M., 2018. Himalayan geochronology, a road map for the next 15 years. Keynote, 33rd HKT International Workshop, abstracts, 136.

2017

  • Di Celma C., Malinverno E., Bosio G., Collareta A., Gariboldi K., Gioncada A., Molli G., Basso D., Varas-Malca R.M., Pierantoni P.P., Villa I.M., Lambert O., Landini W., Sarti G., Cantalamessa G., Urbina M., Bianucci G., 2017. Stratigraphic framework and paleontology of the Upper Miocene Pisco Formation along the western side of the lower Ica valley (Ica desert, Peru). Rivista Italiana di Paleontologia e Stratigrafia, 123, 255-274.  doi: 10.13130/2039-4942/8373.
  • Gariboldi K., Bosio G., Malinverno E., Gioncada A., Di Celma C., Villa I.M., Urbina M., Bianucci G., 2017. Biostratigraphy, geochronology and sedimentation rates of the late Miocene Pisco Formation at two important marine vertebrate fossil bearing sites of southern Peru. Newsletters on Stratigraphy, 50, 417–444. doi: 10.1127/nos/2017/0345.
  • Oglialoro E., Frezzotti M.L., Ferrando S., Tiraboschi C., Principe C., Groppelli G., Villa I.M., 2017. Lithospheric magma dynamics beneath El Hierro, Canary Islands: a fluid inclusion study. Bulletin of Volcanology 79(10), paper 70, 1-17. doi: 10.1007/s00445-017-1152-6.
  • Seo J.H., Yoo B.C., Villa I.M., Lee J.H., Lee T.H., Lee C.S., Moon K.J., 2017. Magmatic-hydrothermal processes in Sangdong W-Mo deposit, Korea: study of fluid inclusions and 39Ar-40Ar geochronology. Ore Geology Reviews, 91, 316-334. doi: 10.1016/j.oregeorev.2017.09.019.

2016

  • Naumenko-Dèzes M., Nägler T.F., Villa I.M., 2016. 40K-40Ca – 87Rb-87Sr age comparison: constraints on the 40K decay constant. 26th Goldschmidt Conference, Abstract
  • Villa I.M., Peverelli V., Oglialoro E., Frezzotti M.L., 2016. Halogens, barium and uranium in mantle fluid inclusions. 26th Goldschmidt Conference, Abstract 4173.
  • Villa I.M., 2016. Dating the polyphase evolution of the Western Alps. EGU abstract 17771.

2015

  • Heri A.R., Aitchison J.C., King J.A., Villa I.M., 2015. Geochronology and isotope geology of Eocene dykes intruding the Ladakh Batholith. Lithos, 212-215, 111-121. doi: 10.1016/j.lithos.2014.11.001.
  • Di Celma C., Malinverno E., Cantalamessa G., Gioncada A., Bosio G., Villa I.M., Gariboldi K., Rustichelli A., Pierantoni P.P., Landini W., Tinelli C., Collareta A., Bianucci G., 2015. Stratigraphic framework of the late Miocene Pisco Formation at Cerros Los Quesos (Ica Desert, Peru).  Journal of Maps, 12, doi: 10.1080/17445647.2015.1115783. ISSN: 1744-5647.
  • Barberini V., Villa I.M., 2015. Ion Counter Nonlinearities. 25th Goldschmidt Conference, Abstract 4058.

2014

  • Villa I.M., Bucher S., Bousquet R., Kleinhanns I.C., Schmid S.M., 2014. Dating polygenetic metamorphic assemblages along a transect through the Western Alps. Journal of Petrology 55, 803-830.  doi:10.1093/petrology/egu007.
  • Chafe A.N., Villa I.M., Hanchar J.M., Wirth R., 2014. A re-examination of petrogenesis and 40Ar/39Ar systematics in the the Chain of Ponds K-feldspar: "diffusion domain" archetype versus polyphase hygrochronology. Contributions to Mineralogy and Petrology 167(5), paper 1010, 1-17, doi: 10.1007/s00410-014-1010-x.
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Spettrometro di massa per gas nobili Noblesse

Campioni misurati 2013-2021

Gestione economica 2015-2022