Dating polygenetic metamorphic assemblages along atransect across thewestern alps

Journal of Petrology

Volumn 55, Issue 4, 2014, Pages 803-830

  Villa, Igor M ^a,b   Bucher, Stefan ^c,d   Bousquet, Romain ^c,e   Kleinhanns, Ilka C ^a,f   Schmid, Stefan M ^c,g  

^a UNIVERSITY OF BERN   (Switzerland)

^b UNIVERSITY OF MILANO BICOCCA   (Italy)

^c UNIVERSITY OF BASEL   (Switzerland)

^d Institut für Geowissenschaften Christian Albrechts Universität ^*  (Switzerland)

^e UNIVERSITY OF KIEL   (Germany)

^f UNIVERSITY OF TÜBINGEN   (Germany)

^g ETH ZURICH   (Switzerland)

Author keywords

Ar diffusion; Eclogite dating; Retrograde reaction dating; Western alps

Indexed keywords

AGE DETERMINATION; ARGON-ARGON DATING; ECLOGITE; EXHUMATION; GREENSCHIST FACIES; METAMORPHISM; MINERALOGY; NAPPE; POTASSIUM-ARGON DATING; RECRYSTALLIZATION; THERMOCHRONOLOGY;

ALPS; BRIANCONNAIS ZONE; CENTRAL ALPS; FRANCE; ITALY; MONTE ROSA; PENNINE ALPS; WESTERN ALPS;

EID: 84896120225     PISSN: 00223530     EISSN: 14602415     Source Type: Journal    
DOI: 10.1093/petrology/egu007     Document Type: Article

References (118)

1. 39Ar constraints and implications for the Western Alps. Journal of Metamorphic Geology 20, 599-618.
2. 40Ar ages of micas. Journal of Petrology 52, 691-716.
3. Amstuz, A. (1955). Rocher du ravin de Lessert dans la Val D'Aoste. Archives des Sciences de Genève 8, 6-9.
4. Amstuz, A. (1962). Notice pour une carte géologique de la Vallée de Cogne et de quelques autres espaces au Sud d'Aoste. Archives des Sciences de Genève 15, 1-104.
5. Bachmann, R., Glodny, J., Oncken, O. & Seifert, W. (2009). Abandonment of the South-Penninic-Austroalpine paleosubduction zone, Central Alps, and shift from subduction erosion to accretion: constraints from Rb/Sr geochronology. Journal of the Geological Society, London 166, 217-231.
6. Ballèvre, M. & Merle, O. (1993). The Combin Fault: compressional reactivation of a Late Cretaceous-EarlyTertiary detachment fault in the Western Alps. Schweizerische Mineralogische und Petrographische Mitteilungen 73, 205-227.
7. Baudin, T. (1987). é tude géologique du Massif du Ruitor (Alpes franco-italiennes): évolution structurale d'un socle briançonnais. PhD thesis, Université de Grenoble, 243 pp.
8. Belluso, E., Ruffini, R., Schaller, M. & Villa, I. M. (2000). Electronmicroscope and Ar characterization of chemically heterogeneous amphiboles from the Palala Shear Zone, Limpopo Belt, South Africa. EuropeanJournal of Mineralogy 12, 45-62.
9. Bertrand, J. M., Pidgeon, R.T., Leterrier, J., Gouillot, F., Gasquet, D. & Gattiglio, M. (2000). SHRIMP and IDTIMS U-Pb zircon ages of the pre-Alpine basement in the Internal Western Alps (Savoy and Piemont). Schweizerische Mineralogische und Petrographische Mitteilungen 80, 225-248.
10. Bocquet, J. (1974a). Le socle briançonnais de Vanoise (Savoie): arguments en faveur de son âge anté-alpin et de son polymétamorphisme. Comptes Rendus de l'Académie des Sciences 278, 2601-2604.
11. Bocquet, J. (1974b). é tudes minéralogiques et pétrographiques sur les métamorphismes d'âge alpin dans les Alpes françaises. PhD thesis, Université de Grenoble, 490 pp.
12. Bousquet, R. (2008). Metamorphic heterogeneities within a single HP unit: Overprint effect or metamorphic mix? Lithos 103, 46-69.
13. Bousquet, R., Oberhänsli, R., Goffé, B., Jolivet, L. & Vidal, O. (1998). High-pressure-low-temperature metamorphism and deformation in the Bü ndnerschiefer of the Engadine window: implications for the regional evolution of the eastern Central Alps. Journal of Metamorphic Geology 16, 657-674.
14. Bousquet, R., Goffé, B., Vidal, O., Oberhänsli, R. & Patriat, M. (2002). The tectono-metamorphic history of the Valaisan domain from theWestern to the Central Alps: New constraints on the evolution of the Alps. Geological Society of America Bulletin 114, 207-225.
15. 39Ar and Rb-Sr white mica ages from Syros and Sifnos, Greece: a record of continuous (re)crystallization during exhumation? Journal of Metamorphic Geology 31, 629-646.
16. Bucher, S. (2003). The Briançonnais units along the ECORS-CROP transect (Italian-French Alps): structures, metamorphism and geochronology. PhD thesis, Universität Basel, 175 pp.
17. Bucher, S. & Bousquet, R. (2007). Metamorphic evolution of the Briançonnais units along the ECORS-CROP profile (Western Alps): New data on metasedimentary rocks. Swiss Journal of Geosciences 100, 227-242.
18. Bucher, S., Schmid, S. M., Bousquet, R. & Fü genschuh, B. (2003). Late-stage deformation in a collisional orogen (Western Alps): nappe refolding, back-thrusting or normal faulting. Terra Nova 15, 109-117.
19. Bucher, S., Ulardic, C., Bousquet, R., Ceriani, S., Fü genschuh, B., Gouffon, Y. & Schmid, S. M. (2004). Tectonic evolution of the Briançonnais units along a transect (ECORS-CROP) through the Western Alps. Eclogae Geologicae Helvetiae 97, 321-346.
20. Caby, R. (1996). Low-angle extrusion of high-pressure rocks and the balance between outward and inward displacements of Middle Penninic units in the Western Alps. Eclogae Geologicae Helvetiae 89, 229-267.
21. Ceriani, S. & Schmid, S. M. (2004). From N-S collision toWNW-directed post-collisional thrusting and folding: Structural study of the Frontal Penninic Units in Savoie (Western Alps, France). Eclogae Geologicae Helvetiae 97, 347-369.
22. Ceriani, S., Fü genschuh, B. & Schmid, S. M. (2001). Late-stage thrusting at the 'Penninic Front' in the Western Alps between Mont Blanc and Pelvoux massifs. International Journal of Earth Sciences 90, 685-702.
23. 39Ar and UV laserprobe analysis of the Alpine Roffna shear zone. Chemical Geology 197, 3-19.
24. Chopin, C. & Maluski, H. (1980). 40Ar-39Ar dating of high pressure metamorphic micas from the Gran Paradiso area (Western Alps): evidence against the blocking temperature. Contributions to Mineralogy and Petrology 74, 109-122.
25. Chopin, C. & Monié, P. (1984). A unique magnesiochloritoid-bearing, high-pressure assemblage from the Monte Rosa, Western Alps: petrologic and 40Ar-39Ar radiometric study. Contributions to Mineralogy and Petrology 87, 388-398.
26. Cigolini, C. (1995). Geology of the Internal Zone of the Grand Saint Bernard Nappe: a metamorphic Late Paleozoic volcano-sedimentary sequence in South-Western Aosta Valley (Western Alps). In: Lombardo, B. (ed.) Studies on Metamorphic Rocks and Minerals of the Western Alps. A Volume in Memory of Ugo Pognante. Bollettino del Museo Regionale di Scienze NaturaliTorino (Supplemento) 13, 293-328.
27. Cole, D. R., Ohmoto, H. & Lasaga, A. C. (1983). Isotopic exchange in mineral-fluid systems. I. Theoretical evaluation of oxygen isotopic exchange accompanying surface reactions and diffusion. Geochimica et Cosmochimica Acta 47, 1681-1693.
28. Dahl, P. S. (1996a). The effects of composition on retentivity of Ar and O in hornblende and related amphiboles: a field-tested empirical model. Geochimica et Cosmochimica Acta 60, 3687-3700.
29. Dahl, P. S. (1996b). The crystal-chemical basis for Ar retention in micas: inferences from interlayer partitioning and implications for geochronology. Contributions to Mineralogy and Petrology 123, 22-39.
30. Dal Piaz, G. V. (1999). The Austroalpine-Piedmont nappe stack and the puzzle of alpineTethys. Memorie di Scienze Geologiche 51, 155-176.
31. Dal Piaz, G. V., Cortiana, G., Del Moro, A., Martin, S., Pennacchioni, G. & Tartarotti, P. (2001). Tertiary age and paleostructural inferences of the eclogitic imprint in the Austroalpine outliers and Zermatt-Saas ophiolite, western Alps. InternationalJournal of Earth Sciences 90, 668-684.
32. De Sigoyer, J., Chavagnac,V., Blichert-Toft, J.,Villa, I. M., Luais, B., Guillot, S., Cosca, M. A. & Mascle, G. (2000). Dating the Indian continental subduction and collisional thickening in the northwest Himalaya: Multichronology of the Tso Morari eclogites. Geology 28, 487-490.
33. Dewey, J. F., Helman, M. L.,Turco, E., Hutton, D. H.W. & Knott, S. D. (1989). Kinematics of the western Mediterranean. In: Coward, M. P., Dietrich, D. & Park, R. G. (eds) Alpine Tectonics. Geological Society, London, Special Publications 45, 265-283.
34. Di Vincenzo, G., Ghiribelli, B., Giorgetti, G. & Palmeri, R. (2001). Evidence of a close link between petrology and isotope records; constraints from SEM, EMP,TEMand in situ 40Ar-39Ar laser analyses on multiple generations of white micas (Lanterman Range, Antarctica). Earth and Planetary Science Letters 192, 389-405.
35. DiVincenzo, G., Carosi, R. & Palmeri, R. (2004).The relationship between tectono-metamorphic evolution and argon isotope records in white mica: constraints from in situ 40Ar-39Ar laser analysis of theVariscan basement. Journal of Petrology 45, 1013-1043.
36. Dodson, M. H. (1973). Closure temperature in cooling geochronological and petrological systems. Contributions to Mineralogy and Petrology 40, 259-274.
37. Droop, G. T. R., Lombardo, B. & Pognante, U. (1990). Formation and distribution of eclogite facies rocks in the Alps. In: Carswell, E. D. A. (ed.) Eclogite Facies Rocks. Glasgow: Blackie, pp. 225-259.
38. Ellenberger, F. (1958). É tude géologique du pays de Vanoise. Mémoire du Service Géologique de France, 561p.
39. Elter, G. (1960). La zona pennidica dell'alta e media Val d'Aosta e le unita' limitrofe. Memorie dell'Istituto di Geologia dell'Universita' di Padova 22, 113.
40. Elter, G. (1972). Contribution a' la connaissance du Briançonnais interne et de la bordure piémontaise dans les Alpes Graies nordorientales et considérations sur les rapports entre les zones du Briançonnais et des Schistes Lustrés. Memorie dell'Istituto di Geologia dell'Universita' di Padova 28, 1-19.
41. Engi, M., Scherrer, N. & Burri, T. (2001). Metamorphic evolution of pelitic rocks of the Monte Rosa Nappe; constraints from petrology and single grain monazite age data. Schweizerische Mineralogische und Petrographische Mitteilungen 81, 305-328.
42. Fabre, J. (1961). Contribution a' l'étude de la Zone Houillère Briançonnais en Maurienne et en Tarentaise (Alpes Savoie). Mémoires du Bureau de Recherches Géologiques etMinières 2, 315 p.
43. Federico, L., Capponi, G., Crispini, L., Scambelluri, M. & Villa, I. M. (2005). 39Ar/40Ar dating of high-pressure rocks from the Ligurian Alps: evidence for a continuous subduction-exhumation cycle. Earth and Planetary Science Letters 240, 668-680.
44. Feys, R. (1963).é tude géologique du Carbonifère briançonnais (Hautes-Alpes). Mémoires du Bureau de Recherches Géologiques etMinières 6, 387 p.
45. Foland, K. A. (1979). Limited mobility of argon in metamorphic terrains. Geochimica et Cosmochimica Acta 43, 793-801.
46. 39Ar incremental heating plateaus for biotites with excess Ar. Chemical Geology 41, 3-21.
47. Freeman, S. R., Inger, S., Butler, R. W. H. & Cliff, R. A. (1997). Dating deformation using Rb-Sr in white mica: Greenschist facies deformation ages from the Entrelor shear zone, Italian Alps. Tectonics 16, 57-76.
48. Freeman, S. R., Butler, R. W. H., Cliff, R. A., Inger, S. & Barnicoat, A. C. (1998). Deformation migration in an orogenscale shear zone array: an example from the Basal Briançonnais Thrust, internal Franco-Italian Alps. Geological Magazine 135, 349-367.
49. Frezzotti, M. L., Cesare, B. & Scambelluri, M. (2004). Fluids at extreme P-T metamorphic conditions: the message from high-grade rocks. Periodico di Mineralogia 73,Special Issue 2, 209-219.
50. Fügenschuh, B. & Schmid, S. M. (2003). Late stages of deformation and exhumation of an orogen constrained by fission-track data: a case study in theWestern Alps. Geological Society of America Bulletin 115, 1425-1440.
51. Fügenschuh, B., Loprieno, A., Ceriani, S. & Schmid, S. (1999). Structural analysis of the Subbriançonnais and Valais units in the area of Moûtiers (Savoy,Western Alps): paleogeographic and tectonic consequences. InternationalJournal of Earth Sciences 88, 201-218.
52. Giletti, B. J. (1974). Studies in diffusion I: argon in phlogopite mica. In: Hofmann, A. W., Giletti, B. J., Yoder, H. S. & Yund, R. A. (eds) Geochemical Transport and Kinetics. Carnegie Institution of Washington Publication 634, 107-115.
53. Giorgis, D., Thélin, P., Stampfli, G. M. & Bussy, F. (1999). The Mont-Mort metapelites: Variscan metamorphism and geodynamic context (Briançonnais basement, Western Alps, Switzerland). Schweizerische Mineralogische und Petrographische Mitteilungen 79, 381-398.
54. Gouffon,Y. (1993). Géologie de la 'nappe'du Grand St-Bernard entre la Doire Baltée et la frontière suisse (Vallée d'AosteçItalie). Mémories de Géologie (Lausanne) 12, 147 p.
55. Graham, C. M. (1981). Experimental hydrogen isotope studies III: Diffusion of hydrogen in hydrous minerals, and stable isotope exchange in metamorphic rocks. Contributions to Mineralogy and Petrology 76, 216-228.
56. Gréber, C. (1965). Flore et stratigraphie du Carbonifère des Alpes françaises. Mémoires du Bureau de Recherches Géologiques etMinières 21, 380 p.
57. Hames,W. E. & Cheney, J.T. (1997). On the loss of 40Ar* from muscovite during polymetamophism. Geochimica et Cosmochimica Acta 61, 3863-3872.
58. 39Ar and microprobe analyses on white K-micas. Schweizerische Mineralogische und Petrographische Mitteilungen 71, 261-274.
59. Harrison, T. M., Célérier, J., Aikman, A. B., Hermann, J. & Heizler, M. T. (2009). Diffusion of 40Ar in muscovite. Geochimica et Cosmochimica Acta 73, 1039-1051.
60. 39Ar Dating: from Geochronology to Thermochronology, from Archaeology to Planetary Sciences. Geological Society, London, Special Publications 378, 69-78.
61. 39Ar spectra of biotitesçevidence from hydrothermal degassing experiments andTEM studies. Chemical Geology 66, 137-149.
62. Hetherington, C. J. & Villa, I. M. (2007). Barium silicates of the Berisal Complex, Switzerland: A study in geochronology and rare-gas release systematics. Geochimica et Cosmochimica Acta 71, 3336-3347.
63. 39Ar age gradients in micas from a high-temperature-low-pressure metamorphic terrain; evidence for very slow cooling and implications for the interpretation of age spectra. Geology 22, 55-58.
64. Jäger, E. (1967). Kritische Betrachtungen zur Interpretation der Alterswerte. In: Jäger, E., Niggli, E. & Wenk, E. (eds) Altersbestimmungen an Glimmern in den Zentralalpen. Beiträge zur Geologischen Karte, Neue Folge 134, 38-40.
65. Keller, L. M., Abart, R., Stü nitz, H. & De Capitani, C. (2004). Deformation, mass transfer and reactions in an eclogite facies shear zone in a polymetamorphic metapelite (Monte Rosa, Western Alps). Journal of Metamorphic Geology 22, 97-118.
66. Keller, L. M., Hess, M., Fü genschuh, B. & Schmid, S. M. (2005). Structural and metamorphic evolution of the Camughera-Moncucco, Antrona and Monte Rosa units southwest of the Simplon line,Western Alps. Eclogae Geologicae Helvetiae 98, 19-49.
67. Kelley, S. P. (2002). Excess argon in K-Ar and Ar-Ar geochronology. Chemical Geology 188, 1-22.
68. Kleinhanns, I. C., Kreissig, K., Kamber, B. S., Meisel,T., Nä gler,T. F. & Kramers, J. D. (2002). Combined chemical separation of Lu, Hf, Sm, Nd and REEs from a single rock digest: precise and accurate isotope determinations of Lu-Hf and Sm-Nd using multicollector-ICPMS. Analytical Chemistry 74, 67-73.
69. Kuiper, K. F., Deino, A., Hilgen, F. J., Krijgsman,W., Renne, P. R. & Wijbrans, J. R. (2008). Synchronizing the rock clocks of Earth History. Science 320, 500-504.
70. 39Ar age spectrum technique. Earth and Planetary Science Letters 32, 141-148.
71. Lasaga, A. C. (1986). Metamorphic reaction rate laws and development of isograds. MineralogicalMagazine 50, 359-373.
72. Livi, K. J. T. & Abad, I. (2013). The role of transmission electron microscopy in the study of micas and related minerals in selected metamorphic environments. In: Nieto, F. & Livi, K. J. T. (eds) Minerals at the Nanoscale. EMUNotes in Mineralogy 14, 217-259.
73. Loprieno, A., Bousquet, R., Bucher, S., Ceriani, S., DallaTorre, F. H., Fü genschuh, B. & Schmid, S. M. (2011). The Valais units in Savoy (France): a key area for understanding the palaeogeography and the tectonic evolution of the Western Alps. International Journal of Earth Sciences 100, 963-992.
74. Lugmair, G. W. & Marti, K. (1978). Lunar initial 143Nd/144Nd: Differential evolution of the lunar crust and mantle. Earth and Planetary Science Letters 39, 349-357.
75. Malusa', M. G., Polino, R. & Martin, S. (2005). The Gran San Bernardo nappe in the Aosta valley (western Alps): a composite stack of distinct continental crust units. Bulletin de la Société Géologique de France 176, 417-431.
76. Malusa', M. G., Polino, R. & Zattin, M. (2009). Strain partitioning in the axial NWAlps since the Oligocene.Tectonics 28,TC3005.
77. Malusa', M. G., Faccenna, C., Garzanti, E. & Polino, R. (2011). Divergence in subduction zones and exhumation of high pressure rocks (EoceneWestern Alps). Earth and Planetary Science Letters 310, 21-32.
78. 39Ar geochronology of synkinematic white mica in the Siviez-Mischabel Nappe, western Pennine Alps, Switzerland.Tectonics 17, 407-425.
79. Massonne, H.-J. & Schreyer,W. (1987). Phengite geobarometry based on the limiting assemblage with K-feldspar, phlogopite, and quartz. Contributions to Mineralogy and Petrology 96, 212-224.
80. Mercier, D. & Beaudoin, B. (1987). Révision du Carbonifère Briançonnais: Stratigraphie et évolution du bassin. Géologie Alpine 13, 25-31.
81. 40Ar appliquée au metamorphism alpin dans le massif du Mont-Rose (Alpes Occidentales). Chronologie détaillée depuis 110 Ma. Eclogae Geologicae Helvetiae 78, 487-516.
82. 39Ar ages through high-pressure low-temperature Alpine metamorphism in the Western Alps. EuropeanJournal of Mineralogy 2, 343-361.
83. Mü ller, W. (2003). Strengthening the link between geochronology, textures and petrology. Earth and Planetary Science Letters 206, 237-251.
84. 39Ar stepwise-heating, laser ablation and Rb-Sr microsampling analyses. Contributions to Mineralogy and Petrology 144, 57-77.
85. Nazzareni, S., Comodi, P., Bindi, L., Safonov, O. G., Litvin,Yu. A. & Perchuk, L. L. (2008). Synthetic hypersilicic Cl-bearing mica in the phlogopite-celadonite join: A multimethodical characterization of the missing link between di-and tri-octahedral micas at high pressures. American Mineralogist 93, 1429-1436.
86. Parra,T.,Vidal, O. & Jolivet, L. (2002). Relation between the intensity of deformation and retrogression in blueschist metapelites of Tinos Island (Greece) evidenced by chlorite-mica local equilibria. Lithos 63, 41-66.
87. Philippot, P., Blichert-Toft, J., Perchuk, A., Costa, S. & Gerasimov,V. (2001). Lu-Hf and Ar-Ar chronometry supports extreme rate of subduction zone metamorphism deduced from geospeedometry. Tectonophysics 342, 22-38.
88. Purdy, J.W. & Jäger, E. (1976). K-Ar ages on rock-forming minerals from the Central Alps. Memorie dell'Istituto di Geologia dell'Universita' di Padova 30, 1-32.
89. Putnis, A. (2009). Mineral replacement reactions. In: Oelkers, E. H. & Schott, J. (eds) Thermodynamics and Kinetics ofWater-Rock Interaction. Mineralogical Society of America and Geochemical Society, Reviews in Mineralogy and Geochemistry 70, 689-708.
90. Reddy, S. M., Wheeler, J. & Cliff, R. A. (1999). The geometry and timing of orogenic extension: an example from theWestern Italian Alps. Journal of Metamorphic Geology 17, 573-589.
91. Reddy, S. M.,Wheeler, J., Butler, R.W. H., Cliff, R. A., Freeman, S., Inger, S., Pickles, C. & Kelley, S. P. (2003). Kinematic reworking and exhumation within the convergent Alpine Orogen. Tectonophysics 365, 77-102.
92. 39Ar spectra from hornblendes: Thermal loss or contamination? Chemical Geology 103, 271-281.
93. Rosenbaum, G., Menegon, L., Glodny, J., Vasconcelos, P., Ring, U., Massironi, M., Thiede, D. & Nasipuri, P. (2012). Dating deformation in the Gran Paradiso Massif (NW Italian Alps): Implications for the exhumation of high-pressure rocks in a collisional belt. Lithos 144, 130-144.
94. Roure, F., Bergerat, F., Damotte, B., Mugnier, J.-L. & Polino, R. (1996). The ECORS-CROP Alpine seismic traverse. Mémoires de la Société Géologique de France 170, 113 p.
95. Scherer, E. E., Mü nker, C. & Mezger, K. (2001). Calibration of the lutetium-hafnium clock. Science 293, 683-686.
96. Schmid, S. M. & Kissling, E. (2000). The arc of theWestern Alps in the light of new data on deep crustal structure.Tectonics 19, 62-85.
97. Schmid, S. M., Fü genschuh, B., Kissling, E. & Schuster, R. (2004). Tectonic map and overall architecture of the Alpine orogen. Eclogae Geologicae Helvetiae 97, 93-117.
98. 39Ar dating of Penninic front displacement (WAlps) during the Lower Oligocene (31-34 Ma).Terra Nova 21, 127-136.
99. Steiger, R. H. & Jäger, E. (1977). Subcommission on Geochronology: Convention on the use of decay constants in geo-and cosmochronology. Earth and Planetary Science Letters 36, 359-362.
100. Trümpy, R. (1966). Considérations générales sur le 'Verrucano' des Alpes Suisses. Atti Societa' Toscana Scienze Naturali, Volume Speciale del Simposium sulVerrucano, Pisa 1966, 212-232.
101. Ulardic, C. (2001). Strukturgeologische und petrographische Untersuchungen im Valgrisenche (Briançonnais der italienischen Alpen). MSc thesis, Universität Freiburg, 100 pp.
102. Valente, A. & Borghi, A. (2000). Tectono-metamorphic evolution of the anthracite-bearing basin of La Thuile (External Briançonnais zone). Géologie Alpine 76, 151-163.
103. Vance, D., Mü ller,W. & Villa, I. M. (2003). Geochronology: linking the isotopic record with petrology and texturesçan introduction. In:Vance, D., Müller,W. & Villa, I. M. (eds) Geochronology: Linking the Isotopic Record with Petrology and Textures. Geological Society, London, Special Publications 220, 1-24.
104. Villa, I. M. (1998). Isotopic closure.Terra Nova 10, 42-47.
105. Villa, I. M. (2001). Radiogenic isotopes in fluid inclusions. Lithos 55, 115-124.
106. Villa, I. M. (2006). From the nm to the Mm: isotopes, atomic-scale processes, and continent-scale tectonic models. Lithos 87, 155-173.
107. Villa, I. M. (2010). Disequilibrium textures vs equilibrium modelling: geochronology at the crossroads. In: Spalla, M. I., Marotta, A. M. & Gosso, G. (eds) Advances in Interpretation of Geological Processes. Geological Society, London, Special Publications 332, 1-15.
108. Villa, I. M. & Hanchar, J. M. (2013). K-feldspar hygrochronology. Geochimica et Cosmochimica Acta 101, 24-33.
109. Villa, I. M. & Puxeddu, M. (1994). Geochronology of the Larderello geothermal field; new data and the 'closure temperature' issue. Contributions to Mineralogy and Petrology 115, 415-426.
110. Villa, I. M. & Williams, M. L. (2013). Geochronology of metasomatic events. In: Harlov, D. E. & Austrheim, H. (eds) Metasomatism and the ChemicalTransformation of Rock. Berlin: Springer, pp. 171-202.
111. Villa, I. M., Grobéty, B., Kelley, S. P., Trigila, R. W. & Wieler, R. (1996). Assessing Ar transport paths and mechanisms in the McClure Mountains hornblende. Contributions to Mineralogy and Petrology 126, 67-80.
112. Villa, I. M., Ruggieri, G. & Puxeddu, M. (1997). Petrological and geochronological discrimination of two white-mica generations in a granite cored from the Larderello-Travale geothermal field (Italy). EuropeanJournal of Mineralogy 9, 563-568.
113. 40Ar dating of multiply zoned amphibole generations (Malenco, Italian Alps). Contributions to Mineralogy and Petrology 140, 363-381.
114. Villa, I. M., Ruggieri, G., Puxeddu, M. & Bertini, G. (2006). Geochronology and isotope transport systematics in a subsurface granite from the Larderello-Travale geothermal system (Italy). Journal of Volcanology and Geothermal Research 152, 20-50.
115. 39Ar ages in an exhumed ultra-high pressure terrane. Lithos 155, 30-48.
116. 39Ar age spectra in amphiboles. Earth and Planetary Science Letters 134, 393-407.
117. 39Ar dating of white micas from an Alpine high-pressure metamorphic belt on Naxos: the resetting of the argon isotopic system. Contributions to Mineralogy and Petrology 93, 187-194.
118. Worley, B., Powell, R. & Wilson, C. J. L. (1997). Crenulation cleavage formation: Evolving diffusion, deformation and equilibration mechanisms with increasing metamorphic grade. Journal of Structural Geology 19, 1121-1135.