Browse by Basel Contributors ID

Min, Myo. and Ratschbacher, Lothar and Franz, Leander and Hacker, Bradley R. and Enkelmann, Eva and Toreno, Eko Yoan and Härtel, Birk and Schurr, Bernd and Tichomirowa, Marion and Pfänder, Jörg A.. (2022) India (Tethyan Himalaya Series) in central Myanmar: implications for the evolution of the Eastern Himalayan Syntaxis and the Sagaing transform-fault system. Geophysical Research Letters, 49 (12). e2022GL099140.

Phyo, Myint M. and Franz, Leander and Romer, Rolf L. and de Capitani, Christian and Balmer, Walter A. and Krzemnicki, Michael S.. (2022) Petrology, geothermobarometry and geochemistry of granulite facies wall rocks and hosting gneiss of gemstone deposits from the Mogok area (Myanmar). Journal of Asian Earth Sciences: X, 9. p. 100132.

Min, Myo and Ratschbacher, Lothar and Franz, Leander and Hacker, Bradley R. and Enkelmann, Eva and Toreno, Eko Yoan and Härtel, Birk and Schurr, Bernd and Tichomirowa, Marion and Pfänder, Jörg A.. (2022) Provenance and pressure-temperature-time-deformation evolution of Indian crust in central Myanmar. GFZ Data Services. p. 19.

Hänggi, Philipp and Franz, Leander and Krzemnicki, Michael S.. (2022) Examination of the microstructure and composition of jadeite jade - a combination of X-ray microtomography and petrographic methods. In: Abstract Volume 20th Swiss Geoscience Meeting, 1. Lausanne, pp. 96-97.

Hänni, Henry and Brunk, Richard and Franz, Leander. (2021) An investigation of grinding hardness of some ornamental stones. The Journal of Gemmology, 37 (6). pp. 632-643.

Hänni, Henry and Brunk, Richard and Franz, Leander. (2021) Zur Ermittlung der Schleifhärte einiger Schmucksteine. Zeitschrift der Deutschen Gemmologischen Gesellschaft, 70 (1-2). pp. 37-54.

Phyo, Myint Myat and Wang, Hao A. O. and Guillong, Marcel and Berger, Alfons and Franz, Leander and Balmer, Walter A. and Krzemnicki, Michael S.. (2020) U-Pb dating of zircon and zirconolite inclusions in marble-hosted gem-quality ruby and spinel from Mogok, Myanmar. Minerals, 10 (2). p. 195.

Bader, Thomas and Zhang, Lifei and Li, Xiaowei and Xia, Bin and Franz, Leander and De Capitani, Christian and Li, Quinyun. (2020) High-P granulites of the Songshugou area (Qinling Orogen, east-central China): Petrography, phase relations, and U/Pb zircon geochronology. Journal of Metamorphic Geology, 38 (4). pp. 421-450.

Hänni, Henry A. and Franz, Leander and Wang, Hao. (2020) Deep Purple - Vesuvianit (Idokras) aus Pakistan. Zeitschrift der Deutschen Gemmologischen Gesellschaft, 69 (1-2). pp. 59-64.

Hänni, H. A. and Franz, L. and Wang, H. A. O.. (2020) Deep purple vesuvianite (idocrase) from Pakistan. The Australian Gemmologist, 27 (3). pp. 136-139.

Vögtli, M. and Kuhn, N. J. and Franz, L. and de Capitani, C. and Koziol, M.. (2019) Lichtoptische und geochemische Analyse der Tephraschichten aus dem Hinkelsmaar in der Westeifel. Mainzer Naturwissenschaftliches Archiv, 56 (1). pp. 29-41.

Phyo, Myint Myat and Bieler, Eva and Franz, Leander and Balmer, Walter and Krzemnicki, Michael S.. (2019) Spinel from Mogok, Myanmar - A detailed inclusion study by Raman microspectroscopy and scanning electron microscopy. The Journal of Gemmology, 36 (5). pp. 418-435.

Wolf, Mathias and Romer, Rolf L. and Franz, Leander and López-Moro, Javier F.. (2018) Tin in granitic melts: the role of melting temperature and protolith composition. Lithos, 310. pp. 20-30.

Hänni, Henry A. and Franz, Leander and Wang, Hao. (2018) Anorthit-Skarn mit eingestreutem Chrom-Hydrogrossular aus der Gegend von Muslim Bagh, Pakistan. Zeitschrift der Deutschen Gemmologischen Gesellschaft, 67 (1-2). pp. 51-58.

Hänni, Henry A. and Franz, Leander and Wang, Hao. (2018) Anorthite skarn with dispersed chromium-hydrogrossular from Muslim Bagh area, Pakistan. The Australian Gemmologist, 26 (11-12). pp. 286-290.

Wolf, Mathias and Romer, Rolf and Franz, Leander. (2018) Tin mobilization during melt generation. In: GEOBONN 2018. Abstract. Bonn, Germany, p. 196.

Phyo, Myint Myat and Guillong, Marcel and Berger, Alfons and Balmer, Walter and Franz, Leander and Wang, Hao A.O. and Krzemnicki, Michael S.. (2018) A geochronological study of zircon and zirconolite observed in ruby and spinel gemstones and in marble host rock from Mogok, Myanmar. In: 16th Swiss Geoscience Meeting Bern, Abstract Volume. A habitable Planet. Bern, pp. 122-123.

Phyo, Myint Myat and Bieler, Eva and Franz, Leander and Balmer, Walter and Krzemnicki, Michael S.. (2018) A new suite of inclusions in spinel from Mogok (Myanmar) - a study using Raman microspectroscopy and scanning electron microscopy. In: 16th Swiss Geoscience Meeting Bern, Abstract Volume. A habitable Planet. Bern, p. 159.

Sun, Tay Thye and Franz, Leander and Li, Jianjun. (2017) Tianhuang, an unusual yellow stone: dickite or nacrite? The Journal of Gemmology, 35 (6). pp. 472-474.

Hänni, H. A. and Franz, L. and Wei, Z.. (2017) A new ornamental gemstone from Pakistan: Sannan-Skarn. In: Proceedings of the 35th International Gemmological Conference (IGC 2017). pp. 146-147.

Franz, Leander and Krzemnicki, Michael and Ernst, Kristina and De Capitani, Christian and Harlow, George E. and Kouznetsov, Nicolai. (2017) Kosmochlor-bearing jadeite rocks from Kenterlau-Itmurundy (Lake Balkhash, Kazakhstan). In: Proceedings of the 35th International Gemmological Conference (IGC 2017). pp. 154-155.

Hänni, Henry and Franz, Leander. (2016) Sannan-Skarn, ein neuer Schmuckstein aus Pakistan. Zeitschrift der Deutschen Gemmologischen Gesellschaft, 1-2 (65). pp. 41-46.

Hänni, Henry A. and Franz, Leander and Wei, Zhou. (2016) A new deposit of complex fine-grained rocks from Western Pakistan: Sannan-Skarn. Journal of Gems and Gemmology, 5 (18). pp. 1-6.

Freanz, Leander and Thye Sun, Tay and Wirth, Richard and De Capitani, Christian and Hui Ying, Loke. (2016) Violet-to-blue 'nuummite' from Simiuttat, Greenland: origin of colour appearance and conditions of formation. The Journal of Gemmology, 35 (4). pp. 330-339.

Hänni, Henry A. and Franz, Leander and Wei, Zhou. (2016) A new ornamental gemstone from Pakistan: Sannan-Skarn. Proceedings of the 5th International Gem and Jewelry Conference (GIT 2016), 1 (1). pp. 55-61.

Hänni, Henry A. and Franz, Leander and Wei, Zhou. (2016) Une nouvelle roche ornamentale du Pakistan: Sannan Skarn. Revue de l'Association Française de Gemmologie (198). pp. 22-24.

Jia, Binyang and Tang, Ya and Tian, Liyan and Franz, Leander and Alewell, Christine and Huang, Jen-How. (2015) Impact of Fish Farming on Phosphorus in Reservoir Sediments. Scientific Reports, 5. p. 16617.

Krzemnicki, Michael S. and Franz, Leander. (2015) Saguaro Stone, a new ornamental material from Arizona (USA). The Journal of Gemmology, 34 (7). pp. 567-569.

Bader, Thomas and Franz, Leander and De Capitani, Christian and Zhang, Lifei. (2014) The effect of water activity on calculated phase equilibria and garnet isopleth thermobarometry of granulites, with particular reference to Tongbai (east-central China). European journal of mineralogy, 26 (1). pp. 5-23.

Franz, Leander and Thye Sun, Tay and Hänni, Henry A. and De Capitani, Christian and Thanasuthipitak, Theerapongs and Atichat, Wilawan. (2014) A comparative study of jadeite, omphacite and kosmochlor jades from Myanmar, and suggestions for a practical nomenclature. The Journal of Gemmology, 34 (3). pp. 210-229.

Soustelle, Vincent and Tomassi, Andréa and Demouchy, Sylvie and Franz, Leander. (2013) Melt-rock interactions, deformation, hydration and seismic properties in sub-arc lithospheric mantle inferred from xenoliths from seamounts near Lihir, Papua New Guinea. Tectonophysics, 608. pp. 330-345.

Bader, Thomas and Franz, Leander and Ratschbacher, Lothar and de Capitani, Christian and Webb, A. Alexander G. and Yang, Zhao and Pfänder, Jörg A. and Hofmann, Mandy and Linnemann, Ulf. (2013) The Heart of China revisited: II Early Paleozoic (ultra)high-pressure and (ultra)high-temperature metamorphic Qinling orogenic collage. Tectonics, 32 (4). pp. 922-947.

Franz, Leander and Romer, Rolf L. and de Capitani, Christian. (2013) Protoliths and phase petrology of whiteschists. Contributions to Mineralogy and Petrology, 166 (1). pp. 255-274.

Bader, Thomas and Ratschbacher, Lothar and Franz, Leander and Yang, Zhao and Hofmann, Mandy and Linnemann, Ulf and Yuan, Honglin. (2013) The heart of China revisited, I. Proterozoic tectonics of the Qin mountains in the core of supercontinent Rodinia. Tectonics, 32 (3). pp. 661-687.

Franz, Leander and Romer, Rolf L.. (2010) Different styles of metasomatic veining in ultramafic xenoliths from the TUBAF Seamount (Bismarck Microplate, Papua New Guinea). Lithos, 114 (1-2). pp. 30-53.

Petersen, Sven and Kuhn, Kerstin and Kuhn, Thomas and Augustin, Nico and Hékinian, Roger and Franz, Leander and Borowski, Christian. (2009) The geological setting of the ultramafic-hosted Logatchev hydrothermal field (14°45′N, Mid-Atlantic Ridge) and its influence on massive sulfide formation. Lithos, 112 (1-2). pp. 40-56.

Ratschbacher, Lothar and Franz, Leander and Min, Myo and Bachmann, Raik and Martens, Uwe and Stanek, Klaus and Stuebner, Konstanze and Nelson, Bruce K. and Herrmann, Uwe and Weber, Bodo and Lopez-Martinez, Margarita and Jonckheere, Raymond and Sperner, Blanka and Tichomirowa, Marion and McWilliams, Michael O. and Gordon, Mark and Meschede, Martin and Bock, Peter. (2009) The North American-Caribbean Plate boundary in Mexico-Guatemala-Honduras. In: The Origin and Evolution of the Caribbean Plate. pp. 219-293.

Franz, Leander and Romer, Rolf L.. (2007) Caledonian high-pressure metamorphism in the Strona-Ceneri Zone (Southern Alps of southern Switzerland and northern Italy). Swiss Journal of Geosciences, 100 (3). pp. 457-467.

Broecker, M. and Franz, L.. (2006) Dating metamorphism and tectonic juxtaposition on Andros Island (Cyclades, Greece): results of a Rb-Sr study. Geological magazine, 143 (5). pp. 609-620.

Romer, Rolf L. and Franz, Leander and Wirth, Richard. (2006) Chemical and isotopic effects of retrogression in metamorphic fluid inclusions. Contributions to Mineralogy and Petrology, 151 (2). pp. 174-186.

Ratschbacher, Lothar and Franz, Leander and Enkelmann, Eva and Jonckheere, Raymond and Poerschke, Axel and Hacker, Bradley R. and Dong, Shuwen and Zhang, Yueqiao. (2006) The Sino-Korean-Yangtze suture, the Huwan detachment, and the Paleozoic-Tertiary exhumation of (ultra) high-pressure rocks along the Tongbai-Xinxian-Dabie Mountains. In: Ultrahigh-pressure metamorphism: Deep continental subduction. pp. 45-75.

Petersen, Sven and Herzig, Peter M. and Kuhn, Thomas and Franz, Leander and Hannington, Mark D. and Monecke, Thomas and Gemmell, J. Bruce. (2005) Shallow drilling of seafloor hydrothermal systems using the BGS rockdrill: Conical seamount (New Ireland fore-arc) and PACMANUS (Eastern Manus Basin), Papua New Guinea. Marine Georesources & Geotechnology, 23 (3). pp. 175-193.

Franz, L. and Okrusch, M. and Seidel, E. and Kreuzer, H.. (2005) Polymetamorphic evolution of pre-Alpidic basement relics in the external Hellenides, Greece. Neues Jahrbuch für Mineralogie-Abhandlungen, 181 (2). pp. 147-172.

Bröcker, Michael and Franz, Leander. (2005) The base of the Cycladic blueschist unit on Tinos Island (Greece) re-visited: Field relationships, phengite chemistry and Rb-Sr geochronology. Neues Jahrbuch für Mineralogie-Abhandlungen, 181 (1). pp. 81-93.

Fretzdorff, Susanne and Worthington, Tim J. and Haase, Karsten M. and Hékinian, Roger and Franz, Leander and Keller, Randall A. and Stoffers, Peter. (2004) Magmatism in the Bransfield Basin: Rifting of the South Shetland arc? Journal of Geophysical Research: Solid Earth , 109 (B12). B12208.

Liati, Anthi and Franz, Leander and Gebauer, Dieter and Fanning, C. Mark. (2004) The timing of mantle and crustal events in South Namibia, as defined by SHRIMP-dating of zircon domains from a garnet peridotite xenolith of the Gibeon Kimberlite Province. Journal of African Earth Sciences, 39 (3-5). pp. 147-157.

Renno, A. D. and Franz, L. and Witzke, T. and Herzig, P. M.. (2004) The coexistence of melts of hydrous copper chloride, sulfide and silicate compositions in a magnesiohastingsite cumulate, Tubaf Seamount, Papua New Guinea. The Canadian Mineralogist, 42 (1). pp. 1-16.

Müller, D. and Franz, L. and Petersen, S. and Herzig, P. M. and Hannington, M. D.. (2003) Comparison between magmatic activity and gold mineralization at Conical Seamount and Lihir Island, Papua New Guinea. Mineralogy and petrology, 79 (3-4). pp. 259-283.

Schmid, R. and Wilke, M. and Oberhänsli, R. and Janssens, K. and Falkenberg, G. and Franz, L. and Gaab, A.. (2003) Micro-XANES determination of ferric iron and its application in thermobarometry. Lithos, 70 (3-4). pp. 381-392.

Schmid, R. and Romer, R. L. and Franz, L. and Oberhänsli, R. and Martinotti, G.. (2003) Basement-cover sequences within the UHP unit of the Dabie Shan. Journal of Metamorphic Geology, 21 (6). pp. 531-538.

Grimmer, Jens C. and Ratschbacher, Lothar and McWilliams, Michael and Franz, Leander and Gaitzsch, Ines and Tichomirowa, Marion and Hacker, Bradley R. and Zhang, Yueqiao. (2003) When did the ultrahigh-pressure rocks reach the surface? A Pb-207/Pb-206 zircon, Ar-40/Ar-39 white mica, Si-in-white mica, single-grain provenance study of Dabie Shan synorogenic foreland sediments. Chemical Geology, 197 (1-4). pp. 87-110.

Franz, Leander and Becker, Klaus-Peter and Kramer, Wolfgang and Herzig, Peter M.. (2002) Metasomatic mantle xenoliths from the Bismarck microplate (Papua New Guinea) - Thermal evolution, geochemistry and extent of slab-induced metasomatism. Journal of Petrology, 43 (2). pp. 315-343.

Franz, L. and Romer, R. L. and Klemd, R. and Schmid, R. and Oberhänsli, R. and Wagner, T. and Shuwen, D.. (2001) Eclogite-facies quartz veins within metabasites of the Dabie Shan (eastern China): pressure-temperature-time-deformation path, composition of the fluid phase and fluid flow during exhumation of high-pressure rocks. Contributions to Mineralogy and Petrology, 141 (3). pp. 322-346.

Müller, Daniel and Franz, Leander and Herzig, Peter M. and Hunt, Steve. (2001) Potassic igneous rocks from the vicinity of epithermal gold mineralization, Lihir Island, Papua New Guinea. Lithos, 57 (2-3). pp. 163-186.

Schmid, R. and Ryberg, T. and Ratschbacher, L. and Schulze, A. and Franz, L. and Oberhänsli, R. and Dong, S.. (2001) Crustal structure of the eastern Dabie Shan interpreted from deep reflection and shallow tomographic data. Tectonophysics, 333 (3-4). pp. 347-359.

Franz, Leander and Wirth, Richard. (2000) Spinel inclusions in olivine of peridotite xenoliths from TUBAF seamount (Bismarck Archipelago/Papua New Guinea): evidence for the thermal and tectonic evolution of the oceanic lithosphere. Contributions to Mineralogy and Petrology, 140 (3). pp. 283-295.

Schmid, Robert and Franz, Leander and Oberhansli, Roland and Dong, Shuwen. (2000) High-Si phengite, mineral chemistry and P-T evolution of ultra-high-pressure eclogites and calc-silicates from the Dabie Shan, eastern China. Geological Journal, 35 (3-4). pp. 185-207.

Bröcker, M. and Franz, L.. (2000) The contact aureole on Tinos (Cyclades, Greece): tourmaline-biotite geothermometry and Rb-Sr geochronology. Mineralogy and Petrology, 70 (3-4). pp. 257-283.

Handy, M. R. and Franz, L. and Heller, F. and Janott, B. and Zurbriggen, R.. (1999) Multistage accretion and exhumation of the continental crust (Ivrea crustal section, Italy and Switzerland). Tectonics, 18 (6). pp. 1154-1177.

Kurszlaukis, S. and Franz, L. and Brey, G. P.. (1999) The Blue Hills Intrusive Complex in southern Namibia - relationships between carbonatites and monticellite picrites. Chemical Geology, 160 (1-2). pp. 1-18.

Franz, L. and Romer, R. L. and Dingeldey, D. P.. (1999) Diachronous Pan-African granulite-facies metamorphism (650 Ma and 550 Ma) in the Kaoko belt, NW Namibia. European Journal of Mineralogy, 11 (1). pp. 167-180.

Kurszlaukis, S. and Franz, L. and Lorenz, V.. (1998) On the volcanology of the Gibeon Kimberlite Field, Namibia. Journal of volcanology and geothermal research, 84 (3-4). pp. 257-272.

Franz, L. and Harlov, D. E.. (1998) High-grade K-feldspar veining in granulites from the Ivrea-Verbano Zone, northern Italy: Fluid flow in the lower crust and implications for granulite facies genesis. The Journal of Geology, 106 (4). pp. 455-472.

Franz, L. and Seifert, W.. (1998) Basement studies in a continental suture zone - Xenoliths from the mid-German crystalline rise (Rhon area, mid-European Variscides). Neues Jahrbuch für Mineralogie-Abhandlungen, 173 (3). pp. 263-303.

Brocker, Michael and Franz, Leander. (1998) Rb-Sr isotope studies on Tinos Island (Cyclades, Greece): additional time constraints for metamorphism, extent of infiltration-controlled overprinting and deformational activity. Geological magazine, 135 (3). pp. 369-382.

Romer, R. L. and Franz, L.. (1998) Ordovician barrow-type metamorphism in the Strona-Ceneri Zone (northern Italy) dated by U-Pb on staurolite. Schweizerische Mineralogische und Petrographische Mitteilungen, 78 (3). pp. 383-395.

Franz, Leander and Wirth, Richard. (1997) Thin intergranular melt films and melt pockets in spinel peridotite xenoliths from the Rhön area (Germany): early stage of melt generation by grain boundary melting. Contributions to Mineralogy and Petrology, 129 (4). pp. 268-283.

Franz, L. and Schuster, A. K. and Strauss, K. W.. (1997) Basement evolution in the rhenohercynian segment: Discontinuous exhumation history of the Eckergneis complex (Harz mountains, Germany). Chemie der Erde-Geochemistry, 57 (2-3). pp. 105-135.

Henk, A. and Franz, L. and Teufel, S. and Oncken, O.. (1997) Magmatic underplating, extension, and crustal reequilibration: Insights from a cross-section through the Ivrea Zone and Strona-Ceneri Zone, northern Italy. The Journal of Geology, 105 (3). pp. 367-377.

Kurszlaukis, S. and Franz, L.. (1997) Phase petrology, geochemistry and evolution of the ultrabasic-carbonatitic Blue Hills complex (Southern Namibia). Geologija i Geofizika, 38 (1). pp. 51-66.

Franz, L. and Brey, G. P. and Okrusch, M.. (1997) Metasomatic reequilibration of mantle xenoliths from the Gibeon Kimberlite Province (Namibia). Geologija i Geofizika, 38 (1). pp. 245-259.

Franz, L. and Seifert, W. and Kramer, W.. (1997) Thermal evolution of the mantle underneath the Mid-German Crystalline Rise: evidence from mantle xenoliths from the Rhone area (Central Germany). Mineralogy and petrology, 61 (1-4). pp. 1-25.

Zurbriggen, R. and Franz, L. and Handy, M. R.. (1997) Pre-Variscan deformation, metamorphism and magmatism in the Strona-Ceneri zone (southern Alps of northern Italy and southern Switzerland). Schweizerische Mineralogische und Petrographische Mitteilungen, 77 (3). pp. 361-380.

Franz, Leander and Brey, Gerhard P. and Okrusch, Martin. (1996) Steady state geotherm, thermal disturbances, and tectonic development of the lower lithosphere underneath the Gibeon Kimberlite Province, Namibia. Contributions to Mineralogy and Petrology, 126 (1-2). pp. 181-198.

Franz, L. and Brey, G. P. and Okrusch, M.. (1996) Reequilibration of ultramafic xenoliths from Namibia by metasomatic processes at the mantle boundary. The Journal of Geology, 104 (5). pp. 599-615.

Brocker, M. and Franz, L.. (1994) The Contact Aureole nn Tinos (Cyclades, Greece). 1. Field Relationships, Petrography and P-T Conditions. Chemie der Erde-Geochemistry, 54 (4). pp. 262-280.

Dingeldey, D. P. and Dürr, S. B. and Charlesworth, E. G. and Franz, L. and Okrusch, M. and Stanistreet, I. G.. (1994) A geotraverse through the northern coastal branch of the Damaran orogen west of Sesfontein, Namibia. Journal of African Earth Sciences, 19 (4). pp. 315-329.

Kleinschrot, D. and Klemd, R. and Brocker, M. and Okrusch, M. and Franz, L. and Schmidt, K.. (1994) Protores and Country Rocks of the Nsuta Manganese Deposit (Ghana). Neues Jahrbuch für Mineralogie-Abhandlungen, 168 (1). pp. 67-108.

Heinrich, W. and Franz, L. and Hein, U. and Herms, P.. (1994) Microthermometry of Synthetic Fluid Inclusions - An Interlaboratory Comparison Using Different Heating Freezing Stages. Neues Jahrbuch für Mineralogie-Abhandlungen (7). pp. 295-313.

Franz, L. and Okrusch, M. and Brocker, M.. (1993) Polymetamorphic Evolution of Pre-Alpidic Basement Rocks on the Island of Sikinos (Cyclades, Greece). Neues Jahrbuch für Mineralogie-Abhandlungen (4). pp. 145-162.

Franz, L. and Okrusch, M.. (1992) Aragonite-Bearing Blueschists on Arki Island, Dodecanese, Greece. European Journal of Mineralogy, 4 (3). pp. 527-537.