Bereichsbild
Contact

Heidelberg University
Institute of Earth Sciences

Im Neuenheimer Feld 236
69120 Heidelberg

Phone: +49 6221 54-8206
Fax: +49 6221 54-4805

 

Isotope Geology and Petrology


Thomas Ludwig
 

Address:

Institute of Earth Sciences

Ruprecht-Karls-Universität Heidelberg

Im Neuenheimer Feld 236

D-69120 Heidelberg

Room: 507
Phone:
Fax:
+49 6221 54-4678
+49 6221 54-4811
E-mail: thomas.ludwig@geow.uni-heidelberg.de


 


 

Academic career and professional employment

Since 05/1994 Research Scientist, Institute of Earth Sciences, Heidelberg University

 

 

Current teaching

 

  • Laboratory methods in Earth Sciences
     
  • Secondary ion mass spectrometry

 

 

Publications

 

2014:

 

Bast R, Scherer EE, Mezger K, Austrheim H, Ludwig T, Marschall HR, Putnis A, Löwen K (2014) Boron isotopes in tourmaline as a tracer of metasomatic processes in the Bamble sector of Southern Norway. Contributions to Mineralogy and Petrology 168 (4): 1069

 

Martin-Garcia R, Alonso-Zarza AM, Martin-Perez A , Schröder-Ritzrau A, Ludwig T (2014) Relationships between colour and diagenesis in the aragonite-calcite speleothems in Basajaun Etxea cave, Spain. Sedimentary Geology 312: 63–75


 

2013:

 

Cabato J, Altherr R, Ludwig T, Meyer HP (2013) Li, Be, B concentrations and delta Li-7 values in plagioclase phenocrysts of dacites from Nea Kameni (Santorini, Greece). Contributions to Mineralogy and Petrology 165 (6): 1135–1154

 

Marschall HR, Dohmen R, Ludwig T (2013) Diffusion-induced fractionation of niobium and tantalum during continental crust formation. Earth and Planetary Science Letters 375: 361–371


 

2012:

 

Ertl A, Giester G, Ludwig T, Meyer HP, Rossman GR (2012) Synthetic B-rich olenite: Correlations of single-crystal structural data. American Mineralogist, 97 (10): 1591–1597

 

Ertl A, Schuster R, Hughes JM, Ludwig T, Meyer HP, Finger F, Dyar MD, Ruschel K, Rossman GR, Klotzli U, Brandstatter F, Lengauer CL, Tillmanns E (2012) Li-bearing tourmalines in Variscan granitic pegmatites from the Moldanubian nappes, Lower Austria. European Journal of Mineralogy 24 (4): 695–715

 

Pabst S, Zack T, Savov IP, Ludwig T, Rost D, Tonarini S, Vicenzi EP (2012) The fate of subducted oceanic slabs in the shallow mantle: insights from boron isotopes and light element composition of metasomatized blueschists from the Mariana forearc. Lithos 132–133: 162–179


 

2011:

 

Hezel D, Kalt A, Marschall HR, Ludwig T, Meyer H-P (2011) Major element and Li, Be compositional evolution of tourmaline in an S-type granite-pegmatite system and its country rocks: an example from the island of Ikaria (Aegean Sea, Greece). Canadian Mineralogist 49: 321–340

 

Kaliwoda M, Marschall HR, Marks MA, Ludwig T, Altherr R, Markl G (2011) Boron and boron isotope systematics in the peralkaline Ilímaussaq intrusion (South Greenland) and its granitic country rocks: interplay between magmatic and hydrothermal processes. Lithos 125: 51–64

 

Klemme S, Marschall HR, Jacob D, Prowatke S, Ludwig T (2011) Trace element partitioning and boron isotope fractionation between mica and tourmaline. Canadian Mineralogist 49: 165–176

 

Ludwig T, Marschall HR, Pogge von Strandmann PAE, Shabaga BM, Fayek M, Hawthorne FC (2011) A secondary ion mass spectrometry (SIMS) re-evaluation of B and Li isotopic compositions of Cu-bearing elbaite from three global localities Mineralogical Magazine 75: 2485–2494

 

Marocchi M, Marschall HR, Konzett J, Tropper P, Ludwig T, Mair V, Bargossi GM (2011) Metasomatic tourmaline in hybrid contact bands between gneiss and peridotite in the Ulten Zone (Eastern Italian Alps): geochemistry and boron isotopic composition determined by SIMS. Canadian Mineralogist 49: 245–261

 

Pabst S, Savov I, Ludwig T, Rost D, Vicenzi E, Zack T (2011) Evidence for boron incorporation into the serpentine crystal structure. American Mineralogist 96: 1112–1119

 

Stähle V, Altherr R, Nasdala L, Ludwig T (2011) Ca-rich majorite derived from high-temperature melt and thermally stressed hornblende in shock veins of crustal rocks from the Ries impact crater (Germany). Contributions to Mineralogy and Petrology 161: 275–291

 

Van Lichtervelde M, Holtz F, Dziony W, Ludwig T, Meyer H-P (2011) Incorporation mechanisms of Ta and Nb into zircon and implications for pegmatitic systems. American Mineralogist 96:1079–1089

 

Vils F, Müntener O, Kalt A, Ludwig T (2011) Implications of the serpentine phase transition on the behaviour of beryllium and lithium-boron of subducted ultramafic rocks. Geochimica et Cosmochimica Acta 75: 1249–1271


 

2010:

 

Ertl A, Rossman GR, Hughes JM, London D, Wang Y, O'Leary JA, Dyar MD, Prowatke S, Ludwig T, Tillmanns E (2010) Tourmaline of the elbaite-schorl series from the Himalaya Mine, Mesa Grande, California: A detailed investigation. American Mineralogist 95, 24–40


 

2009:

 

Ertl A, Kolitsch U, Meyer H-P, Ludwig T, Lengauer CL, Nasdala L, Tillmanns E (2009) Substitution mechanism in tourmalines of the “fluor-elbaite“–rossmanite series from Wolkenburg, Saxony, Germany. Neues Jahrbuch für Mineralogie – Abhandlungen 186: 51-61

 

Hanrahan M, Brey G, Woodland A, Seitz H-M, Ludwig T (2009) Li as a barometer for bimineralic eclogites: Experiments in natural systems. Lithos 112: 992–1001

 

Luvizotto GL, Zack T, Meyer H-P, Ludwig T, Triebold S, Kronz A, Münker C, Stockli DF, Prowatke S, Klemme S, Jacob DE, von Eynatten H (2009) Rutile crystals as potential trace element and isotope mineral standards for microanalysis. Chemical Geology 261: 346–369

 

Marschall HR, Korsakov AV, Luvizotto GL, Nasdala L, Ludwig T (2009) On the occurrence and boron isotope composition of tourmaline in (ultra)high-pressure metamorphic rocks. Journal of the Geological Society London 166: 811–823

 

Marschall HR, Meyer C, Wunder B, Ludwig T, Heinrich W (2009) Experimental boron isotope fractionation between tourmaline and fluid: confirmation from in situ analyses by secondary ion mass spectrometry and from Rayleigh fractionation modelling. Contributions to Mineralogy and Petrology 158: 675–681


 

2008:

 

Kaliwoda M, Ludwig T, Altherr R (2008) A new SIMS study of Li, Be, B and δ7Li in mantle xenoliths from Harrat Uwayrid (Saudi Arabia). Lithos 106: 261–279

 

Marks MAW, Rudnick RL, Ludwig T, Marschall H, Zack T, Halama R, McDonough WF, Rost D, Wenzel T, Vicenzi EP, Savov IP, Altherr R, Markl G (2008) Sodic pyroxene and sodic amphibole as potential reference materials for in situ Lithium isotope determinations by SIMS. Geostandards and Geoanalytical Research 32: 295–310

 

Marschall HR, Altherr R, Kalt A, Ludwig T (2008) Detrital, metamorphic and metasomatic tourmaline in high-pressure metasediments from Syros (Greece): intra-grain boron isotope patterns determined by secondary-ion mass spectrometry. Contributions to Mineralogy and Petrology 155: 703–717

 

Rosner M, Wiedenbeck M, Ludwig T (2008) Composition-induced variations in SIMS instrumental mass fractionation during boron isotope ratio measurements of silicate glasses. Geostandards and Geoanalytical Research 32: 27–38

 

Vils F, Pelletier L, Kalt A, Müntener O, Ludwig T (2008) The lithium, boron and beryllium content of serpentinized peridotites from ODP Leg 209 (Sites 1272A and 1274A): Implications for lithium and boron budgets of oceanic lithosphere. Geochimica et Cosmochimica Acta 72: 5475–5504


 

2007:

 

Ertl A, Hughes JM, Prowatke S, Ludwig T, Brandstätter F, Körner W, Dyar MD (2007) Tetrahedrally coordinated boron in Li-bearing olenite from „mushroom“ tourmaline from Momeik, Myanmar. The Canadian Mineralogist 45: 891–899

 

Kaeser B, Kalt A, Ludwig T (2007) Li, Be, and B abundances in minerals of peridotite xenoliths from Marsabit (Kenya): Disequilibrium processes and implications for subduction zone signatures. Geochemistry Geophysics Geosystems 8: Q09013, doi:10.1029/2006GC001555

 

Ludwig T, Stalder R (2007) A new method to eliminate the influence of in situ contamination in SIMS analysis of hydrogen. Journal of Analytical Atomic Spectrometry 22: 1415–1419

 

Stalder R, Ludwig T (2007) OH incorporation in synthetic diopside. European Journal of Mineralogy 19: 373–380

 

Ertl A, Hughes JM, Prowatke S, Ludwig T, Prasad PSR, Brandstätter F, Körner W, Schuster R, Pertlik F, Marschall HR (2006) Tetrahedrally-coordinated boron in tourmalines from the liddicoatite-elbaite series from Madagascar: structure, chemistry and infrared spectroscopic studies. American Mineralogist 91: 1847–1856


 

2006:

 

Ertl A, Rossman GR, Hughes JM, Wang Y, O’Leary J, Dyar MD, Prowatke S, Ludwig T (2006) Elbaite from the Himalaya Mine, Mesa Grande, California. Gems & Gemology 42: 96

 

Jochum KP and 49 others (2006) MPI-DING reference glasses for in situ microanalysis: new reference values for element concentrations and isotope ratios. Geochemistry, Geophysics, Geosystems 7: Q02008, doi:10.1029/2005GC001060

 

Marschall HR, Altherr R, Ludwig T, Kalt A, Gméling K, Kasztovszky Z (2006) Partitioning and budget of Li, Be and B in high-pressure metamorphic rocks. Geochimica et Cosmochimica Acta 70: 4750–4769

 

Marschall HR, Ludwig T (2006) Re-examination of the boron isotopic composition of tourmaline from the Lavicky granite, Czech Republic, by secondary ion mass spectrometry: back to normal. Critical comment on "Chemical and boron isotopic compositions of tourmaline from the Lavicky leucogranite, Czech Republic" by S.-Y. Jiang et al., Geochemical Journal, 37, 545–556, 2003. Geochemical Journal 40: 631-638

 

Marschall HR, Ludwig T, Altherr R, Kalt A, Tonarini S (2006) Syros metamorphic tourmaline: Evidence for very high-δ11B fluids in subduction zones. Journal of Petrology 47: 1915–1942


 

2005:

 

Ertl A, Rossman GR, Hughes JM, Prowatke S, Ludwig T (2005) Mn-bearing „oxy-rossmanite“ with tetrahedrally-coordinated Al and B from Austria: structure, chemistry, and infrared and optical spectroscopic study. American Mineralogist 90: 481–487

 

Stalder R, Klemme S, Ludwig T, Skogby H (2005) Hydrogen incorporation in orthopyroxene: interaction of different trivalent cations. Contributions to Mineralogy and Petrology 150: 473–85

 

Tappert R, Stachel T, Harris JW, Muehlenbachs K, Ludwig T, Brey GP (2005) Diamonds from Jagersfontein (South Africa): messengers from the sublithospheric mantle. Contributions to Mineralogy and Petrology 150: 505–522

 

Tappert R, Stachel T, Harris JW, Muehlenbachs K, Ludwig T, Brey GP (2005) Subducting oceanic crust: The source of deep diamonds. Geology 33: 565–568


 

2004:

 

Altherr R, Topuz G, Marschall H, Zack T, Ludwig T (2004) Evolution of a tourmaline-bearing lawsonite eclogite form the Elekdag area (Central Pontides, N Turkey): evidence for infiltration of slab-derived B-rich fluids during exhumation. Contributions to Mineralogy and Petrology 148: 409–425

 

Ertl A, Pertlik F, Dyar MD, Prowatke S, Hughes JM, Ludwig T, Bernhardt H-J (2004) Fe-rich olenite with tetrahedrally coordinated Fe3+ from Eibenstein, Austria: Structural, chemical and Mössbauer data. The Canadian Mineralogist 42: 1057–1063

 

Ertl A, Schuster R, Prowatke S, Bandstätter F, Ludwig T, Bernhardt H-J, Koller F, Hughes JM (2004) Mn-rich tourmaline and fluoroapatite in a Variscan pegmatite from Eibenstein an der Thaya, Bohemian massif, Lower Austria. European Journal of Mineralogy 16: 551–560

 

Marschall HR, Ludwig T (2004) The low-boron contest: minimising surface contamination and analysing boron concentrations at the ng/g-level by secondary ion mass spectrometry. Mineralogy and Petrology 81: 265–278

 

Paquin J, Altherr R, Ludwig T (2004) Li-Be-B systematics in the ultrahigh-pressure garnet peridotite from Alpe Arami (Central Swiss Alps): implications for slab-to-mantle wedge transfer. Earth and Planetary Science Letters 218: 507–519


 

2002:

 

Woodland AB, Seitz H-M, Altherr R, Marschall H, Olker B, Ludwig T (2002) Li abundances in eclogite minerals: a clue to a crustal or mantle origin? Contributions to Mineralogy and Petrology 143: 587–601


 

2001:

 

Kalt A, Schreyer W, Ludwig T, Prowatke S, Bernhardt H-J, Ertl A (2001) Complete solid solution between magnesian schorl and lithian excess-boron olenite in a pegmatite from the Koralpe (eastern Alps, Austria). European Journal of Mineralogy 13: 1191–1205


 

1999:

 

Seitz H-M, Altherr R, Ludwig T (1999) Partitioning of transition elements between orthopyroxene and clinopyroxene in peridotitic and websteritic xenoliths: new empirical geothermometers. Geochimica et Cosmochimica Acta 63: 3967-3982


 

1998:

 

Kalt A, Altherr R, Ludwig T (1998) Contact metamorphism in pelitic rocks on the island of Kos (Greece, Eastern Aegean Sea): a test for the Na-in-cordierite thermometer. Journal of Petrology 39: 663–688


 

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Latest Revision: 2015-12-04
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