Dr. Julia Walter-Roszjár

Position:

Wissenschaftliche Mitarbeiterin

Aufgabenbereich:

- Forschung an Meteoriten

- Klassifikation von Meteoriten
- Spezialführungen durch die Meteoritensammlung
 

Kontakt:

Telefon: +43 1 52177-393
Fax: +43 1 52177-264

2010-2012: Wissenschaftliche Mitarbeiterin im DFG Schwerpunktprogramm SPP 1385: The first 10 Million Years of the Solar System - a Planetary Materials Approach, Teilprojekt: Die frühe Entwicklung der Meteoritenmutterkörper - Hf-W und U-Pb Altersbestimmungen an Zirkonen, Baddeleyiten und Phosphaten. Förderung: BI 344/9-1/2.

Akademische Ausbildung

  • 2009 - 2012: Promotion am Institut für Planetologie, Westfälische Wilhelms-Universität Münster

      Promotionsthema: Genesis of igneous meteorites: Implications for the evolution of differentiated bodies in the Solar System,

      Betreuer: Prof. Dr. A. Bischoff, Prof. K. Mezger PhD

  • 2008: Summer school/ Misasa International Students Internship Program, Institute for the Study of the Earth’s Interior, Okayama University, Japan Projekt: An application of comprehensive geochemical analysis for carbonaceous-chondrite constituents

  • 2007 - 2009: Master of Science (M.Sc.) Geowissenschaften (mit Auszeichnung), Westfälische Wilhelms-Universität Münster

      Thema Masterarbeit: Zirconium-bearing phases in meteorites,

      Betreuer: Prof. Dr. A. Bischoff, Prof. K. Mezger PhD

  • 2003 - 2007: Bachelor of Science (B.Sc.) Geowissenschaften, Westfälische Wilhelms-Universität Münster

      Thema Bachelorarbeit: Entwicklung eines Monazit-Standards zur Geochronologie,

      Betreuer: Prof. K. Mezger PhD, Dr. J. Berndt

  • 2003: Abitur Heinrich-Hertz-Gymnasium, Erfurt

 

Beruflicher Werdegang

  • Seit 2014: Wissenschaftliche Mitarbeiterin des NHM Wien, Mineralogisch-Petrographische Abteilung

  • 2012 – 2014: PostDoc, Friedrich Schiller University Jena, Institut für Geowissenschaften, Analytische Mineralogie der Mikro- und Nanostrukturen

  • 2010 - 2012: Wissenschaftliche Mitarbeiterin im DFG Schwerpunktprogramm (SPP) 1385: The First 10 Million Years of the Solar System - a Planetary Materials Approach, Teilprojekt BI 344/9-1/2: Die frühe Entwicklung der Meteoritenmutterkörper - Hf-W und U-Pb Altersbestimmungen an Zirkonen, Baddeleyiten und Phosphaten.

  • 2007 - 2010: Wissenschaftliche Mitarbeiterin, Institut für Planetologie, WWU Münster

  • 2007: Studentische Hilfskraft, Institut für Planetologie, WWU Münster

  • 2006: 6-wöchiges Praktikum, Geoforschungszentrum (GFZ) Potsdam, Projekt: Die Stabilität von Talk (Experimentelle Studien)

 

Auszeichnungen

  • 2015: SYNTHESYS Grant SE-TAF-6116 “Extraterrestrial phosphates and their role as a sink for volatile elements and halogen fractionation processes in early-formed Solar System materials” am Swedish Museum of Natural History (NRM) Stockholm, Schweden

  • 2015: Travel Grant, Invited contribution, Misasa V International Symposium “Comprehensive Exploration of the Solar System – Sample return and analyses”, Februar 24-26, Institute for Study of the Earth’s Interior, Okayama University Misasa, Japan

  • 2012: Travel Grant, Invited contribution, Misasa IV International Symposium “Solar System Exploration and new Geosciences – Perspective for the next decade”, March 6-8, Institute for Study of the Earth’s Interior, Okayama University Misasa, Japan

  • 2012: Publikationspreis der Deutschen Forschungsgemeinschaft (DFG) im Schwerpunktprogramm (SPP) 1385: The First 10 Million Years of the Solar System - a Planetary Materials Approach für die beste Publikation verfasst von einem Studenten

  • 2009: Absolventenpreis des Fachbereichs Geowissenschaften für die beste Abschlussarbeit in den M.Sc. Geowissenschaften, Fachbereich Geowissenschaften der WWU Münster

  • 2008: Stipendium, 6-wöchiges Student Internship Program am ISEI (Insitute for the Study of the Earth`s Interior), Okayama University, Misasa, Japan (Projekt: An application of comprehensive geochemical analysis for carbonaceous-chondrite constituents)

Exkursion zum Impaktkrater: Nördlinger Ries, Deutschland (2013)
Publications (peer reviewed journal articles)

 

Roszjar J., Moser D. E., Hyde B. C., Chanmuang C., Tait K. T. Comparing the primary chemical and structural micro-textures of early Solar System igneous zircon from asteroids, Mars and the Earth, (Wiley) AGU Geophysical Monograph Series Microstructural Geochronology; lattice to atom-scale records of planetary history, Eds: D. Moser, F. Corfu, S. Reddy, J. Darling, K. Tait. (in review).

 

Sarafian A., John T., Roszjar J., Whitehouse M. J. (2016) Chlorine and hydrogen degassing in Vesta's magma ocean. Earth and Planetary Science Letters 459:311-319.

 

Roszjar J., Whitehouse M. J., Srinivasan G., Mezger K., Scherer E. E., Van Orman J. A., Bischoff A. (2016) Prolonged magmatism on 4 Vesta inferred from Hf-W analyses of eucrite zircon. Earth and Planetary Science Letters 452:216-226.

 

Roszjar J., Whitehouse M.J., Bischoff A. (2014) Meteoritic zircon – Occurrence and chemical characteristics. Chemie der Erde – Geochemistry 74:453-469.

 

Llorca J., Roszjar J., Cartwright J. A., Bischoff A., Ott U., Pack A., Merchel S., Rugel G., Femiani L., Ludwig P., Casado J. V., Allepuz D. (2013) The Ksar Ghilane 002 shergottite - The 100th registered Martian meteorite fragment. Meteoritics and Planetary Science 48:493-513.

 

Roszjar J., Metzler K., Bischoff A., Barrat J.-A., Geisler T., Greenwood R. C., Franchi I. A., Klemme S. (2011) Thermal history of Northwest Africa (NWA) 5073 - a coarse-grained Stannern-trend eucrite containing cm-sized pyroxenes and large zircon grains. Meteoritics and Planetary Science 46:1754-1773.

 

Bischoff A., Vogel N., Roszjar J. (2011) The Rumuruti chondrite group - Invited review. Chemie der Erde - Geochemistry 71:101-133.

 

Wurm G., Teiser J., Bischoff A., Haack H., Roszjar J. (2010) Experiments on the Photophoretic Motion of Chondrules and Dust Aggregates - Indications for the Transport of Matter in Protoplanetary Disks. Icarus 208:482-491.

 

Llorca J., Casanova I., Trigo-Rodriguez, J. M. Madiedo J. M., Roszjar J., Bischoff A., Ott U., Franchi I., Greenwood R., Laubenstein M. (2009) The Puerto Lápice eucrite. Meteoritics and Planetary Science 44:159-174.

 

 

Invited Contributions


Roszjar, J., John, T., Whitehouse, M.J. (2015) Halogens from the early Solar System – Insights from meteoritic phosphates, MISASA V International Symposium, Comprehensive Exploration of the Solar System – Sample return and analysis, Abstract Volume, Misasa, Japan, held 06-08 March 2015.
 
Roszjar, J., Whitehouse, M.J., Bischoff A. (2015) Meteoritic zircon- rare and tiny, but of high relevance, MISASA V International Symposium, Comprehensive Exploration of the Solar System – Sample return and analysis, Abstract Volume, Misasa, Japan, held 06-08 March 2015.
 
Ferrière, L., Brandstätter, F., Roszjar, J. (2015) Big Bang at the NHM Vienna meteorite collection, MISASA V International Symposium, Comprehensive Exploration of the Solar System – Sample return and analysis, Abstract Volume, Misasa, Japan, held 06-08 March 2015.
 

Roszjar, J., Bischoff A., Mezger, K. (2012) New crystallization ages and a complex thermal history of the eucrite parent body inferred from eucrite zircon. MISASA IV International Symposium, Solar System Exploration and New Geosciences - Perspective of the next decade, Abstract Volume, Misasa, Japan, held 24-26 February 2012.

 

 

Publications (conference abstracts)


Roszjar J., Moser D. E., Hyde, B. C., Chanmuang, C., Tait, K., Nasdala L. (2016) Comparison of chemical zoning of eucrite and Martian micro-zircon Meteoritics & Planetary Science 51, #6306.
 
Ward D., Bischoff A., Roszjar J., Whitehouse M. J. (2016) Trace element inventory of meteoritic Ca-phosphates. Lunar Planet. Sci. XLVII, #1456, Lunar and Planetary Institute, Houston.
 
Ward D., Bischoff A., Roszjar J., Berndt J., Whitehouse M. J. (2016) Trace element abundances in extraterrestrial apatite and merrillite. Meteoritics & Planetary Science 51, #6306.
 
Ward D., Bischoff A., Roszjar J., Whitehouse M.J. (2015) REE content of Ca-phosphates. Meteoritics and Planetary Science 50, #5056.
 
Ward D., Bischoff A., Roszjar J., Whitehouse M.J. (2015) REE signatures of meteoritic Ca-phosphates. Paneth Kolloquium, Nördlingen, Germany, #0049.
 
Roszjar J., John T., Kusebauch, C., Whitehouse, M.J. (2015) Applying phosphate halogen compositions to trace magmatic or metamorphic fluids in inner Solar System materials. Geophys. Res. Abstr. 17: EGU2015-14888.

Ward D., Roszjar J., Bischoff A. (2014) Distribution and composition of accessory Ca-phosphates in meteorites. 5th DFG Special Priority Program 1385 meeting, 02-03 December, Heidelberg, Germany.

 

Ward D., Roszjar J., Bischoff A., Leschner L. (2014) Accessory Ca-phosphates in meteorites – distribution and composition. 92nd Annual Meeting of the German Mineralogical Society, 21-24 September, Jena, Germany, DMG-Meetings abstract volume, MET-P01.

 

Roszjar, J., Whitehouse, M.J., Bischoff, A. (2014) Rare earth element signatures of meteoritic zircon. 92nd Annual Meeting of the German Mineralogical Society, 21-24 September, Jena, Germany, DMG-Meetings abstract volume, MET-T02.

 

Roszjar, J., John, T., Whitehouse, M.J., Bischoff, A., K., Terada. (2014) The halogen signature of young phosphates in the Ksar Ghilane 002 Martian rock. 77th Annual Meteoritical Society Meeting, #5215.

 

Ward D., Roszjar J., Bischoff A., John T., Whitehouse M.J., Mezger K. (2013) Accessory Ca-phosphates: major hosts for halogens and REE in meteorites. Joint meeting Paneth Kolloquium and DFG SPP 1385 “The first 10 million years of the Solar System”, 21-23 October, Nördlingen, Germany, #71.

 

Roszjar J., Whitehouse M.J., Mezger K., Bischoff A., Srinivasan G. (2013) Hf-W ages and REE systematics of eucrite zircon. Joint meeting Paneth Kolloquium and DFG SPP 1385 “The first 10 million years of the Solar System”, 21-23 October, Nördlingen, Germany, #69.

 

Roszjar J., John T., Whitehouse, M., Bischoff A., Layne G. (2013) Halogens in the Early Solar System Inferred from Meteoritic Phosphates. Mineralogical Magazine 77:2086.

 

Roszjar J., Whitehouse M., Srinivasan G., Mezger K., Bischoff A. (2012) Evidence for prolonged magmatism on Vesta inferred from eucrite zircon grains. Meteoritics and Planetary Science 47:A332.

 

Cartwright J. A., Ott U., Roszjar J., Barrat J. A., Bischoff A. (2012) Noble Gases and CRE ages of eucrites NWA 5073, NWA 2550 and HaH 286. Meteoritics and Planetary Science 47:A95.

 

Roszjar J., Srinivasan G., Whitehouse M., Bischoff A., Mezger K. (2012) Hf-W analyses of eucrite zircon: New crystallization timescales for the eucrite parent body. 43rd Lunar and Planetary Science Conference, Houston, USA, held March 23-27, 2009, #1774.

 

Roszjar J., Bischoff A., Llorca J., Pack A. (2012) Ksar Ghilane 002 (KG002) - A new shergottite: Discovery, Mineralogy, Chemistry and Oxygen Isotopes. 43rd Lunar and Planetary Science Conference, Houston, USA, held March 19-23, 2012, #1780.

 

Roszjar J., Bischoff A., Mezger K., Scherer E. E., Whitehouse M., Srinivasan G., Geisler T. (2011) Constraints on the early evolution of meteorite parent bodies by the analyses of zircon, baddeleyite, and phosphate grains. 2nd DFG Special Priority Program 1385 meeting, 17-19 October, Mainz, Germany.

 

Roszjar J., Scherer E. E., Mezger K., Bischoff A. (2011) Solar System initial 176Hf/177Hf inferred from the eucrite Northwest Africa 5073. Meteoritics and Planetary Science 46:A200.

 

Leschner L., Roszjar J., John T., Bischoff A. (2011) Phosphates in Ordinary Chondrites. Meteoritics and Planetary Science 46:A137.

 

Roszjar J., John T., Whitehouse, M., Layne G., Bischoff A. (2011) Halogen composition of the early Solar System inferred from meteoritic apatites. Mineralogical Magazine 75 (3):1759.

 

Roszjar J., Bischoff A., Mezger, K., Srinivasan, G., Whitehouse, M., Scherer, E. E., Geisler, T., (2010) Early evolution of meteorite parent bodies: Chemical and isotopic constraints on meteoritic zircon, baddeleyite, and phosphate grains. Paneth Kolloquium, 27-31 October, Nördlingen, Germany.

 

Roszjar J., Bischoff A., Scherer E. E., Metzler K. (2010) Northwest Africa (NWA) 5073: The coarsest-grained eucrite and its complex postcrystallization history. 88th Annual Meeting of the German Mineralogical Society, 19-22 September, Münster, Germany, DMG-Meetings abstracts, p. 75.

 

Roszjar J., Scherer E. E. (2010) Lu-Hf systematics of the NWA 5073 eucrite reflect a complex thermal history. Meteoritics and Planetary Science 45:A175.

 

Roszjar J., Geisler T., Bischoff A. (2010) Constraints on the thermal evolution of meteorites applying Raman spectroscopic and electron microprobe analyses on zircon grains. Meteoritics and Planetary Science 45:A174.

 

Roszjar J., Metzler K., Bischoff A., Greenwood R. C., Franchi I. A. (2009a) Northwest Africa (NWA) 5073 - An eucritic basalt with cm-sized pyroxenes. Meteoritics and Planetary Science 44:5203.

 

Roszjar J., Geisler T., Scherer E. E., Bischoff A. (2009b) The thermal history of zircon from the NWA 5073 eucrite as revealed by Raman spectroscopy. Meteoritics and Planetary Science 44:5202.

 

Vogel N., Baur H., Bischoff A., Leya I., Roszjar J., Wieler R. (2009) 81Kr-Kr dating to detect pre-irradiation effects in CAIs: Feasibility and first results. Meteoritics and Planetary Science 44:A212.

 

Roszjar J., Srinivasan G., Bischoff A., Mezger K., Whitehouse M. (2009) Hf-W ages of zircons - new constraints on the evolution of the eucrite parent body. 40th Lunar and Planetary Science Conference, 23-27 March , Houston, USA, #1655.

 

Wurm G., Haack H., Teiser J., Bischoff A., Roszjar J. (2008) Chondrules, CAIs and Dust in Protoplanetary Disks in the Framework of Photophoretic Forces. Meteoritics and Planetary Science 43:A169.

 

Teiser J., Wurm G., Haack H., Bischoff A., Roszjar J. (2008) Chondrules and Photophoresis - Old Friends Meet Again. Meteoritics and Planetary Science 43:A152.

 

Roszjar J., Bischoff A., Scherer E. E., and Mezger K. (2008) Zirconium-bearing phases in meteorites. Paneth Kolloquium, 30-31 October, Nördlingen, Germany, #49.

 

 

  • Chronologie und mineralogische Entwicklung des frühen Sonnensystems
  • Bildung und Entwicklung differenzierter Meteorite
  • Geologie planetarer Körper
  • Akzessorische Phasen in undifferenzierten und differenzierten Meteoriten
  • Neue Meteoritenfunde/fälle
  • In-situ analytische Methoden (SEM, EPMA, La-ICP-MS, SIMS, Raman)

Verbandstätigkeit

  • Mitglied der European Association of Geochemistry (EGA) (seit 2013)
  • Mitglied der Meteoritical Society (seit 2009)

 

Gutachtertätigkeit

  • Meteoritics & Planetary Science
  • Chemie der Erde - Geochemistry

 

Beteiligung Vorlesung

  • Introduction to meteoritics and astromineralogy (M.Sc. Seminar, zweisprachig), zusammen mit: DDr. T. Posch, Dr. O. Dionatos, WiSe 2014/2015, Institut für Astrophysik, Universität Wien