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pro vyhledávání: '"Stefan Halder"'
Autor:
Stefan Halder, Friederike Stock, Stephan Opitz, Sabine Ladstätter, Helmut Brückner, Anna Pint, Sirri Seren
Publikováno v:
Quaternary International. 501:349-363
Palaeogeographical research regarding coastline and landscape changes has been conducted in the Kucuk Menderes graben and the environs of the ancient city of Ephesus in Western Turkey for a few decades. Based on geophysical data, multi-proxy and micr
Autor:
Bernhard Bühn, Bernd Lehmann, Stefan Halder, Alexandre Raphael Cabral, Henry Francisco Galbiatti, Antônio Augusto Seabra Gomes
Publikováno v:
Journal of South American Earth Sciences. 79:377-383
In-situ laser ablation and multicollector–inductively coupled plasma–mass spectrometry were combined to analyse for sulfur isotopes in sulfide minerals that occur in the 2.7-billion-year-old black shale of Serra Sul, Carajas mineral province, Bra
Autor:
Bernd Lehmann, Jean de la Paix Ngizimana, Stefan Halder, Michael Biryabarema, Jean Ruzindana Munana
Publikováno v:
Journal of Geochemical Exploration. 144:528-538
The Neoproterozoic granitic rare-metal pegmatites of the Gatumba mining district in western Rwanda have very low base-metal and sulfide content, and are very low in arsenic or other hazardous metals. However, their hydrothermal halos display slight e