Zobrazeno 1 - 10
of 453
pro vyhledávání: '"G. Kullerud"'
Autor:
G. Kullerud
Publikováno v:
Bulletin of the Geological Society of Finland, Vol 58, Iss 1, Pp 293-305 (1986)
Recent literature has produced much information on the thermal and compositional stability and on the natural occurrences and mineral associations of monoclinic pyrrhotite. These data together with those obtained from new field and laboratory studies
Externí odkaz:
https://doaj.org/article/e9d1e2d70ca04b76a226ed8729df8a1c
Publikováno v:
Journal of Geochemical Exploration. 39:49-90
The concept of metallogenic province has won general acceptance in economic geology. It is agreed that metallogenic provinces offer good opportunities for exploration of new ore deposits. The concept of geochemical province is also established, but i
Autor:
Yang TY; Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, China., Gu SW; Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, China., Zhang YX; Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, China., Zheng F; Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons, Forschungszentrum Jülich GmbH, 52425, Jülich, Germany.; Electron Microscopy Center, South China University of Technology, Guangzhou, 511442, China., Kong D; Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons, Forschungszentrum Jülich GmbH, 52425, Jülich, Germany., Dunin-Borkowski RE; Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons, Forschungszentrum Jülich GmbH, 52425, Jülich, Germany., Wu D; Key Laboratory for Macromolecular Science of Shaanxi Province, Shaanxi Key Laboratory for Advanced Energy Devices, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, 710119, China., Ge ZH; Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, China., Feng J; Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, China., Jin L; Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons, Forschungszentrum Jülich GmbH, 52425, Jülich, Germany.
Publikováno v:
Advanced materials (Deerfield Beach, Fla.) [Adv Mater] 2024 Feb; Vol. 36 (7), pp. e2308353. Date of Electronic Publication: 2023 Dec 07.
Publikováno v:
Geological Magazine. 113:575-578
SummaryCharges of Fe-tremolite, sulphur and water sealed in gold capsules and run at 600°C and 1 kb confining pressure for one month yielded talc, anhydrite, pyrite and quartz as principal mineral phases. It is concluded that in a S-rich environment
Autor:
J. Pebler, H. Kuhlmann, D. Klein, M. Drabek, T. Lind, S. Takeno, I. Burkart-Baumann, G.C. Amstutz, Günter H. Moh, G. Amthauer, P. Ramdohr, G. Kullerud, D. Hanus, R. Sobott, N. Wang, H.-J. Bernhardt
Publikováno v:
Neues Jahrbuch für Mineralogie - Abhandlungen. 144:291-342
Autor:
N.Z. Boctor, G. Kullerud
Publikováno v:
Journal of Solid State Chemistry. 71:513-521
The phase relations in the SeS system were investigated by the appearance of phase method, differential thermal analysis, and differential scanning calorimetry. High purity selenium melts at 216 ± 2°C. A peritectic exists at 85 at. % Se and 168
Publikováno v:
Geochimica et Cosmochimica Acta. 51:1705-1715
The mercury ores of the New Idria Mining District are composed of metacinnabar and cinnabar with minor amounts of stibnite and iron disulfides. Metacinnabar from the main ore zone at the New Idria Mine contains Fe as a major impurity (0.96 to 2.80 wt
Publikováno v:
Geochimica et Cosmochimica Acta. 46:1903-1911
Pampa del Infierno, an L6 chondrite, displays strong evidence of impact metamorphism. Rare chondrules and two types of dark-colored clasts occur in a light-colored matrix. Granular clasts are similar in mineralogy and chemistry to the host meteorite,
Publikováno v:
Chemical Geology. 25:245-256
A proton induced X-ray emission (PIXE) method has been developed for determination of the concentrations of elements (with Z > 12) in geological samples. In this procedure proton bombardment is utilized to induce characteristic X-rays in all elements