Sökning: "mineral magnetic analysis"
Visar resultat 21 - 25 av 33 avhandlingar innehållade orden mineral magnetic analysis.
21. Mössbauer Spectroscopy of Meteoritic and Synthetic Fe-Ni Alloys
Sammanfattning : This thesis reports on the results of investigating Fe-containing minerals in meteorites, with focus on Fe-Ni minerals and their magnetic properties, along with some synthetic Fe-Ni analogues. The New Halfa meteorite, which fell in Sudan 1994, has been studied using Mössbauer spectroscopy, X-ray diffraction, and electron microprobe analysis techniques, and classified as an ordinary L-type chondrite of petrologic type 4. LÄS MER
22. Geophysical targeting of Fe-oxide Cu-Au deposits in the northern fennoscandian sheild
Sammanfattning : In the last decades Fe-Oxide Cu-Au deposits have been discovered and developed in Australia, South America and Canada. This class of mineral deposits is also present in northern Sweden and thus represents a potential target for improving the mineral production of the country. LÄS MER
23. Geophysical vectoring of mineralized systems in northern Norrbotten
Sammanfattning : The Fennoscandian Shield as a part of a large Precambrian basement area is located in northern Europe and hosts economically important mineral deposits including base metals and precious metals. Regional geophysical data such as potential field and magnetotelluric data in combination with other geoscientific data contain information of importance for an understanding of the crustal and upper mantle structure. LÄS MER
24. Geophysical and petrophysical characterisation of the Tjårrojåkka IOCG mineralisation, Sweden
Sammanfattning : A geophysical-petrophysical study has been performed in an area WSW of the city of Kiruna, northern Sweden. Particular attention has been dedicated to the Tjårrojåkka iron oxide copper gold (IOCG) mineralisations. LÄS MER
25. Mineralogical, chemical and textural characterisation of the Malmberget iron ore deposit for a geometallurgical model
Sammanfattning : The northern Norrbotten ore province is an intensely mineralised area and has traditionally been a very important mining district. It contains Fe, Cu-Au, Au, and Ag deposits ranging from world-class ore deposits to small and uneconomic ones (Martinsson 2004). The most important are the Kiruna and Malmberget iron ores and the Aitik Cu-Au deposit. LÄS MER