Zobrazeno 1 - 10
of 75
pro vyhledávání: '"Pär Weihed"'
Autor:
Pär Weihed
Publikováno v:
Mineral Economics. 35:409-427
In Sweden, mining of metallic mineral resources goes back at least 1000 years, possibly much longer. This paper reviews the development of exploration over the past 500 years and discusses exploration based on 1) demand and price, 2) technical develo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c5384c7f2dfc48491a0c3af5ce2790d8
https://doi.org/10.1007/s13563-022-00299-2
https://doi.org/10.1007/s13563-022-00299-2
Publikováno v:
Mineralium Deposita. 56:425-440
To model the formation of orogenic gold deposits, in a global perspective, it is important to understand the ore-forming conditions not only for deposits hosted in greenschist facies rocks but also in amphibolite facies. The Paleoproterozoic Fäbolid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d86a434473868cb158305b6d8d811ce3
https://doi.org/10.1007/s00126-020-00977-7
https://doi.org/10.1007/s00126-020-00977-7
Autor:
Stefan Bergman, Pär Weihed
Publikováno v:
Geological Society, London, Memoirs. 50:27-82
Two lithotectonic units (the Norrbotten and Overkalix units) occur inside the Paleoproterozoic (2.0–1.8 Ga) Svecokarelian orogen in northernmost Sweden. Archean (2.8–2.6 Ga and possibly older) base ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::13d55fa5d400b0db4cfc08c4ebe59f8e
https://doi.org/10.1144/m50-2016-29
https://doi.org/10.1144/m50-2016-29
Publikováno v:
Geological Society, London, Memoirs. 50:83-130
The Bothnia–Skelleftea lithotectonic unit is dominated by turbiditic wacke and argillite (Bothnian basin), deposited at 1.96 (or older)–1.86 Ga, metamorphosed generally under high-grade conditions and intruded by successive plutonic suites at 1.9
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::11ce17109678b7b185d8a3a2acaded93
https://doi.org/10.1144/m50-2017-10
https://doi.org/10.1144/m50-2017-10
Publikováno v:
Mineral Economics. 32:111-121
The concept of declining availability due to declining primary resource quality has been investigated for various resource categories to try to determine the effort needed in future to either extract the resource or to treat it for intended use. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f3272f16619d5a08fb2130be9cb01b60
https://doi.org/10.1007/s13563-019-00175-6
https://doi.org/10.1007/s13563-019-00175-6
Publikováno v:
Precambrian Research. 321:123-133
The Northern Norrbotten region, and in particular the Kiruna area, hosts a number of large apatite iron oxide deposits (e.g. the huge Kiirunavaara ore) of significant economic importance. Age data from rock lithologies hosting these ores, represented
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a73e4b50a4102a8d3505824160a628f7
https://doi.org/10.1016/j.precamres.2018.12.003
https://doi.org/10.1016/j.precamres.2018.12.003
Publikováno v:
Journal of African Earth Sciences. 145:317-330
New geochemical data of the hydrothermal alteration zones associated with gold-bearing quartz veins at Atud mine are used for better understanding the ore evolution and exploration vectoring. ASTER and Landsat 8 OLI data are used to elucidate the dis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::15de662807d5516b0dd434b486121ec6
https://doi.org/10.1016/j.jafrearsci.2018.01.013
https://doi.org/10.1016/j.jafrearsci.2018.01.013
Autor:
Glenn Bark, Jo Dewulf, Johannes Drielsma, Rita Schulze, Rodrigo Freitas de Alvarenga, Pär Weihed, Jeroen B. Guinée
Publikováno v:
Resources Conservation and Recycling, 145, 40-48
Resources Conservation and Recycling
Resources Conservation and Recycling
Consideration of sustainable supply of (primary) metals is increasingly influencing the policy agenda of western societies. Environmental sustainability can be managed from different perspectives, including a site-oriented one (strongly used by the m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b9ed38ee0b742934df778f0308621fe4
https://hdl.handle.net/1887/85618
https://hdl.handle.net/1887/85618
Publikováno v:
Ore Geology Reviews. 78:447-492
The Northern Norrbotten Ore Province in northernmost Sweden includes the type localities for Kiruna-type apatite iron deposits and has been the focus for intense exploration and research related to Fe oxide-Cu-Aumineralisation during the last decades
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0f1750b320d915317e17f526801b4ac9
https://doi.org/10.1016/j.oregeorev.2016.02.011
https://doi.org/10.1016/j.oregeorev.2016.02.011
Autor:
Andrea J. Russell-Vaccari, Pär Weihed, Thomas Drnek, Johannes Drielsma, Laia Perez Simbor, Mark Mistry, Tom Brady
Publikováno v:
The International Journal of Life Cycle Assessment. 21:85-105
Despite 20 years of research, there remains no robust, globally agreed upon method—or even problem statement—for assessing mineral resource inputs in life cycle impact assessment (LCIA). As a result, inclusion of commonly used methods such as abi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5d00ddd4dc590feee5b26a4522f84ff6
https://doi.org/10.1007/s11367-015-0991-7
https://doi.org/10.1007/s11367-015-0991-7