Zobrazeno 1 - 10
of 49
pro vyhledávání: '"Peter W.U. Appel"'
Autor:
Birgitte Stoffersen, Rasmus Køster-Rasmussen, Jorge Ivan Contreras Cardeño, Peter W.U. Appel, Margrethe Smidth, Leoncio D. Na-Oy, Debbie Libua Lardizabal, Rudy W. Onos
Publikováno v:
Journal of Health and Pollution, Vol 9, Iss 24, Pp 1-6 (2019)
Background. The amalgamation method used by artisanal small-scale miners is the single largest source of global mercury emission. The goal of the ‘Free Your Mine’ project is to stop mercury use in artisanal and small-scale mining. Objectives. The
Externí odkaz:
https://doaj.org/article/6384834d07114e13aca9a77e3d4d3393
Autor:
Peter W.U. Appel, PhD, Leoncio Na-Oy
Publikováno v:
Journal of Health and Pollution, Pp 5-10 (2012)
Background. More than ten million small-scale miners (SSM) worldwide use mercury to extract gold, releasing large amounts of the toxic element into the environment. Alternatives to mercury have been suggested over the years to little avail. A group o
Externí odkaz:
https://doaj.org/article/13049276bd994ad8847c43d5740b0764
Autor:
Jorge Ivan Contreras Cardeño, Birgitte Stoffersen, Rudy W Onos, Debbie Libua Lardizabal, Leoncio D Na-Oy, Margrethe Smidth, Rasmus Køster-Rasmussen, Peter W.U. Appel
Publikováno v:
Journal of Health & Pollution
Stoffersen, B, Køster-Rasmussen, R, Cardeno, J I C, Appel, P W U, Smidth, M, Na-Oy, L D, Lardizabal, D L & Onos, R W 2019, ' Comparison of Gold Yield with Traditional Amalgamation and Direct Smelting in Artisanal Small-Scale Gold Mining in Uganda ', Journal of Health and Pollution, vol. 9, no. 24, 191205 . https://doi.org/10.5696/2156-9614-9.24.191205
Journal of Health and Pollution, Vol 9, Iss 24, Pp 1-6 (2019)
Stoffersen, B, Køster-Rasmussen, R, Cardeno, J I C, Appel, P W U, Smidth, M, Na-Oy, L D, Lardizabal, D L & Onos, R W 2019, ' Comparison of Gold Yield with Traditional Amalgamation and Direct Smelting in Artisanal Small-Scale Gold Mining in Uganda ', Journal of Health and Pollution, vol. 9, no. 24, 191205 . https://doi.org/10.5696/2156-9614-9.24.191205
Journal of Health and Pollution, Vol 9, Iss 24, Pp 1-6 (2019)
Background. The amalgamation method used by artisanal small-scale miners is the single largest source of global mercury emission. The goal of the ‘Free Your Mine’ project is to stop mercury use in artisanal and small-scale mining. Objectives. The
Autor:
Birgitte Stoffersen, Ivan Zahinos Ruiz, Rasmus Køster-Rasmussen, Leoncio D Na-Oy, Asta Selloane Sekamane, Peter W.U. Appel
Publikováno v:
Journal of Health & Pollution
Journal of Health and Pollution, Vol 8, Iss 19, Pp 1-5 (2018)
Stoffersen, B, Appel, P W U, Na-Oy, L D, Sekamane, A S, Ruiz, I Z & Køster-Rasmussen, R 2018, ' Introduction of mercury-free gold extraction to small-scale miners in the Cabo Delgado province in Mozambique ', Journal of Health and Pollution, vol. 8, no. 19, 180909 . https://doi.org/10.5696/2156-9614-8.19.180909
Journal of Health and Pollution, Vol 8, Iss 19, Pp 1-5 (2018)
Stoffersen, B, Appel, P W U, Na-Oy, L D, Sekamane, A S, Ruiz, I Z & Køster-Rasmussen, R 2018, ' Introduction of mercury-free gold extraction to small-scale miners in the Cabo Delgado province in Mozambique ', Journal of Health and Pollution, vol. 8, no. 19, 180909 . https://doi.org/10.5696/2156-9614-8.19.180909
Background. The majority of small-scale gold miners worldwide, including those in Mozambique, use mercury to extract gold. Over the last fifty years, gold production from small-scale mining has been accelerating and consequently the amount of mercury
Publikováno v:
Earth & Environmental Sciences Publications
The Archean craton of West Greenland consists of many fault-bounded Eoarchean to Neoarchean tectonic terranes (crustal blocks). These tectonic terranes are composed mainly of tonalite–trondhjemite–granodiorite (TTG) gneisses, granitic gneisses, m
Autor:
Kim H. Esbensen, Peter W.U. Appel
Publikováno v:
TOS Forum. 2020:3
Author Summary: The increasing population on planet Earth has many impacts—one is a strong influence on the amount of mercury released to the environment. The worst influence stems from the rapidly increasing number of small-scale gold miners in As
Publikováno v:
Nature Geoscience. 6:871-874
Earth’s crust formed from melted mantle, yet the earliest record of this process is recorded only in crustal rocks. Isotopic dating of mantle rocks in the Ujaragssuit Nunât intrusion, southwest Greenland, identify melting events that occurred up t
Autor:
Peter W.U. Appel, Leoncio D Na-Oy
Publikováno v:
Journal of Environmental Protection. :1-5
Mercury pollution from small-scale gold mining poses a serious threat to the global and local environment. Recycling of mercury for small-scale miners has been introduced over decades in Tanzania with little success. The environmentally benign borax
Autor:
Brian F. Windley, Peter W.U. Appel, Ali Polat, Brian J. Fryer, Iain M. Samson, Robert Frei, Christopher G. Weisener
Publikováno v:
Precambrian Research. :124-153
The Fiskenaesset Complex, SW Greenland, contains the world's best preserved Archean (∼2970 Ma) layered anorthosite, leucogabbro, gabbro, and ultramafic association. The complex was emplaced into Archean oceanic crust distal from continental lithosp
Publikováno v:
Chemical Geology. :66-82
The Mesoarchean Fiskenaesset Complex was emplaced as multiple sills and dykes of magma and crystal mush into oceanic crust, forming an association of ca. 550-meter-thick layered anorthosites, leucogabbros, gabbros, hornblendites, pyroxenites, dunites