Cyclic ore formation of some volcanogenic massive sulfide deposits in the skellefte district, Sweden

Trepka-Bloch, C.

doi:10.1007/bf00204256

Cited by 7 publications

(1 citation statement)

References 6 publications

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“…64 Other bimetallic iron sulfide minerals found in nature include pentlandite ([Fe,Ni] 9 S 8 ), which is a common mineral in chondritic meteorites, polar micrometeorites, and chondritic interplanetary dust particles (IDPs). 67 Bimetallic CuFeS 2 , which is found in volcanogenic massive sulfide deposits among other environments, 68 may offer greatly increased efficiency in the conversion of waste heat into energy. For example, synthetic ∼6.4 nm bimetallic CuFeS 2 can display thermoelectric values ∼77 times higher than bulk chalcopyrite.…”

Section: Pyrite (Fes 2 )mentioning

confidence: 99%

Nature-Inspired and Sustainable Synthesis of Sulfur-Bearing Fe-Rich Nanoparticles

O’Connor

Hou

Liu

et al. 2020

ACS Sustainable Chem. Eng.

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Sulfur-bearing Fe-rich nanoparticles (SINPs) have been subject to increased levels of interest because of their catalytic properties and other features. However, with increasing interest in greener and sustainable practice, traditional engineered routes to SINP synthesis have become a concern owing to their high energy and resource demand as well as the use of potentially hazardous or environmentally harmful reagents. Here, we aim to bring attention to emerging and burgeoning research across a wide range of disciplines on the formation of both naturally occurring and synthetic SINPs. First, various SINP types are described, and their most important characteristics are outlined. Second, the natural mechanisms of SINP formation are evaluated and their environmental significance explained, predominantly in hydrothermal vents and lithogenic environments, in order to help inspire new approaches to engineered synthesis. Third, an appraisal of various synthetic approaches for SINP assembly is presented, with a focus on green synthesis methods. One exemplar is the use of nature inspired biosynthesis, which has been increasingly explored for the fabrication of cost-effective and environmentally friendlier SINPs. Finally, potential future research directions leading to more sustainable SINP synthesis are put forward.

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Section: Pyrite (Fes 2 )mentioning

confidence: 99%

Nature-Inspired and Sustainable Synthesis of Sulfur-Bearing Fe-Rich Nanoparticles

O’Connor

Hou

Liu

et al. 2020

ACS Sustainable Chem. Eng.

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Synvolcanic mixing of ore lead and the development of lead isotopic provinces in the Skellefte district, Sweden

Billström

Vivallo

1994

Mineral. Deposita

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Source of metals and age constraints for epigenetic gold deposits in the Skellefte and Pohjanmaa districts, central part of the Fennoscandian Shield

et al. 1993

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Abstract. The lead isotopic compositions of galena in Early Proterozoic gold deposits have been determined for three districts in northern Sweden and central Finland. The deposits are hosted by a variety of ~ 1870-1890 Ma Svecofennian host rocks including the volcanosedimentary succession within the Skellefte District island arc in Sweden as well as I-type tonalites at J6rn (Sweden) and Pohjanmaa (Finland). The deposits are epigenetic in relation to these Svecofennian rocks and are part of a goldbearing metallogenetic belt, which can be followed for 600 km parallel to the southwestern margin of the Archaean Domain. In spite of these epigenetic relationships, the lead isotopic data indicate that the deposits are not dramatically younger than the ~1870-1890 Ma Svecofennian host rocks (probably not exceeding 10-20 million years). Two principal lead sources were activated when the gold deposits were formed.-The most significant source is represented by the I-type tonalites, which constitute a relatively primitive (/~ = 9.3) and widely distributed source in the entire metaUogenic belt. In addition, the volcanic components in the westernmost part of the Skellefte District constitute an extremely primitive (~ < 9.0) source, which only locally was an important contributor to the epigenetic deposits in this metallogenetic belt. The significantly different lead isotopic composition estimated for these sources indicates that the volcanic rocks in the western part of the SkeUefte District were not comagmatic with the I-type tonalites recognized at J6rn and central Finland.partly related to volcanogenic massive sulphide deposits of the Skellefte type, partly related to synkinematic intrusions of the J6rn type and partly related to major shear zone structures. This complex metallogenetic province can be followed over a length of about 600 km and includes the Skellefte mining district in northern Sweden, and the 'main sulphide belt' of central Finland (Fig. 1). Volcanogenic massive sulphide deposits (VMS) and Niores were until recently the only ore types which were mined in this province, but during the last decade, increasing interest has also been focused on gold lode deposits and two gold mines have come into production since 1988.The origin of the massive sulphide deposits and the Ni-ores has been discussed in a number of papers (see e.g.

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Cyclic ore formation of some volcanogenic massive sulfide deposits in the skellefte district, Sweden

Cited by 7 publications

References 6 publications

Nature-Inspired and Sustainable Synthesis of Sulfur-Bearing Fe-Rich Nanoparticles

Nature-Inspired and Sustainable Synthesis of Sulfur-Bearing Fe-Rich Nanoparticles

Synvolcanic mixing of ore lead and the development of lead isotopic provinces in the Skellefte district, Sweden

Source of metals and age constraints for epigenetic gold deposits in the Skellefte and Pohjanmaa districts, central part of the Fennoscandian Shield

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