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Record #110661:
- #110661
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MARC recordMechanism of formation of composite chalcopyrite - copper sulfide lamellae in bornites from Gruvberget, northern Sweden / Örjan Amcoff, Jan-Olof Hedin.
| Title: | Mechanism of formation of composite chalcopyrite - copper sulfide lamellae in bornites from Gruvberget, northern Sweden / Örjan Amcoff, Jan-Olof Hedin. |
| Author(s): | Amcoff, Örjan. Hedin, Jan-Olof. |
| Date: | 1991. |
| In: | Geologiska Föreningens i Stockholm Förhandlingar. (1991.), Vol. 113(1) (1991) |
| Abstract: | Proposes that these textures formed during late-stage oxidation via process of replacement exsolution, characterized by loss of copper from bornite crystal and resulting in preferential precipitation of chalcopyrite from supersaturated matrix. Lamellae were subsequently rimmed by digenite or covellite. With continuing loss of copper, because of advanced oxidation, bornite crystal broke down to fine-grained mosaic of idaite + chalcopyrite + bornite. |
| Notes: | Geologiska Föreningens i Stockholm Förhandlingar. Vol. 113(1) :15-23 (1991). |
| Keywords: | 551.1/.4 -- Geology. 553 -- Economic geology. 553.43 -- Copper ores. 54 -- Chemistry. B -- Geology and soil sciences. (*57) -- Sweden. (*571.12) -- Torne lappmark. |
| SPRI record no.: | 110661 |
LDR 01429naa#a2200000#a#4500 001 SPRI-110661 005 20230324130322.0 007 ta 008 230324s1991####xx#a##|##|###|0||#0|eng#d 035 ## ‡aSPRI-110661 040 ## ‡aUkCU-P‡beng‡eaacr 100 1# ‡aAmcoff, Örjan. 245 10 ‡aMechanism of formation of composite chalcopyrite - copper sulfide lamellae in bornites from Gruvberget, northern Sweden /‡cÖrjan Amcoff, Jan-Olof Hedin. 260 ## ‡a[S.l.] :‡b[s.n.],‡c1991. 300 ## ‡ap. 15-23 :‡bill., diags. 500 ## ‡aGeologiska Föreningens i Stockholm Förhandlingar. Vol. 113(1) :15-23 (1991). 520 3# ‡aProposes that these textures formed during late-stage oxidation via process of replacement exsolution, characterized by loss of copper from bornite crystal and resulting in preferential precipitation of chalcopyrite from supersaturated matrix. Lamellae were subsequently rimmed by digenite or covellite. With continuing loss of copper, because of advanced oxidation, bornite crystal broke down to fine-grained mosaic of idaite + chalcopyrite + bornite. 650 07 ‡a551.1/.4 -- Geology.‡2udc 650 07 ‡a553 -- Economic geology.‡2udc 650 07 ‡a553.43 -- Copper ores.‡2udc 650 07 ‡a54 -- Chemistry.‡2udc 650 07 ‡aB -- Geology and soil sciences.‡2local 651 #7 ‡a(*57) -- Sweden.‡2udc 651 #7 ‡a(*571.12) -- Torne lappmark.‡2udc 700 1# ‡aHedin, Jan-Olof. 773 0# ‡7nnas ‡tGeologiska Föreningens i Stockholm Förhandlingar. ‡gVol. 113(1) (1991) ‡wSPRI-15270 917 ## ‡aUnenhanced record from Muscat, imported 2019 948 3# ‡a20230324