| 
Norsk versjon | ||||
| THE ORE DATABASE | |||||
| Deposit Area 624 - 046 | |||||
| (Last updated 10.aug.2010) | |||||
Name of Deposit Area : Korsbakken  | 
| (Object Id : 0624,046,00,00) | 
| Location | 
| County : | Buskerud (06) | Municipality : | Øvre Eiker (0624) | 
| Map 1:50000: | Kongsberg (1714-2) | Map 1:250000: | Skien | 
| Marking point: | Longitude: | 9.7023120 | Latitude: | 59.6813050 | 
| EU89-UTM Zone 32 | (Coordinates IS confirmed) | 
| X-coord: | 539549 m. | Y-coord: | 6616128 m. | 
| 
 | 
| Commodity | 
| Main Type: | Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) | Sub Type: | Lead | |
| Element(s): | Pb Zn Cu | 
| Production | 
| Activity: | Pitting | Reserves: | ||
| Prod. method: | Production: | |||
| Prod. status: | Volume of dump: | 50 m3 | 
| Importance | 
| Public: | Little Importance (reg. 18.02.2015) | 
| Economical: | Minor interest , (Confirmed 24.feb.2009 by Terje Bjerkgård) | 
Mineralization  | 
| Era: | Paleozoic | Period: | Permian | |
| Dating: | Method: | |||
| Genesis: | Hydrothermal breccia | Form: | Irregular | |
| Main texture: | Vein network | Min. distribution: | 
| Main grain size: | Main alteration: | 
| Strike/Dip: | 16 / 90 | Direction: | ||
| Plunge: | 
| Stratigraphic classification of host rock | 
| Era: | Proterozoic | Period: | Mesoproterozoic | 
| Province: | South Norwegian Basement Province | |
| Geotec.unit: | Kongsberg Complex | |
| Tectonic complex: | ||
| Igneous complex: | 
| Group: | Formation: | 
Mineralogy  | 
| Relationship | Mineral | Amount | |
| Gangue mineral | Quartz | Major mineral (>10%) | |
| Gangue mineral | Carbon | Major mineral (>10%) | |
| Ore mineral | Sphalerite | Major mineral (>10%) | |
| Ore mineral | Pyrite | Major mineral (>10%) | |
| Ore mineral | Arsenopyrite | Subordinate mineral (1-10%) | |
| Ore mineral | Chalcopyrite | Subordinate mineral (1-10%) | |
| Ore mineral | Galena | Subordinate mineral (1-10%) | 
Lithology:  | 
| Relationship | Rock | Origin | |
| Wall rock | Quartz diorite | Intrusive Original rock :Quartz diorite  | 
Structures  | 
| Location: | Type: | Orientation(360 gr.): | Relation to min.: | |
| Wall rock | Foliation | Strike/Dip :287 / 80 | Pre-mineralisation ;...Effect :None | |
| Wall rock | Foliation | Strike/Dip :335 / 60 | Pre-mineralisation ;...Effect :None | 
Information(s) in free text format  | 
| Free text | 
| Forekomsten ligger ca. 170 m nord for Fiskumelva og det er lett atkomst via gårdsvei fra Smebrua. Det er drevet en røskegrøft ca. 10 m lang, 2 m bred og 1.5 m dyp og en vannfylt grop 4.5 m lang, 2.5 m bred og 1.5 m dyp ca. 25 m mot nord-nordøst. Ca. 25 m vest for grøfta er et lite pegmatittbrudd (se BU 0030 i industrimineraldatabasen). Skjerpene er drevet på en kvartsbreksje sone som er steiltstående og har retning mot NNØ (016 grader). Sonen er ca. 2 m bred og består av drusekvarts. Sulfider er tilknyttet seinere kvartsårer som gjennomskjærer en tidligere kvarts-karbon mineralisering. Kvartsen er typisk i kamstruktur, mens sulfidene sitter typisk i randsonen av strukturen. Sulfider er vesentlig pyritt og sinkblende med underordnet kobberkis og blyglans, samt et lysegrått mineral som sannsynligvis er arsenkis. | 
Fieldsamples  | 
| Sample No. | Sample type | Miscellanrous | ||||
| BU0210.01 | Dump | 
  | 
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| BU0210.02 | Dump | 
  | 
| NB! All analyse values are shown at the end of the printout.: | 
Name of Locality : Skjerp 1  | 
| (Object Id : 0624,046,01,00) | 
| Location | 
| County : | Buskerud (06) | Municipality : | Øvre Eiker (0624) | 
| Map 1:50000: | Kongsberg (1714-2) | Map 1:250000: | Skien | 
| Marking point: | Longitude: | 9.7025280 | Latitude: | 59.6814750 | 
| EU89-UTM Zone 32 | (Coordinates IS confirmed) | 
| X-coord: | 539560 m. | Y-coord: | 6616148 m. | 
| 
 | 
| Commodity | 
| Main Type: | Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) | Sub Type: | Lead | |
| Element(s): | Pb Zn Cu | 
Analyse Results  | 
| from | 
| Deposit Area 624 - 046 Korsbakken | 
Element analyses  | 
( *=parts pr. million, #=parts pr.billion, Negative values means below detection limit value.)  | 
| Sample No. | Sample Type | Cu* | Zn* | Pb* | Co* | Ni* | Ag* | Au# | 
| BU0210.01 | Dump | 1510 | 13200 | 762 | 21 | 12 | 17.4 | 796.0 | 
| BU0210.02 | Dump | 1580 | 6650 | 3060 | 92 | 33 | 22.3 | 3000.0 | 
| ------------------ | 
| Sample No. | As* | Mo* | Sb* | Bi* | S% | Fe% | |||
| BU0210.01 | 10000 | 1.00 | 38 | 8 | 3.81 | 4.70 | |||
| BU0210.02 | 10000 | 3.00 | 297 | 35 | 10.00 | 15.35 | 
| The fact sheet was created on  04.11.2025 | 
| Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no  | 
| Copyright © 2025 Geological Survey of Norway |