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Norsk versjon | ||||
| THE ORE DATABASE | |||||
| Deposit Area 624 - 031 | |||||
| (Last updated 18.mar.2020) | |||||
Name of Deposit Area : Stormyra |
| (Object Id : 0624,031,00,00) |
| Location |
| County : | Buskerud (06) | Municipality : | Øvre Eiker (0624) |
| Map 1:50000: | Hokksund (1714-1) | Map 1:250000: | Skien |
| Marking point: | Longitude: | 9.8128150 | Latitude: | 59.7703610 |
| EU89-UTM Zone 32 | (Coordinates IS confirmed) |
| X-coord: | 545650 m. | Y-coord: | 6626117 m. |
|
|
| Commodity |
| Main Type: | Ferrous metals(Fe, Mn, Ti) | Sub Type: | Iron-Titanium | |
| Element(s): | Fe Ti |
| Production |
| Activity: | Pitting | Reserves: | ||
| Prod. method: | Production: | |||
| Prod. status: | Volume of dump: | 30 m3 |
| Importance |
| Public: | Not Assessed (reg. 18.02.2015) |
| Economical: | Minor interest , (Confirmed 21.nov.2019 by Jan Sverre Sandstad) |
Mineralization |
| Era: | Proterozoic | Period: | Mesoproterozoic | |
| Dating: | Method: | |||
| Genesis: | Orthomagmatic formation | Form: | Irregular | |
| Main texture: | Structureless | Min. distribution: | Disseminated (<20 % ore minerals) |
| Main grain size: | Medium grained (1-3 mm) | Main alteration: |
| Strike/Dip: | Direction: | |||
| Plunge: |
| Ti-deposit type(s) |
| Main type: | Magmatic | Ilm/Mt-ratio: | ||
| Sub type: | Mt +/- Ilm +/- Ap in mafic intrusion | %TiO(Ore): | ||
| Titanium province: | Deposits outside the Ti - provinces | %P2O5(Ore): | ||
| Host rock: | Gabbro | %MgO(Ilm): | ||
| Main Ti mineral: | Ilmenite | %V2O3(Mt): | ||
| ppm U (Rutile): |
| 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 | Plagioclase | Major mineral (>10%) | |
| Gangue mineral | Amphibole | Major mineral (>10%) | |
| Gangue mineral | Apatite | Subordinate mineral (1-10%) | |
| Ore mineral | Magnetite | Major mineral (>10%) | |
| Ore mineral | Ilmenite | Subordinate mineral (1-10%) |
Information(s) in free text format |
| Free text |
| Forekomsten ligger 500 m sør for Honsvannsveien omkring toppen av en rund ås med granskog. Skjerpet består av en vannfylt dagskjæing med vegger som er 4-5 m lange og opptil 2 m høy i nord. Veggene, som i hovedsak er utilgjengelig, domineres av blokkoppsprukket, middelskornet metagabbro som dels er foliert. Den kan være svakt rustfarget, men forekomsten er en jern-titan forekomst som kan sammenlignes med Gullaksrud (BU0209) som ligger 7 km lengre mot SSV. Ca. 80 m lengre mot sørøst er det skutt en mindre skjæring mot vest i en 5-6 m høy brattskrent. Skjerpet ligger i tett granskog og en eventuell tipp er fullstendig gjenvokst. I skrenten finnes foliert metagabbro. |
Fieldsamples |
| Sample No. | Sample type | Miscellanrous | ||||
| BU0195.01 | Dump |
|
| NB! All analyse values are shown at the end of the printout.: |
Name of Locality : Stormyra øst |
| (Object Id : 0624,031,01,00) |
| Location |
| County : | Buskerud (06) | Municipality : | Øvre Eiker (0624) |
| Map 1:50000: | Hokksund (1714-1) | Map 1:250000: | Skien |
| Marking point: | Longitude: | 9.8140330 | Latitude: | 59.7699130 |
| EU89-UTM Zone 32 | (Coordinates IS confirmed) |
| X-coord: | 545719 m. | Y-coord: | 6626067 m. |
|
|
| Commodity |
| Main Type: | Ferrous metals(Fe, Mn, Ti) | Sub Type: | Iron-Titanium | |
| Element(s): | Fe Ti |
| Production |
| Activity: | Pitting | Reserves: | ||
| Prod. method: | Production: | |||
| Prod. status: | Volume of dump: |
Mineralogy |
| Relationship | Mineral | Amount | |
| Gangue mineral | Amphibole | Major mineral (>10%) | |
| Gangue mineral | Plagioclase | Major mineral (>10%) | |
| Ore mineral | Magnetite | Major mineral (>10%) | |
| Ore mineral | Ilmenite | Subordinate mineral (1-10%) |
Lithology: |
| Relationship | Rock | Origin | |
| Host rock | Metagabbro | Intrusive Original rock :Gabbro |
|
| Metamorphic facies :Amphibolite |
Structures |
| Location: | Type: | Orientation(360 gr.): | Relation to min.: | |
| Host rock | Foliation | Strike/Dip :166 / 65 | Post-mineralisation ;...Effect :None |
Information(s) in free text format |
| Free text |
| En mindre dagskjæring i svakt foliert metagabbro finnes på østsida av en 5-6 m høy skrent. Tippen er liten og svært overgrodd. |
Analyse Results |
| from |
| Deposit Area 624 - 031 Stormyra |
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# |
| BU0195.01 | Dump | 89 | 87 | 12 | 50 | 63 | .1 | 1.0 |
| ------------------ |
| Sample No. | Pt# | Pd# | As* | Cd* | Ba* | Mo* | Sn* | Sb* | Bi* |
| BU0195.01 | 6.0 | -1.0 | 1 | .2 | 80 | 0.68 | 0 | 0 | 0 |
| ------------------ |
| Sample No. | Se* | Ga* | Ge* | In* | S% | V* | Cr* | Mn* | Fe% |
| BU0195.01 | 0.40 | 11.40 | 0.11 | 0.03 | .31 | 348 | 31 | 454 | 8.59 |
| ------------------ |
| Sample No. | Th* | U* | W* | Rb* | Sr* | Y* | Zr* | Nb* | Ta* |
| BU0195.01 | 0.50 | 0.24 | 0 | 7.7 | 24.2 | 11.2 | 4 | 0.11 | -0.01 |
| ------------------ |
| Sample No. | Cs* | La* | Ce* | B* | Li* | Be* | Na* | Mg* | Al* |
| BU0195.01 | 1.16 | 7.40 | 16.80 | -10 | 2 | 0 | 0 | 1 | 1 |
| ------------------ |
| Sample No. | P* | K * | Ca* | Sc* | Ti* | Te* | Hf* | Re* | Hg* |
| BU0195.01 | 2200 | 0 | 1 | 14.70 | 0 | -0.01 | 0.17 | 0 | -0 |
| ------------------ |
| Sample No. | Tl* | ||||||||
| BU0195.01 | 0 |
| The fact sheet was created on 24.10.2025 |
| Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
| Copyright © 2025 Geological Survey of Norway |