(Last updated: 10.12.1998)
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Norsk versjon | ||||
| THE ORE DATABASE | |||||
| Occurence 5042 - 009 Sæterbekken | |||||
| (Object Id: 275) (Last updated: 10.12.1998) |
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| Location |
| County: | Trøndelag | Municipality: | Lierne (5042) |
| Map 1:50000: | Limingen (1924-2) | Map 1:250000: | Grong |
| Coordinate system: | EU89-UTM Zone 33 |
| East: | 441061 m. | North: | 7178248 m. |
| Longitude: | 13.7628590 | Latitude: | 64.7238030 |
| Show on map |
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| Resource |
| Resource Type: | Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) | Resource Subtype: | Sulphides | |
| Element(s): | Kis |
| Importance |
| Raw material meaning: | Not Assessed (reg. 18.02.2015) |
| Resources and production |
| Activity: | Exploration | Reserves: | ||
| Operating method: | Historical production: |
Operations |
| From - To | Activity | Comments | |
| 1991 - 1992 | Sampling | Company/Institution :NGU |
Mineralization |
| Era: | Paleozoic | Period: | Ordovician | |
| Genesis: | Sedimentary deposit | Form: | Layer | |
| Main texture: | Banded | Min. distribution: | Semi-massive (20-50 % ore minerals) |
| Main grain size: | Fine grained (< 1 mm) | Main alteration: | No country rock alteration |
| Strike/Dip: | 60 / 45 | Direction: | ||
| Plunge: |
| Stratigraphic classification of host rock |
| Era: | Paleozoic | Period: | Ordovician |
| Province: | Caledonides | |
| Geotec.unit: | Køli Nappe Complex | |
| Tectonic complex: | Leipikvatn Nappe | |
| Igneous complex: |
| Group: | Røyrvik | Formation: | Røyrvik phyllite |
Mineralogy |
| Relationship | Mineral | Amount | |
| Gangue mineral | Quartz | Major mineral (>10%) | |
| Gangue mineral | Graphite | Major mineral (>10%) | |
| Gangue mineral | Biotite | Subordinate mineral (1-10%) | |
| Ore mineral | Pyrrhotite | Major mineral (>10%) | |
| Ore mineral | Pyrite | Subordinate mineral (1-10%) | |
| Ore mineral | Chalcopyrite | Accessory mineral (<1%) |
Lithology: |
| Relationship | Rock | Origin | |
| Host rock | Graphite phyllite | Sedimentary Original rock :Argillaceous sediment |
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| Metamorphic facies :Greenschist | |||
| Wall rock | Sandstone | Sedimentary Original rock :Sandstone |
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| Metamorphic facies :Greenschist |
Structures |
| Location: | Type: | Orientation(360 gr.): | Relation to min.: | |
| Wall rock | Foliation | Strike/Dip :53 / 45 | Post-mineralisation ;...Effect :Modifies |
Information(s) in free text format |
| Free text |
| En ny skogsbilvei går opp langs vestsida av Limingelva. Mineraliseringen ligger 100 m opp i Sæterbekken fra det stedet denne løper ut i Limingelva. Den ligger i et bratt hjel i bunnen av en foss. Tilsvarende mineralisering finnes 100 m lengre opp langs elva på toppen av fossen. Denne tilhører trolig en parallell sone. Rustsonene er 2-3 m bred, og er best blottet langs den sørlige bredden av bekken. Mineraliseringen består av semi-massive bånd av magnetkis og svovelkis som er mm- til få cm brede, i fet grafittfyllitt. Det er også sett spor av kobberkis. Metallinnholdet er lik prøvene fra grafittfyllitt på Østnes. |
Bibliography: |
| From NGU's Reference Archive: |
| Oftedahl, Christoffer , 1958 |
| Oversikt over Grongfeltets skjerp og malmforekomster. |
| ;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL;NGU; No.202;1-75 + fo pages |
| Abstract: | |
| Ore occurences of the Grong area: In the period 1910-1918 a great number of ore occurences were discovered in the Grong area. The late state geologist Steinar Foslie mapped the area in the years 1922-1931. Foslie also mapped all claims and occurences and made special field investigations in a few cases. This book presents a survey of all occurences chiefly based on the field observations of Foslie. In addition the present author has done some field work in connection with the three large deposits, Joma, Skorovass, and Gjersvik. The map, Plate 1, shows the areal geology and the location of the occurrences, numbered from 1 to 131. the ore of the occurrences is chiefly pyrite. The larger occurrences also contain some chalcopyrite and sphalerite etc. and the smaller occurrences contain ither pure pyrite with some magnetite. The Joma deposit (No. 1), contains about 15.5 mill. tons of ore. The ore zone forms an arc and is situated within a thick series of greenstones (Fig. 1). The Skorovass mine (No. 2), contains about 7,5 mill. tons of ore. The deposit is situated in a greenstone complex (Fig. 7), and is immediately surrounded by asid tuffs of quartz keratophyric composition (Table 1). |
Fieldsamples |
| Sample No. | Sample type | Miscellanrous | ||||
| LS91044 | Bedrock |
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| LS91045 | Bedrock |
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| NB! All analyse values are shown at the end of the printout.: |
Analyse Results |
| from |
| Deposit Area 5042 - 009 Sæterbekken |
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# |
| LS91044 | Bedrock | 487 | 837 | 150 | 13 | 42 | 1.7 | 78.0 |
| LS91045 | Bedrock | 186 | 309 | 44 | 101 | 168 | 1.0 | 44.0 |
| ------------------ |
| Sample No. | Pt# | Pd# | As* | Cd* | Ba* | Mo* | Sb* | Bi* | S% |
| LS91044 | 6.0 | 7.0 | 47 | 6.5 | 33 | 1.00 | 2 | 2 | 4.59 |
| LS91045 | 11.0 | 97.0 | 156 | .3 | 15 | 13.00 | 4 | 2 | 16.87 |
| ------------------ |
| Sample No. | V* | Cr* | Mn* | Fe% | Th* | U* | W* | Sr* | La* |
| LS91044 | 31 | 13 | 1626 | 7.05 | 5.00 | 5.00 | 1 | 37.0 | 18.00 |
| LS91045 | 27 | 9 | 1040 | 18.78 | 4.00 | 11.00 | 1 | 60.0 | 14.00 |
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| Sample No. | B* | ||||||||
| LS91044 | 3 | ||||||||
| LS91045 | 2 |
| The fact sheet was created on 29.04.2024 |
| Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
| Copyright © 2024 Geological Survey of Norway |