|
|
Norsk versjon | ||||
| THE ORE DATABASE | |||||
| Deposit Area 1739 - 030 | |||||
| (Last updated 16.mai.2006) | |||||
Name of Deposit Area : Annlifjell |
| (Object Id : 1739,030,00,00) |
| Drill Cores from the Deposit Area: See Borehole Area Annlifjell |
| Location |
| County : | Nord-Trøndelag (17) | Municipality : | Røyrvik (1739) |
| Map 1:50000: | Røyrvik (1924-4) | Map 1:250000: | Grong |
| Marking point: | Longitude: | 13.3545560 | Latitude: | 64.8685530 |
| EU89-UTM Zone 33 | (Coordinates IS confirmed) |
| X-coord: | 422032 m. | Y-coord: | 7194818 m. |
|
|
| Commodity |
| Main Type: | Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) | Sub Type: | Copper | |
| Element(s): | Cu Zn |
| Production |
| Activity: | Pitting | Reserves: | ||
| Prod. method: | Production: | |||
| Prod. status: | Volume of dump: |
| Importance |
| Public: | Little Importance (reg. 18.02.2015) |
| Economical: | Minor interest |
Operations |
| From - To | Activity | Comments | |
| 1943 - 1943 | Geophysics | ||
| 1970 - 1970 | Geophysics | Company/Institution :NGU | |
| 1972 - 1972 | Geophysics | Company/Institution :NGU | |
| 1980 - 1980 | Geology | Company/Institution :Grong Gruber | |
| 1981 - 1981 | Pitting | Company/Institution :Grong Gruber | |
| 1982 - 1982 | Core drilling | Company/Institution :Grong Gruber | |
| 1985 - 1985 | Geophysics | Company/Institution :Grong Gruber | |
| 1994 - 1994 | Geophysics | Company/Institution :NGU | |
| 1994 - 1996 | Sampling | Company/Institution :NGU |
Mineralization |
| Era: | Paleozoic | Period: | Ordovician | |
| Dating: | Method: | |||
| Genesis: | Volcex | Form: | Irregular | |
| Main texture: | Vein network | Min. distribution: | Disseminated (<20 % ore minerals) |
| Main grain size: | Fine grained (< 1 mm) | Main alteration: | Sericitisation |
| Strike/Dip: | Direction: | |||
| Plunge: |
| Stratigraphic classification of host rock |
| Era: | Paleozoic | Period: | Ordovician |
| Province: | Caledonides | |
| Geotec.unit: | Køli Nappe Complex | |
| Tectonic complex: | Gjersvik Nappe | |
| Igneous complex: |
| Group: | Gjersvikgruppen | Formation: |
Mineralogy |
| Relationship | Mineral | Amount | |
| Gangue mineral | Quartz | Major mineral (>10%) | |
| Gangue mineral | Sericite | Major mineral (>10%) | |
| Gangue mineral | Albite | Major mineral (>10%) | |
| Gangue mineral | Spessartine | Subordinate mineral (1-10%) | |
| Gangue mineral | Epidote | Accessory mineral (<1%) | |
| Ore mineral | Pyrite | Major mineral (>10%) | |
| Ore mineral | Sphalerite | Subordinate mineral (1-10%) | |
| Ore mineral | Chalcopyrite | Subordinate mineral (1-10%) | |
| Ore mineral | Magnetite | Accessory mineral (<1%) | |
| Ore mineral | Pyrrhotite | Accessory mineral (<1%) |
Lithology: |
| Relationship | Rock | Origin | |
| Host rock | Felsisk breksje | Extrusive Original rock :Agglomerate |
|
| Metamorphic facies :Greenschist | |||
| Host rock | Metaryodacitt | Extrusive Original rock :Rhyodacite |
|
| Metamorphic facies :Greenschist | |||
| Wall rock | Grønnstein | Extrusive Original rock :Basalt |
|
| Metamorphic facies :Greenschist |
Structures |
| Location: | Type: | Orientation(360 gr.): | Relation to min.: | |
| Host rock | Foliation | Strike/Dip :220 / 35 | Post-mineralisation ;...Effect :Modifies |
Information(s) in free text format |
| Free text |
| Forekomsten ligger 0,5-1 km nord for veien Gjersvik - Steinfjell, fra Gjersvik og 5 km mot vest. Intense rustsoner er godt blottet langs østskråningen opp mot toppen av fjellet. Mineraliseringene i Annlifjellet er knyttet til bergarter i Gjersvikgruppen. Denne er her representert ved flere grønnsteinstyper, metaryodacitt og en vulkansk breksje. Både den mørke, stilpnomelanrike grønnsteinsvarianten, karakteristisk for det vestlige grønnsteinsbeltet i Gjersvikdekket, og den lyse, såkalte Kirmagrønnsteinen finnes her. Mot NV grenser metavulkanittene mot en trondhjemitt som tilhører Gjersvikdekket. Mineraliseringen representer trolig en tilførselssone som opptrer i felsiske bergarter som tektonostratigrafisk ligger over en ekshalittmineralisering (forekomst NT0307, Annlia). Tilførselssonen består av kvarts-svovelkisårer som vanligvis er noen mm tynne, med tilhørende kraftig sidestensomvandling, serisittisering og silisifisering. Opptil dm-tykke årer er også observert. Den er anriket på sink, kobber, bly og sølv, og har et forhøyet gull-innhold. Putelavastrukturer i området viser at lagrekken er invertert. Vasskisene ligger da stratigrafisk over stringersonen og under den mørke grønnsteinen. |
Fieldsamples |
| Sample No. | Sample type | Miscellanrous | ||||
| NT0306.01 | Bedrock |
|
| NB! All analyse values are shown at the end of the printout.: |
Name of Sample point : Annlifjell |
| (Object Id : 1739,030,00,01) |
| Location |
| County : | Nord-Trøndelag (17) | Municipality : | Røyrvik (1739) |
| Map 1:50000: | Røyrvik (1924-4) | Map 1:250000: | Grong |
| Marking point: | Longitude: | 13.3617960 | Latitude: | 64.8709680 |
| EU89-UTM Zone 33 | (Coordinates IS confirmed) |
| X-coord: | 422382 m. | Y-coord: | 7195079 m. |
|
|
| Commodity |
| Main Type: | Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) | Sub Type: | Copper | |
| Element(s): | Cu Zn |
Fieldsamples |
| Sample No. | Sample type | Miscellanrous | ||||
| JS94041 | Bedrock |
|
| NB! All analyse values are shown at the end of the printout.: |
Name of Sample point : Annlifjell |
| (Object Id : 1739,030,00,02) |
| Location |
| County : | Nord-Trøndelag (17) | Municipality : | Røyrvik (1739) |
| Map 1:50000: | Røyrvik (1924-4) | Map 1:250000: | Grong |
| Marking point: | Longitude: | 13.3582760 | Latitude: | 64.8698510 |
| EU89-UTM Zone 33 | (Coordinates IS confirmed) |
| X-coord: | 422212 m. | Y-coord: | 7194958 m. |
|
|
| Commodity |
| Main Type: | Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) | Sub Type: | Copper | |
| Element(s): | Cu Zn |
Fieldsamples |
| Sample No. | Sample type | Miscellanrous | ||||
| AR94205 | Bedrock |
|
||||
| AR94206 | Bedrock |
|
| NB! All analyse values are shown at the end of the printout.: |
Analyse Results |
| from |
| Deposit Area 1739 - 030 Annlifjell |
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# |
| AR94205 | Bedrock | 12 | 239 | 1052 | -1 | 7 | 5.7 | 46.0 |
| AR94206 | Bedrock | 279 | 15806 | 405 | -1 | 8 | 11.3 | 942.0 |
| JS94041 | Bedrock | 500 | 2904 | -2 | 33 | 18 | .8 | 6.0 |
| NT0306.01 | Bedrock | 10 | 2326 | 5 | 3 | 3 | -.3 | 60.0 |
| ------------------ |
| Sample No. | Pt# | Pd# | Rh# | As* | Cd* | Ba* | Mo* | Sn* | Sb* |
| AR94205 | 14 | -1.0 | 64 | 3.00 | -20 | -5 | |||
| AR94206 | 9999 | 64.3 | 31 | 8.00 | -20 | 32 | |||
| JS94041 | -5.0 | -1.0 | 53 | 13.7 | 22 | 6.00 | -20 | -5 | |
| NT0306.01 | -1.0 | -1.0 | -1.0 | 46 | 15.4 | 9 | 8.00 | -2 |
| ------------------ |
| Sample No. | Bi* | S% | V* | Cr* | Mn* | Fe% | Th* | U* | W* |
| AR94205 | -5 | 1.70 | -1 | 276 | 674 | 2.10 | -20 | ||
| AR94206 | -5 | 4.18 | -1 | 308 | 42 | 5.03 | 91 | ||
| JS94041 | 12 | 2.30 | 129 | 155 | 1533 | 6.23 | 34 | ||
| NT0306.01 | -2 | 2.55 | 1 | 3 | 36 | 3.91 | -2.00 | -5.00 | -2 |
| ------------------ |
| Sample No. | Sr* | Y* | La* | B* | Te* | ||||
| AR94205 | 4.0 | 8.0 | 3.00 | -10.00 | |||||
| AR94206 | 7.0 | 1.0 | -1.00 | -10.00 | |||||
| JS94041 | 5.0 | 2.0 | -1.00 | -10.00 | |||||
| NT0306.01 | 4.0 | 1.00 | 3 |
| The fact sheet was created on 19.05.2024 |
| Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
| Copyright © 2024 Geological Survey of Norway |