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|
Norsk versjon | ||||
| THE ORE DATABASE | |||||
| Deposit Area 1601 - 007 | |||||
| (Last updated 27.mar.2023) | |||||
Name of Deposit Area : Ålbugruva |
| (Object Id : 1601,007,00,00) |
| Location |
| County : | Sør-Trøndelag (16) | Municipality : | Trondheim (1601) |
| Map 1:50000: | Trondheim (1621-4) | Map 1:250000: | Trondheim |
| Marking point: | Longitude: | 10.2964930 | Latitude: | 63.4475160 |
| EU89-UTM Zone 32 | (Coordinates IS confirmed) |
| X-coord: | 564660 m. | Y-coord: | 7036106 m. |
|
|
| Commodity |
| Main Type: | Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) | Sub Type: | Sulphides | |
| Element(s): | Kis,Cu |
| Production |
| Activity: | Test mining | Reserves: | ||
| Prod. method: | Open pit and underground mining | Production: | ||
| Prod. status: | Disused, closed | Volume of dump: |
| Importance |
| Public: | (No data) |
| Economical: | Not classified/evaluated |
Mineralization |
| Era: | Paleozoic | Period: | Ordovician | |
| Dating: | Method: | |||
| Genesis: | Volcex | Form: | Lens | |
| Main texture: | Structureless | Min. distribution: | Semi-massive (20-50 % ore minerals) |
| Main grain size: | Fine grained (< 1 mm) | Main alteration: | Chloritisation |
| Strike/Dip: | 350 / 25 | Direction: | ||
| Plunge: |
| Stratigraphic classification of host rock |
| Era: | Paleozoic | Period: | Ordovician |
| Province: | Caledonides | |
| Geotec.unit: | Trondheim Nappe Complex | |
| Tectonic complex: | LVB ofiolittfragment | |
| Igneous complex: |
| Group: | Formation: | Bymarkagrønnstein |
Mineralogy |
| Relationship | Mineral | Amount | |
| Gangue mineral | Chlorite | Major mineral (>10%) | |
| Gangue mineral | Feldspar | Subordinate mineral (1-10%) | |
| Ore mineral | Pyrite | Major mineral (>10%) | |
| Ore mineral | Chalcopyrite | Subordinate mineral (1-10%) |
Lithology: |
| Relationship | Rock | Origin | |
| Host rock | Greenstone | Extrusive Original rock :Basalt |
|
| Metamorphic facies :Greenschist |
Structures |
| Location: | Type: | Orientation(360 gr.): | Relation to min.: | |
| Host rock | Foliation | Strike/Dip :350 / 25 | Post-mineralisation ;...Effect :Modifies |
Information(s) in free text format |
| Free text |
| Ovenfor Trolla finnes flere gamle skjerp og gruver. En av de største er Ålbugruva, som ligger rett øst for Ålbumyra. Letteste adkomst er å følge lysløypa fra idrettsplassen til myra og deretter gå opp langs tipphaugen i forkant. Hovedforekomsten ligger i en bratt vestvendt skråning og er en skråsynk ned til en 8 m lang skjæring og innhugg i grønnstein. Malmsonen er 10-15 cm mektig og består av semi-massiv til disseminert pyritt og kobberkis. Den er godt blottet med malakittbelegg i veggen og i taket. |
Bibliography: |
| References not to be found in NGU's Reference Archive.: |
| Rø, Gisle & Midtsian, Aflhild (1995) Bymarka. Geologi og gruvedrift i byens utmark,Trøndelag Amatørgeologiske Forening, Trondheim 1995 |
Fieldsamples |
| Sample No. | Sample type | Miscellanrous | ||||
| JS-T2101 | Bedrock |
|
| NB! All analyse values are shown at the end of the printout.: |
Name of Locality : Stoll |
| (Object Id : 1601,007,01,00) |
| Location |
| County : | Sør-Trøndelag (16) | Municipality : | Trondheim (1601) |
| Map 1:50000: | Trondheim (1621-4) | Map 1:250000: | Trondheim |
| Marking point: | Longitude: | 10.2965010 | Latitude: | 63.4474620 |
| EU89-UTM Zone 32 | (Coordinates IS confirmed) |
| X-coord: | 564660 m. | Y-coord: | 7036100 m. |
|
|
| Commodity |
| Main Type: | Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) | Sub Type: | Copper | |
| Element(s): | Cu |
| Production |
| Activity: | Test mining | Reserves: | ||
| Prod. method: | Underground mining | Production: | ||
| Prod. status: | Disused, closed | Volume of dump: |
Mineralogy |
| Relationship | Mineral | Amount | |
| Gangue mineral | Chlorite | Major mineral (>10%) | |
| Gangue mineral | Feldspar | Major mineral (>10%) | |
| Ore mineral | Pyrite | Major mineral (>10%) |
Lithology: |
| Relationship | Rock | Origin | |
| Host rock | Greenstone | Extrusive Original rock :Basalt |
|
| Metamorphic facies :Greenschist |
Information(s) in free text format |
| Free text |
| En mindre stoll er anlagt rett sør for hovedbruddet. Grønnsteinen er der mer deformert og inneholder også rikelig med 2-3 cm store pyrittkrystaller ved inngangen. Noe malakittutfelling er vanlig. |
Fieldsamples |
| Sample No. | Sample type | Miscellanrous | ||||
| JS-T2102 | Bedrock |
|
| NB! All analyse values are shown at the end of the printout.: |
Name of Locality : Skjerp og dagbrudd i sør |
| (Object Id : 1601,007,02,00) |
| Location |
| County : | Sør-Trøndelag (16) | Municipality : | Trondheim (1601) |
| Map 1:50000: | Trondheim (1621-4) | Map 1:250000: | Trondheim |
| Marking point: | Longitude: | 10.2963930 | Latitude: | 63.4467750 |
| EU89-UTM Zone 32 | (Coordinates IS confirmed) |
| X-coord: | 564656 m. | Y-coord: | 7036023 m. |
|
|
| Commodity |
| Main Type: | Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) | Sub Type: | Copper | |
| Element(s): | Cu |
| Production |
| Activity: | Pitting | Reserves: | ||
| Prod. method: | Production: | |||
| Prod. status: | Volume of dump: |
Mineralogy |
| Relationship | Mineral | Amount | |
| Gangue mineral | Chlorite | Major mineral (>10%) | |
| Gangue mineral | Feldspar | Major mineral (>10%) | |
| Ore mineral | Pyrite | Major mineral (>10%) |
Lithology: |
| Relationship | Rock | Origin | |
| Host rock | Greenstone | Extrusive Original rock :Basalt |
|
| Metamorphic facies :Greenschist |
Information(s) in free text format |
| Free text |
| Lengst sør i skråningen er det et mindre innhugg, 2 m bredt og 6 m langt, i relativt massiv grønnstein med svak disseminasjon av pyritt. |
Name of Locality : Dagbrudd i vest |
| (Object Id : 1601,007,03,00) |
| Location |
| County : | Sør-Trøndelag (16) | Municipality : | Trondheim (1601) |
| Map 1:50000: | Trondheim (1621-4) | Map 1:250000: | Trondheim |
| Marking point: | Longitude: | 10.2907240 | Latitude: | 63.4474060 |
| EU89-UTM Zone 32 | (Coordinates IS confirmed) |
| X-coord: | 564372 m. | Y-coord: | 7036088 m. |
|
|
| Commodity |
| Main Type: | Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) | Sub Type: | Copper | |
| Element(s): | Cu |
| Production |
| Activity: | Pitting | Reserves: | ||
| Prod. method: | Production: | |||
| Prod. status: | Volume of dump: |
Mineralogy |
| Relationship | Mineral | Amount | |
| Gangue mineral | Chlorite | Major mineral (>10%) | |
| Gangue mineral | Feldspar | Major mineral (>10%) | |
| Ore mineral | Pyrrhotite | Major mineral (>10%) | |
| Ore mineral | Pyrite | Major mineral (>10%) |
Lithology: |
| Relationship | Rock | Origin | |
| Host rock | Greenstone | Extrusive Original rock :Basalt |
|
| Metamorphic facies :Greenschist |
Structures |
| Location: | Type: | Orientation(360 gr.): | Relation to min.: | |
| Host rock | Foliation | Strike/Dip :220 / 20 | Post-mineralisation ;...Effect :Modifies |
Information(s) in free text format |
| Free text |
| Forekomsten ligger ca. 280 m vest for Ålbugruva og består av en 12 m lang, 2-3 m bred og opptil 3 m høy dagskjæring med retning 220°. Kun svak disseminasjon av pyritt og magnetkis ble påvist i relativt massiv, finkornet grønnstein. Tippvolumet utgjør ca. 100 m3. |
Fieldsamples |
| Sample No. | Sample type | Miscellanrous | ||||
| JS-T2103 | Dump |
|
| NB! All analyse values are shown at the end of the printout.: |
Analyse Results |
| from |
| Deposit Area 1601 - 007 Ålbugruva |
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# |
| JS-T2101 | Bedrock | 60300 | 248 | 20 | 531 | 155 | 50.6 | 204.0 |
| JS-T2102 | Bedrock | 7990 | 117 | 12 | 593 | 28 | 8.8 | 230.0 |
| JS-T2103 | Dump | 7280 | 189 | 28 | 149 | 124 | 3.8 | 6.0 |
| ------------------ |
| Sample No. | Pt# | Pd# | As* | Cd* | Ba* | Mo* | Sn* | Sb* | Bi* |
| JS-T2101 | 12.0 | 3.0 | 4 | 6.8 | 30 | 1.62 | 1 | 2 | 1 |
| JS-T2102 | 12.0 | 15.0 | 20 | 1.2 | 250 | 50.60 | 1 | 1 | 0 |
| JS-T2103 | -5.0 | -1.0 | 2 | 1.0 | 10 | 0.27 | 1 | -0 | 0 |
| ------------------ |
| Sample No. | Se* | Ga* | Ge* | In* | S% | V* | Cr* | Mn* | Fe% |
| JS-T2101 | 48.00 | 18.40 | 0.58 | 8.45 | 5.37 | 238 | 60 | 1580 | 17.90 |
| JS-T2102 | 46.00 | 14.40 | 0.47 | 0.15 | 10.95 | 239 | 39 | 1250 | 20.70 |
| JS-T2103 | 15.00 | 17.45 | 0.23 | 0.09 | 2.83 | 300 | 354 | 3480 | 16.75 |
| ------------------ |
| Sample No. | Th* | U* | W* | Rb* | Sr* | Y* | Zr* | Nb* | Ta* |
| JS-T2101 | 2.51 | 2.20 | 0 | 3.0 | 405.0 | 32.1 | 12 | 0.60 | 0.12 |
| JS-T2102 | 5.63 | 10.00 | 0 | 31.4 | 253.0 | 40.9 | 26 | 1.30 | 0.14 |
| JS-T2103 | 0.20 | 0.70 | 0 | 0.6 | 138.5 | 24.0 | 9 | 0.70 | 0.07 |
| ------------------ |
| Sample No. | Cs* | La* | Ce* | Li* | Be* | P* | Sc* | Te* | Hf* |
| JS-T2101 | 0.46 | 15.80 | 26.50 | 8 | 0 | 880 | 13.40 | 2.37 | 0.30 |
| JS-T2102 | 4.81 | 27.10 | 45.80 | 20 | 1 | 1700 | 9.80 | 1.35 | 0.70 |
| JS-T2103 | -0.05 | 2.40 | 7.93 | 10 | 1 | 490 | 36.20 | 0.10 | 0.40 |
| ------------------ |
| Sample No. | Re* | Tl* | |||||||
| JS-T2101 | 3 | 0 | |||||||
| JS-T2102 | 98 | 0 | |||||||
| JS-T2103 | 2 | 0 |
| 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 |