Norsk versjon | |||||
THE ORE DATABASE | |||||
Deposit Area 1833 - 092 | |||||
(Last updated 25.feb.2005) |
Name of Deposit Area : Langvatn |
(Object Id : 1833,092,00,00) |
Location |
County : | Nordland (18) | Municipality : | Rana (1833) |
Map 1:50000: | Mo i Rana (1927-1) | Map 1:250000: | Mo i Rana |
Marking point: | Longitude: | 14.1742430 | Latitude: | 66.3812270 |
EU89-UTM Zone 33 | (Coordinates IS confirmed) |
X-coord: | 463082 m. | Y-coord: | 7362647 m. |
|
Commodity |
Main Type: | Ferrous metals(Fe, Mn, Ti) | Sub Type: | Iron | |
Element(s): | Fe |
Production |
Activity: | Test mining | Reserves: | ||
Prod. method: | Open pit and underground mining | Production: | 1 thousand tons | |
Prod. status: | Disused, closed | Volume of dump: | 200 m3 |
Importance |
Public: | Little Importance (reg. 18.02.2015) |
Economical: | Minor interest , (Confirmed 25.feb.2005 by Agnes Raaness) |
Products |
Element/product | Crude ore grade or quality | |
FE | 40 % |
Operations |
From - To | Activity | Comments | |
1801 - 1891 | Test mining | Company/Institution :Mostadmarken jernverk i Trøndelag | |
1962 - 1962 | Geophysics | Company/Institution :NGU | |
1965 - 1967 | Geology | Company/Institution :Rana Gruber | |
1980 - 1980 | Geology | Company/Institution :Rana Gruber |
Mineralization |
Era: | Proterozoic | Period: | Neoproterozoic | |
Dating: | Method: | |||
Genesis: | Sedex | Form: | Layer | |
Main texture: | Banded | Min. distribution: | Massive (>50 % ore minerals) |
Main grain size: | Medium grained (1-3 mm) | Main alteration: |
Strike/Dip: | 300 / 15 | Direction: | 90 | |
Plunge: | 10 |
Stratigraphic classification of host rock |
Era: | Proterozoic | Period: | Neoproterozoic |
Province: | Caledonides | |
Geotec.unit: | Rødingsfjell Nappe Complex | |
Tectonic complex: | Midtre allokton | |
Igneous complex: |
Group: | Ørtfjell | Formation: | Dunderland |
Mineralogy |
Relationship | Mineral | Amount | |
Gangue mineral | Quartz | Major mineral (>10%) | |
Gangue mineral | Apatite | Subordinate mineral (1-10%) | |
Gangue mineral | Calcite | Subordinate mineral (1-10%) | |
Gangue mineral | Epidote | Subordinate mineral (1-10%) | |
Gangue mineral | Amphibole | Subordinate mineral (1-10%) | |
Ore mineral | Hematite | Major mineral (>10%) | |
Ore mineral | Magnetite | Subordinate mineral (1-10%) |
Lithology: |
Relationship | Rock | Origin | |
Unknown | Lys glimmerskifer | Sedimentary Original rock :Greywacke |
|
Metamorphic facies :Amphibolite | |||
Unknown | Amfibolitt | Extrusive Original rock :Basalt |
|
Metamorphic facies :Amphibolite | |||
Unknown | Kalkspat-marmor | Sedimentary Original rock :Limestone |
|
Metamorphic facies :Amphibolite |
Structures |
Location: | Type: | Orientation(360 gr.): | Relation to min.: | |
Unknown | Primary layering | Strike/Dip :300 / 15 | Syn-mineralisation ;...Effect :None |
Information(s) in free text format |
Free text |
Langvatn mt.-hem.-malm De viktigste malmsteder er: M.o.h. UTM-øst-nord Langvatn øvre malmlag 125 4 63 200 - 73 63 050 ----------"---------- 230 4 62 775 - 73 63 150 ----------"---------- 330 4 62 300 - 73 63 250 ----------"---------- 390 4 61 700 - 73 63 450 Langvatn nedre malmlag 50 4 63 150 - 73 62 850 -----------"---------- 100 4 62 800 - 73 62 900 -----------"---------- 260 4 62 150 - 73 63 100 -----------"---------- 300 4 61 750 - 73 63 200 -----------"---------- 325 4 61 500 - 73 63 300 Langvatn nedre malmlag 335 4 61 250 - 73 63 600 -----------"---------- 365 4 60 850 - 73 63 700 Da malmlagene har flatt fall inn mot en steil fjellside, er de lite brytbare i dagbrudd. Malm-tykkelsen er også ujevn 2-4 m,opptil 6 m nede ved Langvatn, bilveiskjæring. I malmhengen finner man stedvis granatfels. Tonnasjen er: Tykkelse Lengde Dyp Tonn (sp.v. 3.5) Langvatn øvre malmlag 3.3 m 1 600 m 40 m 0.74 mill.tonn Langvatn nedre malmlag 2-4 m(3m) 2 500 m 40 m 1.05 mill.tonn Langvatn-malmen er vanligvis kornet hematitt. Malmen har sammensetning (vekt %): 55.7 % hematitt (kornet) 3.3 % magnetitt 24.0 % kvarts 1.0 % oligoklas 1.0 % biotitt 1.0 % muskovitt 1.5 % kloritt 3.0 % hornblende 4.0 % epidot 0.1 % granat 4.0 % kalkspat/dolo. 1.35 % apatitt 0.009 % svovelkis Av erts er(3.3 x 100):(55.7 + 3.3)= 5.6 % magnetitt og 55.7 x 100 :(55.7 + 3.3)= 94.4 % hematitt og forholdet (hematitt) : (magnetitt) = (94.4) : (5.6) = 16.86 Malmen er overveiende en kornet hematitt (0.1-1.5mm hematittkorn) 10 prøver er analysert ved Norsk Jernverk 1980 og viser følgende: Fe tot. Fe magn. MnO TiO2 P S 46.2% 1.6% 0.26% 0.23% 0.19% 0.008% 27.2% 1.1% 0.13% 0.60% 0.11% 0.006% 42.5% 3.5% 0.27% 0.23% 0.19% 0.004% 39.9% 4.6% 0.40% 0.60% 0.51% 0.004% 34.5% 3.1% 0.40% 0.05% 0.10% 0.004% 51.7% 0.3% 0.11% 0.03% 0.20% 0.003% 44.7% 1.6% 0.31% 0.04% 0.21% 0.004% 45.9% 4.0% 0.26% 0.31% 0.56% 0.004% 49.9% 3.8% 0.59% 0.05% 0.28% 0.009% 36.8% 20.6% 0.38% 0.22% 0.20% 0.006% Aritmetrisk middel: 41.9% 2.4% 0.31% 0.24% 0.25% 0.005% |
Fieldsamples |
Sample No. | Sample type | Miscellanrous | ||||
NO0679.01 | Bedrock |
|
||||
NO0679.02 | Bedrock |
|
NB! All analyse values are shown at the end of the printout.: |
Name of Sample point : Prøvepunkt 1 |
(Object Id : 1833,092,00,01) |
Location |
County : | Nordland (18) | Municipality : | Rana (1833) |
Map 1:50000: | Mo i Rana (1927-1) | Map 1:250000: | Mo i Rana |
Marking point: | Longitude: | 14.1753020 | Latitude: | 66.3830270 |
EU89-UTM Zone 33 | (Coordinates IS confirmed) |
X-coord: | 463132 m. | Y-coord: | 7362847 m. |
|
Commodity |
Main Type: | Ferrous metals(Fe, Mn, Ti) | Sub Type: | Iron | |
Element(s): | Fe |
Fieldsamples |
Sample No. | Sample type | Miscellanrous | ||||
NO0679.03 | Bedrock |
|
NB! All analyse values are shown at the end of the printout.: |
Name of Locality : Øvre malmlag (I) |
(Object Id : 1833,092,01,00) |
Location |
County : | Nordland (18) | Municipality : | Rana (1833) |
Map 1:50000: | Mo i Rana (1927-1) | Map 1:250000: | Mo i Rana |
Marking point: | Longitude: | 14.1753020 | Latitude: | 66.3830270 |
EU89-UTM Zone 33 | (Coordinates IS confirmed) |
X-coord: | 463132 m. | Y-coord: | 7362847 m. |
|
Commodity |
Main Type: | Ferrous metals(Fe, Mn, Ti) | Sub Type: | Iron | |
Element(s): | Fe |
Production |
Activity: | Exploration | Reserves: | ||
Prod. method: | Production: | |||
Prod. status: | Volume of dump: |
Name of Locality : Øvre malmlag (2) |
(Object Id : 1833,092,02,00) |
Location |
County : | Nordland (18) | Municipality : | Rana (1833) |
Map 1:50000: | Mo i Rana (1927-1) | Map 1:250000: | Mo i Rana |
Marking point: | Longitude: | 14.1657670 | Latitude: | 66.3838730 |
EU89-UTM Zone 33 | (Coordinates IS confirmed) |
X-coord: | 462707 m. | Y-coord: | 7362947 m. |
|
Commodity |
Main Type: | Ferrous metals(Fe, Mn, Ti) | Sub Type: | Iron | |
Element(s): | Fe |
Production |
Activity: | Exploration | Reserves: | ||
Prod. method: | Production: | |||
Prod. status: | Volume of dump: |
Name of Locality : Øvre malmlag (3) |
(Object Id : 1833,092,03,00) |
Location |
County : | Nordland (18) | Municipality : | Rana (1833) |
Map 1:50000: | Mo i Rana (1927-1) | Map 1:250000: | Mo i Rana |
Marking point: | Longitude: | 14.1551120 | Latitude: | 66.3847130 |
EU89-UTM Zone 33 | (Coordinates IS confirmed) |
X-coord: | 462232 m. | Y-coord: | 7363047 m. |
|
Commodity |
Main Type: | Ferrous metals(Fe, Mn, Ti) | Sub Type: | Iron | |
Element(s): | Fe |
Production |
Activity: | Exploration | Reserves: | ||
Prod. method: | Production: | |||
Prod. status: | Volume of dump: |
Name of Locality : Øvre malmlag (4) |
(Object Id : 1833,092,04,00) |
Location |
County : | Nordland (18) | Municipality : | Rana (1833) |
Map 1:50000: | Mo i Rana (1927-1) | Map 1:250000: | Mo i Rana |
Marking point: | Longitude: | 14.1416300 | Latitude: | 66.3864340 |
EU89-UTM Zone 33 | (Coordinates IS confirmed) |
X-coord: | 461632 m. | Y-coord: | 7363247 m. |
|
Commodity |
Main Type: | Ferrous metals(Fe, Mn, Ti) | Sub Type: | Iron | |
Element(s): | Fe |
Production |
Activity: | Exploration | Reserves: | ||
Prod. method: | Production: | |||
Prod. status: | Volume of dump: |
Name of Locality : Nedre malmlag (1) |
(Object Id : 1833,092,05,00) |
Location |
County : | Nordland (18) | Municipality : | Rana (1833) |
Map 1:50000: | Mo i Rana (1927-1) | Map 1:250000: | Mo i Rana |
Marking point: | Longitude: | 14.1664000 | Latitude: | 66.3816340 |
EU89-UTM Zone 33 | (Coordinates IS confirmed) |
X-coord: | 462732 m. | Y-coord: | 7362697 m. |
|
Commodity |
Main Type: | Ferrous metals(Fe, Mn, Ti) | Sub Type: | Iron | |
Element(s): | Fe |
Production |
Activity: | Exploration | Reserves: | ||
Prod. method: | Production: | |||
Prod. status: | Volume of dump: |
Name of Locality : Nedre malmlag (2) |
(Object Id : 1833,092,06,00) |
Location |
County : | Nordland (18) | Municipality : | Rana (1833) |
Map 1:50000: | Mo i Rana (1927-1) | Map 1:250000: | Mo i Rana |
Marking point: | Longitude: | 14.1518030 | Latitude: | 66.3833490 |
EU89-UTM Zone 33 | (Coordinates IS confirmed) |
X-coord: | 462082 m. | Y-coord: | 7362897 m. |
|
Commodity |
Main Type: | Ferrous metals(Fe, Mn, Ti) | Sub Type: | Iron | |
Element(s): | Fe |
Production |
Activity: | Exploration | Reserves: | ||
Prod. method: | Production: | |||
Prod. status: | Volume of dump: |
Name of Locality : Nedre malmlag (3) |
(Object Id : 1833,092,07,00) |
Location |
County : | Nordland (18) | Municipality : | Rana (1833) |
Map 1:50000: | Mo i Rana (1927-1) | Map 1:250000: | Mo i Rana |
Marking point: | Longitude: | 14.1428250 | Latitude: | 66.3841970 |
EU89-UTM Zone 33 | (Coordinates IS confirmed) |
X-coord: | 461682 m. | Y-coord: | 7362997 m. |
|
Commodity |
Main Type: | Ferrous metals(Fe, Mn, Ti) | Sub Type: | Iron | |
Element(s): | Fe |
Production |
Activity: | Exploration | Reserves: | ||
Prod. method: | Production: | |||
Prod. status: | Volume of dump: |
Name of Locality : Nedre malmlag (4) |
(Object Id : 1833,092,08,00) |
Location |
County : | Nordland (18) | Municipality : | Rana (1833) |
Map 1:50000: | Mo i Rana (1927-1) | Map 1:250000: | Mo i Rana |
Marking point: | Longitude: | 14.1372030 | Latitude: | 66.3850640 |
EU89-UTM Zone 33 | (Coordinates IS confirmed) |
X-coord: | 461432 m. | Y-coord: | 7363097 m. |
|
Commodity |
Main Type: | Ferrous metals(Fe, Mn, Ti) | Sub Type: | Iron | |
Element(s): | Fe |
Production |
Activity: | Exploration | Reserves: | ||
Prod. method: | Production: | |||
Prod. status: | Volume of dump: |
Name of Locality : Nedre malmlag (5) |
(Object Id : 1833,092,09,00) |
Location |
County : | Nordland (18) | Municipality : | Rana (1833) |
Map 1:50000: | Mo i Rana (1927-1) | Map 1:250000: | Mo i Rana |
Marking point: | Longitude: | 14.1315170 | Latitude: | 66.3877240 |
EU89-UTM Zone 33 | (Coordinates IS confirmed) |
X-coord: | 461182 m. | Y-coord: | 7363397 m. |
|
Commodity |
Main Type: | Ferrous metals(Fe, Mn, Ti) | Sub Type: | Iron | |
Element(s): | Fe |
Production |
Activity: | Exploration | Reserves: | ||
Prod. method: | Production: | |||
Prod. status: | Volume of dump: |
Name of Locality : Nedre malmlag (6) |
(Object Id : 1833,092,10,00) |
Location |
County : | Nordland (18) | Municipality : | Rana (1833) |
Map 1:50000: | Mo i Rana (1927-1) | Map 1:250000: | Mo i Rana |
Marking point: | Longitude: | 14.1225380 | Latitude: | 66.3885700 |
EU89-UTM Zone 33 | (Coordinates IS confirmed) |
X-coord: | 460782 m. | Y-coord: | 7363497 m. |
|
Commodity |
Main Type: | Ferrous metals(Fe, Mn, Ti) | Sub Type: | Iron | |
Element(s): | Fe |
Production |
Activity: | Exploration | Reserves: | ||
Prod. method: | Production: | |||
Prod. status: | Volume of dump: |
Analyse Results |
from |
Deposit Area 1833 - 092 Langvatn |
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# |
NO0679.01 | Bedrock | 13 | 11 | -3 | 2 | 16 | -.3 | -2.0 |
NO0679.02 | Bedrock | 9 | 7 | -3 | -1 | 11 | -.3 | 4.0 |
NO0679.03 | Bedrock | 8 | 12 | -3 | -1 | 13 | -.3 | 2.0 |
------------------ |
Sample No. | Pt# | Pd# | Rh# | As* | Cd* | Ba* | Mo* | Sb* | Bi* |
NO0679.01 | -3.0 | -3.0 | -5.0 | 2 | 1.2 | 147 | 2.00 | -2 | 2 |
NO0679.02 | -3.0 | -3.0 | -5.0 | 3 | 1.4 | 57 | 2.00 | -2 | 4 |
NO0679.03 | -3.0 | -3.0 | -5.0 | -2 | 1.5 | 14 | 1.00 | -2 | 5 |
------------------ |
Sample No. | S% | V* | Cr* | Mn* | Fe% | Th* | U* | W* | Sr* |
NO0679.01 | -.01 | 21 | 12 | 2410 | 18.04 | -2.00 | -5.00 | -2 | 235.0 |
NO0679.02 | .09 | 15 | 10 | 991 | 20.78 | -2.00 | -5.00 | -2 | 149.0 |
NO0679.03 | -.01 | 32 | 13 | 1875 | 26.56 | 2.00 | -5.00 | -2 | 30.0 |
------------------ |
Sample No. | La* | B* | |||||||
NO0679.01 | 2.00 | -3 | |||||||
NO0679.02 | 1.00 | -3 | |||||||
NO0679.03 | 5.00 | -3 |
The fact sheet was created on 22.11.2024 |
Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
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