Norsk versjon | |||||
THE ORE DATABASE | |||||
Occurence 5058 - 012 Blankheia | |||||
(Object Id: 4553) (Last updated: 16.02.2005) |
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Location |
County: | Trøndelag | Municipality: | Åfjord (5058) |
Map 1:50000: | Åfjord (1622-4) | Map 1:250000: | Trondheim |
Coordinate system: | EU89-UTM Zone 32 |
East: | 577069 m. | North: | 7093872 m. |
Longitude: | 10.5737260 | Latitude: | 63.9632740 |
Show on map |
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Resource |
Resource Type: | Ferrous metals(Fe, Mn, Ti) | Resource Subtype: | Iron | |
Element(s): | Fe |
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 | |
1953 - 1953 | Geophysics | Company/Institution :Geofysisk malmleting |
Mineralization |
Genesis: | Volcex | Form: | Ruler | |
Main texture: | Banded | Min. distribution: | Massive (>50 % ore minerals) |
Main grain size: | Fine grained (< 1 mm) | Main alteration: |
Strike/Dip: | 320 / 40 | Direction: | ||
Plunge: |
Stratigraphic classification of host rock |
Era: | Proterozoic | Period: |
Province: | Caledonides | |
Geotec.unit: | Seve Nappe Complex | |
Tectonic complex: | ||
Igneous complex: |
Group: | Formation: |
Mineralogy |
Relationship | Mineral | Amount | |
Gangue mineral | Amphibole | Major mineral (>10%) | |
Gangue mineral | Quartz | Subordinate mineral (1-10%) | |
Ore mineral | Pyrite | Major mineral (>10%) | |
Ore mineral | Magnetite | Major mineral (>10%) | |
Ore mineral | Chalcopyrite | Accessory mineral (<1%) | |
Ore mineral | Pyrrhotite | Accessory mineral (<1%) |
Lithology: |
Relationship | Rock | Origin | |
Wall rock | Kvartskeratofyr | Extrusive Original rock :Tuff |
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Metamorphic facies :Greenschist | |||
Wall rock | Hornblendeskifer | Extrusive Original rock :Basalt |
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Metamorphic facies :Greenschist |
Structures |
Location: | Type: | Orientation(360 gr.): | Relation to min.: | |
Wall rock | Foliation | Strike/Dip :320 / 40 | Post-mineralisation ;...Effect :Modifies |
Information(s) in free text format |
Free text |
Det er ikke foretatt røsking på forekomsten, men en mutingsbolt ble funnet ved et lite tjern 300 m øst for Skjerivatnet. På en liten blotning opptrer en 10 cm mektig massiv magnetitt-mineralisering med smale bånd av svovel- kis (prøve 01 og 02) med kvartskeratofyr i ligg og hornblendeskifer i heng. 5 m over er det grovkornet hornblendegabbro (03). |
Fieldsamples |
Sample No. | Sample type | Miscellanrous | ||||
LS90042 | Bedrock |
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LS90043 | Bedrock |
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ST0358.01 | Bedrock |
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ST0358.02 | Bedrock |
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ST0358.03 | Bedrock |
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NB! All analyse values are shown at the end of the printout.: |
Analyse Results |
from |
Deposit Area 5058 - 012 Blankheia |
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# |
LS90042 | Bedrock | 184 | 41 | 13 | 4 | 2 | .5 | 143.0 |
LS90043 | Bedrock | 644 | 7 | 20 | 3 | 3 | 2.7 | 86.0 |
ST0358.01 | Bedrock | 142 | 82 | 4 | 21 | 35 | .2 | 8.0 |
ST0358.02 | Bedrock | 18 | 41 | 15 | 13 | 15 | .1 | 7.0 |
ST0358.03 | Bedrock | 16 | 13 | 2 | 18 | 116 | .1 | 2.0 |
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Sample No. | Pt# | Pd# | Rh# | As* | Cd* | Ba* | Mo* | Sb* | Bi* |
LS90042 | 1.0 | 4.0 | 2.0 | 4 | .4 | 28 | 257.00 | 2 | 2 |
LS90043 | 1.0 | 3.0 | 2.0 | 3 | .2 | 4 | 799.00 | 2 | 2 |
ST0358.01 | 9.0 | 12.0 | 2 | .2 | 5 | 5.00 | 2 | 2 | |
ST0358.02 | 5.0 | 15.0 | 2 | 1.2 | 2 | 3.00 | 2 | 2 | |
ST0358.03 | 12.0 | 6.0 | 2 | .2 | 4 | 1.00 | 2 | 2 |
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Sample No. | S% | V* | Cr* | Mn* | Fe% | Th* | U* | W* | Sr* |
LS90042 | .71 | 12 | 2 | 135 | 1.13 | 8.00 | 5.00 | 3 | 291.0 |
LS90043 | .17 | 2 | 3 | 23 | 1.08 | 1.00 | 5.00 | 4 | 7.0 |
ST0358.01 | 1.84 | 70 | 34 | 936 | 14.97 | 4.00 | 5.00 | 1 | 5.0 |
ST0358.02 | .01 | 64 | 58 | 505 | 29.65 | 4.00 | 5.00 | 1 | 1.0 |
ST0358.03 | .01 | 27 | 703 | 237 | 2.42 | 1.00 | 5.00 | 1 | 1.0 |
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Sample No. | La* | B* | |||||||
LS90042 | 6.00 | 3 | |||||||
LS90043 | 2.00 | 2 | |||||||
ST0358.01 | 7.00 | 2 | |||||||
ST0358.02 | 5.00 | 2 | |||||||
ST0358.03 | 2.00 | 2 |
The fact sheet was created on 05.05.2024 |
Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
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