Norsk versjon | |||||
THE ORE DATABASE | |||||
Deposit Area 1617 - 010 | |||||
(Last updated 14.apr.2020) |
Name of Deposit Area : Hofstadmyra |
(Object Id : 1617,010,00,00) |
Location |
County : | Sør-Trøndelag (16) | Municipality : | Hitra (1617) |
Map 1:50000: | Sør-Frøya (1422-3) | Map 1:250000: | Kristiansund |
Marking point: | Longitude: | 8.6704030 | Latitude: | 63.5743650 |
EU89-UTM Zone 32 | (Coordinates IS confirmed) |
X-coord: | 483633 m. | Y-coord: | 7049628 m. |
|
Commodity |
Main Type: | Ferrous metals(Fe, Mn, Ti) | Sub Type: | Iron | |
Element(s): | Fe Kis |
Production |
Activity: | Pitting | Reserves: | ||
Prod. method: | Production: | |||
Prod. status: | Volume of dump: | 3 m3 |
Importance |
Public: | Not Assessed (reg. 18.02.2015) |
Economical: | Minor interest , (Confirmed 14.apr.2020 by Jan Sverre Sandstad) |
Mineralization |
Era: | Paleozoic | Period: | Ordovician | |
Dating: | Method: | |||
Genesis: | Volcex | Form: | ||
Main texture: | Banded | Min. distribution: | Semi-massive (20-50 % ore minerals) |
Main grain size: | Fine grained (< 1 mm) | Main alteration: |
Strike/Dip: | Direction: | |||
Plunge: |
Stratigraphic classification of host rock |
Era: | Paleozoic | Period: | Ordovician |
Province: | ||
Geotec.unit: | ||
Tectonic complex: | ||
Igneous complex: |
Group: | Formation: |
Mineralogy |
Relationship | Mineral | Amount | |
Gangue mineral | Plagioclase | Major mineral (>10%) | |
Gangue mineral | Pyroxene | Subordinate mineral (1-10%) | |
Ore mineral | Magnetite | Major mineral (>10%) | |
Ore mineral | Pyrite | Subordinate mineral (1-10%) |
Lithology: |
Relationship | Rock | Origin | |
Wall rock | hornblendegneis | Extrusive Original rock :Basalt |
|
Metamorphic facies :Amphibolite |
Information(s) in free text format |
Free text |
Mindre (3x4 m), men relativt dyp vannfyllt synk nær et veikryss. Liknende mineralisering som Skipnesskaget, men lite informasjon fra dette skjerpet. |
Fieldsamples |
Sample No. | Sample type | Miscellanrous | ||||
ST0305.01 | Dump |
|
NB! All analyse values are shown at the end of the printout.: |
Analyse Results |
from |
Deposit Area 1617 - 010 Hofstadmyra |
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# |
ST0305.01 | Dump | 712 | 55 | 10 | 156 | 37 | -.2 | 2.0 |
------------------ |
Sample No. | Pt# | Pd# | As* | Cd* | Ba* | Mo* | Sn* | Sb* | Bi* |
ST0305.01 | -5.0 | -1.0 | 35 | -1.0 | 5 | 3.00 | -20 | -5 | 10 |
------------------ |
Sample No. | V* | Cr* | Mn* | Fe% | W* | Sr* | La* | Na* | Mg* |
ST0305.01 | 116 | 136 | 404 | 10.00 | -20 | 63.0 | 39.00 | 0 | 0 |
------------------ |
Sample No. | Al* | K * | Ca* | Te* | |||||
ST0305.01 | 1 | 0 | 1 | -10.00 |
The fact sheet was created on 19.05.2024 |
Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
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