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THE ORE DATABASE
Deposit Area 1112 - 018
(Last updated 08.nov.2019)

Name of Deposit Area : Ollestad
(Object Id : 1112,018,00,00)

Location
County : Rogaland (11) Municipality : Lund (1112)
Map 1:50000: Ørsdalsvatnet (1312-3) Map 1:250000: Mandal
Marking point: Longitude: 6.3529080 Latitude: 58.5272230
EU89-UTM Zone 32 (Coordinates IS confirmed)
X-coord: 345863 m. Y-coord: 6490447 m.

Commodity
Main Type: Ferrous metals(Fe, Mn, Ti) Sub Type: Iron-Titanium
Element(s): Fe Ti

Importance
Public: Not Assessed (reg. 18.02.2015)
Economical: Not classified/evaluated

Operations
From - To Activity Comments
1999 - 2005 Geochemistry Company/Institution :NGU
XRF and mineral chemistry
2000 - 2004 Detail mapping Company/Institution :NGU/Henrik Schiellerup & Gurli Meyer
Detailed mapping and hand specimen sampling.

Mineralization
Era: Period:
Dating: Method:
Genesis: Form:
Main texture: Min. distribution:
Main grain size: Main alteration:
Strike/Dip: Direction:
Plunge:
Stratigraphic classification of host rock
Era: Period:
Province:
Geotec.unit:
Tectonic complex:
Igneous complex:
Group: Formation:

Information(s) in free text format
Free text
The profile at the Ollestad road (starting point and parking for a light track) was sampled along the road section in addition to scarce outcrops in the fields east of a relatively new cottage. The sequence is not continuously exposed, but close to the cottage a sequence of cm-dm-scale layered melanocratic gabbronorite was encountered. Both stratigraphically above and below this level the outcrops only display moderately layered leucogabbro. A shallow drill core was samples from this locality and the results from this sample will be accessible in this presentation by autumn 2006. Orientation of layering: approximately 160/80 west. In the area of Vasshus and Ollestad the thickness of MCUIVe zone has decreased slightly compared to the area of Bilstadvatnet and south of this sample section the geological unit gradually wedges out until the vanishing point at Heskestad 5 km further south. The total amount of apatite + ilmenite + magnetite has decreased with respect to Bilstadvatnet. A total of 8 samples represent a 270 m thick sequence of which the lower 180 m is of economic interest (25-31% norm value minerals). Norm calculations from XRF whole rock analyses gives an average of 10.6 % ilmenite, 7.1 % magnetite and 10.9 % apatite. The mineral composition of ilmenite and magnetite has been analysed by electron microprobe giving in average 1.12 % MgO in ilmenite and 0.93 % V2O3 in magnetite.

Photo(s) from the Deposit area:
Photo no. 1 showing Ollestad and Vasshus"

Name of Sample point : NH-179
(Object Id : 1112,018,00,01)

Location
County : Rogaland (11) Municipality : Lund (1112)
Map 1:50000: Ørsdalsvatnet (1312-3) Map 1:250000: Mandal
Marking point: (No coordinates)

Commodity
Main Type: Ferrous metals(Fe, Mn, Ti) Sub Type: Iron-Titanium
Element(s):


Fieldsamples
Sample No. Sample type Miscellanrous
NH-179 Bedrock
Sampler :Meyer , Schiellerup, Tegner
Comment :Apatite, ilmenite , magnetite ,gabbro-norite
No. of registrated element analyses = 1
No. of registrated oxide analyses = 1
NB! All analyse values are shown at the end of the printout.:

Name of Sample point : NH-176
(Object Id : 1112,018,00,02)

Location
County : Rogaland (11) Municipality : Lund (1112)
Map 1:50000: Ørsdalsvatnet (1312-3) Map 1:250000: Mandal
Marking point: (No coordinates)

Commodity
Main Type: Ferrous metals(Fe, Mn, Ti) Sub Type: Iron-Titanium
Element(s):


Fieldsamples
Sample No. Sample type Miscellanrous
NH-176 Bedrock
Sampler :Meyer , Schiellerup, Tegner
Comment :Apatite, ilmenite , magnetite ,gabbro-norite
No. of registrated element analyses = 1
No. of registrated oxide analyses = 1
NB! All analyse values are shown at the end of the printout.:

Name of Sample point : NH-180
(Object Id : 1112,018,00,03)

Location
County : Rogaland (11) Municipality : Lund (1112)
Map 1:50000: Ørsdalsvatnet (1312-3) Map 1:250000: Mandal
Marking point: (No coordinates)

Commodity
Main Type: Ferrous metals(Fe, Mn, Ti) Sub Type: Iron-Titanium
Element(s):


Fieldsamples
Sample No. Sample type Miscellanrous
NH-180 Bedrock
Sampler :Meyer , Schiellerup, Tegner
Comment :Apatite, ilmenite , magnetite ,gabbro-norite
No. of registrated element analyses = 1
No. of registrated oxide analyses = 1
NB! All analyse values are shown at the end of the printout.:

Name of Sample point : NH-181
(Object Id : 1112,018,00,04)

Location
County : Rogaland (11) Municipality : Lund (1112)
Map 1:50000: Ørsdalsvatnet (1312-3) Map 1:250000: Mandal
Marking point: (No coordinates)

Commodity
Main Type: Ferrous metals(Fe, Mn, Ti) Sub Type: Iron-Titanium
Element(s):


Fieldsamples
Sample No. Sample type Miscellanrous
NH-181 Bedrock
Sampler :Meyer , Schiellerup, Tegner
Comment :Apatite, ilmenite , magnetite ,gabbro-norite
No. of registrated element analyses = 1
No. of registrated oxide analyses = 1
NB! All analyse values are shown at the end of the printout.:

Name of Sample point : NH-182
(Object Id : 1112,018,00,05)

Location
County : Rogaland (11) Municipality : Lund (1112)
Map 1:50000: Ørsdalsvatnet (1312-3) Map 1:250000: Mandal
Marking point: (No coordinates)

Commodity
Main Type: Ferrous metals(Fe, Mn, Ti) Sub Type: Iron-Titanium
Element(s):


Fieldsamples
Sample No. Sample type Miscellanrous
NH-182 Bedrock
Sampler :Meyer , Schiellerup, Tegner
Comment :Apatite, ilmenite , magnetite ,gabbro-norite
No. of registrated element analyses = 1
No. of registrated oxide analyses = 1
NB! All analyse values are shown at the end of the printout.:

Name of Sample point : NH-183
(Object Id : 1112,018,00,06)

Location
County : Rogaland (11) Municipality : Lund (1112)
Map 1:50000: Ørsdalsvatnet (1312-3) Map 1:250000: Mandal
Marking point: (No coordinates)

Commodity
Main Type: Ferrous metals(Fe, Mn, Ti) Sub Type: Iron-Titanium
Element(s):


Fieldsamples
Sample No. Sample type Miscellanrous
NH-183 Bedrock
Sampler :Meyer , Schiellerup, Tegner
Comment :Apatite, ilmenite , magnetite ,gabbro-norite
No. of registrated element analyses = 1
No. of registrated oxide analyses = 1
NB! All analyse values are shown at the end of the printout.:


Analyse Results
from
Deposit Area 1112 - 018 Ollestad

Element analyses

( *=parts pr. million, #=parts pr.billion, Negative values means below detection limit value.)
Sample No. Sample Type Fe% P* Ti*
NH-176 Bedrock ###### 85705 74924
NH-179 Bedrock ###### 87996 ######
NH-180 Bedrock ###### ###### ######
NH-181 Bedrock ###### 88455 78428
NH-182 Bedrock ###### ###### 86271
NH-183 Bedrock ###### ###### 79429

Oxide analyses

( All values are in % )
Sample No. Sample Type SiO2 Al2O3 TiO2 Fe2O3 MnO MgO CaO
NH-176 Bedrock 42.09 12.53 4.49 15.96 0.14 6.70 9.48
NH-179 Bedrock 37.80 10.01 6.01 20.73 0.16 7.13 10.27
NH-180 Bedrock 34.87 8.85 6.21 20.88 0.16 7.64 11.52
NH-181 Bedrock 40.46 11.22 4.70 17.78 0.16 7.79 9.21
NH-182 Bedrock 41.01 12.81 5.17 17.63 0.14 6.91 10.31
NH-183 Bedrock 39.78 11.55 4.76 17.21 0.14 7.26 10.06
------------------
Sample No. Na2O K2O P2O5 Sum
NH-176 2.76 0.55 3.74 98.00
NH-179 2.13 0.37 3.84 98.00
NH-180 1.77 0.32 5.49 98.00
NH-181 2.35 0.45 3.86 98.00
NH-182 2.71 0.47 4.58 102.00
NH-183 2.44 0.47 4.38 98.00


The fact sheet was created on 17.05.2024

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