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THE INDUSTRIAL MINERAL DATABASE
Occurence 4601 - 303 Trengereiddalen
(Object Id: 16838)
(Last updated: 27.11.2006)

Location
County: Vestland Municipality: Bergen (4601)
Map 1:50000: Bruvik (1215-4) Map 1:250000: Bergen
Coordinate system: EU89-UTM Zone 32
East: 314554 m. North: 6703037 m.
Longitude: 5.6314130 Latitude: 60.4209680
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Resource
Resource Type: Carbonates Resource Subtype: Limestone

Importance
Raw material meaning: Little Importance (reg. 18.02.2015)

Resources and production
Activity: Mining Reserves:
Operating method: Underground mining Historical production:


Mineralization
Genesis: Form:
Main texture: Min. distribution:
Main grain size:
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
Forekomsten sees som en tunnel som går inn i fjellet på østsiden av Trengereid dalen. Sannsynligvis en del av driften ved risnes gruver. Kalken er båndet grålig og ganske mye oppblandet med silikater. Den er sterk uregelmessig foldet. Forekomsten ble ikke befart under jord så det er ikke sikkert om det er forbindelse med Risnes gruver på andre siden av dalen. Kjemisk analyse vier at kalken har et CaO go MgO innhold på 46.73 og 00.67%. Dette tilsvarer et kalkspatinnhold på ca. 81%

Fieldsamples
Sample No. Sample type Miscellanrous
HO-6-06 Bedrock
Sampler: Håvard Gautneb
Comment: Representative sample from the deposit
No. of registrated CaOMgO analyses = 1
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 4601 - 303 Trengereiddalen

Analysis of acid soluble CaO and Mgo
Analyzed values Derived values
Sample No. Sample Type Acid soluble CaO Acid soluble MgO Dolomite Calcite Unsolved
HO-6-06 Bedrock 46.73% .67% 3.06% 81.74% 15.20%

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* As*
HO-6-06 Bedrock 2 12 -2 2 5 -4.0 -4
------------------
Sample No. Cd* Ba* Mo* V* Cr* Mn* Sr* Y* Zr*
HO-6-06 -.2 2 1.33 3 3 632 153.0 3.0 -2
------------------
Sample No. La* Ce* B* Li* Be* Na* Mg* Al* Si*
HO-6-06 -2.00 -4.00 -10 4 -0 -400 4060 2170 203
------------------
Sample No. P* K * Ca* Sc* Ti*
HO-6-06 168 -200 ###### 2.08 85

Oxide analyses

( All values are in % )
Sample No. Sample Type SiO2 Al2O3 TiO2 Fe2O3 MnO MgO CaO
HO-6-06 Bedrock 3.79 1.86 0.11 1.09 0.10 0.78 50.67
------------------
Sample No. Na2O K2O P2O5 Sum
HO-6-06 0.18 0.12 -0.01 59.00


The fact sheet was created on 29.03.2024

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