Norsk versjon
THE INDUSTRIAL MINERAL DATABASE
Deposit Area 1201 - 303
(Last updated 27.nov.2006)

Name of Deposit Area : Trengereiddalen
(Object Id : 1201,303,00,00)

Location
County : Hordaland (12) Municipality : Bergen (1201)
Map 1:50000: Bruvik (1215-4) Map 1:250000: Bergen
Marking point: Longitude: 5.6314130 Latitude: 60.4209680
EU89-UTM Zone 32 (Coordinates IS confirmed)
X-coord: 314554 m. Y-coord: 6703037 m.

Commodity
Main Type: Carbonates Sub Type: Limestone

Production
Activity: Mining Reserves:
Prod. method: Underground mining Production:
Prod. status: Disused, closed Volume of dump:

Importance
Public: Little Importance (reg. 18.02.2015)
Economical: Minor interest , (Confirmed 28.aug.2006 by Havard Gautneb)

Mineralization
Era: Period:
Dating: Method:
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 1201 - 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 19.05.2024

Questions or comments regarding the fact sheet can be emailed to:
ressursdatabaser@ngu.no
Copyright © 2024 Geological Survey of Norway