Norsk versjon | |||||
THE INDUSTRIAL MINERAL DATABASE | |||||
Occurence 3234 - 303 Kalvsjø | |||||
(Object Id: 8639) (Last updated: 13.02.2024) |
|
Location |
County: | Akershus | Municipality: | Lunner (3234) |
Map 1:50000: | Gran (1815-1) | Map 1:250000: | Hamar |
Coordinate system: | EU89-UTM Zone 32 |
East: | 587315 m. | North: | 6685039 m. |
Longitude: | 10.5794830 | Latitude: | 60.2925600 |
Show on map |
|
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: | Open pit mining | Historical production: |
Mineralization |
Era: | Paleozoic | Period: | Ordovician | |
Genesis: | Sedimentary/metamorphic | Form: | Layer | |
Main texture: | Banded | Min. distribution: | Massive (>50 % ore minerals) |
Main grain size: | Medium grained (1-3 mm) |
Strike/Dip: | Direction: | |||
Plunge: |
Stratigraphic classification of host rock |
Era: | Paleozoic | Period: | Ordovician |
Province: | Caledonides | |
Geotec.unit: | Os-Rø Nappe Complex | |
Tectonic complex: | ||
Igneous complex: |
Group: | Oslogruppen | Formation: | Kalvsjøformasjonen |
Information(s) in free text format |
Free text |
Bruddet ligger i enden av en sidevei, rett ved der den gamle riksveien går under jernbanen, Det har vært delt i 2 nivåer på et 80x100meter stort brudd. Bruddet er type lokaliteten for Kalvsjøformasjonen. Kalken er grålig og forholdsvis rein. Den inneholder en del fossiler som koraller og gastropoder. Øvre del av bruddet blir i dag bruk som fyllplass. Det er også blitt endel bebyggelse i nærheten slikt at det er tvilsomt om det er aktuelt med ny drift på dette sted. |
Historic |
Kalkovnene på Kalvsjø var en del av Lunner kalkverk sammen bl.a. Engen kalkverk. Lunner kalkverk var en av de største kalkleverandørene på Østlandet på 1950-tallet og leverte, men gikk konkurs i 1967. |
Photo(s) from the Deposit area: |
|
Bibliography: |
From NGU's Reference Archive: |
Owen, Alan W. , 1978 |
The Ordovician and Silurian stratigraphy of Central Hadeland, South Norway. |
;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL;NGU; No.338;1-23 + ka pages |
Abstract: | |
A lithostratigraphical terminology is applied to the Middle Caradoc to Upper Llandovery succession in Hadeland. There is a marked lateral facies change within the late Caradoc to Mid-Rawtheyan part of the sequence with the dominantly calcareous northern development interdigitating with the thicker, more argillaceous succession of the south. The surface expression of this change is heightened by major strike faults, many of which are high-angle reverse faults. |
Owen, Alan W. , 1982 |
The Upper Odovician of Hadeland. |
;ARTIKKEL; EKSKURSJONSGUIDE;Paleontological contributions from the University of Oslo; International Symposium on the Ordovici; No.279;144-147 pages |
Owen, Alan W.; Bruton, David L.; Bockelie, J. Fredrik; Bockelie, Tove G. , 1990 |
The Ordovician succession of the Oslo Region, Norway. |
;Norges geologiske undersøkelse;BOK;Special publication; No.4;1-54 pages |
Abstract: | |
The Ordovician successions of the Oslo Region are subdivided in terms of a modern lithostratigraphical scheme. Twenty-nine formations are defined; some of which are subdivided into stratigraphical or geographical members. Type localities (including hypostratotypes) are designated and many illu- strated by measured sections. Provisional correlations with the standard British and the Baltic chronostratigraphical schemes are made but highlight the lack of good bio- stratigraphical controls at several levels. The Tremadoc to Llanvirn litho- stratigraphy shows considerable uniformity over the Oslo Region but the remainder of the Ordovician shows some marked lithofacies contrasts between, and even within, districts. |
Fieldsamples |
Sample No. | Sample type | Miscellanrous | |||||
14-05 | Bedrock |
|
NB! All analyse values are shown at the end of the printout.: |
Analyse Results |
from |
Deposit Area 3234 - 303 Kalvsjø |
Analysis of acid soluble CaO and Mgo |
Analyzed values | Derived values |
Sample No. | Sample Type | Acid soluble CaO | Acid soluble MgO | Dolomite | Calcite | Unsolved |
14-05 | Bedrock | 48.69% | .52% | 2.38% | 85.61% | 12.01% |
Oxide analyses |
( All values are in % ) |
Sample No. | Sample Type | SiO2 | Al2O3 | TiO2 | Fe2O3 | MnO | MgO | CaO |
14-05 | Bedrock | 3.66 | 0.83 | 0.05 | 0.72 | 0.07 | 1.48 | 50.37 |
------------------ |
Sample No. | Na2O | K2O | P2O5 | Sum | |||||
14-05 | -0.10 | 0.27 | 0.03 | 57.00 |
The fact sheet was created on 29.03.2024 |
Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
Copyright © 2024 Geological Survey of Norway |