(Last updated: 15.04.2024)
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Norsk versjon | ||||
| THE ???? DATABASE | |||||
| Occurence 0 - 000 FEIL | |||||
| (Object Id: ) (Last updated: 15.04.2024) |
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| Location |
| County: | Municipality: | Mangler () |
| Map 1:50000: | Smøla (1321-1) | Map 1:250000: | Kristiansund |
| Coordinate system: | UTM-Zone 33 - EUREF89/WGS84 |
| East: | 450610 m. | North: | 7025960 m. |
| Longitude: | 8.0128600 | Latitude: | 63.3573740 |
| Show on map |
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| Resource |
| Resource Type: | Ferrous metals(Fe, Mn, Ti) | Resource Subtype: | Iron | |
| Element(s): | Fe Cu Kis |
| Importance |
| Raw material meaning: | Little Importance (reg. 18.02.2015) |
| Resources and production |
| Activity: | Test mining | Reserves: | ||
| Operating method: | Underground mining | Historical production: |
Mineralization |
| Era: | Paleozoic | Period: | Ordovician | |
| Genesis: | Replacement/Metasomatism | Form: | Irregular | |
| Main texture: | Structureless | Min. distribution: | Semi-massive (20-50 % ore minerals) |
| Main grain size: | Fine grained (< 1 mm) | Main alteration: | Skarn formation |
| Strike/Dip: | Direction: | |||
| Plunge: |
| Stratigraphic classification of host rock |
| Era: | Paleozoic | Period: | Ordovician |
| Province: | ||
| Geotec.unit: | ||
| Tectonic complex: | ||
| Igneous complex: |
| Group: | Formation: | Skjølbergformasjonen |
Mineralogy |
| Relationship | Mineral | Amount | |
| Gangue mineral | Garnet | Major mineral (>10%) | |
| Gangue mineral | Epidote | Major mineral (>10%) | |
| Ore mineral | Pyrrhotite | Major mineral (>10%) | |
| Ore mineral | Pyrite | Subordinate mineral (1-10%) | |
| Ore mineral | Chalcopyrite | Subordinate mineral (1-10%) | |
| Ore mineral | Molybdenite | Accessory mineral (<1%) |
Lithology: |
| Relationship | Rock | Origin | |
| Host rock | granat-epidot skarn | Sedimentary Original rock :Limestone |
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| Metamorphic facies :Contact | |||
| Wall rock | hornblendedioritt | Intrusive Original rock :Diorite |
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| Wall rock | doleritt | Intrusive Original rock :Dolerite |
Information(s) in free text format |
| Free text |
| Maurdalsgruva ligger 200 m NNV for Nygruva ved østenden av Bollvatnet. Gruva består av et 18 m langt (N-S) dagbrudd som fortsetter ned ned skråsjakt med fall mot øst. I heng finnes porfyrisk dioritt/doleritt. Under denne ca. 1m mektig granat-epidot skarn med lokalt svak svovelkis+ kobberkis mineralisering. Deretter følger malmsonen (0.5-1.5 m mektig) med massiv cpy og po/massiv po/po i granat-epidot skarn. Under denne igjen 4 m mektig tilnærmet umineralisert skarn som grenser mot dioritt. |
Bibliography: |
| From NGU's Reference Archive: |
| Gautneb, H. , 1988 |
| Structure, age and formation of dykes on the island of Smøla, Central Norway |
| ;Norsk geologisk forening;TIDSSKRIFTARTIKKEL;Norsk geologisk tidsskrift; No.68 (4);275-288 pages |
| Abstract: | |
| On the island of Smøla, five different dyke phases area represented in an Ordovician, mature ensialic arc complex. With decreasing relative age these are: granitic dykes and net-veins, composite dykes, porphyritic microdiorite dykes, dolerite dykes and granophyre dykes. The granophyres have been dated by the Rb/Sr whole-rock method and yilded a 9 point isochron of 428 ± 10Ma with an initial ratio of 0.70480 ± 0.0003 and MSWD = 2.0. From the aspect ratios of the dykes a model is proposed which suggests that the dykes were formed with a magmatic overpressure of less than 90 MPa. This indicates that the source of magma was at a maximum depht of 36 km for the basic dykes and up to 15 km for the granophyres. Theoretical results indicate that a 2 m wide dolerite dyke in the Smøla area solidified within less than about 70 days and a 10 m wide dolerite dyke in the Smøla area solidified within less than about 70 days abd a 10 m wide granophyre within around 5 years. Emplacement of the dyke swarms resulted in about 35% crustal extension. |
| Gautneb, Håvard , 1987 |
| Høy-K dioritter og assosierte bergarter på sydlige Smøla Arkipel, Møre og Romsdal. |
| ;UiB Geologisk inst. Avd. A;AVHANDLING |
| Gautneb, Håvard; Roberts, David , 1989 |
| Geology and petrochemistry of the Smøla-Hitra Batholith, Central Norway. |
| ;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL;NGU Bulletin; No.416;1-24 pages |
| Abstract: | |
| The plutonic rocks which compose the Smøla-Hitra Batholith (SHB) cover an exposed area of c.1000 km² and intrude folded, Arenig-Llanvirn, low-grade meta-sedimentary and bimodal metavolcanic rocks and higher-grade polydeformed gneisses of probable Proterozoic age. The SHB is unconformably overlain by Old Red Sandstone sediments of possible Late Silurian to definite Middle Devonian age. Field relations demonstrate that the oldest rock-types in the batholith comprise gabbro, monzodiorite and hornblende diorite. These are succeeded by tonalite, granodiorite and granite, which occur both as plutons and as abundant dykes and veins. Later members of the SHB include composite dykes, porphyritic microdiorite, appinitic pipe-like bodies, dolerite dykes and lastly, granophyre dykes. The hypabyssal rocks post-date a phase of weak, heterogeneous deformation manifested locally within the various plutons. Pressure estimates from hornblende compositions indicate a pressure of solidification of 0.26 +-0.1 GPa, corresponding to a depth of about 9 km. Preliminary isotopic dating has indicated an age range from c. 450 to c. 428 MA; latest Mid-Ordovician to Early Silurian. The rocks of the SHB show little sign of the Scandian deformation and metamorphism which are so common elsewhere in this part of Norway. |
| Aasgaard, Gunnar , 1951 |
| Malmforekomster på Smøla. |
| ;Norges geologiske undersøkelse;FAGRAPPORT;Bergarkivet; No.BA 4449;3 pages |
| Abstract: | |
| Rapporten beskriver en 3-dagers befaring av Maurdal-Nøsthaugen- og Strømmen gruver på Smøla. Mineraliseringen forekommer i hovedsak som magnetitt med noe svovel- og kobberkis. SP-målinger ved Maurdals gruver indikerer at det gjennstår malm på dypet. |
| Aasgaard, Gunnar , 1951 |
| Malmforekomster på Smøla. |
| ;Norges geologiske undersøkelse;FAGRAPPORT;Bergarkivet; No.BA 1690;3 pages |
| Abstract: | |
| Rapporten beskriver befaringer av malmforekomster på Smøla. Det blir konkludert med ønske om videre undersøkelser. |
| Lie, Ragnar Orten ; Tuddenham, David Berg , 2009 |
| Smølens kobberverk - "Den rikeste og største kobberåre i verden" |
| ;NTNU Vitenskapsmuseet, seksjon for arkeologi og kulturhistorie;ARTIKKEL;Spor; No.24 (1);42-45 pages |
| Abstract: | |
| Dagens globale finanskrise er et resultat av en amerikansk finanskrise, og den har mange likhetstrekk med en av de første kjente børsboblene - The Sout Sea Bubble. Denne engelske finansboblen sprakk på 1720-tallet og hadde også langtrekkende konsekvenser. Et eksempel er Smølens kobberverk, som både ble skapt og gikk under som resultat av børsboblen. Slik sett er restene etter Smølens kobberverk ikke bare et spennende industrielt kulturminne, men også et minnesmerke over en av de tidligste børsboblene vi kjenner. |
Fieldsamples |
| Sample No. | Sample type | Miscellanrous | ||||
| MR0074.01 | Dump |
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| MR0074.02 | Dump |
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| MR0074.03 | Dump |
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| NB! All analyse values are shown at the end of the printout.: |
| The fact sheet was created on 06.05.2024 |
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