Post on 27-Sep-2015
description
Peer-Richard Neeb & Rolv Dahl
Geological Survey of Norway
Baltic Inert Material Management Symposium Stockholm, 21-22nd November
Building material resources in Norway
Extraction and land-use planning
Mineral resources in Norway
industrial minerals (e.g. limestone, quartz, olivine and nepheline syenite)
natural stone(e.g. larvikite, granite and flagstone)
raw materials for construction (sand, gravel, crushed rock and clay)
metallic ores (iron, nickel and titanium oxide)
energy minerals (coal and peat)
The mining and quarrying industry comprises companies engaged in extracting and processing minerals and rocks from bedrock or superficial deposits.
Five categories of raw materials are distinguished:
Building materials
Norwegian mining and quarrying industry in 2010
1200 producers5500 employees
Building materialsHard-rock aggregates342 companies/1590 employees
Sand and gravel351 companies/500 employees
Natural stone94 companies/600 employees
Mineral raw materials in use
Road50 %
Concrete19 %
Other31 %
LegendPERMIAN ROCKS (OS LO REGION )(250 to 29 0 million year s)
CALEDO NIAN ROCKS(400 to 65 0 million year s)
PRECAM BRIAN ROCK S(BASEME NT)
IMPORTA NT NORWEG IANAGGREG ATE DEPOS ITSIN PRODU CTION
(600 to 29 00 million yea rs)
DEVONIA N ROCKS(350 to 40 0 million year s)N ordmarkite, l arvikite, gran iteB asalt, rhomb eporphyryG ranite, trond hjemiteG abbro, anort hosite, amphi boliteS chist, micac eous slatesG reenstoneS andstone, sc histM arbleG raniteG abbro, anorth osite, amphib oliteB asalt, rhyoliteS andstone, mic aceous schis tG neiss, migma tite
S andstone , co nglomerate
Aggre gate producti onAggre gate for expo rt 2005Skien,gneiss Himbe rg/Freste,syeniteHellevik,anorthositeHausvik, g neissD irdal, gneissEsp evik, granite
Hyllestad TrondhjemiteAusterpollenGranite/gneiss
Rausandgneiss and Lia
Lddingensyenite Berg nesetgabb roBallan gen, gabbro
HnefossgneissBrekke,gneiss Dal, gneissFjordstein , Gabbro Krager, gabbro
OSLO
lesund, gn eissVisnes , ecogiteViken/Frna, gne issHalsvik, gneissB remanger, DyrstadB remanger, Gulests andstoneS andstone-Flor
J elsa, gneissTau,Quartzdiorite
E ikefet, gneiss
Juve ,grani teVin terbro,gn eissFeiring,gneissSTAVANGER
Ottersbo, quartziteBjugn, gne issNord-Fosen, gneiss
Mosjen, gabbro
VassfjelletgabbroTRONDHEIM
BOD
Kv alsund,
B,gabbroSortland, gnei ssTrom s, gneiss
quartzite Bjrn evatn, gneissTRO MS
Hedru m /Tjlling/Svartb ukt, larvikite Sand/ gravel for exp ort 2005rdal,sand/gra velHelle,sand/gra vel
rsjdal,sand/gra vel
Frafjord ,sand/gr avel
Norwegian production of mineral products 2010
Value mill. NOK FOB Mill. tonnes
85 mill. tonnes68 mill tonnesBuilding materials
10.800 mill. NOK1350 mill. EUR4954 mill. NOK, 620 mill EURBuilding materials
Annual consumption: 10.1 tonnes per capita
75 years 760 tonnes!
7,52,6
Norwegian export of aggregates to Europe in 2010
From coastal quarries in Southern Norway:
17.5 mill. tonnes hard rock aggregate0.1 mill. tonnes sand and gravel1.3 mill. tonnes offshore
Export sales: 110 mill EUR
22 %
41 %
18 %
19 %
Export of gravel and hard rock aggregate (inkl. Offshore)
BetongVeiOffshoreAnnet
ParisAmsterdam
Norwegian export of aggregates 2010 by countries
Germany Denmark Netherlands UK Poland France Belgium Baltic states
9Production2010 5.8 mill. tonnes2011 9 mill. tonnes 2012 10 mill. tonnes
Norsk stein as, the largest aggregateproducer in Europe
Information on resources Data acquisition
Fieldwork, mapping Laboratory investigations
Los Angeles method Polished stone value Nordic abrasion value Micro-deval Microscopy Quartz in % and Radon in ppm
Data interpretation Data presentation
Case: Larvikite
Dimension stone, export 20 quarries, 350 employees Total turnover: 58 mill. EUR Profitable, significant business in one specific
region. Larvikite is utilised worldwide, one of the most
attractive natural stones in the world. Awarded as the National rock of Norway
Several varieties and qualities
Very important (confirmed reserves)Important (possible reserves)May be important (potential reserves)
Partly importantNot important
www.ngu.no
Database Sand and gravel
Chrushed rock aggregates
Natural stone
Operators 351 342 94
Employees 500 1590 600
Number of deposits 8200 1200 1216
Deposits ofnational interest
21 50 60
Deposits ofregional interest
59 39 -
Number of quarries 7180 1095 1216
Quarries in production
420 310 91
Quarries withperiodic activity
1700 300 89
Closed quarries 5060 485 687
Deposits withoutquarries
- 250 154
Quarries ofhistorical interest
- - 348
In production
Potential deposit
60 natural stonedeposits of
national interest
National and regional important sand, gravel and crushed rock deposits
Of national interest:
50 crushed bedrock aggregates
21 sand/gravel
Of regional interest:
59 crushed bedrock
aggregates
39 sand/gravel
National database of available resources: Sand, graveland crushed rock aggregates:Norsk Stein AS, Suldal municipality, Rogaland county
Trondheim
OsloBergen
Stavanger
Case studies: Aggregates in the Jren region and Oslo region
Large amount of local consumption Large amount of export High-quality resources Economic growth- demand for areas-
land-use conflicts Issue addressed by the county council
Regional plan for aggregates, JrenHigh-quality deposits of sand, gravel and crushed rock aggregates
Sand and gravel
Very important depositImportant depositLess important deposit
Potential areas for utilisation
GravelChrushed rock
Areas designated for recreation and approved green belts
Recreation areas
GravelHard rock
Regional recreation areasAreas protected by lawAreas where protection is recommended
Other important areas for recreation
Trekking routes
Nature conservation plans
GravelHard rock
Areas protected by law
Areas where protection is recommendedGeological heritage areas
Nature conservation areas
Cultural heritage sites
GravelHard rock
Areas of interest
Protected objects
Cultural heritage