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Layman’s sample practice

GTK stakeholder seminar

Kuopio 7.5.2013

Jari Nenonen

kuva-ala tai värikenttä

264x90mm (100dpi)

Historic and unique

• roots go back to time of Swedish rule, 1500-1600 – century

• practice was started in 1730's by Daniel Tilas (1712-1772)

• in Finland great supporters were prof. Aarne Laitakari and Martti Saksela in 1930’s

• top season was in 1950-1970’s when the most ore prospecting companies had their own layman’s

sample offices and practices

• big national campaigns were in 1930’s Malminuotta, 1960’s Malmimarssi ja 1980’s Malmimania

• the oldest layman’s samples in GTK archives are from year 1924

• today only GTK is taking care of layman’s practice in Finland

• internationally wery rare, only in Sweden (SGU) and in Finland (GTK)

• GTK’s layman’s sample office is in Kuopio

Layman’s sample practice

• GTK’s layman’s sample practice provides citizens who are interested in rocks a

chance to send rock samples for analysis free of charge. Each analysed sample will

be investigated, and the research results will be delivered to the sender in a letter.

• practice include ore, industrial mineral, natural stone and precious stone samples

• create a basis for raw material resources mapping and studies

• helps to find new mineral and ore deposits

• bring benefit to the sender of the sample and the GTK and in best case new

industry and working places to the finding area

• increases in a positive way public awareness of geology and the significance of the

material resources and the geological study

• based on the everyman’s rights and the mining law

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Money rewards

GTK gives a monetary reward to the senders of the best samples every year.

Total sum 30 000 €.

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Some numbers…

• the annual sample amount about 6 500

• amount of the chemical analysis about 2 500

• field inspections about 150 annually

• further geological studies in 10-15 places

• annual rewards to the senders of the best samples, prize sums 250 - 4000 € (tot.

30 000 €)

• 600-700 questions and digital pictures by e-mail to layman’s sample office also

letters and phone calls

• all sender and sample information will be recorded in GTK’s data archives

Saltikoff’s boluder showings in

the GTK’s web pages

http://geomaps2.gtk.fi/activemap/

-boulders 1960 – 1980

-includes layman’s boulder and

bedrock sample data from several

ore prospecting companies

- about 9650 samples

GTK layman’s office on line

sample data:

- includes reported boulders

- includes place and analyse data

- samples beginning from year 1989

- about 7300 samples

- the data is transferred to the

GTK’s public archive after one

year waiting period

- public data service is under

development, the problem is the

confidentiality of sample senders

personal data (names, addresses

etc. according toFinnish law)

Suitable for all glaciated areas

9 Jari Nenonen 2011

Twenty-seven of the ore mines in Finland have been discovered on the basis of a layman's sample. Currently five of these mines are still operating. I

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K-TEAM 2013

Jari Nenonen

Jorma Valkama PSY Tuure Nyholm ESY

Kauko Turpeinen Satu Hietala

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13 Jari Nenonen 2011

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Additional, regional stone competitions with co-operation partners

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Contact and personel

Geological Survey of Finland

Kansannäytetoimisto PL 1237 70211 Kuopio

phone: 029 503 3527 e-mail; kansannaytetoimisto@gtk.fi

Jari Nenonen

Satu Hietala, Kauko Turpeinen Support personel;

Rovaniemi; Jorma Valkama Espoo; Tuure Nyholm Kokkola; Olavi Kontoniemi

029 503 3527

00003 VASTAUSLÄHETYS

17 JKN 2010