博物館でJOGMECの「金属資源レポート 2012.11 Vol.42 No.4」を読んでいたら面白い記事が・・・
“ニュージーランドの鉱業事情”の金鉱床分布
黄色の部分が砂金エリア(Gold placer(Alluvial)field)か、なるほど南島の西海岸とOtago地域ねー
元データのあるニュージーランド政府のサイトには他にも面白そうなデータが。
http://www.nzpam.govt.nz/cms/minerals/mineral-resources
http://www.nzpam.govt.nz/cms/pdf-library/minerals/publications/fact-sheets/CO11916_8_GoldDeposits.pdf
http://www.nzpam.govt.nz/cms/pdf-library/minerals/publications/fact-sheets/CO11916_5_PGM.pdf
http://www.nzpam.govt.nz/cms/minerals/mineral-resources#maps
ん？これは趣味の砂金掘りに関連する項目では？
http://www.nzpam.govt.nz/cms/minerals/gold-fossicking
Gold Fossicking
What is fossicking?
Fossicking generally means searching for and collecting materials from the surface of the land, or by digging by hand. New Zealand gold fossicking is restricted to hand-held non-motorised methods only, such as gold panning, sluice boxing and the use of metal detectors.
Alluvial gold (found in soil and sediments, usually around rivers and streams) is present within all the gold fossicking areas, although the concentrations are often low.
How do I get started?
Grab yourself a gold pan and a shovel, a sluice box or a metal detector and head down to your nearest fossicking area. For more information on fossicking techniques and equipment, you can visit www.mineforgold.co.nz.
Seventeen areas in historic South Island gold mining regions have been set aside where you can freely enjoy recreational gold mining without the need for a permit.
Some of the areas are equipped with picnic, barbecue and camping facilities and have good public access.
後でじっくり読んでみよう。
