The mineral potential of land managed by the Department of Conservation in the Northland Region, New Zealand

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Christie, A.B.; Barker, R.G. 2009 The mineral potential of land managed by the Department of Conservation in the Northland Region, New Zealand. Lower Hutt, N.Z.: GNS Science. GNS Science report 2009/11 20 p.

Abstract: The Department of Conservation (DoC) administers approximately 1668 km2 of Crown land in Northland, representing about 13% of the total land area of the region. Northland has a complex geology resulting in an endowment of a wide range of mineral commodities. Most of these are present on DoC land. A mineral resource assessment of the DoC land suggests that, in addition to aggregate, limestone and building sand, there are significant resources of a number of other mineral commodities including feldspar sand, Kauri gum, silica sand, gold, aluminium (bauxite), peat and coal. An analysis (excluding aggregate, limestone and building sand) based on mineral deposit models and 2007-2009 prices of mineral commodities suggests that these minerals have a value of approximately $20,561 million for non-metallic minerals, $1,226 million for metallic minerals; $500 million for peat and $32 million for coal. Mineral exploration would be required to better define these resources and their location. (auth)