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Geological map of New Zealand 1:1 000 000 (2 print maps)

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$24.11 (inc GST) $20.96 (exc GST)
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GNSGM2a
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250.00 Grams
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    Edbrooke, S.W.; Heron, D.W.; Forsyth, P.J.; Jongens, R. (compilers) 2015 Geological map of New Zealand 1:1 000 000. Lower Hutt, N.Z.: GNS Science. GNS Science geological map 2 2 maps

    Abstract: In 1865, the year the New Zealand Geological Survey was established, James Hector produced the first geological map of New Zealand at a scale of about 1:2 000 000. In the year of the 150th anniversary, this new 1:1 000 000 scale geological map of New Zealand is released by GNS Science, the Geological Survey's successor. The new map is based on the recently completed second edition, 1:250 000 Geological Map of New Zealand series, named "QMAP" (for Quarter-million MAP) and incorporates the advances in understanding of New Zealand geology that came from it. It includes geology of the Kermadecs and subantarctic islands, which were not included in QMAP coverage.

    The geological units shown on the map are distinguished primarily by age of deposition or emplacement, using international time scale units. Sedimentary units are differentiated and coloured according to their depositional age, with overprints used to distinguish those deposited in non-marine and coastal environments. Late Cretaceous and younger igneous rocks are coloured shades of red to pink, rather than the colours assigned to sedimentary units of comparable age. Metamorphic rocks are portrayed according to their known or inferred protolith age; Haast Schist rocks have overprints differentiating textural metamorphic grade. Major allochthpnous units are distinguished by having a diagonal white stripe overprint on the underlying protolith colour. Basement sedimentary rocks are portrayed according to age and technostratigraphic terrane affinity. Most known active faults are shown, but of necessity only selective "inactive" faults are shown. 

    The map consists of two sheets, North and South Islands, with detailed geological legends. Digitial vector data for the map are available on DVD through this Webshop and through the GNS Science website and web servers.

     

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