

   mmaaaass-- zziinncc mmeeaassuurreemmeennttss

        maas

   DDeessccrriippttiioonn::

        Zinc measurements as groundwater quality variable.

   VVaalluuee::

        list with components `x',`y' and `zinc'.

   RReeffeerreenncceess::

        gstat E.J Pebesma (E.J.Pebesma@frw.uva.nl)
        http://www.frw.uva.nl/~pebesma/gstat/

