  An airborne hyperspectral remote sensing dataset was obtained of the North
Pole Dome region of the Pilbara Craton in October 2002. It has been analyzed
for indications of hydrothermal minerals. Here we report on the identification
and mapping of hydrothermal minerals in the 3.459 Ga Panorama Formation and
surrounding strata. The spatial distribution of a pattern of subvertical
pyrophyllite rich veins connected to a pyrophyllite rich palaeohorizontal layer
is interpreted to represent the base of an acid-sulfate epithermal system that
is unconformably overlain by the stromatolitic 3.42 Ga Strelley Pool Chert.
