RE: Coincidence?gobbly, I read Mosher's report. I am pretty sure that he is talking about the loess not the till. The loess is windblown material which he suggests comes from the area near the glaciers, which is quite a long way north of Charcas. I think the glaciers might have made it to New Mexico, but not further south. There is no till on the Charcas area.
loess n : a fine-grained unstratified accumulation of clay and silt deposited by the wind.
tilln 1: unstratified soil deposited by a glacier; consists of sand and clay and gravel and boulders mixed together [syn: boulder clay]
But I do agree with you and Hank about IP, and I do disagree with xela1, IP works best with disseminated grains of sulfides, not continuous mineralization.
Owl