Whole Rock Geochemical Data For Paleozoic Sedimentary Rocks of the Western Brooks Brooks Range, Alaska

This report presents geochemical analyses for 210 unaltered and unmineralized
rock samples of Paleozoic age in the western Brooks Range of northern Alaska.
These data form the basis for a study by Slack and others (2004a) on the
provenance and depositional history of the Paleozoic strata, and on their
metallogenic significance relative to the formation of large stratabound
Zn-Pb-Ag deposits in the Red Dog mining district. Principal rock types that
were analyzed include shale, siltstone, sandstone, chert, bedded siliceous
rock, and calcareous radiolarite; selected samples of limestone, phosphate, and
argillite, and one siderite concretion, were also analyzed. Note that the
phosphate samples are from the central Brooks Range, east of the Red Dog
district. The geochemical analyses are presented here in Microsoft Excel? and
.dbf spreadsheet formats in order to facilitate calculations and plotting of
data. A related geochemical database on altered and mineralized rocks in the
Red Dog Zn-Pb-Ag district is available.

[Summary provided by the USGS.]