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of stream-sediment and heavy-mineral-concentrate samples Open ...

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TABLE 1. --Limits <strong>of</strong> determi nat ion for the spectrographic analysi s <strong>of</strong> <strong>stream</strong><br />

<strong>sediment</strong>s, based on a 10-mg sanple<br />

- [The spectrographic limjts <strong>of</strong> determination for <strong>heavy</strong>-<strong>mineral</strong>-<strong>concentrate</strong><br />

<strong>samples</strong> are based on a 5-mg sample, <strong>and</strong> are therefore two reporting intervals<br />

higher than the limits given for rocks <strong>and</strong> <strong>stream</strong> <strong>sediment</strong>s]<br />

Elements Lower determination 1 imi t Upper determination limit<br />

Iron (Fe) 0.05<br />

Magnes i urn (Mg) .02<br />

Calcium (Ca) .05<br />

Titanium (Ti) .002<br />

Manganese (Mn)<br />

S4 lver (Ag)<br />

Arsenic (As)<br />

Gold (Au)<br />

Boron (B)<br />

Barium (Ba)<br />

Beryl 1 ium (Be)<br />

Bismuth (Hi)<br />

Cadmium (Cd)<br />

Cobalt (Co)<br />

Chromi um (Cr)<br />

Copper ( Cu )<br />

Lanthanum (La)<br />

Molybdenum (Mo)<br />

Niobium (Nb)<br />

Nickel (Ni)<br />

Lead (Pb)<br />

Antimony (Sb)<br />

Sc<strong>and</strong>i um (Sc)<br />

Tin (Sn)<br />

Strontium (Sr)<br />

Vanadium (V)<br />

Tungsten (W)<br />

Yttrium (Y)<br />

Zinc (Zn)<br />

Zirconium (Zr)<br />

Thorium (Th)<br />

Percent<br />

Parts per mi 11 ion

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