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Publication Extents

Not all publications have extents, not all extents are completely accurate
Empirical transfer functions for stations in the Central California seismological network
W. H. Bakun, Jay Dratler
1976, Open-File Report 76-259
A sequence of calibration signals composed of a station identification code, a transient from the release of the seismometer mass at rest from a known displacement from the equilibrium position, and a transient from a known step in voltage to the amplifier input are generated by the automatic daily calibration...
Oxalic-acid leaching of rock, soil, and stream-sediment samples as an anomaly-accentuated technique
Henry V. Alminas, Elwin L. Mosier
1976, Open-File Report 76-275
In many instances total-rock and sieved-soil and stream-sediment samples lack the sensitivity and contrast required for reconnaissance exploration and necessary in the search for blind ore deposits. Heavy-mineral concentrates incorporate the required sensitivity and contrast but are overly expensive for two reasons: time-consuming sample preparation is required to obtain them,...