Rock Reference samples, San Marcos Gabbro, GSM‐1 and Lakeview Mountain Tonalite, TLM‐1

Two rock samples from the San Marcos Gabbro and the Lakeview Mountain Tonalite of the Southern California Batholith were prepared as U.S. Geological Survey reference samples. These samples were chosen to supply reference data for rocks having intermediate silica contents in the range of 45-60 percent. Unpublished data by members of the U.S. Geological Survey and some published data are summarized, and provisional estimates of the major and minor oxide and traceelement contents are given.

[1]  F. J. Flanagan,et al.  Ohio shale (Devonian), SDO-1, from Rowan County, Kentucky , 1985 .

[2]  F. J. Flanagan,et al.  Mercury in Geologic Reference Samples , 1982 .

[3]  F. J. Flanagan,et al.  The H2O+ Contents of Some Geochemical Standards Predicted by a Calibration Line , 1981 .

[4]  Catharine P. Thomas,et al.  A Minicomputer-Based Emission Spectrographic Analysis System Dependent on Scanning Microphotometry , 1979 .

[5]  T. Steele.  A Guide to the Reporting of Analytical Results Relating To the Certification of Geological Reference Materials , 1978 .

[6]  P. A. Baedecker,et al.  Application of epithermal neutron activation in multielement analysis of silicate rocks employing both coaxial Ge(Li) and low energy photon detector systems , 1977 .

[7]  L. Shapiro.  Rapid analysis of silicate, carbonate, and phosphate rocks , 1975 .

[8]  L. Greenland,et al.  Spectrophotometric determination of niobium in rocks , 1974 .

[9]  W. Youden.  Use of Incomplete Block Replications in Estimating Tobacco-Mosaic Virus , 1972 .

[10]  F. J. Flanagan,et al.  X-Ray Fluorescence Analysis of the Light Elements in Rocks and Minerals , 1963 .

[11]  R. Havens,et al.  A spectrochemical method for the semiquantitative analysis of rocks, minerals, and ores , 1961 .

[12]  S. Nockolds.  AVERAGE CHEMICAL COMPOSITIONS OF SOME IGNEOUS ROCKS , 1954 .

[13]  H. Fairbairn,et al.  A Cooperative Investigation of Precision and Accuracy in Chemical, Spectrochemical and Modal Analysis of Silicate Rocks. Contributions to Geochemistry, 1950-51, , 1951 .

[14]  E. S. Larsen.  BATHOLITH AND ASSOCIATED ROCKS OF CORONA, ELSINORE, AND SAN LUIS REY QUADRANGLES SOUTHERN CALIFORNIA , 1948 .

[15]  W. J. Youden,et al.  Experimental designs to increase accuracy of greenhouse studies. , 1940 .