Analytical and stratigraphic data on the upper phosphatic mudstone member of the Santa Margarita Formation at Newsome Canyon, southern Cuyama Valley, California

Albert Eugene Roberts

doi:10.3133/ofr791466

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Analytical and stratigraphic data on the upper phosphatic mudstone member of the Santa Margarita Formation at Newsome Canyon, southern Cuyama Valley, California

Albert Eugene Roberts

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Abstract

A detailed stratigraphic and geochemical program was conducted in 1978 on the strata of the upper phosphatic mudstone member of the Santa Margarita Formation at Newsome Canyon, Santa Barbara County, California, (fig 1). This program was undertaken to determine the phosphate content of each stratigraphic unit in an area of complex stratigraphy and structure. The report includes a detailed stratigraphic description of the upper phosphatic member with location of samples collected (Table 1) and a tabulation of chemical analysis for each sample (Tables 2 and 3). The chemical data indicate the marine apatite (carbonate fluorapatite) is of variable composition.

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Source-reported bounding extent: 32.534156° to 42.009247° latitude; -124.409591° to -114.134768° longitude. This indicates report coverage, not an exact sampling location. View area on OpenStreetMap.

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Albert Eugene Roberts. 1979. Analytical and stratigraphic data on the upper phosphatic mudstone member of the Santa Margarita Formation at Newsome Canyon, southern Cuyama Valley, California. https://doi.org/10.3133/ofr791466

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