Geology topics

Albert Eugene Roberts

Publications and source records attributed to Albert Eugene Roberts.

9 recordsLinked to original sources

USGS1986

Geology and geochemistry of the upper Miocene phosphate deposit near New Cuyama, Santa Barbara County, California

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Bulletin↗

USGS1981

Geology and petrology of the upper Miocene phosphate deposit near New Cuyama, Santa Barbara County, California, with a section on phosphate resources

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Open-File Report↗

USGS1981

Phosphatic rock localities in California

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Open-File Report↗

USGS1979

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

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.

California↗

USGS1964