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An evaluation of temperature scales for silica diagenesis in diatomaceous sequences including a new approach based on the Miocene Monterey Formation, California

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Abstract

Geologic relations indicate that silica phases transformed in the Monterey Formation in two zones that persist over a narrow depth/temperature range and do not stratigraphically overlap. The wide and overlapping range of reported temperatures of these transformations is mainly a result of the many uncertainties inherent in the different methods used to estimate temperature and does not indicate that phases transform throughout these ranges. Our approach to a reliable temperature scale for silica diagenesis combines as empirical zonation of silica phases with temperature calibration from a sequence at maximum temperature and depth of burial.

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  1. U.S. Geological Survey, 345 Middlefield Road, M.S. 999, 94025, Menlo Park, CA

    Margaret A. Keller & Caroline M. Isaacs

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  1. Margaret A. Keller
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  2. Caroline M. Isaacs
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Keller, M.A., Isaacs, C.M. An evaluation of temperature scales for silica diagenesis in diatomaceous sequences including a new approach based on the Miocene Monterey Formation, California. Geo-Marine Letters 5, 31–35 (1985). https://doi.org/10.1007/BF02629794

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  • DOI: https://doi.org/10.1007/BF02629794

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