About This Item

Share This Item

The AAPG/Datapages Combined Publications Database

Journal of Sedimentary Research (SEPM)

Abstract


Journal of Sedimentary Petrology
Vol. 38 (1968)No. 1. (March), Pages 232-234

Quantitative Mineralogical Analysis of Carbonate Sediments: Comparison of X-ray Previous HitDiffractionNext Hit and Electron Probe Microanalyzer Methods: NOTES

Jon N. Weber

ABSTRACT

The mineralogy of the 80 to 140-mesh size fraction of three specimens of carbonate sediment Previous HitfromNext Hit the Great Barrier Reef has been determined by X-ray Previous HitdiffractionNext Hit and by means of frequency distributions obtained Previous HitfromNext Hit Ca, Sr, and Mg electron microprobe analyses of 900 randomly selected grains. Calcite to aragonite ratios determined by the two independent methods are in good agreement. Valid estimates of the ratio of high-magnesium calcite to low-magnesium calcite can be obtained by X-ray Previous HitdiffractionNext Hit only by very slow scanning of the spectrum and partial resolution of the modes of the calcite Previous HitdiffractionNext Hit maximum; most other methods commonly used to partition the calcite curve into high-magnesium and low-magnesium components over-estimate the abundance of low-magnesium calcite.


Pay-Per-View Purchase Options

The article is available through a document delivery service. Explain these Purchase Options.

Protected Document: $10
Internal PDF Document: $14
Open PDF Document: $24