About This Item
- Full TextFull Text(subscription required)
- Pay-Per-View PurchasePay-Per-View
Purchase Options Explain
Share This Item
The AAPG/Datapages Combined Publications Database
Journal of Sedimentary Research (SEPM)
Abstract
The Clay Minerals of the Neuse River Sediments
Charles Q. Brown, Roy L. Ingram
ABSTRACT
The clay fractions of 31 samples of Neuse River sediments were analyzed by x-ray diffraction techniques in order to determine their clay mineral composition and to determine the diagenetic changes in a stream environment. Kaolinite, illite, montmorillonoids, "chlorite," and mixed-layer aggregates were identified. Kaolinite is the dominant mineral but decreases downstream. Illite occurs sporadically throughout the length of the stream. Montmorillonoids occur in small amounts in the upper part of the stream. A chloritic mineral is found in the lower part of the stream and in the upper part of the estuary. This mineral is similar to chlorite in that it gives a 14 A basal spacing that does not shift with glycerol or ammonium chloride saturation but dissimilar in that the 14 A spacing is a tered by heating, at 550° C. Mixed-layer aggregates, possibly of illite and "chlorite," occur throughout the length of the stream but increase downstream. Material, amorphous to x-rays, is common or abundant in nearly all of the samples. It is probable that kaolinite and montmorillonoids are partly altered to amorphous material, "chlorite," and mixed-layer aggregates.
Pay-Per-View Purchase Options
The article is available through a document delivery service. Explain these Purchase Options.
Watermarked PDF Document: $14 | |
Open PDF Document: $24 |