Hydration of silica and its role in the formation of quartz veins - Part 2

  • John Elliston Elliston Research Associates Pty Ltd, 10B The Bulwark, CASTLECRAG 2068, New South Wales, Australia
Keywords: Accretion, concretion, charged particle, ptygmatic folds, precursor mineral, enhanced crystal growth, metasomatism, porphyroid, granite

Abstract

The aqueous chemistry of silica and the formation of abundant polymeric silica species in natural sediment accumulations is set out in Part 1. Part 2 continues to describe the amorphous silica in sediments and presents more evidence for the formation of quartz veins from silica gels. The physical chemistry for the formation of oolites in quartz veins, ptygmatic folding of quartz veins, the enhanced growth of crystals in quartz veins, the precipitation of gold in quartz and the mechanism for replacement or metasomatism by quartz (silicification) are detailed. Current physical chemistry applies not only to precursor silica gel but also to the hydrous precursors of other crystalline rock minerals such as clays, mica, hydrous ferromagnesian minerals and mineral deposits. “The Origin of Rocks and Mineral Deposits - using current physical chemistry of small particle systems” provides a new basis for understanding geological phenomena. This has now been published in Elliston1 2017 (Connor Court, Brisbane, ISBN 978-1-925501-36-0).

Author Biography

John Elliston, Elliston Research Associates Pty Ltd, 10B The Bulwark, CASTLECRAG 2068, New South Wales, Australia

After early experience as a chemist and consulting geologist, John Elliston joined the small Peko mining company in 1956 where studies led to understanding the nature and origin of the local intrusive ironstone deposits.  Application of the new concepts by his exploration team led to discovery in Australia of 9 new mines containing 33 orebodies in a 15 year period and to dramatic growth of his company.  He was appointed to the board of the parent company in 1969 and, as an Executive Director, he was responsible for technical subsidiaries including Geopeko Limited. Fourteen published and 65 unpublished scientific papers and reports record his recent research and his treatise the international edition of The Origin of Rocks and Mineral Deposits - using current physical chemistry of small particle systems is now published.

Published
2019-03-31
How to Cite
Elliston, J. (2019). Hydration of silica and its role in the formation of quartz veins - Part 2. Substantia, 3(1). https://doi.org/10.13128/Substantia-209
Section
Research Articles