On the Formation and Occurrence of Saddle Dolomite. Discussion

Author

Jay M. Gregg, Missouri University of Science and Technology

Abstract

In their paper on saddle dolomite (M.A. 81-3218), Radke & Mathis suggested that at T > 60°C, sulphate-reducing conditions and pyroelectric effects due to fluctuating T seem to favour the formation of these distorted dolomite crystals. In laboratory experiments Gregg produced saddle dolomite by reacting aragonite pelecypod fragments with MgCl₂ solution containing Ca ions at 260°C for 23 hr and longer. These results demonstrate that neither sulphate-reducing conditions nor fluctuating T are necessary, although the exact role of T in distorting the dolomite lattice remains unknown.

Recommended Citation

J. M. Gregg, "On the Formation and Occurrence of Saddle Dolomite. Discussion," Journal of Sedimentary Petrology, vol. 53, no. 3, pp. 1025 - 1026, Society of Economic Paleontologists and Mineralogists, Sep 1983.

The definitive version is available at https://doi.org/10.1306/212F830F-2B24-11D7-8648000102C1865D

Department(s)

Geosciences and Geological and Petroleum Engineering

International Standard Serial Number (ISSN)

0022-4472

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1983 Society of Economic Paleontologists and Mineralogists, All rights reserved.

Publication Date

01 Sep 1983