Diagenetic fabrics in some British Dinantian limestones
- 1 January 1961
- journal article
- Published by Wiley in Geological Journal
- Vol. 2 (1) , 11-36
- https://doi.org/10.1002/gj.3350020103
Abstract
Diagenetic fabrics (textures and structures) have been examined in thin sections of Dinantian limestones mainly from the Avon Gorge, North Wales and Yorkshire. Six processes are shown to have been responsible for the change from unconsolidated sediment to limestone. These are: (1) granular cementation and drusy growth, (2) rim cementation (secondary enlargement), (3) pressure solution, (4) grain growth sensu stricto, (5) mechanical deposition in cavities of post‐depositional age, and (6) post‐depositional formation of cavities by erosion and solution in a carbonate mud.Grain growth, a process well known to metallurgists, acts in monomineralic fabrics of low porosity in the solid state. The intergranular boundaries wander so that some grains enlarge while others shrink and disappear, so bringing about a general increase in coarseness.In all the limestones the mosaic between the mechanically deposited particles (skeletal debris, pellets, ooliths) is one of three types. These are granular cement, rim‐cemented detrital crystals, and a mosaic caused by grain growth.Keywords
This publication has 18 references indexed in Scilit:
- A Study of Porosity and Grain Relationships in Experimental SandsJournal of Sedimentary Research, 1953
- The Origin of the Supposed Tufa Bands in Carboniferous Reef LimestonesGeological Magazine, 1952
- Crystal GrowthAmerican Journal of Physics, 1951
- The Lower Carboniferous reef limestones of Cracoe, YorkshireQuarterly Journal of the Geological Society, 1949
- Cementation of Some California Tertiary Reservoir SandsThe Journal of Geology, 1949
- The structure of the wall of the test in the Foraminifera; its value in classificationQuarterly Journal of the Geological Society, 1948
- “Algal Dust” and the Finer-grained Varieties of Carboniferous LimestoneGeological Magazine, 1941
- PetrotectonicsAmerican Journal of Science, 1933
- The Lithological Succession of the Carboniferous Limestone (Avonian) of the Avon Section at CliftonQuarterly Journal of the Geological Society, 1921
- Faunal and Lithological Sequence in the Carboniferous Limestone Series (Avonian) of Burrington Combe, SomersetQuarterly Journal of the Geological Society, 1911