Studies on bedded cherts
@article{Thurston1972StudiesOB, title={Studies on bedded cherts}, author={Diana Thurston}, journal={Contributions to Mineralogy and Petrology}, year={1972}, volume={36}, pages={329-334} }
Radiolarian cherts from two localities in North-western Italy have been studied by optical and scanning electron microscopy, X-ray diffraction and X-ray fluorescence analysis. The quality of preservation of the radiolarians decreased from dark red to pale cherts. The effect of diagenetic processes (solution, reprecipitation and recrystallization) was least in red cherts where contained hematitic and clay material inhibited the movement of pore solutions, and greatest in the pale cherts…
31 Citations
The origin and diagenesis of cherts from Cyprus
- Geology
- 1977
The Troodos Massif of Cyprus is overlain by a variety of cherts in pelagic chalks, volcanogenic sediments, radiolarites and radiolarian mudstones, all of Campanian to Upper Eocene age.
There…
Thermal Alteration of Chert in the Ophiolite Basement of Southern Central America
- Geology
- 1989
Radiolarian chert and volcaniclastic-rich siliceous rocks of the Nicoya Complex were studied by optical mineralogy, X-ray diffractometry, and SEM. Various phenomena of thermal alteration occur due to…
Triassic bedded cherts in central Japan are not pelagic
- GeologyNature
- 1982
Although the origin of bedded radiolarian cherts in orogenic belts has been widely debated1–15, their geochemistry is still poorly understood. Triassic bedded radiolarian cherts occur extensively in…
Chemistry and mineralogy of Jurassic bedded chert overlying ophiolites in the North Apennines, Italy
- Geology
- 1981
Research paperGiant pyritic base-metal deposits: The example of Feitais (Aljustrel, Portugal)
- Geology
- 1988
On the origin of cherts
- Geology
- 1984
SummaryA new classification scheme for non-detrital siliceous rocks is proposed, facts and problems coneerning the origin of cherts are discussed, and a new genetic model is presented. The…
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Rocks of eugeosynclinal origin in the northern Independence Range, Elko County, Nevada (Wildhorse and Bull Run quadrangles) compose the Schoonover Formation which includes eight named and two unnamed…
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Summary
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The data on solubility of amorphous silica and quartz at low temperatures are reviewed. Determinations of the metastable equilibrium solubility of amorphous silica at 25° C. in distilled water and…