Titlebook: Siliceous Deposits of the Tethys and Pacific Regions; James R. Hein,Jelena Obradović (Faculty of Mining Conference proceedings 1989 Sprin

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commensurate

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Radiolarians, Radiolarites, and Mesozoic Paleogeography of the Circum-Mediterranean Alpine Beltsnned continental crust. Radiolarites deposited during Dogger and Malm time are of three types and characterize three environments whose common attribute is a basal diachronism and a synchronous top. Radiolarites intercalated with sedimentary sequences occurred in basins that received deposits since

Cardiac-Output

Siliceous Deposits in Yugoslavia: Occurrences, Types, and Ages different parts of this oceanic basin by different depositional mechanisms. Commonly, olistoliths of the porphyrite-chert assemblage occur in the Diabase-chert Formation. Siliceous deposits associated with carbonate complexes occur in different parts of Yugoslavia, but as an example of this litholo

Stress-Fracture

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Distribution and Evolution of Siliceous Rocks in Bulgariagh jasper, siliceous shale, bedded chert, nodular chert, silicified limestone, and vein agate; back-arc trough radiolarite, spongolite, and nodular chert; active continental margin silicified limestone, jasper, nodular chert, and agate; epicontinental sea nodular chert, spongolite, diatomite, and si

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Early and Late Diagenetic Chert in Carbonate Turbidites of the Senonian Flysch, Northeast Bilbao, Sptypes of chert. The contents in Zr, Pb, Rb, and Zn are higher than the amounts commonly found in these types of cherts from other areas, and these elements may be associated with the iron oxides..The silica of the bedded and nodular chert was derived from the early dissolution and calcitization of s

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Petrology and Diagenetic Changes in Miocene Marine Diatomaceous Deposits from Zakynthos Island, Greed throughout the formation. The chalcedonic quartz, appearing as spherical chert nodules in a carbonate matrix, occurs at the base of the formation, while clinoptilolite and opal-CT occur at higher stratigraphic levels, but below the layers rich in opal-A. However, because of tectonic disruption, th

Processes

Silicified Wood from the Adoyama Chert, Kuzuh, Central Honshu, and Its Bearing on Compaction and Dep The average sedimentation rate of the Adoyama Chert estimated from this method uncorrected for compaction is 2.1 m/m.y., corresponding to an uncompacted sedimentation rate of 10.5 m/m.y. The average sedimentation rate of 10.5 m/m.y. is comparable within the limit of error to 16 m/m.y. determined by