biosparite

biosparite

[bī′äs·pə‚rīt]
(petrology)
A limestone made up of less than 25% oolites and less than 25% intraclasts, with the ratio by volume of fossils and fragments to pellets being more than 3:1 and the calcite cement content being greater than the microcrystalline calcite content.
Mentioned in ?
References in periodicals archive ?
Greyish white and light pink biocalcarenites with intercalated beds of a biosparite (0.6 m).
Upper lower Cambrian (provisional Cambrian Series 2) trilobites from northwestern Gansu Province, China/Loode-Hiina Gansu provintsi Alam-Kambriumi (provisoorne Kambriumi seeria 2) trilobiidid
Boring algae, micrite envelopes and lithification of molluscan biosparites. Geological Journal, 5(1), 15-32.
Diagenetic studies of the Cretaceous turbidities, Sulaiman Range, Pakistan: Implications for reservoir quality
Ferrogenous biosparites are observed in Sarcheshmeh formation (Fig.
Clay mineralogy of the Jurassic-tertiary sedimentary rocks of the Kopet Dagh basin (Northeastern Iran): implications for paleoclimate
Towards the north, the Uitpa Formation, an Oligocene to lower Miocene (Rollins, 1960) 150 m thick marine sequence of very fine grained sandstones locally fosilifeorus interlayered with biosparites, mudstones and siltstones, overlies partially the Siamana Formation in angular uncorfomity and partially lies non-conformable on top of the crystalline rocks of the Serrania de Jarara.
Thermal modeling of pluton emplacement and associated contact metamorphism: parashi stock emplacement in the Serrania de Jarara (Alta Guajira, Colombia)
Boring algae micrite envelopes and lithification of molluscan biosparites. Geological Journal 5 15-32.
Diagenetic analysis of the Early Eocene Margala Hill limestone Pakistan: A synthesis for thin section porosity

Encyclopedia browser ?
Full browser ?