Structural and Textural Evidence of Early Lithification in Fine‐grained Carbonate Rocks

Zankl, Heinrich

doi:10.1111/j.1365-3091.1969.tb00877.x

Cited by 61 publications

(20 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Inland, the surface represents a firm ground developed on bioturbated white calcilutite: biomicrite, and shows no definite evidence of emergence (e.g., Kokoamu Cliffs, Earthquakes); at Awamoko the surface is an angular unconformity. Lack of penecontemporaneous cementation in the calcilutite probably reflects the presence of clay in quantities larger than 2% (see Zankl, 1969); this may account for the absence of a hardground, in contrast to the substrate in the emergent calcarenites and calcirudites of the coastal region (if. Goldring and Kazmierczak, 1974).…”

Section: Unconformity On Mcdonald Limestonementioning

confidence: 99%

Mid Tertiary Unconformities in the Waitaki Subdivision, North Otago

Lewis

Belliss²

1984

Journal of the Royal Society of New Zealand

View full text Add to dashboard Cite

Section: Unconformity On Mcdonald Limestonementioning

confidence: 99%

Mid Tertiary Unconformities in the Waitaki Subdivision, North Otago

Lewis

Belliss²

1984

Journal of the Royal Society of New Zealand

View full text Add to dashboard Cite

“…High concentration of lime mud promotes early cementation, whereas clay contents (in excess of only a few percent) prevent and retard precipitation of cementing calcium carbonate during early diagenesis [3,5,25,26,43]. The differential cementation of lime mud layers and argillaceous layers resulted in redistribution of carbonates and further separated carbonates and argillaceous deposits [26,44].…”

Section: Prerequisite Conditionsmentioning

confidence: 96%

Early diagenetic deformation structures of the Furongian ribbon rocks in Shandong Province of China—A new perspective of the genesis of limestone conglomerates

Chen

Han

Zhang

et al. 2010

Sci. China Earth Sci.

View full text Add to dashboard Cite

Ribbon rocks are characterized by an alternation of millimeter-to centimeter-thick limestone and argillaceous deposits (marlstone or shale). The sedimentary processes and diagenetic characteristics of ribbon rocks might be critical to the formation of limestone conglomerates. According to detailed field measurement and laboratory analyses (thin section observation and XRD analysis), four types of ribbon rocks are classified, i.e., limestone and marlstone couplet (L-M), limestone and shale couplet (L-S), thin-bedded lime mudstone (Ltb), and laminated limestone and marlstone couplet (Cl). These ribbon rocks were mostly deposited in low-energy subtidal environments (below fair-weather wave base). Ribbon rocks exhibit various subtle deformation structures such as intrastratal cracks and "boudin" structures. Differential cementation of carbonate and argillaceous layers during early diagenesis is a prerequisite condition for the deformation of ribbon rock under compaction. Ribbon rocks would be deformed into limestone conglomerates under differential compaction that might be triggered by external forces such as storm and earthquake. ribbon rock, cracks, "boudin" structure, early diagenesis, pseudoconglomerate, Furongian, Shandong Province Citation:Chen J T, Han Z Z, Zhang X L, et al. Early diagenetic deformation structures of the Furongian ribbon rocks in Shandong Province of China-A new perspective of the genesis of limestone conglomerates.

show abstract

“…Parallel to field studies in recent environments, reports of submarine cementation in fossil reefs (KRF, ss, 1966, 1971and ZANKL, 1969, 1971) provided more evidence for the cementation of reef rocks under submarine conditions, rather than meteoric ones.…”

Section: Introductionmentioning

confidence: 90%

“…The so called "Oberr~it-Riffe" characterise the inner margins of the "Dachstein" shelf (ZANKL, 1971). Their organic frameworks are mainly composed of corals, calci-sponges, hydrozoa and encrusting organisms (Bryozoa, Foraminifera and Algae).…”

Section: Feichtenstein and Adnetmentioning

confidence: 99%

Petrography and geochemistry of carbonate void-filling cements in fossil reefs

Mirsal

Zankl

1979

Geol Rundsch

View full text Add to dashboard Cite

ZusammenfassungDie Untersuchung der Verteilung yon Ca 2+, Mg 2+, Na +, Sr 2+ und K +, sowie Ots und C TM in Hohlraumzementen aus drei fossilen Rfffen yon devonischem und triadischem Alter zeigt eine rhythmische Schwankung in den sukzessiven Zementschalen. Die Schwankung der geochemischen Parameter reflektiert eine ~uderung der Salinit~tsbedingungen. Dies wird unter der Annahme erkl~rt, dal3 die Ausfiillung der Hohlraume zuerst in einem halbgeschlossenen, sp~iter dann in einem relativ geschlossenen System statffindet. Die Faktorenanalyse best~tigt diese Hypothese.Die Mineralogie der gebildeten Zemente folgt der rhythmischen Sa]initiitsschwankung und daraus entstand zunachst eine W'echsellagemng yon caleitischen und aragonitischen Zernenten.~3ber Inversion und Sanamelkristallisation bildet sich w~hrend der sp~iteren Diagenese der fibrSse Calcit, dessen rhythmische Gefiigeabfolge yon der urspriinglichen Mineralogie der Zemente diktiert wird. Als letzte Zementgeneration folgt blockiger Calcit aus ionenarmen LSsungen, wobei keine Umwandlung dieser Zementphase mehr erfolgt.Aus der Faktorenanalyse aller geochemischen Parameter ergeben sich drei Faktorengruppen, die die Salinit~t, Temperatur und urspriingliche Bildungsmineralogie charakterisieren. AbstractAn Investigation of the distribution of Ca 2 § Mg 2 § Na +, Sr 2+ and K § as well as 0 28 and C t3 in void-filling cements out of three fossil reefs --of Devonian and Triassic ages --shows a rhythmic fluctuation of these parameters in the successive layers. This reflects a similar change in the salinity conditions during cementation. It also leads to the presumption that the void filling process starts in early stages with a semi-closed system and later passes into a relatively closed one. Results obtained from factor analysis support this hypothesis.The original mineralogic constitution of the cements must have followed the rhythmic fluctuation of salinity with the result of forming alternative layers of aragonite and calcite. These lead, through inversion and grain growth, in later diagenetic stages to the formation of fibrous calcite.Blocky calcite represents the last stage of cementation. It crystallises out of exhausted solutions and shows no signs of inversion.Multivariate analysis of all investigated parameters reveals three factors. These were interpreted as representing Salinity, Temperature and original Mineralogy. --Petrography of Carbonate Void-FiUing Cements in Fossil Reefsvariation rythmique dans les couches successives du ciment. La variation des param~tres chimiques refl6te un changement dans les conditions de la salinit& Ceci s'explique si l'on accepte que le remplissage des rides a eu lieu dans un milieu d'abord ~t moiti6 ferm6, et plus tard relativement ferm6. L'analyse des facteurs confirme cette hypoth6se. La min~-ralogie du ciment form6 est conforme ~ la variation rythmique de la salinit6, d'ofi r~sulta une alternance de ciment calcitique et aragonitique. Apr6s l'inversion et la recristallisation coalescente, il s'est form6, durant la diagen6se ul...

show abstract

Structural and Textural Evidence of Early Lithification in Fine‐grained Carbonate Rocks

Cited by 61 publications

References 14 publications

Mid Tertiary Unconformities in the Waitaki Subdivision, North Otago

Mid Tertiary Unconformities in the Waitaki Subdivision, North Otago

Early diagenetic deformation structures of the Furongian ribbon rocks in Shandong Province of China—A new perspective of the genesis of limestone conglomerates

Petrography and geochemistry of carbonate void-filling cements in fossil reefs

Contact Info

Product

Resources

About