Carbonate Needles: Additional Organic Sources

Stieglitz, Ronald D.

doi:10.1130/0016-7606(1973)84<927:cnaos>2.0.co;2

Cited by 13 publications

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“…Stieglitz (1972Stieglitz ( , 1973 came to similar results for carbonate muds around Bimini, Bahamas, using SEM observations. Nelsen and Ginsburg (1986) showed how epibionts, such as algae and serpulids on the sea grass Thalassia, may significantly contribute to carbonate mud accumulation in Florida Bay.…”

Section: Introductionsupporting

confidence: 84%

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The origin of carbonate mud in isolated carbonate platforms of Belize, Central America

Gischler

Zingeler

2002

Int J Earth Sci (Geol Rundsch)

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Carbonate mud from three small isolated carbonate platforms of Belize (Central America) is largely a product of the breakdown of skeletal grains. The composition of the 63-20-and 20-4-µm fractions of 37 samples was determined by point counting under SEM; composition of the <4-µm fraction was assessed qualitatively under SEM. The 63-4-µm fractions are dominated by fragments of mollusks, the codiacean alga Halimeda, and other skeletal types. About one-third of the particles in the 63-4-µm fractions remained unidentified, probably due to obliteration of diagnostic features by early recrystallization processes such as micritization. Nanograins (<1 µm) and short (3-5 µm) aragonite needles are most common in the <4-µm fraction. These grains are interpreted to be largely fragments of codiacean algae (Halimeda, Penicillus). The 20-4-and <4-µm sediment fractions are composed of 80 and 75% aragonite on average, respectively. Trace element composition of strontium averages 7,900 ppm in the 20-4-µm fraction and in codiacean algae samples, and 5,600 ppm in the <4-µm fraction. Geochemical (trace element) data also argue against inorganic aragonite precipitation within the water column, and favor a skeletal origin. The lower strontium contents in the <4-µm fraction as compared with the 20-4-µm fraction may also be a consequence of early recrystallization processes.

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Section: Introductionsupporting

confidence: 84%

“…For reference and help during identification, skeletal components of known organisms such as corals, mollusks, algae, foraminifera, and tunicates were studied under SEM. The descriptions of Hay et al (1970), Stieglitz (1972Stieglitz ( , 1973, Loreau (1982), and Reid (1995, 1998) were also used for comparison.…”

Section: Methodsmentioning

confidence: 99%

The origin of carbonate mud in isolated carbonate platforms of Belize, Central America

Gischler

Zingeler

2002

Int J Earth Sci (Geol Rundsch)

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“…The reworked components are most likely a product of re-deposition from nearby high-relief skeletal accumulation by episodic current/wave actions (Fürsich et al 2003;Tomašovŷch, 2006). The fine mud matrix may have been produced by calcified algae, as calcareous green algae are undoubtedly the most significant single source of fine-grained calcium carbonate mud similar to that of foraminifera, molluscs, corals and tunicates (Stieglitz, 1973) and are also known to produce biogenic mounds (Wray, 1977;Flügel, 2004). This microfacies has similarities with microfacies type SMF18 of Flügel (2004), the lime mudstone-wackestone facies of Lavoie & Asselin (1998) and algal packstone of the intramound lithofacies of Sivhed et al (2004).…”

Section: Lithofacies 4: Algal Peloidal Wackestone-packstonementioning

confidence: 99%

Ostracods from Upper Ordovician (Katian) carbonate lithofacies in southwest Scotland

et al. 2010

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The Ordovician Craighead Limestone Formation of southwest Scotland was formed on a carbonate platform on the eastern tropical margin of the Laurentia palaeocontinent during the early Katian (c. 456 Ma). It yields the most diverse and well-preserved ostracod fauna yet recovered from the Scottish Ordovician succession, with some 25 species divisible into two distinct marine biotopes comprising shallow lagoonal and deeper platform margin settings, respectively. The ostracods show strong biogeographic links at species-level with Sandbian and early Katian faunas of North America, including Krausella arcuata, Steusloffina cuneata, Monoceratella teres and species of Levisulculus and Platybolbina. However, many of the ostracod genera that characterize the Craighead Limestone Formation have earlier origins in the Baltica palaeocontinent, suggesting enhanced migration of species from mid- (Baltica about 30° S) to low (Laurentia) latitudes in the late Sandbian and early Katian interval. Such Baltica-origin genera include Distobolbina, Kiesowia and Platybolbina. Notable is the wide biogeographic occurrence of Steusloffina cuneata, extending from warm tropical Laurentia to cooler high-latitude Gondwana, an enormous latitudinal range for a shelf-dwelling marine species. The possible Tvaerenellidae taxon Duoarcus levigatus gen. et sp. nov. is described.

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Sedimentary Carbonates

Lewis¹,

McConchie²

1994

Practical Sedimentology

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Carbonate Needles: Additional Organic Sources

Cited by 13 publications

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The origin of carbonate mud in isolated carbonate platforms of Belize, Central America

The origin of carbonate mud in isolated carbonate platforms of Belize, Central America

Ostracods from Upper Ordovician (Katian) carbonate lithofacies in southwest Scotland

Sedimentary Carbonates

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