Middle Permian sponge–microencruster reefal facies in the mid-Panthalassan Akiyoshi atoll carbonates: observations on a limestone slab

Nakazawa, Tsutomu; Igawa, Toshie; Ueno, Katsumi; Fujikawa, Masayuki

doi:10.1007/s10347-015-0443-7

Cited by 8 publications

(8 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The typical characteristic of the studied reef, namely, the prostrate form of most sponges, has only been observed in several reefs of South China (Fan et al, 1987). Microbial sediments were commonly preserved as peloidal aggregations in the studied reef and other coeval reefs (Kirkland et al, 1998), except the reticular and laminar forms in the Akiyoshi reef, Japan (Nakazawa et al, 2015). However, unlike encrusting other main framework‐building organisms to strengthen the rigidity of frameworks in many coeval reefs (Kirkland et al, 1998; Nakazawa et al, 2015; Wahlman et al, 2013), microbial sediments in the studied reef commonly formed small domes that bound sponge clusters together to construct the framework.…”

Section: Discussionmentioning

confidence: 99%

“…(Fagerstrom & Weidlich, 1999; Kirkland et al, 1998), South China (Chen, George, & Yang, 2009; Fan et al, 1987, 2002; Z. H. Liu, 2003; L. Liu, Wu, Jiang, & Liu, 2016; Shen & Xu, 2005; S. H. Wang, Fan, & Rigby, 1996; Wu, 1989, 1998; Yang, Yang, Li, & Zhang, 1995), circum‐tropical Tethyan region (Slovenia, Sicily, Tunisia, and Iran) (Flügel et al, 1984; Flügel, Di Stefano, & Senowbari‐Daryan, 1991; Senowbari‐Daryan et al, 2007; Toomey, 1991), and Akiyoshi Limestone, Japan (Nakazawa, Igawa, Ueno, & Fujikawa, 2015). They are commonly constructed by sponges and Archaeolithoporella , as well as one or more other lesser agents like microbes, bryozoans, Shamovella , and syndepositional cement (Chen et al, 2009; L. Liu et al, 2016; Nakazawa et al, 2015; Senowbari‐Daryan et al, 2007; Wahlman et al, 2013). In these reefs, sponges are normally upright in their growth sites (Fagerstrom & Weidlich, 1999; Fan et al, 2002; Flügel et al, 1984; Kirkland et al, 1998; Senowbari‐Daryan et al, 2007), except in several reefs in South China (Fan et al, 1987).…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Construction mode of a Middle Permian sponge reef in theChangning–MenglianBelt, western Yunnan, China

et al. 2022

View full text Add to dashboard Cite

The Changning–Menglian Belt in western Yunnan, China has long been acknowledged as a major suture zone of the Palaeo‐Tethys in south‐east Asia. Although bearing a wealth of environmental information for this vanished ocean, the Permo‐Carboniferous limestones of seamount resemblance in this belt have only been sketchily studied heretofore in terms of their sedimentary features. This study presents a detailed investigation on a Middle Permian Archaeolithoporella‐microbial‐sponge reef in the Damingshan Formation of these limestones. This reef could be ascendingly subdivided into five parts according to its petrographic and sedimentolotgic properties. The first, third, and fifth parts are characterized by the mixture of Archaeolithoporella‐sponge boundstone, sponge cementstone, microbial boundstone, and skeletal wackestone. They are interpreted to be constructed in a moderate‐energy environment through the following processes: sponges in clusters were partly encrusted by Archaeolithoporella, and mostly toppled over after death; whereafter, spaces within frameworks formed by sponges and/or Archaeolithoporella were occluded by syndepositional cements; during the processes, sponge clusters were bound together by microbial domes, and both acted as bafflers that trapped sediments. In contrast, the construction of the second and fourth parts occurred in a high‐energy environment and is almost devoid of microbial contribution: sponges that were encrusted by Archaeolithoporella toppled over posthumously, and then spaces among them were filled by syndepositional cements, ultimately forming Archaeolithoporella‐sponge boundstone. The construction mode of the studied reef, especially sponge toppling and microbial domal frameworks in‐between sponge clusters, differs from that of most coeval sponge reefs, in which the framework is characterized by erect sponges and microbial encrustations on Archaeolithoporella. Our work not only enriches the sedimentary data of limestones in the Changning–Menglian Belt, but also would hopefully deepen the understanding of the growth model of Permian sponge reefs.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Construction mode of a Middle Permian sponge reef in theChangning–MenglianBelt, western Yunnan, China

et al. 2022

View full text Add to dashboard Cite

show abstract

“…However, the occurrence of putative sphinctozoan sponges indicate at least some importance of reef building/binding metazoans. More field work is required to clarify whether the studied carbonate Nakazawa et al (2015). inv.-nos.…”

Section: Discussionmentioning

confidence: 99%

“…In rare cases, they form patches between biogenic components leading to a bindstone character of the otherwise allochthonous bioclastic carbonates. The fabric of non-skeletal microbialites reveals a clotted peloidal micritic structure indicative for a thrombolitic texture often resembling a reticular microbialitic fabric in the sense of Nakazawa et al (2015) (Fig. 10b-d).…”

Section: Non-skeletal Microbialitesmentioning

confidence: 99%

Microbial-, fusulinid limestones with large gastropods and calcareous algae: an unusual facies from the Early Permian Khao Khad Formation of Central Thailand

Ketwetsuriya

Nose

Charoentitirat

et al. 2020

Facies

View full text Add to dashboard Cite

The Early Permian (Kungurian) Khao Khad Formation of Central Thailand consists mostly of carbonates deposited on the western margin of the Indochina Terrane. This formation has yielded unusual microbial-fusulinid limestones with large gastropods which contribute most to the rock volume. With a height of more than 6 cm, the gastropods are amongst the largest Early Permian gastropods ever reported. Gastropods as major rock formers are rare in the Palaeozoic. This, and other recently reported invertebrate faunas from Thailand show that gastropods may dominate Permian fossil assemblages not only in diversity, but also regarding abundance and in some cases also regarding biomass. Besides gastropods, fusulinids, various calcareous algae, intraclasts and thick microbial-cyanobacterial (Girvanella and Archaeolithoporella) coatings and reticular microbial patches as well as thick inter- and intragranular radial fibrous cement crusts are present. The gastropods represent at least four species and belong probably to undescribed taxa. The fusulinid genus Pseudofusulina and Misellina (M.) termieri are reported from the Khao Khad Formation for the first time and indicate a Bolorian age. Calcareous algae are dominated by dasycladaceans followed by gymnocodiaceans and solenoporaceans. The studied limestone almost completely lacks metazoan reef builders such as corals and sponges. Likewise, brachiopods and bivalves are absent in the studied samples and echinoderms are very scarce. The carbonate is interpreted as product of shallow water, back-reef lagoonal platform community with a high productivity providing the large gastropods with sufficient food. However, conditions were too eutrophic for sessile filter feeders including metazoan reef builders.

show abstract

“…The Late Permian Changhsingian reefs are widely distributed around the Sichuan basin [11]. Sponges were the main skeleton builder of the reef in the worldwide during the Permian period [12][13][14][15]. The Jiantianba sponge reef complex, as the one of the typical marginal platform reefs, is located in western Hubei Province, South China.…”

Section: Introductionmentioning

confidence: 99%

Depositional Architecture and Facies of a Complete Reef Complex Succession: A Case Study of the Permian Jiantianba Reefs, Western Hubei, South China

et al. 2018

View full text Add to dashboard Cite

The Upper Permian Changhsingian Jiantissanba reef complex is a well-known platform marginal reef, located in the western Hubei Province, China. Based on field observations and lithological analysis of the entire exposed reef complex, 12 reef facies have been distinguished according to their sedimentary components and growth fabrics. Each of the lithofacies is associated with a specific marine environment. Vertically traceable stratal patterns reveal 4 types of the lithologic associations of the Jiantianba reef: (1) heterozoan reef core association: developed in the deep marginal platform with muddy composition; (2) photozoan reef core association developed within the photic zone; (3) tide-controlled reef crest association with tidal-dominated characteristic of lithofacies in the shallow water; and (4) reef-bank association dominated by bioclastic components. The entire reef complex shows a complete reef succession revealing a function of the wave-resistant and morphological units. This study displays a complete sedimentary succession of Jiantianba reef, which provides a more accurate and comprehensive description of the reef lithofacies and a better understanding of the structure and composition of organic reefs.

show abstract

Middle Permian sponge–microencruster reefal facies in the mid-Panthalassan Akiyoshi atoll carbonates: observations on a limestone slab

Cited by 8 publications

References 33 publications

Construction mode of a Middle Permian sponge reef in theChangning–MenglianBelt, western Yunnan, China

Construction mode of a Middle Permian sponge reef in theChangning–MenglianBelt, western Yunnan, China

Microbial-, fusulinid limestones with large gastropods and calcareous algae: an unusual facies from the Early Permian Khao Khad Formation of Central Thailand

Depositional Architecture and Facies of a Complete Reef Complex Succession: A Case Study of the Permian Jiantianba Reefs, Western Hubei, South China

Contact Info

Product

Resources

About