Depositional response to the Late Triassic ascent of calcareous plankton in pelagic mid-oceanic plate deposits of Japan

Onoue, Tetsuji; Yoshida, Asami

doi:10.1016/j.jseaes.2009.08.013

Cited by 13 publications

(18 citation statements)

References 40 publications

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“…More recently, unusual ‘calcispheres’ of unknown structure have been observed in the siliceous micrite of Upper Carnian to Middle Norian pelagic carbonates from the Panthalassan Ocean, southwest Japan (Onoue & Yoshida 2010). They have been interpreted as incertae saedis calcareous nannofossils, and their biological origin remains in need of further confirmation.…”

Section: Coccoliths In Triassic Sediments: a Reviewmentioning

confidence: 99%

Where and when the earliest coccolithophores?

Gardin

Krystyn

Richoz

et al. 2012

LET

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Gardin, S., Krystyn, L., Richoz, S., Bartolini, A. & Galbrun, B. 2012: Where and when the earliest coccolithophores? Lethaia, Vol. 45, pp. 507–523. New calcareous nannofossil analyses from the Northern Calcareous Alps of Austria are herein used to update and improve the state of knowledge about the oldest occurrence of coccolithophores reported in the literature. Previously reported Norian occurrences of coccoliths were based on an obsolete Triassic chronostratigraphy, in which the Rhaetian stage was subsumed into the Norian (‘Sevatian 2’). The oldest stratigraphical record of coccoliths spp. lies just below the Norian‐Rhaetian boundary and the first coccolith species, Crucirhabdus minutus, is recorded from the base of Rhaetian stage. The latter bio‐event is located just above the First Occurrence of the conodont Misikella posthersteni and the first occurrence of the ammonoid Paracochloceras suessi in the Steinbergkogel section (Austria), Global Stratotype Section and Point (GSSP) candidate for the Norian–Rhaetian boundary. The appearance of the coccolith Crucirhabdus minutus is seen as a robust biochronological datum that will provide useful constraints for Triassic biostratigraphy, palaeoclimatic modelling and phylogenetic reconstructions. The new calcareous nannofossil biochronology of Steinbergkogel that we present herein completes the existing biostratigraphic characterization of the Norian‐Rhaetian transition based on conodonts and ammonoids and strengthens the position of Steinbergkogel as the best GSSP proposed section for the base of the Rhaetian. The record of coccolithophores across the Norian–Rhaetian boundary at Steinbergkogel takes place along with a discernible increase in abundance of Prinsiosphaera triassica, as well as the appearance of Euconusphaera zlambachensis, which are the two most important Rhaetian pelagic carbonate producers. This succession of bio‐events is interpreted as the initiation of the pelagic carbonate production driven by the successful spreading of calcareous nannofossils in the Western Tethys during the Rhaetian. □Austria, Calcareous Alps, coccolithophores, Triassic.

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Section: Coccoliths In Triassic Sediments: a Reviewmentioning

confidence: 99%

Where and when the earliest coccolithophores?

Gardin

Krystyn

Richoz

et al. 2012

LET

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“…Di Nocera and Scandone, 1977;Rai et al, 2004;Furin et al, 2006 Di Nocera andScandone, 1977;Bellanca et al, 1995;Carrillat and Martini, 2009;Preto et al, 2009Kanmera, 1969Sano and Nakashima, 1997;Onoue and Sano, 2007;Onoue and Yoshida, 2010Flügel, 2004Di Nocera and Scandone, 1977Erba, 2006Ridgwell, 2005Erba, 2006;Rigo et al, 2007;Goddéris et al, 2008;Furin et al, 2006Ishiga 1986Kuwahara et al 1998Xia et al 20051982 Blome Sugiyama 1992 Mostler 1994 Orchard 1991 Mizutani, 1990Mizutani, , 2000Mizutani, , 2000Mizutani, , 2000, 2000, Wakita, 1988, 2000 322 2010 …”

Section: 2000mentioning

confidence: 99%

美濃帯西部，舟伏山地域の上部三畳系珪質ミクライト

Sano

Kuwahara

Yao

et al. 2010

Jour. Geol. Soc. Japan

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Siliceous micrite crops out in close association with bedded chert and nodular chert in the Middle Jurassic melange of the Mino terrane in the Mt. Funabuseyama area, central Japan. The siliceous micrite and chert form a characteristic lithologic association of a siliceous micrite-chert facies ca. m thick in a bedded chert succession. The siliceous micrite is light gray and occurs as thin, lenticular beds in thin-bedded chert and as irregular-shaped blocks in thick-bedded to massive chert. The siliceous micrite is described as radiolarian limemudstone that includes subordinate thin-shelled bivalves within a limemud matrix. Conodont and radiolarian fossils indicate a Carnian to lower Norian age for the siliceous micrite and associated bedded chert.We interpret the Upper Triassic siliceous micrite as deep-water sediment deposited in a pelagic setting within a mid-oceanic realm. This interpretation implies that short-lived fluctuations of the carbonate compensation depth occurred in Carnian to early Norian time, probably due to the intermittent accumulation of lime mud derived from calcareous nannoplankton.The Upper Triassic siliceous micrite-chert facies differs in containing siliceous micrite from the coeval bedded chert of the oceanic plate stratigraphy of the Mino terrane. We postulate that compared with the Upper Triassic chert, the siliceous micrite-chert facies accumulated on a topographic high at relatively shallow water-depths, probably near the carbonate compensation depth. The Upper Triassic siliceous micrite-chert facies is inferred to have accumulated on the lower slope of a mid-oceanic seamount. We suggest an alternative age of Early Permian or Middle-Late Triassic for the formation of the mid-oceanic seamount. Abstract

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“…austroalpina Campania Mancinelli et al, 2004Musandan Maurer et al, 2007Kršlenica Michalík et al, 19931 Ishibashi 19691997Ishibashi 19691997Ishibashi 1969, 1998 , 2004; Onoue and Sano, 2007;, 2014 radiolarian lime-mudstone thin-shelled bivalve mudstone-wackestone , 2010 Onoue and Sano, 2007;Onoue and Yoshida, 2010-Sicily Bellanca et al, 1995Hauser et al, 2001Enos et al, 1998Martini et al, 2000-British Columbia Carlisle and Susuki, 1974Desrochers andOrchard, 1991 Onoue andOnoue and Yoshida, 2010;Yoshida, 2010;5.2-11.3 mm/kyr , 2008 litho-bioclastic packstone peloidal-bioclastic packstone litho-bioclastic packstone peloidal-bioclastic packstone Agathammina aff. austroalpina Endoteba sp.…”

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confidence: 99%