Global oolite deposits across the Permian–Triassic boundary: A synthesis and implications for palaeoceanography immediately after the end-Permian biocrisis

Li, Fēi; Yan, Jiaxin; Chen, Zhong‐Qiang; Ogg, James G.; Tian, Li; Korngreen, Dorit; Liu, Ke; Ma, Zhong‐Qi; Woods, Adam D.

doi:10.1016/j.earscirev.2014.12.006

Cited by 71 publications

(24 citation statements)

References 147 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Early Triassic microbialites in the Persian Gulf Basin. Thus, the alternating oolites and microbialites is a widespread pattern at the Permian-Triassic transition in shallow marine carbonate settings across the Tethys and Panthalassa oceans (Li et al, 2015a(Li et al, , 2015b, which strengthens the role of carbonate saturation and eustatic sea-level changes among the parameters that influenced the onset of the microbial limestone. However, by no means does this exclude the intercalation of short acidification events.…”

Section: Accepted Manuscriptmentioning

confidence: 95%

“…For instance at Yudongzi (Sichuan Province), the microbialite unit is overlain by a regressive oncolitic and oolitic limestone (Kershaw et al, 2012a). In addition, microbialite units in Chongyang (Hubei Province), Cili (Hunan Province), Xiushui (Jiangxi Province) (Yang et al, 2011;Li et al, 2015b) and Hochang (GBG) (Lehrmann et al, 2015a) are also overlain by oolitic limestone (Yang et al, 2011;Li et al, 2015b). In such sections with oolitic limestone, cessation of the microbial limestone cannot be assigned to a change in carbonate supersaturation, but resulted again from a change in bathymetry.…”

Section: Cessation Of the Betm (Units 7 And 8)mentioning

confidence: 99%

“…Triassic. In conjunction with reduced bathymetry and higher energy, carbonate supersaturation (Groves and Calner, 2004;Calner, 2005;Li et al, 2015aLi et al, , 2015b A C C E P T E D M A N U S C R I P T Deng et al, 2016) also contributed to the local production of oolites overlying the BETM.…”

Section: Water Chemical Compositionmentioning

confidence: 99%

See 2 more Smart Citations

Onset, development, and cessation of basal Early Triassic microbialites (BETM) in the Nanpanjiang pull-apart Basin, South China Block

et al. 2017

View full text Add to dashboard Cite

New investigations in the Nanpanjiang Basin indicate that the onset of the iconic microbialites associated with the Paleozoic-Mesozoic boundary was Early Triassic in age. Bathymetry (water agitation, oxygenation, light penetration) and clastic load are shown to have exerted a direct control on the growth of microbialites. Carbonate supersaturation is also required for the deposition of the microbialites. Bathymetric control is further corroborated by the topographic inheritance of a latest Permian pull-apart basin into Early Triassic times, with a distribution of basal Early Triassic microbialites (BETM) restricted to uplifted blocks. This control is also reflected by the accumulation of carbonaceous black shales in adjacent troughs. The geographically most extensive Nanpanjiang BETM bloomed on a large NW-SE trending uplifted block exceeding 12,000 km2 (Luolou Platform) centered on northwestern Guangxi. Post-Triassic displacements along the Youjiang Fault obscure the paleogeographic relation of BETM exposed west of this fault. Triassic foraminifers occur in the basal most BETM episode, which is locally bracketed by high-energy grainstones made of reworked Permian foraminifers. Therefore, the Permian-Triassic boundary (PTB) is within the unconformity that separates the Late Permian Heshan Fm. from the basal most BETM. Where accommodation space was sufficient, up to five event surfaces are associated with the unconformity. Microfacies analysis supports chemical dissolution but did not reveal evidence for subaerial erosion, although intercalated grainstone made of Permian foraminifers indicate reworking. Chemical dissolution and mechanical erosion both conceivably contributed to the genesis of the unconformity. The upward shift from tabulated to domical microbial build-ups is accompanied by accumulation of coquinoid lenses between domes, which indicates deepening of the Luolou Platform BETM. The main drowning resulting from both regional tectonic subsidence and a global sea-level rise led to the cessation of the BETM that were buried under predominant fine siliciclastics. Any concomitant change in sea water chemistry appears unlikely.

show abstract

Section: Accepted Manuscriptmentioning

confidence: 95%

Section: Cessation Of the Betm (Units 7 And 8)mentioning

confidence: 99%

See 1 more Smart Citation

Onset, development, and cessation of basal Early Triassic microbialites (BETM) in the Nanpanjiang pull-apart Basin, South China Block

et al. 2017

View full text Add to dashboard Cite

show abstract

“…At the PTB, evidence of both framboidal and euhedral pyrite suggest both syngenetic and precipitation formation. Euhedral formation through precipitation formation is probably due to the occurrence of an oolite factory at the PTB from the decrease in skeletal CO 3 2- (Haas et al 2007;Li et al 2015). The presence of oolite and euhedral pyrite along with a coral gap, may serve as evidence of widespread ocean acidification in the Palaeotethys during the extinction interval (Li et al 2015).…”

Section: Geochemical Investigationsmentioning

confidence: 99%

New results of microfaunal and geochemical investigations in the Permian–Triassic boundary interval from the Jadar Block (NW Serbia)

Sudar¹,

Kolar‐Jurkovšek²,

Nestell³

et al. 2018

Geologica Carpathica

View full text Add to dashboard Cite

Detail results of microfaunal, sedimentological and geochemical investigations are documented from a newly discovered section of the Permian–Triassic boundary (PTB) interval in the area of the town of Valjevo (northwestern Serbia). The presence of various and abundant microfossils (conodonts, foraminifers, and ostracodes) found in the Upper Permian “Bituminous limestone” Formation enabled a determination of the ChanghsingianHindeodus praeparvusconodont Zone. This paper is the first report of latest Permian strata from the region, as well as from all of Serbia, where the PTB interval sediments have been part of a complex/integrated study by means of biostratigraphy and geochemistry.

show abstract

“…Ooids also occur in GBG sections but as thicker beds of oolitic grainstone (e.g. Li et al, 2015;Tian et al, 2015;Li et al, 2013;Lehrmann et al, 2012). The co-occurrence of ooids, typically produced in agitated conditions and micrite, suggesting quiet energy, at Dala implies the ooids may have formed in shallower waters and then been transported into the depositional setting.…”

Section: Geological Settings and Facies Descriptionmentioning

confidence: 99%

Conodonts and Carbon Isotopes during the Permian-Triassic Transition on the Napo Platform, South China

et al. 2019

View full text Add to dashboard Cite

show abstract

Global oolite deposits across the Permian–Triassic boundary: A synthesis and implications for palaeoceanography immediately after the end-Permian biocrisis

Cited by 71 publications

References 147 publications

Onset, development, and cessation of basal Early Triassic microbialites (BETM) in the Nanpanjiang pull-apart Basin, South China Block

Onset, development, and cessation of basal Early Triassic microbialites (BETM) in the Nanpanjiang pull-apart Basin, South China Block

New results of microfaunal and geochemical investigations in the Permian–Triassic boundary interval from the Jadar Block (NW Serbia)

Conodonts and Carbon Isotopes during the Permian-Triassic Transition on the Napo Platform, South China

Contact Info

Product

Resources

About