Lower Triassic anachronistic facies capping the Qinghai-Tibet Plateau seamount: Implications for the extension of extraordinary oceanic conditions deep into the interior Tethys Ocean

Deng, Baozhu; Wang, Yongbiao; Woods, Adam D.; Li, Guoshan; Liao, Wei

doi:10.1016/j.gloplacha.2015.06.009

Cited by 4 publications

(1 citation statement)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Deng et al . 2015) is generally explained by specific environmental conditions and biotic controls after the end-Permian mass extinction as well as uniformitarian sedimentologic factors (Woods, 2014). Such deposits occur in the Olenekian part of Mogilata Fm (Fig.…”

Section: Controls On the Triassic Carbonate Ramp Systemmentioning

confidence: 99%

Global, regional and local controls on the development of a Triassic carbonate ramp system, Western Balkanides, Bulgaria

Chatalov

2016

Geol. Mag.

View full text Add to dashboard Cite

The Early to Late Triassic development of a carbonate ramp system in the subtropical belt of the NW Tethys was controlled by the interplay of several global and regional factors: geotectonic setting (slow continuous subsidence on a passive continental margin), antecedent topography (low-gradient relief inherited from preceding depositional regime), climate and oceanography (warm and dry climatic conditions, storm influence), relative sea-level changes (Olenekian to Anisian eustatic rise, middle Anisian to early Carnian sea-level fall), lack of frame-builders (favouring the maintenance of ramp morphology), and carbonate production (abundant formation of lime mud, non-skeletal grains and marine cements, development of diverse biota controlled by biological evolution and environmental conditions). Elevated palaeorelief affected the ramp initialization on a local scale, while autogenic processes largely controlled the formation of peritidal cyclicity during the early stage of ramp retrogradation. Probably fault-driven differential subsidence caused a local distal steepening of the ramp profile in middle–late Anisian time. The generally favourable conditions promoted long-term maintenance of homoclinal ramp morphology and accumulation of carbonate sediments having great maximum thickness (~500 m). Shutdown of the carbonate factory and demise of the ramp system in the early Carnian resulted from relative sea-level fall and subsequent emergence. After a period of subaerial exposure with minor karstification, the deposition of continental quartz arenites suggests the possible effect of the Carnian Pluvial Episode.

show abstract

Section: Controls On the Triassic Carbonate Ramp Systemmentioning

confidence: 99%