Investigating the Paleoecological Consequences of Supercontinent Breakup: Sponges Clean Up in the Early Jurassic

Corsetti, Frank A.; Ritterbush, Kathleen A.; Bottjer, David J.; Greene, Sarah E.; Ibarra, Yadira; Yager, Joyce A.; West, A. Joshua; Berelson, William M.; Rosas, Silvia; Becker, T. W.; Levine, Naomi M.; Loyd, S. J.; Martindale, Rowan C.; Petryshyn, Victoria A.; Carroll, Nathan; Petsios, Elizabeth; Piazza, Olivia; Pietsch, Carlie; Stellmann, J.; Thompson, Jeffrey R.; Washington, Kirstin A.; Wilmeth, Dylan T.

doi:10.2110/sedred.2015.2.4

Cited by 13 publications

(5 citation statements)

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“…Using the long-term average Rhaetian sedimentation rates of the LC and LNR age models (Fig. 3), this stressed interval had a duration of ~400 to 800 kyr, which coincides reasonably well with both the duration of the CAMP eruptions (~600 kyr, Blackburn et al, 2013) and the duration of the ecological disturbance seen in other Panthalassic sections (Ritterbush et al, 2014;Corsetti et al, 2015). However, this is orders of magnitude longer than the residence time of nitrogen in the ocean (~3000 yr; Gruber, 2008) (Algeo et al, 2014), however the Late Triassic world had been free of permanent polar ice for millions of years, and it is difficult to associate this event with an increase in flooded continental area that would have driven an increase in sedimentary denitrification.…”

Section: Timing and Causality Of Triassic-jurassic Transition Eventssupporting

confidence: 59%

Testing the limits in a greenhouse ocean: Did low nitrogen availability limit marine productivity during the end-Triassic mass extinction?

Schoepfer

Algeo

Ward

et al. 2016

Earth and Planetary Science Letters

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The end-Triassic mass extinction has been characterized as a 'greenhouse extinction', related to rapid atmospheric warming and associated changes in ocean circulation and oxygenation. The response of the marine nitrogen cycle to these oceanographic changes, and the extent to which mass extinction intervals represent a deviation in nitrogen cycling from other ice-free 'greenhouse' periods of Earth history, remain poorly understood. The well-studied Kennecott Point section in Haida Gwaii,

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Section: Timing and Causality Of Triassic-jurassic Transition Eventssupporting

confidence: 59%

Testing the limits in a greenhouse ocean: Did low nitrogen availability limit marine productivity during the end-Triassic mass extinction?

Schoepfer

Algeo

Ward

et al. 2016

Earth and Planetary Science Letters

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“…3), with detailed biostratigraphy (the ammonite Psiloceras spelae; Guex et al, 2004) indicating the Triassic-Jurassic boundary within the upper Gabbs Formation. Several studies of the organic carbon (C) isotope signature (δ 13 Corg) at the Ferguson Hill section (Bartolini et al, 2012;Guex et al, 2004;Ward et al, 2007;Corsetti et al, 2015) document a negative excursion in δ 13 Corg at the extinction horizon.…”

Section: New York Canyon Nevada Usamentioning

confidence: 99%

Mercury contents and isotope ratios from diverse depositional environments across the Triassic–Jurassic Boundary: Towards a more robust mercury proxy for large igneous province magmatism

Yager

West

Thibodeau

et al. 2021

Earth-Science Reviews

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“…Reduced oxygen solubility and greater biological oxygen demand in warmer water played roles, but deoxygenation was driven primarily by nutrient loading that led to eutrophication and expansion of oxygen-minimum zones (Algeo et al 2011, Meyer et al 2008, Ostrander et al 2017, Trabucho Alexandre et al 2010. Ultimately, nutrient loading resulted from feedbacks during climate warming, a consequence of riverine phosphorus and other nutrient elements delivered by enhanced silicate weathering, as suggested by changes in the silica cycle (Corsetti et al 2015, Penman 2016) and tracers such as osmium isotopes (Bottini et al 2012, Dickson et al 2015, Percival et al 2016) and lithium isotopes (Pogge von Strandmann et al 2013, Sun et al 2018.…”

Section: Low-oxygen Conditionsmentioning

confidence: 99%

Flood Basalts and Mass Extinctions

Clapham

Renne

2019

Annu. Rev. Earth Planet. Sci.

102

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Flood basalts were Earth's largest volcanic episodes that, along with related intrusions, were often emplaced rapidly and coincided with environmental disruption: oceanic anoxic events, hyperthermals, and mass extinction events. Volatile emissions, both from magmatic degassing and vaporized from surrounding rock, triggered short-term cooling and longer-term warming, ocean acidification, and deoxygenation. The magnitude of biological extinction varied considerably, from small events affecting only select groups to the largest extinction of the Phanerozoic, with less-active organisms and those with less-developed respiratory physiology faring especially poorly. The disparate environmental and biological outcomes of different flood basalt events may at first order be explained by variations in the rate of volatile release modulated by longer trends in ocean carbon cycle buffering and the composition of marine ecosystems. Assessing volatile release, environmental change, and biological extinction at finer temporal resolution should be a top priority to refine ancient hyperthermals as analogs for anthropogenic climate change. ▪ Flood basalts, the largest volcanic events in Earth history, triggered dramatic environmental changes on land and in the oceans. ▪ Rapid volcanic carbon emissions led to ocean warming, acidification, and deoxygenation that often caused widespread animal extinctions. ▪ Animal physiology played a key role in survival during flood basalt extinctions, with reef builders such as corals being especially vulnerable. ▪ The rate and duration of volcanic carbon emission controlled the type of environmental disruption and the severity of biological extinction.

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Investigating the Paleoecological Consequences of Supercontinent Breakup: Sponges Clean Up in the Early Jurassic

Cited by 13 publications

References 0 publications

Testing the limits in a greenhouse ocean: Did low nitrogen availability limit marine productivity during the end-Triassic mass extinction?

Testing the limits in a greenhouse ocean: Did low nitrogen availability limit marine productivity during the end-Triassic mass extinction?

Mercury contents and isotope ratios from diverse depositional environments across the Triassic–Jurassic Boundary: Towards a more robust mercury proxy for large igneous province magmatism

Flood Basalts and Mass Extinctions

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