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David Bond

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David Bond

Palaeoenvironmental Scientist and Schools Liason Officer


Marine snowstorm during the Permian-Triassic mass extinction (2023)
Journal Article
Grasby, S. E., Ardakani, O. H., Liu, X., Bond, D. P. G., Wignall, P. B., & Strachan, L. J. (in press). Marine snowstorm during the Permian-Triassic mass extinction. Geology, https://doi.org/10.1130/G51497.1

The Permian-Triassic mass extinction (PTME) interval is marked by major excursions in both inorganic and organic carbon (C) isotopes. Carbon cycle models predict that these trends were driven by large increases in productivity, yet organic C-rich roc... Read More about Marine snowstorm during the Permian-Triassic mass extinction.

The great catastrophe: causes of the Permo-Triassic marine mass extinction (2023)
Journal Article
Wignall, P. B., & Bond, D. P. G. (2024). The great catastrophe: causes of the Permo-Triassic marine mass extinction. National Science Review, 11(1), Article nwad273. https://doi.org/10.1093/nsr/nwad273

The marine losses during the Permo-Triassic mass extinction were the worst ever experienced. All groups were badly affected, especially amongst the benthos (e.g. brachiopods, corals, bryozoans, foraminifers, ostracods). Planktonic populations underwe... Read More about The great catastrophe: causes of the Permo-Triassic marine mass extinction.

How Large Igneous Provinces Have Killed Most Life on Earth—Numerous Times (2023)
Journal Article
Grasby, S. E., & Bond, D. P. (2023). How Large Igneous Provinces Have Killed Most Life on Earth—Numerous Times. Elements: An International Magazine of Mineralogy, Geochemistry, and Petrology, 19(5), 276-281. https://doi.org/10.2138/gselements.19.5.276

Evolution has not been a simple path. Since the first appearance of complex life, there have been several mass extinctions on Earth. This was exemplified by the most severe event during the Phanerozoic, the end-Permian mass extinction that occurred 2... Read More about How Large Igneous Provinces Have Killed Most Life on Earth—Numerous Times.

Global oceanic anoxia linked with the Capitanian (Middle Permian) marine mass extinction (2023)
Journal Article
Song, H., Algeo, T., Song, H., Tong, J., Wignall, P., Bond, D. P., …Anbar, A. (2023). Global oceanic anoxia linked with the Capitanian (Middle Permian) marine mass extinction. Earth and planetary science letters, 610, Article 118128. https://doi.org/10.1016/j.epsl.2023.118128

The timing and causation of the Capitanian (late Middle Permian) biocrisis remain controversial. Here, a detailed uranium-isotopic (δ238U) profile was generated for the mid-Capitanian to lower Wuchiapingian of the Penglaitan section (the Guadalupian/... Read More about Global oceanic anoxia linked with the Capitanian (Middle Permian) marine mass extinction.

Middle Jurassic terrestrial environmental and floral changes linked to volcanism: Evidence from the Qinghai-Tibet Plateau, China (2023)
Journal Article
Zhang, P., Yang, M., Lu, J., Jiang, Z., Zhou, K., Liu, H., …Bond, D. P. (2023). Middle Jurassic terrestrial environmental and floral changes linked to volcanism: Evidence from the Qinghai-Tibet Plateau, China. Global and planetary change, 223, Article 104094. https://doi.org/10.1016/j.gloplacha.2023.104094

The breakup of Pangaea and the rapid opening of the Ligurian and Central Atlantic oceans during the Middle Jurassic resulted in widespread volcanism accompanied by significant shifts in global environments, climates, and floras. Although major volcan... Read More about Middle Jurassic terrestrial environmental and floral changes linked to volcanism: Evidence from the Qinghai-Tibet Plateau, China.

End-Permian terrestrial ecosystem collapse in North China: evidence from palynology and geochemistry (2023)
Journal Article
Zhang, P., Yang, M., Lu, J., Bond, D. P., Shao, L., Zhou, K., …Hilton, J. (2023). End-Permian terrestrial ecosystem collapse in North China: evidence from palynology and geochemistry. Global and planetary change, 222, Article 104070. https://doi.org/10.1016/j.gloplacha.2023.104070

The Permian-Triassic Mass Extinction (ca. 252 Ma; PTME) is the most severe biocrisis of the Phanerozoic in both the oceans and on land. The crisis saw the collapse of terrestrial ecosystems in low, mid and high latitudes. Although terrestrial plant l... Read More about End-Permian terrestrial ecosystem collapse in North China: evidence from palynology and geochemistry.

An astronomical timescale for the Permian-Triassic mass extinction reveals a two-step, million-year-long terrestrial crisis in South China (2023)
Journal Article
Hua, F., Shao, L., Zhang, T., Bond, D. P., Wang, X., Wang, J., …Hilton, J. (2023). An astronomical timescale for the Permian-Triassic mass extinction reveals a two-step, million-year-long terrestrial crisis in South China. Earth and planetary science letters, 605, Article 118035. https://doi.org/10.1016/j.epsl.2023.118035

The Permian-Triassic Mass Extinction (PTME) is the greatest biotic crisis of the Phanerozoic. In terrestrial settings, the PTME appears to have been diachronous and it has been suggested that losses initiated before the marine crisis. We examine orga... Read More about An astronomical timescale for the Permian-Triassic mass extinction reveals a two-step, million-year-long terrestrial crisis in South China.

Rapid marine oxygen variability: Driver of the Late Ordovician mass extinction (2022)
Journal Article
Kozik, N. P., Young, S. A., Newby, S. M., Liu, M., Chen, D., Hammarlund, E., …Owens, J. D. (2022). Rapid marine oxygen variability: Driver of the Late Ordovician mass extinction. Science Advances, 8(46), eabn8345. https://doi.org/10.1126/sciadv.abn8345

The timing and connections between global cooling, marine redox conditions, and biotic turnover are underconstrained for the Late Ordovician. The second most severe mass extinction occurred at the end of the Ordovician period, resulting in ~85% loss... Read More about Rapid marine oxygen variability: Driver of the Late Ordovician mass extinction.

Dynamic ocean redox conditions during the end-Triassic mass extinction: Evidence from pyrite framboids (2022)
Journal Article
Li, J., Song, H., Tian, L., Bond, D. P., Song, H., Du, Y., …Tong, J. (2022). Dynamic ocean redox conditions during the end-Triassic mass extinction: Evidence from pyrite framboids. Global and planetary change, 218, Article 103981. https://doi.org/10.1016/j.gloplacha.2022.103981

The end-Triassic (∼201 Mya) records one of the five largest mass extinction events of the Phanerozoic. Extinction losses were coincident with large igneous province volcanism in the form of the Central Atlantic Magmatic Province (CAMP) and major carb... Read More about Dynamic ocean redox conditions during the end-Triassic mass extinction: Evidence from pyrite framboids.

Two deep marine oxygenation events during the Permian-Triassic boundary interval in South China: relationship with ocean circulation and marine primary productivity (2022)
Journal Article
Ge, Y., & Bond, D. P. (2022). Two deep marine oxygenation events during the Permian-Triassic boundary interval in South China: relationship with ocean circulation and marine primary productivity. Earth-Science Reviews, 234, Article 104220. https://doi.org/10.1016/j.earscirev.2022.104220

Marine redox conditions through the Permian-Triassic (P-T) boundary interval have been intensively studied in South China with different redox proxies and from different sections. However, the resultant interpretations are inconsistent and sometimes... Read More about Two deep marine oxygenation events during the Permian-Triassic boundary interval in South China: relationship with ocean circulation and marine primary productivity.