All Outputs (246)

The role of lithospheric thickness in the formation of ocean islands and seamounts: contrasts between the Louisville and Emperor-Hawaiian hotspot trails (2020)
Journal Article
Fitton, J. G., Williams, R., Barry, T. L., & Saunders, A. D. (2020). The role of lithospheric thickness in the formation of ocean islands and seamounts: contrasts between the Louisville and Emperor-Hawaiian hotspot trails. Journal of Petrology, 61(11-12), Article egaa111. https://doi.org/10.1093/petrology/egaa111

The Hawaii-Emperor and Louisville seamounts form the two most prominent time-progressive hotspot trails on Earth. Both formed over a similar time interval on lithosphere with a similar range of ages and thickness. The Hawaii-Emperor seamounts are lar... Read More about The role of lithospheric thickness in the formation of ocean islands and seamounts: contrasts between the Louisville and Emperor-Hawaiian hotspot trails.

Fracture attribute scaling and connectivity in the Devonian Orcadian Basin with implications for geologically equivalent sub-surface fractured reservoirs (2020)
Journal Article
Dichiarante, A. M., McCaffrey, K. J. W., Holdsworth, R. E., Bjørnarå, T. I., & Dempsey, E. D. (2020). Fracture attribute scaling and connectivity in the Devonian Orcadian Basin with implications for geologically equivalent sub-surface fractured reservoirs. Solid Earth, 11(6), 2221-2244. https://doi.org/10.5194/se-11-2221-2020

Fracture attribute scaling and connectivity datasets from analogue systems are widely used to inform sub-surface fractured reservoir models in a range of geological settings. However, significant uncertainties are associated with the determination of... Read More about Fracture attribute scaling and connectivity in the Devonian Orcadian Basin with implications for geologically equivalent sub-surface fractured reservoirs.

Tellurium in Late Permian-Early Triassic Sediments as a Proxy for Siberian Flood Basalt Volcanism (2020)
Journal Article
Regelous, M., Regelous, A., Grasby, S. E., Bond, D. P., Haase, K. M., Gleißner, S., & Wignall, P. B. (2020). Tellurium in Late Permian-Early Triassic Sediments as a Proxy for Siberian Flood Basalt Volcanism. Geochemistry, geophysics, geosystems G³, 21(11), Article e2020GC009064. https://doi.org/10.1029/2020GC009064

We measured the concentrations of trace elements in Late Permian to Early Triassic sediments from Spitsbergen. High mercury concentrations in sediments from the level of the Permo-Triassic Mass Extinction (PTME) at this location were previously attri... Read More about Tellurium in Late Permian-Early Triassic Sediments as a Proxy for Siberian Flood Basalt Volcanism.

Stress fields of ancient seismicity recorded in the dynamic geometry of pseudotachylyte in the Outer Hebrides Fault Zone, UK (2020)
Journal Article
Campbell, L., Lloyd, G., Phillips, R., Walcott, R., & Holdsworth, R. (2021). Stress fields of ancient seismicity recorded in the dynamic geometry of pseudotachylyte in the Outer Hebrides Fault Zone, UK. Journal of the Geological Society, 178(1), Article jgs2020-101. https://doi.org/10.1144/jgs2020-101

Heterogeneous sequences of exhumed fault rocks preserve a record of the long-term evolution of fault strength and deformation behaviour during prolonged tectonic activity. Along the Outer Hebrides Fault Zone (OHFZ) in NW Scotland, numerous pseudotach... Read More about Stress fields of ancient seismicity recorded in the dynamic geometry of pseudotachylyte in the Outer Hebrides Fault Zone, UK.

Size variations in foraminifers from the early Permian to the Late Triassic: Implications for the Guadalupian-Lopingian and the Permian-Triassic mass extinctions (2020)
Journal Article
Feng, Y., Song, H., & Bond, D. P. (2020). Size variations in foraminifers from the early Permian to the Late Triassic: Implications for the Guadalupian-Lopingian and the Permian-Triassic mass extinctions. Paleobiology, 46(4), 511-532. https://doi.org/10.1017/pab.2020.37

The final 10 Myr of the Paleozoic saw two of the biggest biological crises in Earth history: the middlePermian extinction (often termed the Guadalupian–Lopingian extinction [GLE]) that was followed 7–8 Myr later by Earth's most catastrophic loss of d... Read More about Size variations in foraminifers from the early Permian to the Late Triassic: Implications for the Guadalupian-Lopingian and the Permian-Triassic mass extinctions.

A bigger splat: The catastrophic geology of a 1.2-b.y.-old terrestrial megaclast (2020)
Journal Article
Killingback, Z., Holdsworth, R. E., Walker, R. J., Nielsen, S., Dempsey, E., & Hardman, K. (2020). A bigger splat: The catastrophic geology of a 1.2-b.y.-old terrestrial megaclast. Geology, https://doi.org/10.1130/G48079.1

Rockfalls are relatively little described from the ancient geological record, likely due to their poor preservation potential. At Clachtoll, northwest Scotland, a megaclast (100 m × 60 m × 15 m) of Neoarchean Lewisian gneiss with an estimated mass of... Read More about A bigger splat: The catastrophic geology of a 1.2-b.y.-old terrestrial megaclast.

Migration controls extinction and survival patterns of foraminifers during the Permian-Triassic crisis in South China (2020)
Journal Article
Benton, M. J., Liu, X., Song, H., Bond, D. P., Tong, J., & Benton, M. (2020). Migration controls extinction and survival patterns of foraminifers during the Permian-Triassic crisis in South China. Earth-Science Reviews, 209, Article 103329. https://doi.org/10.1016/j.earscirev.2020.103329

The Permian-Triassic mass extinction, the greatest biotic crisis in Earth history, triggered the complete replacement of ecosystems with the 5–10% surviving species giving rise to the Mesozoic fauna. Despite a long history of systematic studies on Pe... Read More about Migration controls extinction and survival patterns of foraminifers during the Permian-Triassic crisis in South China.

The nature and significance of rift-related, near-surface fissure fill networks in fractured carbonates below regional unconformities (2020)
Journal Article
Hardman, K., Holdsworth, R. E., Dempsey, E., & McCaffrey, K. (2020). The nature and significance of rift-related, near-surface fissure fill networks in fractured carbonates below regional unconformities. Journal of the Geological Society, https://doi.org/10.1144/jgs2020-074

Hosted in carbonate and crystalline basement rocks below regional unconformities, fissure-fill networks are a widely recognized, but relatively little described near-surface phenomenon (< 1-2km). Faults and fractures in otherwise tight Devonian carbo... Read More about The nature and significance of rift-related, near-surface fissure fill networks in fractured carbonates below regional unconformities.

A bedform phase diagram for dense granular currents (2020)
Journal Article
Smith, G., Rowley, P., Williams, R., Giordano, G., Trolese, M., Silleni, A., Parsons, D. R., & Capon, S. (2020). A bedform phase diagram for dense granular currents. Nature communications, 11(1), Article 2873. https://doi.org/10.1038/s41467-020-16657-z

Pyroclastic density currents (PDCs) are a life-threatening volcanic hazard. Our understanding and hazard assessments of these flows rely on interpretations of their deposits. The occurrence of stratified layers, cross-stratification, and bedforms in... Read More about A bedform phase diagram for dense granular currents.

Late Ordovician mass extinction caused by volcanism, warming, and anoxia, not cooling and glaciation (2020)
Journal Article
Bond, D. P., & Grasby, S. E. (2020). Late Ordovician mass extinction caused by volcanism, warming, and anoxia, not cooling and glaciation. Geology, 48(8), 777-781. https://doi.org/10.1130/G47377.1

The Ordovician saw major diversification in marine life abruptly terminated by the Late Ordovician mass extinction (LOME). Around 85% of species were eliminated in two pulses 1 m.y. apart. The first pulse, in the basal Hirnantian, has been linked to... Read More about Late Ordovician mass extinction caused by volcanism, warming, and anoxia, not cooling and glaciation.

Pyroxene low-temperature plasticity and fragmentation as a record of seismic stress evolution in the lower crust (2020)
Presentation / Conference Contribution
Campbell, L., & Menegon, L. (2020, May). Pyroxene low-temperature plasticity and fragmentation as a record of seismic stress evolution in the lower crust. Presented at European Geosciences Union General Assembly 202, Online

Seismic rupture of the lower continental crust requires a high failure stress, given large lithostatic stresses and potentially strong rheologies. Several mechanisms have been proposed to generate high stresses at depth, including local amplification... Read More about Pyroxene low-temperature plasticity and fragmentation as a record of seismic stress evolution in the lower crust.

The Nusfjord exhumed earthquake source (Lofoten, Norway): deep crustal seismicity driven by bending of the lower plate during continental collision (2020)
Presentation / Conference Contribution
Menegon, L., Campbell, L., Fagereng, Å., & Pennacchioni, G. (2020, May). The Nusfjord exhumed earthquake source (Lofoten, Norway): deep crustal seismicity driven by bending of the lower plate during continental collision. Presented at European Geosciences Union (EGU) General Assembly 2020, Online

The origin of earthquakes in the lower crust at depth of 20-40 km, where dominantly ductile deformation is expected, is highly debated. Exhumed networks of lower crustal coeval pseudotachylytes (quenched frictional melt produced during seismic slip)... Read More about The Nusfjord exhumed earthquake source (Lofoten, Norway): deep crustal seismicity driven by bending of the lower plate during continental collision.

Earthquake nucleation in the lower crust by local stress amplification (2020)
Journal Article
Campbell, L. R., Menegon, L., Fagereng, Å., & Pennacchioni, G. (2020). Earthquake nucleation in the lower crust by local stress amplification. Nature communications, 11(1), Article 1322. https://doi.org/10.1038/s41467-020-15150-x

Deep intracontinental earthquakes are poorly understood, despite their potential to cause significant destruction. Although lower crustal strength is currently a topic of debate, dry lower continental crust may be strong under high-grade conditions.... Read More about Earthquake nucleation in the lower crust by local stress amplification.

The nature and age of Mesoproterozoic strike-slip faulting based on Re-Os geochronology of syn-tectonic copper mineralization, Assynt Terrane, NW Scotland (2020)
Journal Article
Holdsworth, R. E., Selby, D., Dempsey, E., Scott, L., Hardman, K., Fallick, A., & Bullock, R. (in press). The nature and age of Mesoproterozoic strike-slip faulting based on Re-Os geochronology of syn-tectonic copper mineralization, Assynt Terrane, NW Scotland. Journal of the Geological Society, jgs2020-011. https://doi.org/10.1144/jgs2020-011

A nutrient control on marine anoxia during the end-Permian mass extinction (2020)
Journal Article
Schobben, M., Foster, W. J., Sleveland, A. R., Zuchuat, V., Svensen, H., Planke, S., Bond, D. P., Marcelis, F., Newton, R. J., Wignall, P. B., & Poulton, S. W. (2020). A nutrient control on marine anoxia during the end-Permian mass extinction. Nature Geoscience, https://doi.org/10.1038/s41561-020-0622-1

© 2020, The Author(s), under exclusive licence to Springer Nature Limited. Oxygen deprivation and hydrogen sulfide toxicity are considered potent kill mechanisms during the mass extinction just before the Permian–Triassic boundary (~251.9 million yea... Read More about A nutrient control on marine anoxia during the end-Permian mass extinction.

The nature and age of basement host rocks and fissure fills in the Lancaster field fractured reservoir, West of Shetland (2019)
Journal Article
Holdsworth, R. E., Trice, R., Hardman, K., McCaffrey, K. J., Morton, A., Frei, D., Dempsey, E., Bird, A., & Rogers, S. (2020). The nature and age of basement host rocks and fissure fills in the Lancaster field fractured reservoir, West of Shetland. Journal of the Geological Society, 177(5), 1057-1073. https://doi.org/10.1144/jgs2019-142

Hosting up to 3.3 billion barrels of oil in place, the upfaulted Precambrian crystalline rocks of the Lancaster field, offshore west of Shetland, give key insights into how fractured hydrocarbon reservoirs can form in such old rocks. The Neoarchean (... Read More about The nature and age of basement host rocks and fissure fills in the Lancaster field fractured reservoir, West of Shetland.

Rupture geometries in anisotropic amphibolite recorded by pseudotachylytes in the Gairloch Shear Zone, NW Scotland (2019)
Journal Article
Campbell, L. R., Phillips, R. J., Walcott, R. C., & Lloyd, G. E. (2019). Rupture geometries in anisotropic amphibolite recorded by pseudotachylytes in the Gairloch Shear Zone, NW Scotland. Scottish Journal of Geology, 55(2), 75-92. https://doi.org/10.1144/sjg2019-003

Recent earthquakes involving complex multi-fault rupture have increased our appreciation of the variety of rupture geometries and fault interactions that occur within the short duration of coseismic slip. Geometrical complexities are intrinsically li... Read More about Rupture geometries in anisotropic amphibolite recorded by pseudotachylytes in the Gairloch Shear Zone, NW Scotland.

A constant Chinese Loess Plateau dust source since the late Miocene (2019)
Journal Article
Bird, A., Millar, I., Rodenburg, T., Stevens, T., Rittner, M., Vermeesch, P., & Lu, H. (2020). A constant Chinese Loess Plateau dust source since the late Miocene. Quaternary science reviews, 227, 106042. https://doi.org/10.1016/j.quascirev.2019.106042

© 2019 The Authors The Pliocene-Pleistocene boundary marks a major change in global climate and East Asian monsoon dynamic. However, the role of the global atmospheric dust-cycle over this time is unclear; in particular the degree to which changes in... Read More about A constant Chinese Loess Plateau dust source since the late Miocene.

The composition of the middle Miocene (15 Ma) Namling paleoflora, South Central Tibet, in the context of other Tibetan and Himalayan Floras (2019)
Journal Article
Shuang-Xing, G., Spicer, R. A., Widdowson, M., Herman, A. B., & Domogatskaya, K. V. (2019). The composition of the middle Miocene (15 Ma) Namling paleoflora, South Central Tibet, in the context of other Tibetan and Himalayan Floras. Review of palaeobotany and palynology, 271, Article 104088. https://doi.org/10.1016/j.revpalbo.2019.06.011

Molecular phylogeneticists often find that a diversification of western Chinese plant taxa took place in the Miocene and link this to the Neogene uplift of the Tibetan Plateau. This link is made despite abundant geological evidence showing that a hig... Read More about The composition of the middle Miocene (15 Ma) Namling paleoflora, South Central Tibet, in the context of other Tibetan and Himalayan Floras.

Phosphorus-cycle disturbances during the Late Devonian anoxic events (2019)
Journal Article
Percival, L., Bond, D. P., Rakociński, M., Marynowski, L., Hood, A. V., Adatte, T., Spangenberg, J. E., & Föllmi, K. B. (2020). Phosphorus-cycle disturbances during the Late Devonian anoxic events. Global and planetary change, 184, Article 103070. https://doi.org/10.1016/j.gloplacha.2019.103070

The Late Devonian was marked by repeated faunal crises and episodes of geographically widespread marine anoxia, and featured one of the ‘Big Five’ mass extinctions of the Phanerozoic Aeon during the Frasnian–Famennian transition. However, the process... Read More about Phosphorus-cycle disturbances during the Late Devonian anoxic events.