All Outputs (13)

Anatomy of a volcanic eruption undersea (2023)
Journal Article
Williams, R., & Rowley, P. (2023). Anatomy of a volcanic eruption undersea. Science, 381(6662), 1046-1047. https://doi.org/10.1126/science.adk0181

In December 2021, an undersea volcano in the southern Pacific Ocean, the Hunga Tonga–Hunga Ha‘apai (hereafter called the Hunga volcano) began erupting. In January 2022 the eruption reached a powerful climax, triggering atmospheric waves that traveled... Read More about Anatomy of a volcanic eruption undersea.

How does grain size distribution impact the mobility and deposition of analogue pyroclastic density currents? (2022)
Thesis
Johnston, T. How does grain size distribution impact the mobility and deposition of analogue pyroclastic density currents?. (Thesis). University of Hull. https://hull-repository.worktribe.com/output/4224880

Pyroclastic density currents (PDCs) are hot, density-driven flows of gas, rock and ash generated during explosive volcanic eruptions or from the collapse of lava domes. PDCs are able to travel for tens of km, traversing topographic barriers hundreds... Read More about How does grain size distribution impact the mobility and deposition of analogue pyroclastic density currents?.

Characterisation of reverse grading in ignimbrites through image analysis and experimental granular currents (2022)
Thesis
Johnson, M. Characterisation of reverse grading in ignimbrites through image analysis and experimental granular currents. (Thesis). University of Hull. https://hull-repository.worktribe.com/output/4320614

Pyroclastic density currents (PDCs) are hot, density-driven fast-moving flows of gas, rock and ash produced by volcanic events such as explosive eruptions, the fallback of eruption columns or the collapse of lava domes. They are deadly geological haz... Read More about Characterisation of reverse grading in ignimbrites through image analysis and experimental granular currents.

Propagation of aerated pyroclastic density current analogues : flow behaviour and the formation of bedforms and deposits (2020)
Thesis
Smith, G. M. (2020). Propagation of aerated pyroclastic density current analogues : flow behaviour and the formation of bedforms and deposits. (Thesis). University of Hull. Retrieved from https://hull-repository.worktribe.com/output/4223270

Pyroclastic Density Currents (PDCs) are deadly volcanic phenomena which pose an active risk to millions of people. Particularly dangerous due to their great unpredictability, despite decades of study the internal physics of PDCs are still poorly unde... Read More about Propagation of aerated pyroclastic density current analogues : flow behaviour and the formation of bedforms and deposits.

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.

Reconstructing the Anak Krakatau flank collapse that caused the December 2018 Indonesian tsunami (2019)
Journal Article
Williams, R., Rowley, P., & Garthwaite, M. C. (2019). Reconstructing the Anak Krakatau flank collapse that caused the December 2018 Indonesian tsunami. Geology, 47(10), 973-976. https://doi.org/10.1130/G46517.1

Volcanogenic tsunamis are one of the deadliest volcanic phenomena. Understanding their triggering processes, and mitigating their effect, remains a major challenge. On 22 December 2018, flank failure of the Anak Krakatau volcano in Indonesia generate... Read More about Reconstructing the Anak Krakatau flank collapse that caused the December 2018 Indonesian tsunami.

Investigation of variable aeration of monodisperse mixtures: implications for pyroclastic density currents (2018)
Journal Article
Smith, G. M., Williams, R., Rowley, P., & Parsons, D. R. (2018). Investigation of variable aeration of monodisperse mixtures: implications for pyroclastic density currents. Bulletin of volcanology, 80(8), Article 67. https://doi.org/10.1007/s00445-018-1241-1

The high mobility of dense pyroclastic density currents (PDCs) is commonly attributed to high gas pore pressures. However, the influence of spatial and temporal variations in pore pressure within PDCs has yet to be investigated. Theory suggests that... Read More about Investigation of variable aeration of monodisperse mixtures: implications for pyroclastic density currents.

Fracture and damage localization in volcanic edifice rocks from El Hierro, Stromboli and Tenerife (2018)
Journal Article
Harnett, C. E., Benson, P. M., Rowley, P., & Fazio, M. (2018). Fracture and damage localization in volcanic edifice rocks from El Hierro, Stromboli and Tenerife. Scientific reports, 8(1), Article 1942. https://doi.org/10.1038/s41598-018-20442-w

We present elastic wave velocity and strength data from a suite of three volcanic rocks taken from the volcanic edifices of El Hierro and Tenerife (Canary Islands, Spain), and Stromboli (Aeolian Islands, Italy). These rocks span a range of porosity a... Read More about Fracture and damage localization in volcanic edifice rocks from El Hierro, Stromboli and Tenerife.

Morphological and Mechanical Biomimetic Bone Structures (2016)
Journal Article
Parwani, R., Curto, M., Kao, A. P., Rowley, P. J., Pani, M., Tozzi, G., & Barber, A. H. (2017). Morphological and Mechanical Biomimetic Bone Structures. ACS Biomaterials Science and Engineering, 3(11), 2761-2767. https://doi.org/10.1021/acsbiomaterials.6b00652

Cortical bone is an example of a mineralized tissue containing a compositional distribution of hard and soft phases in 3-dimensional space for mechanical function. X-ray computed tomography (XCT) is able to describe this compositional and morphologic... Read More about Morphological and Mechanical Biomimetic Bone Structures.

Key future directions for research on turbidity currents and their deposits (2015)
Journal Article
Talling, P. J., Allin, J., Armitage, D. A., Arnott, R. W., Cartigny, M. J., Clare, M. A., Felletti, F., Covault, J. A., Girardclos, S., Hansen, E., Hill, P. R., Hiscott, R. N., Hogg, A. J., Clarke, J. H., Jobe, Z. R., Malgesini, G., Mozzato, A., Naruse, H., Parkinson, S., Peel, F. J., …Xu, J. (2015). Key future directions for research on turbidity currents and their deposits. Journal of Sedimentary Research, 85(2), 153-169. https://doi.org/10.2110/jsr.2015.03

Turbidity currents, and other types of submarine sediment density flow, redistribute more sediment across the surface of the Earth than any other sediment flow process, yet their sediment concentration has never been measured directly in the deep oce... Read More about Key future directions for research on turbidity currents and their deposits.

Experimental study of dense pyroclastic density currents using sustained, gas-fluidized granular flows (2014)
Journal Article
Rowley, P. J., Roche, O., Druitt, T. H., & Cas, R. (2014). Experimental study of dense pyroclastic density currents using sustained, gas-fluidized granular flows. Bulletin of volcanology, 76(9), 1-13. https://doi.org/10.1007/s00445-014-0855-1

We present the results of laboratory experiments on the behaviour of sustained, dense granular flows in a horizontal flume, in which high-gas pore pressure was maintained throughout the flow duration by continuous injection of gas through the flume b... Read More about Experimental study of dense pyroclastic density currents using sustained, gas-fluidized granular flows.

Shear-derived mixing in dense granular flows (2011)
Journal Article
Rowley, P. J., Kokelaar, P., Menzies, M., & Waltham, D. (2011). Shear-derived mixing in dense granular flows. Journal of Sedimentary Research, 81(12), 874-884. https://doi.org/10.2110/jsr.2011.72

In flume experiments, granular avalanches run onto loose substrates develop 3-D architectures that record shear-derived mixing between the flow and the substrate. Spherical silica beads 0.250 mm diameter are run onto stratified substrates of various... Read More about Shear-derived mixing in dense granular flows.

Conditional frequency mapping of move reservoir sedimentation models for improved play assessment
Presentation / Conference Contribution
Waltham, D. A., Rowley, P. J., Burgess, P. M., & MacLean, S. (2012, February). Conditional frequency mapping of move reservoir sedimentation models for improved play assessment. Paper presented at Petroleum Play Assessment

Stratigraphic forward models encode what we know about dynamic stratigraphy in the form of a numerical model that can make various types of predictions of stratal geometries and facies distributions. Unfortunately, limited knowledge of the physical l... Read More about Conditional frequency mapping of move reservoir sedimentation models for improved play assessment.