All Outputs (3024)

Rapid eruptive transitions from low to high intensity explosions and effusive activity: insights from textural analysis of a small-volume trachytic eruption, Ascension Island, South Atlantic (2021)
Journal Article
Davies, B. V., Brown, R. J., Barclay, J., Scarrow, J. H., & Herd, R. A. (2021). Rapid eruptive transitions from low to high intensity explosions and effusive activity: insights from textural analysis of a small-volume trachytic eruption, Ascension Island, South Atlantic. Bulletin of Volcanology, 83(9), Article 58. https://doi.org/10.1007/s00445-021-01480-1

Proximal deposits of small-volume trachytic eruptions are an under-studied record of eruption dynamics despite being common across a range of settings. The 59 ± 4 ka Echo Canyon deposits, Ascension Island, resulted from a small-volume explosive-effus... Read More about Rapid eruptive transitions from low to high intensity explosions and effusive activity: insights from textural analysis of a small-volume trachytic eruption, Ascension Island, South Atlantic.

Structural Inheritance Controls Strain Distribution During Early Continental Rifting, Rukwa Rift (2021)
Journal Article
Kolawole, F., Phillips, T. B., Atekwana, E. A., & Jackson, C. A. (2021). Structural Inheritance Controls Strain Distribution During Early Continental Rifting, Rukwa Rift. Frontiers in Earth Science, 9, https://doi.org/10.3389/feart.2021.707869

Little is known about rift kinematics and strain distribution during the earliest phase of extension due to the deep burial of the pre-rift and earliest rift structures beneath younger, rift-related deposits. Yet, this exact phase of basin developmen... Read More about Structural Inheritance Controls Strain Distribution During Early Continental Rifting, Rukwa Rift.

Origins of olivine in Earth’s youngest kimberlite: Igwisi Hills volcanoes, Tanzania craton (2021)
Journal Article
Shaikh, A. M., Tappe, S., Bussweiler, Y., Vollmer, C., Brown, R. J., & EIMF. (2021). Origins of olivine in Earth’s youngest kimberlite: Igwisi Hills volcanoes, Tanzania craton. Contributions to Mineralogy and Petrology, 176(8), Article 62. https://doi.org/10.1007/s00410-021-01816-2

Monomineralic millimeter-sized olivine nodules are common in kimberlites worldwide. It is generally thought that such ‘dunitic nodules’ originate from the base of the cratonic lithosphere and that their formation marks the onset of deep-rooted kimber... Read More about Origins of olivine in Earth’s youngest kimberlite: Igwisi Hills volcanoes, Tanzania craton.

The force required to operate the plunger on a French press (2021)
Journal Article
Wadsworth, F. B., Vossen, C. E., Heap, M. J., Kushnir, A., Farquharson, J. I., Schmid, D., …Kendrick, J. E. (2021). The force required to operate the plunger on a French press. American Journal of Physics, 89, Article 769. https://doi.org/10.1119/10.0004224

The French press is a popular device for brewing coffee, comprising a cylindrical beaker—or “jug”—fitted with a lid and plunger with a fine wire mesh filter. The plunger is used to drive the solid coffee particles to the bottom of the jug, separating... Read More about The force required to operate the plunger on a French press.

Precession-driven climate cycles and time scale prior to the Hirnantian glacial maximum (2021)
Journal Article
Sinnesael, M., McLaughlin, P., Desrochers, A., Mauviel, A., De Weirdt, J., Claeys, P., & Vandenbroucke, T. (2021). Precession-driven climate cycles and time scale prior to the Hirnantian glacial maximum. Geology, 49(11), 1295-1300. https://doi.org/10.1130/g49083.1

Paleozoic astrochronologies are limited by uncertainties in past astronomical configurations and the availability of complete stratigraphic sections with precise, independent age control. We show it is possible to reconstruct a robust Paleozoic ~104-... Read More about Precession-driven climate cycles and time scale prior to the Hirnantian glacial maximum.

Identifying deep recycled carbonates through Miocene basalts in the Maguan area, SE Tibetan Plateau (2021)
Journal Article
Lei, H., Zhao, Z., Niu, Y., Zhang, S., Cousens, B., Ma, Q., …Zhu, D. (2021). Identifying deep recycled carbonates through Miocene basalts in the Maguan area, SE Tibetan Plateau. Lithos, 400-401, Article 106356. https://doi.org/10.1016/j.lithos.2021.106356

Cenozoic mantle-derived magmas are widespread on the Tibetan Plateau, and provide evidence for the evolution of deep mantle and its influence on the Plateau development. Miocene basalts in the Maguan area on the southeastern Plateau have high MgO (9.... Read More about Identifying deep recycled carbonates through Miocene basalts in the Maguan area, SE Tibetan Plateau.

Petrogenetic evolution of the Zhuopan potassic alkaline complex, western Yunnan, SW China: Implications for heterogeneous metasomatism of lithospheric mantle beneath Simao and western Yangtze block (2021)
Journal Article
Miao, Z., Zhao, Z., Niu, Y., Lei, H., Tong, X., Wu, J., …Zhou, S. (2021). Petrogenetic evolution of the Zhuopan potassic alkaline complex, western Yunnan, SW China: Implications for heterogeneous metasomatism of lithospheric mantle beneath Simao and western Yangtze block. Lithos, 400-401, Article 106354. https://doi.org/10.1016/j.lithos.2021.106354

Potassic alkaline rocks are instrumental in unveiling the composition and geodynamic evolution of mantle lithosphere. The Zhuopan alkaline complex, located in the western Simao block, SW China, exhibits features of high potassium, enrichment in LILEs... Read More about Petrogenetic evolution of the Zhuopan potassic alkaline complex, western Yunnan, SW China: Implications for heterogeneous metasomatism of lithospheric mantle beneath Simao and western Yangtze block.

Subduction history of the Caribbean from upper-mantle seismic imaging and plate reconstruction (2021)
Journal Article
Braszus, B., Goes, S., Allen, R., Rietbrock, A., Collier, J., Harmon, N., …Wilson, M. (2021). Subduction history of the Caribbean from upper-mantle seismic imaging and plate reconstruction. Nature Communications, 12(1), Article 4211. https://doi.org/10.1038/s41467-021-24413-0

The margins of the Caribbean and associated hazards and resources have been shaped by a poorly understood history of subduction. Using new data, we improve teleseismic P-wave imaging of the eastern Caribbean upper mantle and compare identified subduc... Read More about Subduction history of the Caribbean from upper-mantle seismic imaging and plate reconstruction.

Early Cambrian brachiopod-dominated shell concentrations from North-East Greenland: Environmental and taphonomic implications (2021)
Journal Article
Harper, D. A., Stouge, S., Christiansen, J. L., Topper, T. P., Alwmark, C., Richoz, S., & Ahlberg, P. (2021). Early Cambrian brachiopod-dominated shell concentrations from North-East Greenland: Environmental and taphonomic implications. Global and Planetary Change, 204, Article 103560. https://doi.org/10.1016/j.gloplacha.2021.103560

The occurrence of a series of thin but persistent early Cambrian (Cambrian Age 4) brachiopod shell concentrations extending along a transect of some 150 km in NE Greenland, indicates the ability of the group to form widespread, skeletal pavements ver... Read More about Early Cambrian brachiopod-dominated shell concentrations from North-East Greenland: Environmental and taphonomic implications.

Karstified and fractured Lower Carboniferous (Mississippian) limestones of the UK; a cryptic geothermal reservoir (2021)
Journal Article
Narayan, N., Adams, C., & Gluyas, J. (2021). Karstified and fractured Lower Carboniferous (Mississippian) limestones of the UK; a cryptic geothermal reservoir. Zeitschrift der Deutschen Gesellschaft für Geowissenschaften - Journal of Applied and Regional Geology, 172(3), 251-265. https://doi.org/10.1127/zdgg/2021/0288

Karstified and fractured Lower Carboniferous (Mississippian) limestones of the UK have been evaluated for their geothermal potential. This wholly undeveloped resource is calculated to be in excess of 26 million GWh (95 EJ) for the P90 case and as muc... Read More about Karstified and fractured Lower Carboniferous (Mississippian) limestones of the UK; a cryptic geothermal reservoir.

NEW GEOCHEMICAL INSIGHTS INTO CENOZOIC SOURCE ROCKS IN AZERBAIJAN: IMPLICATIONS FOR PETROLEUM SYSTEMS IN THE SOUTH CASPIAN REGION (2021)
Journal Article
Aghayeva, V., Sachsenhofer, R., van Baak, C., Bechtel, A., Hoyle, T., Selby, D., …Vincent, S. (2021). NEW GEOCHEMICAL INSIGHTS INTO CENOZOIC SOURCE ROCKS IN AZERBAIJAN: IMPLICATIONS FOR PETROLEUM SYSTEMS IN THE SOUTH CASPIAN REGION. Journal of Petroleum Geology, 44(3), 349-384. https://doi.org/10.1111/jpg.12797

The Maikop Group and the Diatom Formation constitute the two main source rocks in the South Caspian Basin and onshore Azerbaijan where large-scale oil production began more than 150 years ago. However, the stratigraphic distribution of the source roc... Read More about NEW GEOCHEMICAL INSIGHTS INTO CENOZOIC SOURCE ROCKS IN AZERBAIJAN: IMPLICATIONS FOR PETROLEUM SYSTEMS IN THE SOUTH CASPIAN REGION.

Variation in Upper Plate Crustal and Lithospheric Mantle Structure in the Greater and Lesser Antilles from Ambient Noise Tomography (2021)
Journal Article
Schlaphorst, D., Harmon, N., Kendall, J., Rychert, C., Collier, J., Rietbrock, A., …Wilson, M. (2021). Variation in Upper Plate Crustal and Lithospheric Mantle Structure in the Greater and Lesser Antilles from Ambient Noise Tomography. Geochemistry, Geophysics, Geosystems, 22(7), Article e2021GC009800. https://doi.org/10.1029/2021gc009800

The crust and upper mantle structure of the Greater and Lesser Antilles Arc provides insights into key subduction zone processes in a unique region of slow convergence of old slow-spreading oceanic lithosphere. We use ambient noise tomography gathere... Read More about Variation in Upper Plate Crustal and Lithospheric Mantle Structure in the Greater and Lesser Antilles from Ambient Noise Tomography.

Permeability of packs of polydisperse hard spheres (2021)
Journal Article
Vasseur, J., Wadsworth, F. B., Coumans, J. P., & Dingwell, D. B. (2021). Permeability of packs of polydisperse hard spheres. Physical Review E, 103(6), https://doi.org/10.1103/physreve.103.062613

The permeability of packs of spheres is important in a wide range of physical scenarios. Here, we create numerically generated random periodic domains of spheres that are polydisperse in size and use lattice-Boltzmann simulations of fluid flow to det... Read More about Permeability of packs of polydisperse hard spheres.

Volcanic Unrest at Taupō Volcano in 2019: Causes, Mechanisms and Implications (2021)
Journal Article
Illsley‐Kemp, F., Barker, S. J., Wilson, C. J., Chamberlain, C. J., Hreinsdóttir, S., Ellis, S., …Wadsworth, F. B. (2021). Volcanic Unrest at Taupō Volcano in 2019: Causes, Mechanisms and Implications. Geochemistry, Geophysics, Geosystems, 22(6), https://doi.org/10.1029/2021gc009803

Taupō volcano, New Zealand, is a large caldera volcano that has been highly active through the Holocene. It most recently erupted ∼1,800 years ago but there have been multiple periods of historic volcanic unrest. We use seismological and geodetic ana... Read More about Volcanic Unrest at Taupō Volcano in 2019: Causes, Mechanisms and Implications.

Thermal state and evolving geodynamic regimes of the Meso- to Neoarchean North China Craton (2021)
Journal Article
Sun, G., Liu, S., Cawood, P. A., Tang, M., van Hunen, J., Gao, L., …Hu, F. (2021). Thermal state and evolving geodynamic regimes of the Meso- to Neoarchean North China Craton. Nature Communications, 12(1), Article 3888. https://doi.org/10.1038/s41467-021-24139-z

Constraining thickness and geothermal gradient of Archean continental crust are crucial to understanding geodynamic regimes of the early Earth. Archean crust-sourced tonalitic–trondhjemitic–granodioritic gneisses are ideal lithologies for reconstruct... Read More about Thermal state and evolving geodynamic regimes of the Meso- to Neoarchean North China Craton.

Dynamic baselines for the detection of water quality impacts – the case of shale gas development (2021)
Journal Article
Worrall, F., Davies, R. J., & Hart, A. (2021). Dynamic baselines for the detection of water quality impacts – the case of shale gas development. Environmental Science: Processes & Impacts, 23(8), 1116-1129. https://doi.org/10.1039/d0em00440e

There is a need for the development of effective baselines against which the water quality impacts of new developments can be assessed. The specific conductance of flowback water from shale gas operations is typically many times the specific conducta... Read More about Dynamic baselines for the detection of water quality impacts – the case of shale gas development.

Microstructure and pore systems of shallow-buried fluvial mudstone caprocks in Zhanhua Depression, east China inferred from SEM and MICP (2021)
Journal Article
Li, Y., Zha, M., Song, R., Aplin, A. C., Bowen, L., Wang, X., & Zhang, Y. (2021). Microstructure and pore systems of shallow-buried fluvial mudstone caprocks in Zhanhua Depression, east China inferred from SEM and MICP. Marine and Petroleum Geology, 132, Article 105189. https://doi.org/10.1016/j.marpetgeo.2021.105189

Shallow-buried fluvial mudstones are of great significance as potential top seals for natural gas accumulations in the Zhanhua depression. Four samples were chosen to represent the range of fine-grained microfacies, from clay-rich to silt-rich to cem... Read More about Microstructure and pore systems of shallow-buried fluvial mudstone caprocks in Zhanhua Depression, east China inferred from SEM and MICP.

Syn-sedimentary to diagenetic Cu ± Co mineralization in Mesoproterozoic pyritic shale driven by magmatic-hydrothermal activity on the edge of the Great Falls tectonic zone – Black Butte, Helena Embayment, Belt-Purcell Basin, USA: Evidence from sulfide Re-Os isotope geochemistry (2021)
Journal Article
Saintilan, N. J., Sheldrake, T. E., Creaser, R. A., Selby, D., Zieg, J., Boyce, A., & Chelle-Michou, C. (2021). Syn-sedimentary to diagenetic Cu ± Co mineralization in Mesoproterozoic pyritic shale driven by magmatic-hydrothermal activity on the edge of the Great Falls tectonic zone – Black Butte, Helena Embayment, Belt-Purcell Basin, USA: Evidence from sulfide Re-Os isotope geochemistry. Lithosphere, 2021(1), Article 7866186. https://doi.org/10.2113/2021/7866186

The ca. 1,500 to 1,325 Ma Mesoproterozoic Belt-Purcell Basin is an exceptionally preserved archive of Mesoproterozoic Earth and its paleo-environmental conditions. The Belt-Purcell Basin is also host to world-class base metal sediment-hosted minerali... Read More about Syn-sedimentary to diagenetic Cu ± Co mineralization in Mesoproterozoic pyritic shale driven by magmatic-hydrothermal activity on the edge of the Great Falls tectonic zone – Black Butte, Helena Embayment, Belt-Purcell Basin, USA: Evidence from sulfide Re-Os isotope geochemistry.

Suitability of Legacy Subsurface Data for Nascent Geoenergy Activities Onshore United Kingdom (2021)
Journal Article
Ireland, M. T., Brown, R., Wilson, M. P., Stretesky, P. B., Kingdon, A., & Davies, R. J. (2021). Suitability of Legacy Subsurface Data for Nascent Geoenergy Activities Onshore United Kingdom. Frontiers in Earth Science, 9, https://doi.org/10.3389/feart.2021.629960

The decarbonization of energy systems to achieve net zero carbon emissions will likely see the rapid development of carbon capture and storage, energy storage in the subsurface and geothermal energy projects. Subsurface data, in particular seismic re... Read More about Suitability of Legacy Subsurface Data for Nascent Geoenergy Activities Onshore United Kingdom.

Effect of Diagenesis on Geomechanical Properties of Organic‐rich Calcareous Shale: A Multiscale Investigation (2021)
Journal Article
Charlton, T., Goodarzi, M., Rouainia, M., Aplin, A., & Cubillas, P. (2021). Effect of Diagenesis on Geomechanical Properties of Organic‐rich Calcareous Shale: A Multiscale Investigation. Journal of Geophysical Research. Solid Earth, 126(7), Article e2020JB021365. https://doi.org/10.1029/2020jb021365

This paper investigates the nano to core-scale geomechanical properties of a maturity series of organic-rich, calcareous shales buried to 100-180°C, with a focus on: (a) the mechanical properties of organic matter; (b) the elastic response and anisot... Read More about Effect of Diagenesis on Geomechanical Properties of Organic‐rich Calcareous Shale: A Multiscale Investigation.