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Hydromechanical modeling of stress, pore pressure and porosity evolution in fold-and-thrust belt systems (2017)
Journal Article
Obradors-Prats, J., Rouainia, M., Aplin, A., & Crook, A. (2017). Hydromechanical modeling of stress, pore pressure and porosity evolution in fold-and-thrust belt systems. Journal of Geophysical Research. Solid Earth, 122(11), 9383-9403. https://doi.org/10.1002/2017jb014074

We present coupled, critical state, geomechanical-fluid flow simulations of the evolution of a fold-and-thrust belt in NW Borneo. Our modelling is the first to include the effects of both syntectonic sedimentation and transient pore pressure on the d... Read More about Hydromechanical modeling of stress, pore pressure and porosity evolution in fold-and-thrust belt systems.

Comments on avalanche flow models based on the concept of random kinetic energy (2017)
Journal Article
Issler, D., Jenkins, J. T., & McElwaine, J. N. (2018). Comments on avalanche flow models based on the concept of random kinetic energy. Journal of Glaciology, 64(243), 148-164. https://doi.org/10.1017/jog.2017.62

In a series of papers, Bartelt and co-workers developed novel snow-avalanche models in which random kinetic energy (RKE) RK (a.k.a. granular temperature) is a key concept. The earliest models were for a single, constant density layer, using a Voellmy... Read More about Comments on avalanche flow models based on the concept of random kinetic energy.

Past seismic slip-to-the-trench recorded in Central America megathrust (2017)
Journal Article
Vannucchi, P., Spagnuolo, E., Aretusini, S., Di Toro, G., Ujiie, K., Tsutsumi, A., & Nielsen, S. (2017). Past seismic slip-to-the-trench recorded in Central America megathrust. Nature Geoscience, 10(12), 935-940. https://doi.org/10.1038/s41561-017-0013-4

The 2011 Tōhoku-Oki earthquake revealed that co-seismic displacement along the plate boundary megathrust can propagate to the trench. Co-seismic slip to the trench amplifies hazards at subduction zones, so its historical occurrence should also be inv... Read More about Past seismic slip-to-the-trench recorded in Central America megathrust.

Orthrozanclus elongata n. sp. and the significance of sclerite-covered taxa for early trochozoan evolution (2017)
Journal Article
Zhao, F., Smith, M. R., Yin, Z., Zeng, H., Li, G., & Zhu, M. (2017). Orthrozanclus elongata n. sp. and the significance of sclerite-covered taxa for early trochozoan evolution. Scientific Reports, 7, Article 16232. https://doi.org/10.1038/s41598-017-16304-6

Orthrozanclus is a shell-bearing, sclerite covered Cambrian organism of uncertain taxonomic affinity, seemingly representing an intermediate between its fellow problematica Wiwaxia and Halkieria. Attempts to group these slug-like taxa into a single ‘... Read More about Orthrozanclus elongata n. sp. and the significance of sclerite-covered taxa for early trochozoan evolution.

A matrix-matched reference material for validating petroleum Re-Os measurements (2017)
Journal Article
Liu, J., & Selby, D. (2018). A matrix-matched reference material for validating petroleum Re-Os measurements. Geostandards and Geoanalytical Research, 42(1), 97-113. https://doi.org/10.1111/ggr.12193

This study presents two matrix-matched reference materials developed for petroleum Re-Os measurements. We present the Re and Os mass fractions and 187Re/188Os and 187Os/188Os values (ratio of the number of atoms of the isotopes) for repeatedly measur... Read More about A matrix-matched reference material for validating petroleum Re-Os measurements.

Extension parallel to the rift zone during segmented fault growth: application to the evolution of the NE Atlantic (2017)
Journal Article
Bubeck, A., Walker, R., Imber, J., Holdsworth, R., MacLeod, C., & Holwell, D. (2017). Extension parallel to the rift zone during segmented fault growth: application to the evolution of the NE Atlantic. Solid Earth, 8(6), 1161-1180. https://doi.org/10.5194/se-8-1161-2017

The mechanical interaction of propagating normal faults is known to influence the linkage geometry of first-order faults, and the development of second-order faults and fractures, which transfer displacement within relay zones. Here we use natural ex... Read More about Extension parallel to the rift zone during segmented fault growth: application to the evolution of the NE Atlantic.

Microstructural and petrophysical properties of the Permo-Triassic sandstones (Buntsandstein) from the Soultz-sous-Forêts geothermal site (France) (2017)
Journal Article
Heap, M. J., Kushnir, A. R., Gilg, H. A., Wadsworth, F. B., Reuschlé, T., & Baud, P. (2017). Microstructural and petrophysical properties of the Permo-Triassic sandstones (Buntsandstein) from the Soultz-sous-Forêts geothermal site (France). Geothermal Energy, 5(1), Article 26. https://doi.org/10.1186/s40517-017-0085-9

Geothermal projects in the Upper Rhine Graben aim to harness thermal anomalies that have arisen due to hydrothermal circulation within the granitic basement and the overlying Permo-Triassic sedimentary units. We present here a systematic microstructu... Read More about Microstructural and petrophysical properties of the Permo-Triassic sandstones (Buntsandstein) from the Soultz-sous-Forêts geothermal site (France).

A new Silurian ophiuroid from the west of Ireland (2017)
Journal Article
Blake, D. B., Donovan, S. K., & Harper, D. A. (2017). A new Silurian ophiuroid from the west of Ireland. Irish Journal of Earth Sciences, 35, 57-66. https://doi.org/10.3318/ijes.2017.35.57

Silurian echinoderms from Ireland are poorly known; hitherto, only three nominal species have been described, all crinoids and all from the Telychian (Upper Llandovery, Lower Silurian) Kilbride Formation in County Galway. A new species from this form... Read More about A new Silurian ophiuroid from the west of Ireland.

Granular flows at recurring slope lineae on Mars indicate a limited role for liquid water (2017)
Journal Article
Dundas, C. M., McEwen, A. S., Chojnacki, M., Milazzo, M. P., Byrne, S., McElwaine, J. N., & Urso, A. (2017). Granular flows at recurring slope lineae on Mars indicate a limited role for liquid water. Nature Geoscience, 10, 903-907. https://doi.org/10.1038/s41561-017-0012-5

Recent liquid water flow on Mars has been proposed based on geomorphological features, such as gullies. Recurring slope lineae — seasonal flows that are darker than their surroundings — are candidate locations for seeping liquid water on Mars today,... Read More about Granular flows at recurring slope lineae on Mars indicate a limited role for liquid water.

Mafic enclaves record syn-eruptive basalt intrusion and mixing (2017)
Journal Article
Plail, M., Edmonds, M., Woods, A., Barclay, J., Humphreys, M. C., Herd, R. A., & Christopher, T. (2018). Mafic enclaves record syn-eruptive basalt intrusion and mixing. Earth and Planetary Science Letters, 484, 30-40. https://doi.org/10.1016/j.epsl.2017.11.033

Mafic enclaves hosted by andesite erupted at the Soufrière Hills Volcano between 1995 and 2010 yield insights into syn-eruptive mafic underplating of an andesite magma reservoir, magma mixing and its role in sustaining eruptions that may be widely ap... Read More about Mafic enclaves record syn-eruptive basalt intrusion and mixing.

From magma ascent to ash generation: investigating volcanic conduit processes by integrating experiments, numerical modeling, and observations (2017)
Journal Article
Polacci, M., de' Michieli Vitturi, M., Arzilli, F., Burton, M., Caricchi, L., Carr, B., …Taddeucci, J. (2017). From magma ascent to ash generation: investigating volcanic conduit processes by integrating experiments, numerical modeling, and observations. Annals of geophysics, 60(6), Article S0666. https://doi.org/10.4401/ag-7449

Processes occurring in volcanic conduits, the pathways through which magma travels from its storage region to the surface, have a fundamental control on the nature of eruptions and associated phenomena. It has been well established that magma flows,... Read More about From magma ascent to ash generation: investigating volcanic conduit processes by integrating experiments, numerical modeling, and observations.

Carbon dioxide generation and drawdown during active orogenesis of siliciclastic rocks in the Southern Alps, New Zealand (2017)
Journal Article
Menzies, C., Wright, S., Craw, D., James, R., Alt, J., Cox, S., …Teagle, D. (2018). Carbon dioxide generation and drawdown during active orogenesis of siliciclastic rocks in the Southern Alps, New Zealand. Earth and Planetary Science Letters, 481, 305-315. https://doi.org/10.1016/j.epsl.2017.10.010

Collisional mountain building influences the global carbon cycle through release of CO2 liberated by metamorphic reactions and promoting mechanical erosion that in turn increases chemical weathering and drawdown of atmospheric CO2. The Southern Alps... Read More about Carbon dioxide generation and drawdown during active orogenesis of siliciclastic rocks in the Southern Alps, New Zealand.

Petrogenesis of Cretaceous (133–84 Ma) intermediate dykes and host granites in southeastern China: Implications for lithospheric extension, continental crustal growth, and geodynamics of Palaeo-Pacific subduction (2017)
Journal Article
Yang, J., Zhao, Z., Hou, Q., Niu, Y., Mo, X., Sheng, D., & Wang, L. (2018). Petrogenesis of Cretaceous (133–84 Ma) intermediate dykes and host granites in southeastern China: Implications for lithospheric extension, continental crustal growth, and geodynamics of Palaeo-Pacific subduction. Lithos, 296-299, 195-211. https://doi.org/10.1016/j.lithos.2017.10.022

This paper presents U-Pb zircon geochronology, petrology, and major and trace element, Sr-Nd and zircon Hf isotopic geochemistry of Cretaceous granites and intermediate dykes in the Quanzhou and Xiamen regions of southeastern China. These data are us... Read More about Petrogenesis of Cretaceous (133–84 Ma) intermediate dykes and host granites in southeastern China: Implications for lithospheric extension, continental crustal growth, and geodynamics of Palaeo-Pacific subduction.

Alaskan-type Kedanshan intrusion (central Inner Mongolia, China): Superimposed subduction between the Mongol-Okhotsk and Paleo-Pacific oceans in the Jurassic (2017)
Journal Article
Dong, J., Song, S., Wang, M., Allen, M. B., Su, L., Wang, C., …Xu, B. (2018). Alaskan-type Kedanshan intrusion (central Inner Mongolia, China): Superimposed subduction between the Mongol-Okhotsk and Paleo-Pacific oceans in the Jurassic. Journal of Asian Earth Sciences, 167, 68-81. https://doi.org/10.1016/j.jseaes.2017.11.010

The Xing’an-Inner Mongolia accretionary belt in the eastern Central Asian Orogenic Belt (CAOB) was produced by the subduction of three oceanic plates: the Paleo-Asian, Mongol-Okhotsk and Paleo-Pacific oceanic plates. The interactions between these pl... Read More about Alaskan-type Kedanshan intrusion (central Inner Mongolia, China): Superimposed subduction between the Mongol-Okhotsk and Paleo-Pacific oceans in the Jurassic.

The neodymium stable isotope composition of the silicate Earth and chondrites (2017)
Journal Article
McCoy-West, A. J., Millet, M., & Burton, K. W. (2017). The neodymium stable isotope composition of the silicate Earth and chondrites. Earth and Planetary Science Letters, 480, 121-132. https://doi.org/10.1016/j.epsl.2017.10.004

The non-chondritic neodymium (Nd) 142Nd/144Nd ratio of the silicate Earth potentially provides a key constraint on the accretion and early evolution of the Earth. Yet, it is debated whether this offset is due to the Earth being formed from material e... Read More about The neodymium stable isotope composition of the silicate Earth and chondrites.

A sequential dynamic Bayesian network for pore pressure estimation with uncertainty quantification (2017)
Journal Article
Oughton, R. H., Wooff, D. A., Hobbs, R. W., Swarbrick, R. E., & O'Connor, S. A. (2018). A sequential dynamic Bayesian network for pore pressure estimation with uncertainty quantification. Geophysics, 83(2), D27-D39. https://doi.org/10.1190/geo2016-0566.1

Pore-pressure estimation is an important part of oil-well drilling, since drilling into unexpected highly pressured fluids can be costly and dangerous. However, standard estimation methods rarely account for the many sources of uncertainty, or for th... Read More about A sequential dynamic Bayesian network for pore pressure estimation with uncertainty quantification.

Geological and chronological constraints on the long-lived Eocene Yulong porphyry Cu-Mo deposit, eastern Tibet, China: implications for lifespan of magmatic-hydrothermal processes forming giant and supergiant porphyry Cu deposits (2017)
Journal Article
Chang, J., Li, J., Selby, D., Liu, J., & Deng, X. (2017). Geological and chronological constraints on the long-lived Eocene Yulong porphyry Cu-Mo deposit, eastern Tibet, China: implications for lifespan of magmatic-hydrothermal processes forming giant and supergiant porphyry Cu deposits. Economic geology and the bulletin of the Society of Economic Geologists, 112(7), 1719-1746. https://doi.org/10.5382/econgeo.2017.4527

The Yulong porphyry Cu-Mo deposit, the third largest porphyry Cu deposit in China, contains proven reserves of > 6.5 million metric tons (Mt) Cu and 0.4 Mt Mo. Previous radiometric dating studies have provided numerous ages for this deposit, but the... Read More about Geological and chronological constraints on the long-lived Eocene Yulong porphyry Cu-Mo deposit, eastern Tibet, China: implications for lifespan of magmatic-hydrothermal processes forming giant and supergiant porphyry Cu deposits.

Pulsed magmatic-fluid release for the formation of porphyry deposits: tracing fluid evolution in absolute time from the Tibetan Qulong Cu-Mo deposit (2017)
Journal Article
Li, Y., Li, X., Selby, D., & Li, J. (2018). Pulsed magmatic-fluid release for the formation of porphyry deposits: tracing fluid evolution in absolute time from the Tibetan Qulong Cu-Mo deposit. Geology, 46(1), 7-10. https://doi.org/10.1130/g39504.1

The magmatic-hydrothermal evolution of porphyry-style mineralization in the shallow crust that is linked to magmatic processes at depth has been extensively studied using bulk-sample isotopic analysis combined with relative timing constraints. Howeve... Read More about Pulsed magmatic-fluid release for the formation of porphyry deposits: tracing fluid evolution in absolute time from the Tibetan Qulong Cu-Mo deposit.

Ground air: A first approximation of the Earth's second largest reservoir of carbon dioxide gas (2017)
Journal Article
Baldini, J. U., Bertram, R. A., & Ridley, H. E. (2018). Ground air: A first approximation of the Earth's second largest reservoir of carbon dioxide gas. Science of the Total Environment, 616-617, 1007-1013. https://doi.org/10.1016/j.scitotenv.2017.10.218

It is becoming increasingly clear that a substantial reservoir of carbon exists in the unsaturated zone of aquifers, though the total size of this reservoir on a global scale remains unquantified. Here we provide the first broad estimate of the amoun... Read More about Ground air: A first approximation of the Earth's second largest reservoir of carbon dioxide gas.