Now showing items 1-20 of 59

  • Ardnamurchan 3D cone-sheet architecture explained by a single elongate magma chamber 

    Burchardt, Steffi; Troll, Valentin R.; Mathieu, Lucie; Emeleus, Henry C.; Donaldson, Colin Henry (2013-10-08) - Journal article
    The Palaeogene Ardnamurchan central igneous complex, NW Scotland, was a defining place for the development of the classic concepts of cone-sheet and ring-dyke emplacement and has thus fundamentally influenced our thinking ...
  • Basal dynamics of Kronebreen, a fast-flowing tidewater glacier in Svalbard : non-local spatio-temporal response to water input 

    Vallot, Dorothée; Pettersson, Rickard; Luckman, Adrian; Benn, Douglas I.; Zwinger, Thomas; van Pelt, Ward J. J.; Kohler, Jack; Schäfer, Martina; Claremar, Björn; Hulton, Nicholas R. J. (2017-11-08) - Journal article
    We evaluate the variability in basal friction for Kronebreen, Svalbard, a fast-flowing tidewater glacier. We invert 3 years (2013–15) of surface velocities at high temporal resolution (generally 11 days), to estimate the ...
  • Bat urea-derived minerals in arid environment. First identification of allantoin, C4H6N4O3, in Kahf Kharrat Najem Cave, United Arab Emirates 

    Audra, Philippe; Bosák, Pavel; Gázquez, Fernando; Cailhol, Didier; Skála, Roman; Lisá, Lenka; Jonášová, Šárka; Frumkin, Amos; Knez, Martin; Slabe, Tadej; Zupan Hajna, Nadja; Al-Farraj, Asma (2017) - Journal article
    Kahf Kharrat Najem Cave is a small cave in United Arab Emirates (UAE) that hosts a bat colony which is the source of guano deposits and peculiar centimeter-long yellowish stalactites. The mineralogy and geochemistry of ...
  • Biomass recycling and Earth's early phosphorus cycle 

    Kipp, Michael; Stueeken, Eva Elisabeth (2017-11-22) - Journal article
    Phosphorus sets the pace of marine biological productivity on geological time scales. Recent estimates of Precambrian phosphorus levels suggest a severe deficit of this macronutrient, with the depletion attributed to ...
  • Boron isotopes in foraminifera : systematics, biomineralisation, and CO2 reconstruction 

    Rae, James W. B. (Springer, 2018) - Book item
    The boron isotope composition of foraminifera provides a powerful tracer for CO2 change over geological time. This proxy is based on the equilibrium of boron and its isotopes in seawater, which is a function of pH. However ...
  • Chemical controls on incipient Mg-silicate crystallisation at 25oC : implications for early and late diagenesis 

    Tosca, Nick; Masterson, Andrew (2014-04) - Journal article
    Mg-silicate minerals (e.g., stevensite, kerolite, talc, sepiolite) play an important role in the construction of facies models in lacustrine and peri-marine environments because they are sensitive to changes in solution ...
  • The continental record and the generation of continental crust 

    Cawood, Peter Anthony; Hawkesworth, Chris; Dhuime, Bruno Philippe Marcel (2013-01) - Journal article
    Continental crust is the archive of Earth history. The spatial and temporal distribution of Earth's record of rock units and events is heterogeneous; for example, ages of igneous crystallization, metamorphism, continental ...
  • Cosmogenic exposure age constraints on deglaciation and flow behaviour of a marine-based ice stream in western Scotland, 21–16 ka 

    Small, David; Benetti, Sara; Dove, Dayton; Ballantyne, Colin K.; Fabel, Derek; Clark, Chris D.; Gheorghiu, Delia M.; Newall, Jennifer; Xu, Sheng (2017-07-01) - Journal article
    Understanding how marine-based ice streams operated during episodes of deglaciation requires geochronological data that constrain both timing of deglaciation and changes in their flow behaviour, such as that from unconstrained ...
  • Counter-intuitive influence of Himalayan river morphodynamics on Indus Civilisation urban settlements 

    Singh, Ajit; Thomsen, Kristina J.; Sinha, Rajiv; Buylaert, Jan-Pieter; Carter, Andrew; Mark, Darren F.; Mason, Philippa J.; Densmore, Alexander L.; Murray, Andrew S.; Jain, Mayank; Paul, Debajyoti; Gupta, Sanjeev (2017-11-28) - Journal article
    Urbanism in the Bronze-age Indus Civilisation (~4.6–3.9 thousand years before the present, ka) has been linked to water resources provided by large Himalayan river systems, although the largest concentrations of urban-scale ...
  • Detrital record of mountain building : Provenance of Jurassic foreland basin to the Dabie Mountains 

    Yang, Jianghai; Cawood, Peter Anthony; Du, Yuansheng (2010-07-27) - Journal article
    The Huangshi foreland basin developed on the southern margin of the Dabie Mountains as a result of tectonic loading during Triassic collisional suturing between the North China and South China cratons. Modal and detrital ...
  • Detrital zircon record and tectonic setting 

    Cawood, Peter Anthony; Hawkesworth, Chris; Dhuime, Bruno Philippe Marcel (2012-10) - Journal article
    Detrital zircon spectra reflect the tectonic setting of the basin in which they are deposited. Convergent plate margins are characterized by a large proportion of zircon ages close to the depositional age of the sediment, ...
  • The discovery of new deep-sea hydrothermal vent communities in the southern ocean and implications for biogeography 

    Rogers, Alex D.; Tyler, Paul A.; Connelly, Douglas P.; Copley, Jon T.; James, Rachael; Larter, Robert D.; Linse, Katrin; Mills, Rachel A.; Garabato, Alfredo Naveira; Pancost, Richard D.; Pearce, David A.; Polunin, Nicholas V. C.; German, Christopher R.; Shank, Timothy; Boersch-Supan, Philipp H.; Alker, Belinda J.; Aquilina, Alfred; Bennett, Sarah A.; Clarke, Andrew; Dinley, Robert J. J.; Graham, Alastair G. C.; Green, Darryl R. H.; Hawkes, Jeffrey A.; Hepburn, Laura; Hilario, Ana; Huvenne, Veerle A. I.; Marsh, Leigh; Ramirez-Llodra, Eva; Reid, William D. K.; Roterman, Christopher N.; Sweeting, Christopher J.; Thatje, Sven; Zwirglmaier, Katrin (2012-01) - Journal article
    Since the first discovery of deep-sea hydrothermal vents along the Galapagos Rift in 1977, numerous vent sites and endemic faunal assemblages have been found along mid-ocean ridges and back-arc basins at low to mid latitudes. ...
  • Earth's middle age 

    Cawood, Peter Anthony; Hawkesworth, Chris (2014) - Journal article
    Earth's middle age, extending from 1.7 to 0.75 Ga, was characterized by environmental, evolutionary, and lithospheric stability that contrasts with the dramatic changes in preceding and succeeding eras. The period is marked ...
  • Empirical evidence for the fractionation of carbon isotopes between diamond and iron carbide from the Earth’s mantle 

    Mikhail, Sami; Guillermier, Christalle; Franchi, Ian; Beard, Andrew; Krispin, Catherine; Verchovsky, Alexander; Jones, Adrian; Milledge, H Judith (2014-05-22) - Journal article
    We have studied two samples of mantle diamond containing iron carbide inclusions from Jagersfontein kimberlite, South Africa. Syngenetic crystal growth is inferred using morphological characteristics. These samples provide ...
  • Enhancing the role of geoconservation in protected area management and nature conservation 

    Gordon, John E.; Crofts, Roger; Díaz-Martínez, Enrique; Woo, Kyung Sik (2017-07-15) - Journal article
    Acknowledgement by the International Union for the Conservation of Nature (IUCN) that geodiversity is part of natural diversity and geoheritage is part of natural heritage should help to strengthen the position and delivery ...
  • Eocene magmatic processes and crustal thickening in southern Tibet : insights from strongly fractionated ca. 43 Ma granites in the western Gangdese Batholith 

    Wang, Qing; Zhu, Di-Cheng; Cawood, Peter Anthony; Zhao, Zhi-Dan; Liu, Sheng-Ao; Chung, Sun-Lin; Zhang, Liang-Liang; Liu, Dong; Zheng, Yuan-Chuan; Dai, Jin-Gen (2015) - Journal article
    This study reports zircon U-Pb age and Hf isotope, whole-rock major and trace element, and Sr-Nd-Pb-Hf isotope data for the Dajia pluton, western Gangdese Batholith, in southern Tibet. These data indicate that the pluton ...
  • Experiments based on blue intensity for reconstructing North Pacific temperatures along the Gulf of Alaska 

    Wilson, Rob; D'Arrigo, Rosanne; Andreu-Hayles, Laia; Oelkers, Rose; Wiles, Greg; Anchukaitis, Kevin; Davi, Nicole (2017-08-16) - Journal article
    Ring-width (RW) records from the Gulf of Alaska (GOA) have yielded a valuable long-term perspective for North Pacific changes on decadal to longer timescales in prior studies but contain a broad winter to late summer ...
  • The first animals : ca. 760-million-year-old sponge-like fossils from Namibia 

    Brain, C. K. 'Bob'; Prave, Anthony R.; Hoffmann, Karl-Heinz; Fallick, Anthony E.; Botha, Andre; Herd, Donald A.; Sturrock, Craig; Young, Iain; Condon, Daniel J.; Allison, Stuart G. (2012-01) - Journal article
    One of the most profound events in biospheric evolution was the emergence of animals, which is thought to have occurred some 600-650 Ma. Here we report on the discovery of phosphatised body fossils that we interpret as ...
  • From convergent plate margin to arc-continent collision : formation of the Kenting Mélange, southern Taiwan 

    Zhang, Xinchang; Cawood, Peter Anthony; Huang, Chi-Yue; Wang, Yuejun; Yan, Yi; Santosh, M.; Chen, Wenhuang; Yu, Mengming (2016-10) - Journal article
    The Kenting Mélange on the Hengchun Peninsula, Taiwan, formed through tectonic shearing of subduction complex lithologies, probably within the plate boundary subduction channel between the Eurasian and Philippine Sea plates, ...
  • From subduction to collision in the northern Tibetan plateau : evidence from the early Silurian clastic rocks, northwestern China 

    Yang, Jianghai; Du, Yuansheng; Cawood, Peter A.; Xu, Yajun (2012-01) - Journal article
    The Qilian Orogen records early Paleozoic collisional suturing of the Qaidam Block and the Central Qilian Block to the North China Craton. The composition and U-Pb age of detrital zircons and the composition of Cr-spinels ...