Climatic and eustatic controls on the development of a Late Triassic source rock in the Jameson Land Basin, East Greenland

This work was undertaken as part of the continuing work of CASP in East Greenland. The sponsoring companies are thanked for their continued support of this work. Help in the field by T. Kinnaird and useful discussions with A. Whitham are gratefully acknowledged. The reviews of L. Clemmensen and an anonymous reviewer, and the input from S. Jones led to improvements to the original paper.Peer reviewedPostprin

Jubilee mugs:the monarchy and the Sex Pistols

With rare exceptions sociologists have traditionally had little to say about the British monarchy. In the exceptional cases of the Durkheimian functionalism of Shills and Young (1953), the left humanism of Birnbaum (1955), or the archaic state/backward nation thesis of Nairn (1988), the British nation has been conceived as a homogenous mass. The brief episode of the Sex Pistols' Jubilee year song 'God Save the Queen' exposed some of the divisions within the national 'mass', forcing a re-ordering of the balance between detachment and belonging to the Royal idea. I argue that the song acted as a kind of 'breaching experiment'. Its wilful provocation of Royalist sentiment revealed the level of sanction available to the media-industrial complex to enforce compliance to British self-images of loyal and devoted national communicants

Cracking in asphalt materials

This chapter provides a comprehensive review of both laboratory characterization and modelling of bulk material fracture in asphalt mixtures. For the purpose of organization, this chapter is divided into a section on laboratory tests and a section on models. The laboratory characterization section is further subdivided on the basis of predominant loading conditions (monotonic vs. cyclic). The section on constitutive models is subdivided into two sections, the first one containing fracture mechanics based models for crack initiation and propagation that do not include material degradation due to cyclic loading conditions. The second section discusses phenomenological models that have been developed for crack growth through the use of dissipated energy and damage accumulation concepts. These latter models have the capability to simulate degradation of material capacity upon exceeding a threshold number of loading cycles.Peer ReviewedPostprint (author's final draft

Towards an integrated Jurassic biostratigraphy for eastern Greenland

The thick and relatively complete Jurassic succession of eastern Greenland provides a unique biostratigraphic record for the North Atlantic region. The main biostratigraphic control for the succession has been provided by molluscs, especially ammonites and to a lesser extent by bivalves and belemnites. The late John Callomon and colleagues recognised 93 Boreal ammonite-bearing horizons in the Mid to Late Jurassic. This provides a reliable backbone to the biostratigraphy of these strata, prompting a palynological colleague to comment that they are the “Policemen of Jurassic Stratigraphy”. Other biostratigraphically significant microfossil and palynological groups, can be calibrated against this standard, but on their own cannot achieve the same precision.​ The Early Jurassic of eastern Greenland does not have such fine control as later parts of the period. No single biostratigraphic group can be used successfully throughout the interval, and there are only three significant ammonite faunas during this period. Reliance on various different organisms is necessary to cope with the changing range of marine to non-marine environments. CASP field-work from 1990 to 2012 has resulted in the collection of much biostratigraphic material. In this article, published data are summarised together with previously unpublished data in the form of a unified table. The integrated chart shows detailed columns for the whole eastern Greenland Jurassic. It demonstrates the ammonite, palynological and microfossil events/biozones and horizons which are correlated by time. More limited information is available on belemnites, bivalves and macroflora. This is the first time such an integrated biostratigraphic scheme has been assembled for the Jurassic of eastern Greenland. It will be of value to the offshore oil-industry in the northern North Atlantic and on the Barents Shelf as well as to field geologists in Greenland

Exhumed hydrocarbon traps in East Greenland: Reply to Christensen et al.'s comment on Andrews et al. (2020)

Christansen et al. (2020) have raised concerns over the validity of the data and interpretation in our study of the exhumed hydrocarbon traps of East Greenland. Furthermore, they have put forward a model which they suggest that better suits their data. However, this markedly contradicts the data we presented.The concerns raised by Christansen et al. (2020) centre around a number of key points: Acknowlegement of the history of previous debate around these structures It is suggested that pyrobitumen is only minor in occurrence and much of this material is, in fact, iron oxides The distribution of pyrobitumen that we document is disputed in favour of irregular distribution as would fit their model The requirement for a detailed diagenetic study The maturity of potential source rocks.A model is then presented which is suggested to best suit the available data. Each of these points is discussed, in turn, in this reply.<br/