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    The metaconglomerates of the eastern Lanterman Range (northern Victoria Land, Antarctica): new constraints for their interpretation

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    Highly deformed metaconglomerates, mafic to felsic in composition, characterize the eastern Lanterman Range (northern Victoria Land, Antarctica). In the literature the mafic and felsic metaconglomerates are known as Husky Conglomerate and Lanterman Conglomerate respectively. They occurin a 25 km long strip along the Lanterman Fault, which is a major tectonic boundary between the Wilson and the Bowers terranes. New field observations show that there is a gradual transition from mafic to felsic metaconglomerates: this supports a stratigraphical continuum from Husky to Lanterman Conglomerate, and indicates that they belong to the same sedimentary succession. Structural analysis indicates that Husky and Lanterman conglomerates suffered the same structural evolution. From all these evidences, there is no reason to distinguish two types of metaconglomerates, apart from the diversity in the lithological features. However the two terms "Husky Conglomerate" and "Lanterman Conglomerate" can be still used to refer to the mafic and felsic facies of the same sedimentary succession. On the basis of their lithology the Husky Conglomerate can be derived from the Glasgow volcanic are, whereas the felsic clasts of the Lanterman Conglomerate may be derived from a continental basement below the Glasgow are or from a continental block bounding the Bowers trough

    Breakthrough innovations and where to find them

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    Breakthrough innovations significantly depart from common practices and can potentially reshape existing markets, create new markets, and prompt the emergence of new technological trajectories. The crucial role that breakthrough innovations play in technological progress has stimulated a lively line of research investigating methods to identify them in actual empirical contexts. Despite this ongoing effort, the availability of data on breakthrough innovations is still scarce and seems to have prevented, at least so far, an integrated perspective comprising both their technical and economic significance. We address this limitation by developing a method that uses award-winning innovations which have been successfully commercialized to find breakthrough patents on a large scale. For the period 1976–2013, in a sample of 138,467 USPTO patents, we identify 17,176 breakthrough innovations. Relevant robustness checks support the validity of our classification. We then exploit this sample to assess the sources of breakthrough innovations
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