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  • 1
    Online Resource
    Online Resource
    A lithostratigraphical and chronological study of Oligocene-Miocene sequences on eastern King George Island, South Shetland Islands (Antarctica), and correlation of glacial episodes with global isotope events
    Cambridge University Press (CUP) ; 2021
    In:  Antarctic Science Vol. 33, No. 5 ( 2021-10), p. 502-532
    Details
    In: Antarctic Science, Cambridge University Press (CUP), Vol. 33, No. 5 ( 2021-10), p. 502-532
    Abstract: King George Island (South Shetland Islands, Antarctic Peninsula) is renowned for its terrestrial palaeoenvironmental record, which includes evidence for potentially up to four Cenozoic glacial periods. An advantage of the glacigenic outcrops on the island is that they are associated with volcanic formations that can be isotopically dated. As a result of a new mapping and chronological study, it can now be shown that the published stratigraphy and ages of many geological units on eastern King George Island require major revision. The Polonez Glaciation is dated as c. 26.64 ± 1.43 Ma (Late Oligocene (Chattian Stage)) and includes the outcrops previously considered as evidence for an Eocene glacial ('Krakow Glaciation'). It was succeeded by two important volcanic episodes (Boy Point and Cinder Spur formations) formed during a relatively brief interval ( 〈 2 Ma), which also erupted within the Oligocene Chattian Stage. The Melville Glaciation is dated as c. 21–22 Ma (probably 21.8 Ma; Early Miocene (Aquitanian Stage)), and the Legru Glaciation is probably ≤ c. 10 Ma (Late Miocene or younger). As a result of this study, the Polonez and Melville glaciations can now be correlated with increased confidence with the Oi2b and Mi1a isotope zones, respectively, and thus represent major glacial episodes.
    Type of Medium: Online Resource
    ISSN: 0954-1020 , 1365-2079
    URL: Article
    DOI: 10.1017/S095410202100033X
    Language: English
    Publisher: Cambridge University Press (CUP)
    Publication Date: 2021
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    detail.hit.zdb_id: 1009128-2
    SSG: 12
    SSG: 13
    SSG: 14
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  • 2
    Online Resource
    Online Resource
    Lithostratigraphy, age and distribution of Eocene volcanic sequences on eastern King George Island, South Shetland Islands, Antarctica
    Cambridge University Press (CUP) ; 2021
    In:  Antarctic Science Vol. 33, No. 4 ( 2021-08), p. 373-401
    Details
    In: Antarctic Science, Cambridge University Press (CUP), Vol. 33, No. 4 ( 2021-08), p. 373-401
    Abstract: New mapping and dating of volcanic outcrops on the east coast of Admiralty Bay, King George Island, has demonstrated that Eocene volcanic sequences are dominant and also crop out extensively elsewhere, particularly on the eastern part of the island. The sequences can be divided into at least three formations (Hennequin, Cape Vauréal and Carruthers Cliff) together with Eocene strata at Warkocz and near Lions Rump that are currently unassigned stratigraphically. New and recently published 40 Ar/ 39 Ar ages indicate that all of the formations are Early Eocene in age, mainly Ypresian, extending to Lutetian and possibly even Priabonian time in more easterly outcrops. Compositional contrasts exist between the groups (calc-alkaline vs tholeiitic). The formations are mainly composed of lavas, and many show evidence for contemporary inundation by water. They are interbedded with sedimentary rocks deposited mainly during flooding events as debris flows, debris avalanches, hyperconcentrated flows, from traction currents and in lakes. The common presence of juvenile volcanic detritus suggests that the sediments were probably linked to explosive hydrovolcanic eruptions, some of which were possibly rooted in summit ice caps. Other evidence is also permissive, but the presence of Eocene ice on King George Island is not well established at present.
    Type of Medium: Online Resource
    ISSN: 0954-1020 , 1365-2079
    URL: Article
    DOI: 10.1017/S0954102021000213
    Language: English
    Publisher: Cambridge University Press (CUP)
    Publication Date: 2021
    detail.hit.zdb_id: 2104104-0
    detail.hit.zdb_id: 1009128-2
    SSG: 12
    SSG: 13
    SSG: 14
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  • 3
    Online Resource
    Online Resource
    A history of high-power laser research and development in the United Kingdom
    Cambridge University Press (CUP) ; 2021
    In:  High Power Laser Science and Engineering Vol. 9 ( 2021)
    Details
    In: High Power Laser Science and Engineering, Cambridge University Press (CUP), Vol. 9 ( 2021)
    Abstract: The first demonstration of laser action in ruby was made in 1960 by T. H. Maiman of Hughes Research Laboratories, USA. Many laboratories worldwide began the search for lasers using different materials, operating at different wavelengths. In the UK, academia, industry and the central laboratories took up the challenge from the earliest days to develop these systems for a broad range of applications. This historical review looks at the contribution the UK has made to the advancement of the technology, the development of systems and components and their exploitation over the last 60 years.
    Type of Medium: Online Resource
    ISSN: 2095-4719 , 2052-3289
    URL: Article
    DOI: 10.1017/hpl.2021.5
    Language: English
    Publisher: Cambridge University Press (CUP)
    Publication Date: 2021
    detail.hit.zdb_id: 2723155-0
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  • 4
    Online Resource
    Online Resource
    The structure of strongly stratified flow over hills: dividing-streamline concept
    Cambridge University Press (CUP) ; 1985
    In:  Journal of Fluid Mechanics Vol. 152 ( 1985-03), p. 249-288
    Details
    In: Journal of Fluid Mechanics, Cambridge University Press (CUP), Vol. 152 ( 1985-03), p. 249-288
    Abstract: In stably stratified flow over a three-dimensional hill, we can define a dividing streamline that separates those streamlines that pass around the hill from those that pass over the hill. The height H s of this dividing streamline can be estimated by Sheppard's simple energy argument; fluid parcels originating far upstream of a hill at an elevation above H s have sufficient kinetic energy to rise over the top, whereas those below H s must pass around the sides. This prediction provides the basis for analysing an extensive range of laboratory observations and measurements of stably stratified flow over a variety of shapes and orientations of hills and with different upwind density and velocity profiles. For symmetric hills and small upwind shear, Sheppard's expression provides a good estimate for H s . For highly asymmetric flow and/or in the presence of strong upwind shear, the expression provides a lower limit for H s . As the hills become more nearly two-dimensional, these experiments become less well defined because steady-state conditions take progressively longer to be established. The results of new studies are presented here of the development of the unsteady flow upwind of two-dimensional hills in a finite-length towing tank. These measurements suggest that a very long tank would be required for steady-state conditions to be established upstream of long ridges with or without small gaps and cast doubt upon the validity of previous laboratory studies.
    Type of Medium: Online Resource
    ISSN: 0022-1120 , 1469-7645
    URL: Article
    DOI: 10.1017/S0022112085000684
    Language: English
    Publisher: Cambridge University Press (CUP)
    Publication Date: 1985
    detail.hit.zdb_id: 1472346-3
    detail.hit.zdb_id: 218334-1
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  • 5
    Online Resource
    Online Resource
    The behaviour of Loligo opalescens (Mollusca: Cephalopoda) as observed by a remotely operated vehicle (ROV)
    Cambridge University Press (CUP) ; 2000
    In:  Journal of the Marine Biological Association of the United Kingdom Vol. 80, No. 5 ( 2000-10), p. 873-883
    Details
    In: Journal of the Marine Biological Association of the United Kingdom, Cambridge University Press (CUP), Vol. 80, No. 5 ( 2000-10), p. 873-883
    Abstract: The behaviour of Loligo opalescens as observed by a remotely operated vehicle (ROV) was analysed. Thirty-nine behavioural components were identified and classed into four categories: chromatic, postural, locomotory, and inking. The frequency with which components were expressed was correlated to whether or not an individual was schooling, shoaling, alone with the ROV, or in the presence of other species. Behaviours observed were compared to those reported for other Loligo species. Observations of schooling and feeding behaviour, and reactions to other species are included.
    Type of Medium: Online Resource
    ISSN: 0025-3154 , 1469-7769
    URL: Article
    DOI: 10.1017/S002531540000285X
    RVK:
    WA 15000
    Language: English
    Publisher: Cambridge University Press (CUP)
    Publication Date: 2000
    detail.hit.zdb_id: 1491269-7
    detail.hit.zdb_id: 281325-7
    SSG: 12
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  • 6
    Online Resource
    Online Resource
    The History of the Department of State IX
    Cambridge University Press (CUP) ; 1912
    In:  American Journal of International Law Vol. 6, No. 1 ( 1912-01), p. 119-148
    Details
    In: American Journal of International Law, Cambridge University Press (CUP), Vol. 6, No. 1 ( 1912-01), p. 119-148
    Abstract: The highest duty of an American diplomatic or consular officer is to protect citizens of the United States in lawful pursuit of their affairs in foreign countries. The document issued in authentication of the right to such protection is the passport. Broadly speaking, the Department issues two kinds of passports — those for citizens and those for persons who are not citizens. Citizens’ passports are ordinary and special; aliens’ passports are for travel in the United States and for qualified protection abroad of those who have taken the first steps to become American citizens. The citizen’s passport is the only document issued by the Department of State to authenticate the citizenship of an American going abroad. The Act of August 18, 1856, makes the issuance to one who is not a citizen a penal offense if it is committed by a consular officer. Before this law was passed the Department did not issue the document to aliens; but it was permitted to this government’s agents abroad sometimes to issue it to others than American citizens. The Personal Instructions to the Diplomatic Agents of the United States of 1853 said: They sometimes receive applications for such passports from citizens of other countries; but these are not regularly valid, and should be granted only under special circumstances, as may sometimes occur in the case of foreigners coming to the United States.
    Type of Medium: Online Resource
    ISSN: 0002-9300 , 2161-7953
    URL: Article
    DOI: 10.2307/2187400
    RVK:
    PR 1000
    Language: English
    Publisher: Cambridge University Press (CUP)
    Publication Date: 1912
    detail.hit.zdb_id: 2940-3
    detail.hit.zdb_id: 2009915-0
    SSG: 2
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