United Kingdom Climate Change Impacts Review Group. 1991. The Potential Effects of Climate Change in the United Kingdom. First Report. xvi + 124 pp. London: HMSO. Price £8.50 (paperback). ISBN 0 11 752359 3. - Volume 128 Issue 4
B. A. Tapp & J. R. Watkins 1990. Energy and Mineral Resource Systems: An Introduction. viii + 151 pp. Cambridge, New York, Port Chester, Melbourne, Sydney: Cambridge University Press. Price £22.95, US 13.95 (paperback). ISBN 0 521 30287 0; 0 521 31616 2 (pb). - Volume 130 Issue 3
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This chapter contains sections titled: Development of Historical Geology in Britain and Ireland Why Study Historical Geology? Arranging and Dating Events: Stratigraphy Locating Events in Space: Palaeogeography Specifying Geological Environments Telling the Story: Analogues and Models The Geological Organization of Britain and Ireland References
Research Article| June 01, 1977 Origins of some ophiolite-related metamorphic rocks of the “Tethyan” belt N. H. Woodcock; N. H. Woodcock 1Department of Geology, Downing Street, Cambridge CB2 3EQ, United Kingdom Search for other works by this author on: GSW Google Scholar A.H.F. Robertson A.H.F. Robertson 2Grant Institute of Geology, West Mains Road, Edinburgh EH9 3JW, United Kingdom Search for other works by this author on: GSW Google Scholar Author and Article Information N. H. Woodcock 1Department of Geology, Downing Street, Cambridge CB2 3EQ, United Kingdom A.H.F. Robertson 2Grant Institute of Geology, West Mains Road, Edinburgh EH9 3JW, United Kingdom Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1977) 5 (6): 373–376. https://doi.org/10.1130/0091-7613(1977)5<373:OOSOMR>2.0.CO;2 Article history First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation N. H. Woodcock, A.H.F. Robertson; Origins of some ophiolite-related metamorphic rocks of the “Tethyan” belt. Geology 1977;; 5 (6): 373–376. doi: https://doi.org/10.1130/0091-7613(1977)5<373:OOSOMR>2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract A review of the “Tethyan” belt between Yugoslavia and Oman shows that metamorphic rocks, up to the amphibolite facies, occur at the base of many of the allochthonous ophiolite sheets. Although these rocks have generally been interpreted as slivers of older metamorphic basement, we argue for their formation by metamorphism of the tectonically overridden Mesozoic sedimentary and volcanic sequences during ophiolite emplacement. Metamorphism at a high structural level is indicated by the absence of high pressure assemblages.Both frictional heating and the residual heat of thermally immature oceanic crust are theoretically capable of producing amphibolite facies temperatures. Where “old” oceanic crust has been emplaced, frictional heating is likely to dominate, but residual heat may be more important during emplacement of “young,” thermally immature crust. Implications for the geotectonic settings of specific Tethyan ophiolites are mentioned. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.
Research Article| August 01, 2004 Life span and fate of basins Nigel H. Woodcock Nigel H. Woodcock 1Department of Earth Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EQ, UK Search for other works by this author on: GSW Google Scholar Author and Article Information Nigel H. Woodcock 1Department of Earth Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EQ, UK Publisher: Geological Society of America Received: 25 Feb 2004 Revision Received: 21 Apr 2004 Accepted: 22 Apr 2004 First Online: 02 Mar 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (2004) 32 (8): 685–688. https://doi.org/10.1130/G20598.1 Article history Received: 25 Feb 2004 Revision Received: 21 Apr 2004 Accepted: 22 Apr 2004 First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Nigel H. Woodcock; Life span and fate of basins. Geology 2004;; 32 (8): 685–688. doi: https://doi.org/10.1130/G20598.1 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract The life span of each main class of sedimentary basin is estimated from published data. Life spans vary over at least three orders of magnitude, from <1 m.y. for trench basins to >100 m.y. for passive-margin and intracratonic basins. The life-span estimates are used to calibrate a chart of basin groups that focuses on the likely basin fates; i.e., depositional, deformational, or thermal. Consequent fates, predetermined by the tectonic setting of a particular basin class, are distinguished from contingent fates, which are independent of basin type. Accretion of trench-basin fill is, for example, a consequent fate, whereas inversion (far-field shortening) of a rift basin is a contingent fate. Life-span data are also used to calibrate the Wilson Cycle and indicate that it has an average duration of ∼260 m.y. This is certainly an underestimate, because basin life spans are an imperfect proxy for the duration of subduction and collision zones. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.
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A new analysis shows that most (59 %) plate boundaries have a relative velocity vector that is markedly oblique (greater than 22?) to the boundary normal. A significant proportion (14%) have vectors that are nearly (? 22?) parallel to the boundary. Accommodation of the oblique motion usually involves strike-slip faulting, but the kinematic role of these faults differs at divergent and convergent boundaries. Four main types of plate-boundary related strike-slip faults are distinguished: ridge transforms, boundary transforms, trench-linked strike-slip faults and indent-linked strike-slip faults. Discrimination of the four types should be possible in ancient orogenic belts, but is complicated by the common reactivation of the strike-slip zones in other roles. Plate-boundary related strike-slip faults form major lineaments at the present day. Ridge transforms have a low preservation potential in continents. Boundary transforms and indent-linked faults often re-use old lineaments, but trench-linked strike-slip faulting is an effective method of forming new lineaments in continental crust. Strike-slip faulting in general is less commonly recognized in ancient orogenic belts than its abundance in present plate-boundary orogens requires. This under-recognition results both from poor understanding of strike-slip kinematics and from deeper prejudices about the way in which orogenic belts form.
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