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ICS Subcommission Annual Report 2009

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ICS Subcommission Annual Report 2009 INTERNATIONAL UNION OF GEOLOGICAL SCIENCES INTERNATIONAL COMMISSION ON STRATIGRAPHY Chair Prof. Stanley FINNEY, Department of Geological Sciences, California State University at Long Beach, Long Beach, CA 90840, USA TEL: 1-562-985-8637 (office); FAX: 1-562-985-8638; E-mail: [email protected] Vice Chair Prof. Shanchi PENG, Nanjing Institute of Geology & Palaeontology, Chinese Academy of Sciences, 39 East Beijing St., Nanjing 210008, China TEL and FAX: 86-25-8328 2135; E-mail: [email protected] Secretary General Dr. Paul R. BOWN, Department of Earth Sciences, University College London, Gower Street, London WC1E 6BT, UK TEL: 44-0-20-7504-2431 office; FAX 44-0-20-7388-7614; E-mail: [email protected] December 2009 Compiled ICS Subcommission Annual Reports for 2009 1 SUBCOMMISSION ON QUATERNARY STRATIGRAPHY ANNUAL REPORT 2009 1. TITLE OF CONSTITUENT BODY and NAME OF REPORTER Subcommission on Quaternary Stratigraphy (SQS) Philip GIBBARDChairman, SQS Cambridge Quaternary, Department of Geography, University of Cambridge, Downing Street, CAMBRIDGE CB2 3EN, England. Tel: +44 (0)1223 333924; Fax: +44 (0)1223 333392, E-mail: plg1@ cam.ac.uk 2. OVERALL OBJECTIVES AND FIT WITHIN IUGS SCIENCE POLICY 1. Rationalisation of global chronostratigraphical classification. 2. Intercalibration of fossil biostratigraphies, integrated zonation and recognition of global datum points. 3. Definition of Subseries/Series boundaries and selection of global stratotype sections. 4. Correlation of Quaternary rock successions and events, including terrestrial to marine sequences. The objectives satisfy the IUGS mandate of fostering international agreement on nomenclature and classification in stratigraphy; facilitating international co-operation in geological research; improving publication, dissemination, and use of geological information internationally; encouraging new relationships between and among disciplines of science that relate to Quaternary geology world-wide; attracting competent students and research workers to the discipline; and fostering an increased awareness among individual scientists world-wide of what related programmes are being undertaken. 3. ORGANISATION ISQS is a Subcommission of the International Commission on Stratigraphy. Officers (chairman, one vice-chairman, secretary), voting members (18). (see Appendix for complete listing). There are currently four Working Groups established the remit of three of which is the definition of GSSPs for the Early-Middle, Middle/Late Pleistocene and Late Pleistocene/Holocene boundaries and the fourth is to investigate the validity and applicability of the term Anthropocene. A fifth working group is currently planned that will examine the utility of formal definition of short-time divisions. These individuals represent a broad spectrum of specialised stratigraphical disciplines from throughout the World. Publication of information is by website. 2 3a. Nominated Officers for 2008-2010: Chairman: Professor Philip Gibbard Godwin Institute of Quaternary Research Department of Geography, University of Cambridge Downing Street, Cambridge CB2 3EN, England E-mail: [email protected] Vice-Chair: Professor Jerry McManus Wood's Hole Oceanographic Institute Wood's Hole, MA, USA E-mail: [email protected] 2nd Vice-Chair: Dr. John van Couvering (resigned September 2009) American Museum of Natural History Central Park West at 79 St., New York, NY 10024 USA Tel: 212-769-5657; Fax: 212-769-5653 E-mail: [email protected] Secretary: Professor Thijs van Kolfschoten Faculty of Archaeology, Leiden University Reuvenplaats 4, 2300 RA Leiden, The Netherlands E-mail: [email protected] 4. EXTENT OF NATIONAL/REGIONAL/GLOBAL SUPPORT FROM SOURCES OTHER THAN IUGS Support of the Chairman's University (University of Cambridge), and the International Quaternary Association (INQUA). Also support from national stratigraphical bodies, including in particular the Geological Society Stratigraphical Commission (GB) and the German Stratigraphy Commission. 5. CHIEF ACCOMPLISHMENTS IN 2009 Three GSSP Working Groups are established and all continue to have fully functioning formal working groups (see below for membership lists). An additional working group on the Anthropocene was established during the year. The Working Group on the Lower/Middle Pleistocene Subseries boundary currently comprises 11 members. It is chaired by Professor B. Pillans (ANU). Work has continued this year on the boundary to be defined in a marine section at a point “close to” the Matuyama/Brunhes boundary, three candidate GSSPs were to be evaluated: two in southern Italy (Montalbano Jonico 3 section and Valle di Manche section), and a third in Japan (Chiba section). Following last year’s withdrawl of the Montalbano Jonico section as a candidate GSSP, investigations have continued on the choice of GSSP between the two remaining candidate sections; either the Valle di Manche section (Italy) and the Chiba section (Japan). The group had planned to have the GSSP decision made, by voting, earlier this year. However, this process was not completed, with some members asking for further information on the two candidate sections before making a decision. Japanese and Italian colleagues have been asked to prepare final cases for their respective candidate sections. Once these are received, a summary document will be prepared, outlining the relative merits and weaknesses of each candidate section, with a view to reaching a decision early in 2010. The GSSP proposal is likely to require linkage with a proposed GSSP for the base of a ‘standard stage’ for the period – provisionally termed the Ionian. The Working Group on the Middle/Upper Pleistocene Subseries boundary has continued throughout the year under the chairmanship of Professor T.Litt (Bonn). The aim was to find an agreement about the selection of a geological section for a potential boundary stratotype (GSSP). A GSSP proposal defining the Middle/Upper (Late) Pleistocene boundary was already submitted last year. It was proposed that a high-resolution core sequence from the Amsterdam Terminal (the Eemian Stage parastratotype) should constitute the Global Stratotype Section and Point (GSSP) for the base of the Upper (Late) Pleistocene Subseries (Quaternary System/Period). The International Commission of Stratigraphy has approved this GSSP proposal. The voting by the Quaternary Subcommission was 100% “Yes” (18 voting). The votes received from the ICS Full Commission were 10 “Yes”(71%), and 4 “No”. The request for IUGS ratification of this GSSP definition was considered by the IUGS Executive Committee, however especially based on procedural matters, protocol and principle, the IUGS EC did not ratify this proposal as presented by the SQS/ICS. We were encouraged to prepare a revised version, which is in preparation (with special emphasis on stage/age definition). The resubmission is planned for 2010. The Working Group on the Pleistocene-Holocene boundary, chaired by Professor M.Walker (Lampeter), completed its primary task last year by defining the base of the Holocene Series in the new Greenland NorthGRIP (NGRIP) ice core. A publication detailing the GSSP information was published in issue 1 of the Journal of Quaternary Science: Walker, M., Johnsen, S., Rasmussen, S. O., Popp, T., Steffensen, J.-P., Gibbard, P., Hoek, W., Lowe, J., Andrews, J., Björk, S., Cwynar, L. C., Hughen, K., Kershaw, P., Kromer, B., Litt, T., Lowe, D. J., Nakagawa, T., Newnham, R., and Schwander, J. 2009 Formal definition and dating of the GSSP (Global Stratotype Section and Point) for the base of the Holocene using the Greenland NGRIP ice core, and selected auxiliary records. Journal of Quaternary Science, 24, 3-17. The Holocene working group will remain constituted to examine the potential utility of possible formal subdivision of the series. The Anthropocene Working Group, chaired by Dr J.Zalasiewicz (Leicester) was created in the summer of 2009, following the proposal of the term Anthropocene by Crutzen (2002), its subsequent analysis by the Stratigraphy Commission of the Geological Society of London 4 (Zalasiewicz et al. 2008) and a session convened at the 2008 Fall Meeting of the American Geophysical Union on this theme. The purpose of the Working Group is to examine the term and its underlying stratigraphic basis in more detail and to consider, and subsequently make recommendations on, its possible formalization. Activities this year have included the submission to (and acceptance by) the Royal Society of London of a special volume of the Proceedings of the Royal Society of London devoted to this theme. This will include papers on historical perspectives, stratigraphic context, sedimentation, climate, land cover, ocean chemistry, cryosphere, biodiversity, deep time analogues and societal response. Publication will likely be in late 2010 or early 2011. In addition, invited papers on the Anthropocene have been submitted to the Geological Time Scale 2010 volume being compiled (Gradstein et al.) and to Environmental Science and Technology. The aim for the forthcoming year is to continue setting up the Working Group, to provide appropriate cover of disciplines in both ‘deep time’ stratigraphy (to include the Holocene) and in contemporary environmental phenomena, and also to provide appropriate global representation; to establish and discuss methodologies to enable realistic comparison of present and deep time processes; and to make initial comparisons of the scale of contemporary change relative to changes see in the geological
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