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Topic: International Commission on Stratigraphy

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	International Union of Geological Sciences: Links to IUGS Bodies
		International Commission on the History of Geological Sciences (INHIGEO)
		International Association for Engineering Geology and the Environment
		International Association on the Genesis of Ore Deposits
	www.iugs.org /iugs/links.htm (301 words)

	International Commission on Stratigraphy ICS Stratigraphy Prizes \| GeoSpectrum (Site not responding. Last check: )
		The International Commission on Stratigraphy (ICS) is a leading entity of the International Union of Geological Sciences (IUGS) with responsibility for establishing international standards in stratigraphy, such as the Geological Time Scale and the International Chronostratigraphical Scale, defined by boundary stratotypes (GSSPs).
		Stratigraphy is the core discipline of the geological sciences, concerned with the relationships in time and space of rocks (not just sedimentary, but also igneous and metamorphic rocks) and the varied processes that have formed and affected them.
		To emphasise this key role of stratigraphy, the International Commission on Stratigraphy awards two ICS Prizes to outstanding geoscientists every four years during an International Geological Congress.
	www.agiweb.org /geospectrum/?q=node/101 (617 words)

	Quaternary Palaeoenvironments Group (QPG) » Phil Gibbard
		His approach is based on the rigorous stratigraphy of sedimentary sequences, using a wide range of techniques, and its purpose is to develop detailed frameworks which have provided the basis for palaeoenvironmental, palaeoecological and palaeogeographical reconstructions.
		Subcommission on Quaternary Stratigraphy, International Commission on Stratigraphy: Cambridge.
		Phil reporting to the International Commission on Stratigraphy at the International Geological Congress in Florence in Italy, August 2004.
	www-qpg.geog.cam.ac.uk /people/gibbard (4324 words)

	Stratigraphy Summary
		Stratigraphy, a branch of geology, is basically the study of rock layers and layering (stratification).
		One of stratigraphy's basic concepts is codified in the Law of Superposition, which simply states that, in an undeformed stratigraphic sequence, the oldest strata occur at the base of the sequence.
		Stratigraphy is also commonly used to delineate the nature and extent of hydrocarbon-bearing reservoir rocks, seals and traps in petroleum geology.
	www.bookrags.com /Stratigraphy (3266 words)

	CalendarHome.com - Geologic time scale - Calendar Encyclopedia
		The table of geologic periods presented here is in accordance with the dates and nomenclature proposed by the International Commission on Stratigraphy, and uses the standard color codes of the United States Geologic Survey.
		It is a key aspect of the work of the International Commission on Stratigraphy to reconcile this conflicting terminology and define universal horizons that can be used around the world.
		In 1977, the Global Commission on Stratigraphy (now the International Commission) started an effort to define global references (Global Boundary Stratotype Sections and Points) for geologic periods and faunal stages.
	encyclopedia.calendarhome.com /Geologic_timescale.htm (1813 words)

	Stratigraphy - EvoWiki
		Stratigraphy, a branch of geology, is basically the study of rock layers and layering.
		Biologic, or paleontologic, stratigraphy is based on fossil evidence in the rock layers.
		Biologic stratigraphy depends on the reality of evolution and was one of the first and most powerful lines of evidence for evolution.
	wiki.cotch.net /index.php/Stratigraphy (227 words)

	International Commission on Stratigraphy - Wikipedia, the free encyclopedia
		The International Commission on Stratigraphy concerns itself with stratigraphy on a global scale.
		It is the largest scientific body within the International Union of Geological Sciences.
		One of its main aims is to establish a standard and global geologic time scale by encouraging an international and open debate amongst paleontologists.
	en.wikipedia.org /wiki/International_Commission_on_Stratigraphy (91 words)

	Geotimes - March 2004 - New language for geologic time
		The Stratigraphy Commission of the Geological Society of London (GSL) is calling for a drastic and controversial overhaul of the Stratigraphic Guide, the internationally agreed upon standards for the field of stratigraphy.
		Members of the commission suggest that elements of geochronology and chronostratigraphy be combined to make a new single system, for which they would retain the name chronostratigraphy.
		The commission also suggests that subdivisions within periods and epochs should be limited to the terms early and late, to avoid confusion with the terms upper and lower, which, in English, are often used interchangeably.
	www.geotimes.org /mar04/NN_timelanguage.html (913 words)

	Stratigraphy - Wikipedia, the free encyclopedia
		Stratigraphy, a branch of geology, is basically the study of rock layers and layering (stratification).
		The first practical large scale application of stratigraphy was by William Smith in England in the 1790s and early 1800s.
		Stratigraphy includes two related subfields: lithologic or lithostratigraphy and biologic stratigraphy or biostratigraphy.
	en.wikipedia.org /wiki/Stratigraphy (1608 words)

	Teaching Documents about Stratigraphy and Historical Geology, Links for Palaeobotanists
		This project aims to reconcile the international stratigraphic standards with many of the regional and archaic naming schemes that appear in the literature.
		The purposes and spirit of this tutorial are to promote international agreement on principles of stratigraphic classification and to develop an internationally acceptable stratigraphic terminology and rules of stratigraphic procedure-all in the interest of improved accuracy and precision in international communication, coordination, and understanding.
		International Commission on Stratigraphy (ICS) ICS is the largest scientific body within the International Union of Geological Sciences (IUGS).
	www.mineralogie.uni-wuerzburg.de /palbot/teach/stratiteach.html (2158 words)

	Geology: Stratigraphy
		So stratigraphy, a composition of strata and graphein, the Greek word for to draw, means to draw or otherwise record the different stratas.
		Stratigraphy is very important for speleology, as only certain rocks are soluble and thus karstified.
		International Commission on Stratigraphy (ICS), a scientific body within the International Union of Geological Sciences (IUGS).
	www.showcaves.com /english/explain/Geology/Stratigraphy.html (287 words)

	[No title]
		An enthusiastic worker on the Silurian stratigraphy since 1971, is my colleague Diana Pöthe de Baldis, who is working on palynomorphs (acritarchs, chitinozoans and prasinophyceae) of the Tucunuco Group and Tambolar Formation, in the Central Precordillera; for her Doctoral Thesis theme.
		The Conference will,be preceded by a field excursion to Scotland and northern England, and succeeded by on to Wales and the Welsh Borderland.
		Gutiérrez-Marco, J.C. and Rábano, I. (Eds.) Proceedings of the Sixth International Graptolite Conference of the GWG (IPA) and the 1998 Field Meeting of the International Subcommission on Silurian Stratigraphy (ICS.IUGS).
	home.gli.cas.cz /storch/backup/D/TEXTY/SilurianTimes7.doc (11175 words)

	Page Title (Site not responding. Last check: )
		Officers of subcommissions of the International Commission on Stratigraphy (ICS) are elected for a 4 year period between two International Geological Congresses.
		In 1998, after the SDS meeting in Bologna during ECOS VII, SDS held a provisional ballot concerning different proposals that were made for the subdivision of the Emsian, Frasnian and Famennian stages.
		Gradstein and J. Ogg (incoming chairman and secretary of the ICS) write: "The Devonian Subcom-mission is truly the leading team within the International Commission on Stratigraphy".
	sds.uta.edu /nwsltr_17/page2.html (595 words)

	Personal Web Page
		It is an official body of the International Commission on Stratigraphy (ICS, of which the various Subcommission chairmen are voting members) and of the International Union of Geological Sciences (IUGS).
		Jurassic brachiopods; marine sequence stratigraphy of the Qinghai-Tibetan Plateau, eastern Tethys; Mesozoic-Cenozoic sedimentary-tectonic evolution of the Himalayas.
		Triassic and Jurassic palynology and stratigraphy; classi-fication and correlation of marine/nonmarine Triassic and Lower Jurassic strata; Triassic/Jurassic boundary.
	www.es.ucl.ac.uk /people/bown/ISJSwebsite.htm (2019 words)

	Appendix 2 - 2004 (Site not responding. Last check: )
		The aims of the IPA are to promote and coordinate international cooperation in palaeontology of all geological periods and to encourage the integration and synthesis of all palaeontological knowledge.
		The IPA has long been linked with the international journal of palaeontology and stratigraphy, Lethaia, which today is a formal publication outlet for the IPA together with the International Commission on Stratigraphy (ICS).
		The first International Palaeontological Congress (IPC2002), a highly successful event, was held in Sydney on 6-10 July, 2002, under the aegis of IPA together with the member palaeontological society, the Association of Australasian Palaeontologists (AAP).
	ipa.geo.ku.edu /appendix204.html (692 words)

	Subcomission on Quaternary Stratigraphy, ICS
		The Subcommission on Quaternary Stratigraphy (SQS) is a constituent body of the International Commission on Stratigraphy (ICS), the largest scientific organisation within the International Union of Geological Sciences (IUGS).
		Its most important major objective is the establishment of a standard, globally-applicable stratigraphical scale, which it seeks to achieve through the co-ordinated contributions of a network of Subcommissions and Working Groups with a specific, limited mandate.
		International Stratigraphic Guide - abridged version developed to promote international agreement on principles of stratigraphic classification and to develop an internationally acceptable stratigraphic terminology and rules of procedure
	www.quaternary.stratigraphy.org.uk (0 words)

	Quantitative Stratigraphy poster
		Methods of quantitative stratigraphy combine mathematical logic with stratigraphic principles (e.g., law of superposition of strata; speciation, possible acme, and extinction of taxa) allowing the user to retain full control over input and results.
		Part of this work was performed under the auspices of the International Geological Correlation Program (IGCP Project 148: Evaluation and Development of Quantitative Stratigraphic Correlation Techniques, 1976-1985) and the International Commission on Stratigraphy (Committee for Quantitative Stratigraphy, from 1985 onward).
		The purpose of this WWW poster is to introduce basic concepts of quantitative stratigraphy, particularly as applied to fossil distributions frequently found in exploration wells in frontier basins.
	www.uh.edu /~jbutler/anon/posters.html (1534 words)

	Vacilando.eu on Geologic Timescale Table
		The principles underlying geologic (geological) time scales were laid down by Nicholas Steno in the late 17th century.
		Geologists and paleontologists constructed the geologic table based on the relative positions of different strata and fossils, and estimated the time scales based on studying rates of various kinds of weathering, erosion, sedimentation, and lithification.
		The commission's most recent work is described in the 2004 geologic time scale of Gradstein et al.
	www.vacilando.eu /?title=geologic-timescale-table (1997 words)

	com_nat
		The mission of the various national scientific committees of Belgium is to promote and coordonnate both at national and international levels the activities of their relevant disciplines.
		Bultynck : chairman of the International subcommission on Devonian Stratigraphy.
		The national commission of stratigraphy of Belgium refers to the National Committee of Geological Sciences for matters dealing with the stratigraphy of Belgium.
	www.ulg.ac.be /geolsed/GB/com_nat.htm (406 words)

	Palaeos Geochronology: Stratigraphy-1 (Site not responding. Last check: )
		To return to our example, the usual biostratigraphic markers in Middle Paleozoic stratigraphy are graptolites, conodont "jaw" parts, and thelodont scales.
		The International Commission on Stratigraphy ("ICS") has attempted to standardize all the names, at least down to the level of "ages." However, a lot of the literature still uses local or obsolete names which have no precise definitions.
		Since this is a science, its important to keep the nature of these definitions somewhere in the back of one's mind.
	www.palaeos.com /Geochronology/stratigraphy.html (1575 words)

	Inter. Subcommission on Cambrian Stratigraphy
		This partly reflects the scarcity of suitable biostratigraphic markers for intercontinental correlation at the stage level and faunal provincialism.
		The time interval is of growing international interest and research is being actively pursued by ISCS members.
		Activities of the International Subcommission on Cambrian Stratigraphy
	www.uni-wuerzburg.de /palaeontologie/ISCS (484 words)

	Subcomission on Quaternary Stratigraphy, ICS (Site not responding. Last check: )
		The Cenozoic Era: Lyellian (chrono) stratigraphy and nomenclatural reform at the millennium.
		It was decided therefore to organise a discussion meeting with an international group of Quaternary scientists, including both marine and continental workers.
		The INQUA Executive Committee polled its constituents on the status of the 'Quaternary.' The Executive Committee asked individuals and INQUA National Committees whether the recommendation of the International Commission on Stratigraphy (ICS), based on discussions at Leuven in the autumn of 2005, was acceptable or unacceptable (request below).
	www.quaternary.stratigraphy.org.uk /meetings/task.html (1376 words)

	Department of Geology- The University of Iowa
		XIV International Congress on Carboniferous and Permian Stratigraphy, Calgary, Canada, August 20, 1999, “Proposal toward consensus on further subdivision of the two subsystems of the Carboniferous System” (with E. Villa).
		XIV International Congress on Carboniferous and Permian Stratigraphy, Calgary, Canada, August 20, 1999, “Proposal for Desmoinesian-Missourian Stage boundary stratotype, a candidate for a GSSP” (with D.R. Boardman and J.E. Barrick).
		Edited guidebook ‘Stratigraphy and biostratigraphy of the Mississippian Subsystem (Carboniferous System) in Its Type Region, the Mississippi River Valley of Illinois, Missouri, and Iowa’ for I.U.G.S. Subcommission on Carboniferous Stratigraphy, Field and General Meeting in St. Louis, September 8-13, 2001.
	www.uiowa.edu /~geology/people/faculty/heckel/cv.html (8869 words)

	Publications: International Stratigraphic Chart Published
		The International Union of Geological Sciences (IUGS) announces the publication of the Second Edition of its popular International Stratigraphic Chart.
		This edition of the chart, which was co-published with UNESCO, embodies the recent work of many Subcommissions of the IUGS International Commission on Stratigraphy (ICS) to define and standardize international stratigraphic nomenclature.
		It gives a clear picture of the state of international stratigraphic nomenclature, including drawing clear distinctions between formal, semi-formal, and informal units, and between internationally approved and recommended chronostratigraphic units provisionally designated for international use.
	www.iugs.org /iugs/pubs/intstratchart.htm (0 words)

	International Subcommission on Paleogene Stratigraphy (ISPS)
		Voting and Corresponding Members are selected regionally to provide representative expertise in the Paleogene stratigraphy of each major area and according to their speciality in order to cover the main fields of stratigraphic tools used in the Paleogene.
		At present, the GSSPs of the base of the Danian (= Cretaceous/Paleogene Boundary), the base of the Ypresian (= Paleocene/Eocene Boundary), the base of the Rupelian (= Eocene/Oligocene Boundary) and the base of the Aquitanian (= Paleogene/Neogene Boundary) have been established and ratified by the International Union of Geological Sciences.
		We hope to present all the proposals for these remaining GSSPs prior to the next International Geological Congress in 2008.
	wzar.unizar.es /isps/index.htm (269 words)

	Railsback's Graduate Students and their Academic Lineage
		His dissertation was on the "Stratigraphy, petrography, and depositional environment of the Tully Limestone (Devonian) in New York State and adjacent region".
		He has served on the Subcommission on Carboniferous Stratigraphy of the International Commission on Stratigraphy of the International Union of Geological Sciences.
		Richard Montgomery Field (1885-1961; Sc.D. Harvard University, 1918) His dissertation research was on "The stratigraphy of the Middle Ordovician formations of central and north-central Pennsylvania".
	www.gly.uga.edu /railsback/AG.html (3331 words)

	The Chinese Academy of Sciences
		He served as vice-president of the International Palaeontological Association, member of the International Commission of Stratigraphy, chairman of the Subcommission on Permian Stratigraphy and the Working Group on the Lopingian.
		He proposed a new international Permian stratigraphic framework for replacing the traditional Russian one used for 150 years.
		The new system was adopted by International Commission of Stratigraphy in 1998.
	english.cas.ac.cn /english/news/detailnewsb.asp?InfoNo=26110 (370 words)

	Chronos (Site not responding. Last check: )
		A basic goal of Stratigraphy is to reconstruct the history of the Earth and eventually of extraterrestrial bodies.
		Stratigraphy makes possible the synthesis of a unified geological science from its component parts.
		The development of integrated, interactive chronostratigraphic and stratigraphic databases is indispensible for future earth science.
	www.purdue.edu /eas/chronos/onepage_summary.htm (342 words)

	The Dictionary of Quaternary Acronyms and Abbreviations: I
		International Centre for the Study of the Preservation and Restoration of Cultural Property (UNESCO).
		International Council on Monuments and Sites, international NGO dedicated to the conservation of the world's historic monuments and sites, advisory body to UNESCO.
		International Polar Year, 2007-2008, other International Polar Years were declared for 1882, and 1932-1933.
	www.scirpus.ca /cgi-bin/dictqaa.cgi?option=i (726 words)

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