Biostratigraphic Determinations of Fossils from the Subsurface of the Districts of Franklin and Mackenzie
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Conodont Stratigraphy of a Highly Tectonised Silurian-Devonian Section in the San Basilio Area (SE Sardinia, Italy)
Bollettino della Societa Paleontologica Italiana 40 (3), 2001 ISSN 0375-7633 Modena, Dicembre 2001 Conodont stratigraphy of a highly tectonised Silurian-Devonian section in the San Basilio area (SE Sardinia, Italy) Carlo CORRADINI F rancesco LEONE Alfredo Loi Enrico SERPAGLI Dipartimento del Museo di Paleobiologia Dipartimento di Scienze della Terra Dipartimento del Museo di Paleobiologia e dell'Orto Botanico Universita di Cagliari e dell'Orto Botanico Universidt di Modena e Reggio Emilia Universita di Modena e Reggio Emilia KEYWORDS- Conodonts, Biostratigraphy, Tectonics, Silurian, Devonian, SE Sardinia. ABSTRACT- Several conodont species belonging to five "late Silurian biozones (Ancoradella ploeckensis, Polygnathoides siluricus, Ozarkodina crispa, Ozarkodina remscheidensis, Oulodus elegans detortus) and four Early and Late Devonian biozones (delta, pesavis, kitabicus-excavatus and Late rhenana) allow a better interpretation of stratigraphy and tectonics of the San Basilio area in western Gerrei. Frasnian sediments are documented for the first time in SE Sardinia. RIASSUNTO- [Stratigrafia a conodonti di una sezione forremente tettonizzata di eta Siluriano-Devoniano nell'area di San Basilio (Sardegna SE)] - Grazie alla biostratigrafia a conodonti viene interpretata la complessa tettonica di una sezione nell'area di San Basilio (Sardegna sud-orientale) e viene ricostruita la successione originaria. Sono documentate cinque biozone a conodonti del Siluriano superiore (Ancoradella eioeckensis, Polygnathoides siluricus, Ozarkodina crispa, -
Schmitz, M. D. 2000. Appendix 2: Radioisotopic Ages Used In
Appendix 2 Radioisotopic ages used in GTS2020 M.D. SCHMITZ 1285 1286 Appendix 2 GTS GTS Sample Locality Lat-Long Lithostratigraphy Age 6 2s 6 2s Age Type 2020 2012 (Ma) analytical total ID ID Period Epoch Age Quaternary À not compiled Neogene À not compiled Pliocene Miocene Paleogene Oligocene Chattian Pg36 biotite-rich layer; PAC- Pieve d’Accinelli section, 43 35040.41vN, Scaglia Cinerea Fm, 42.3 m above base of 26.57 0.02 0.04 206Pb/238U B2 northeastern Apennines, Italy 12 29034.16vE section Rupelian Pg35 Pg20 biotite-rich layer; MCA- Monte Cagnero section (Chattian 43 38047.81vN, Scaglia Cinerea Fm, 145.8 m above base 31.41 0.03 0.04 206Pb/238U 145.8, equivalent to GSSP), northeastern Apennines, Italy 12 28003.83vE of section MCA/84-3 Pg34 biotite-rich layer; MCA- Monte Cagnero section (Chattian 43 38047.81vN, Scaglia Cinerea Fm, 142.8 m above base 31.72 0.02 0.04 206Pb/238U 142.8 GSSP), northeastern Apennines, Italy 12 28003.83vE of section Eocene Priabonian Pg33 Pg19 biotite-rich layer; MASS- Massignano (Oligocene GSSP), near 43.5328 N, Scaglia Cinerea Fm, 14.7 m above base of 34.50 0.04 0.05 206Pb/238U 14.7, equivalent to Ancona, northeastern Apennines, 13.6011 E section MAS/86-14.7 Italy Pg32 biotite-rich layer; MASS- Massignano (Oligocene GSSP), near 43.5328 N, Scaglia Cinerea Fm, 12.9 m above base of 34.68 0.04 0.06 206Pb/238U 12.9 Ancona, northeastern Apennines, 13.6011 E section Italy Pg31 Pg18 biotite-rich layer; MASS- Massignano (Oligocene GSSP), near 43.5328 N, Scaglia Cinerea Fm, 12.7 m above base of 34.72 0.02 0.04 206Pb/238U -
PALEOZOIC (CAMBRIAN THROUGH DEVONIAN) Anoxltropic BIOTOPES
Palaeogeography, Palaeoclimatology, Palaeoecology, 74 (1989): 3-13 3 Elsevier Science Publishers B.V., Amsterdam -- Printed in The Netherlands PALEOZOIC (CAMBRIAN THROUGH DEVONIAN) ANOXlTROPIC BIOTOPES W. B. N. BERRY, P. WILDE and M. S. QUINBY-HUNT Marine Sciences Group, Department of Paleontology, University of California, Berkeley, CA 94720 (U.S.A.) (Received April 27, 1989) Abstract Berry, W. B. N., Wilde, P. and Quinby-Hunt, M.S., 1989. Paleozoic (Cambrian through Devonian) anoxitropic biotopes. Palaeogeogr., Palaeoclimatol., Palaeoecol., 74:3 13. The oxygen-poor to denitrified waters of modern oceans provide an analog for open ocean conditions which contained the Early Paleozoic "graptolite" biotope. Certain euphausiids, other zooplankton and fish, as demonstrated in the Eastern Tropical Pacific, are found concentrated in and about denitrified waters. The boundary zone between oxic and denitrified waters show intense organismal growth due to the increased chemical availability of nutrients as reduced nitrogen compounds. Such waters are areally limited in the present cold and well-ventilated modern ocean. The distribution patterns showing attraction to low or oxygen-depleted waters (anoxitropy) in these modern open marine faunas suggest that Early Paleozoic plankton and nekton, preserved in lithofacies formed under low oxygen or anoxic coditions, could have been similarly attracted to the more extensive ancient denitrified and anoxic waters. The major Paleozoic faunal groups, in order of their occupation of the niche, include agnostid and olenid trilobites, graptoloid graptolites, styliolinids, thin-shelled bivalves, small orthocone nautiloids, and early ammonoids. The expansion of low-oxygen to anoxic waters across the shelves during warm climates in the Early Paleozoic may be correlated with major evolutionary radiations in the graptolites and possibly in the early ammonites. -
Lower Devonian Rugose Coral Faunas from the Cantabrian Mountains (NW Spain): Phases of Development and Response to Sea-Level Fluctuations
Lower Devonian rugose coral faunas from the Cantabrian Mountains (NW Spain): phases of development and response to sea-level fluctuations 1 2 Francisco Soro , Stefan SCHRöDER Sorn, F. & SCHRÖDER, 5., 2007: Lower Devonian rugose coral faunas from the Cantabrian Mountains (NW Spain): phases of development and response to sea-level fluctuations. - In: HusMANN, B. & P1LLER, W. E. (Eds.): Fossil Corals and Sponges. Proceedings of the 91h International Symposium on Fossil Cnidaria and Porifera. - Österr. Akad. Wiss., Schriftenr. Erdwiss. Komm. 17: 199-213, 2 Figs., 2 Pis., Wien. Abstract: The Devonian history of the Cantabrian Mountains (NW Spain), as registered in the stratigraphic series, is characterized by events of variable importance and geographic significance, which are reflected in the lithology and in the fossil content. They are called geobiologic events. BARNES et al. (1996) mentioned more than 14 Devonian global bioevents. Three of them, the sulcatus, Zlichov-Basal and Daleje-Cance//ata events, have been recognized in the Lower Devonian (Rafieces-La Vid Groups, Lebanza and Abadfa Formations). Another one, the Chotec Jug/eri event, is observed close to the Lower-Middle Devonian boundary (uppermost part of the Moniello, Santa Lucfa and Polentinos Formations; lowermost Eifelian) of the Cantabrian Mountains. In this paper, six phases of development of the Lower Devonian rugose corals from the Can tabrian Mountains, their relation to global sea-level fluctuations as weil as lithologic and palaeon tologic features are analyzed in the neritic (Asturo-Leonian) and pelagic (Palentine) domains. Key words: Cantabrian Mountains, reefal phases, stratigraphy, bioevents, sea-level fluctuations Contents 1. lntroduction ............................................................ 200 2. Phases of coral development in the Lower Devonian of the Cantabrian Mountains and their relation to bioevents ................................................. -
Revised Sequence Stratigraphy of the Ordovician of Baltoscandia …………………………………………… 20 Druzhinina, O
Baltic Stratigraphical Association Department of Geology, Faculty of Geography and Earth Sciences, University of Latvia Natural History Museum of Latvia THE EIGHTH BALTIC STRATIGRAPHICAL CONFERENCE ABSTRACTS Edited by E. Lukševičs, Ģ. Stinkulis and J. Vasiļkova Rīga, 2011 The Eigth Baltic Stratigraphical Conference 28 August – 1 September 2011, Latvia Abstracts Edited by E. Lukševičs, Ģ. Stinkulis and J. Vasiļkova Scientific Committee: Organisers: Prof. Algimantas Grigelis (Vilnius) Baltic Stratigraphical Association Dr. Olle Hints (Tallinn) Department of Geology, University of Latvia Dr. Alexander Ivanov (St. Petersburg) Natural History Museum of Latvia Prof. Leszek Marks (Warsaw) Northern Vidzeme Geopark Prof. Tõnu Meidla (Tartu) Dr. Jonas Satkūnas (Vilnius) Prof. Valdis Segliņš (Riga) Prof. Vitālijs Zelčs (Chairman, Riga) Recommended reference to this publication Ceriņa, A. 2011. Plant macrofossil assemblages from the Eemian-Weichselian deposits of Latvia and problems of their interpretation. In: Lukševičs, E., Stinkulis, Ģ. and Vasiļkova, J. (eds). The Eighth Baltic Stratigraphical Conference. Abstracts. University of Latvia, Riga. P. 18. The Conference has special sessions of IGCP Project No 591 “The Early to Middle Palaeozoic Revolution” and IGCP Project No 596 “Climate change and biodiversity patterns in the Mid-Palaeozoic (Early Devonian to Late Carboniferous)”. See more information at http://igcl591.org. Electronic version can be downloaded at www.geo.lu.lv/8bsc Hard copies can be obtained from: Department of Geology, Faculty of Geography and Earth Sciences, University of Latvia Raiņa Boulevard 19, Riga LV-1586, Latvia E-mail: [email protected] ISBN 978-9984-45-383-5 Riga, 2011 2 Preface Baltic co-operation in regional stratigraphy is active since the foundation of the Baltic Regional Stratigraphical Commission (BRSC) in 1969 (Grigelis, this volume). -
New Data on the Devonian Plant and Miospores from the Lode Formation, Latvia
SCIENTIFIC PAPERS UNIVERSITY OF LATVIA 2012, Vol. 783, EARTH AND ENVIRONMENTAL SCIENCES pp. 46–56 New Data on the Devonian Plant and Miospores from the Lode Formation, Latvia Aleftina Jurina*, Marina Raskatova** *Department of Palaeontology, Faculty of Geology, Moscow State University Moscow, 119991 Vorobjevy Gory, GSP 1, Russia E-mail: [email protected] **Geological Department, Voronezh State University Voronezh, University Square 1, Russia E-mail: [email protected] The higher plant of Progymnospermopsida Svalbardia bankssi Matten is described from taphocoenosis A of the Devonian Lode Formation in Lode clay pit. This locality is the second in the world besides the type locality from North America where this plant has been found. Miospores taken from the same deposits containing impressions of S. banksii demonstrate the Givetian age of the taphocoenosis A. Key words: Frasnian • Givetian • Lode clay pit • miospores • progymnosperm. Manuscript submitted 5 October 2011; accepted 12 December 2011. Introduction Devonian period is characterized by rapid development of higher plants from the first primitive land plants to the first representatives of gymnosperms. Flora is represented by hundreds of plant genera and species in many parts of the world. Information about the Devonian plants from Latvia is scarce. In the early 80-ies of the last century mass graves of fishes, as well as plant remains were discovered at the base of the supposedly Upper Devonian deposits cropping out in the Liepa (Lode) clay pit in the north-eastern part of Latvia (Kuršs and Lyarskaya 1973). In 1971-1972 one of us (A.L. Jurina) had opportunity to collect fossil plants in the Lode quarry by the invitation of L.A. -
The Lochkovian-Pragian Boundary in the Lower Devo~Ian of the Barrandian Area (Czechoslovakia)
©Geol. Bundesanstalt, Wien; download unter www.geologie.ac.at Jb. Geol. B.-A. ISSN 0016-7800 Band 128 Heft 1 S.9-41 Wien, Mai 1985 The Lochkovian-Pragian Boundary in the Lower Devo~ian of the Barrandian Area (Czechoslovakia) By Ivo CHLUpAC, PAVEL LUKES, FLORENTIN PARIS & HANS PETER SCHÖNLAUB*) With 17 figures, 1 table and 4 plates Tschechoslowakei Barrandium Karnische Alpen Devon Stratigraphische Korrelation Lochkov-Prag-Grenze Tentaculiten Conodonten Graptolithen Chitinozoa Trilobita Brachiopoda Contents Summary, Zusammenfassung . .. 9 1. Introduction..... .. 9 2. Description of sections 10 2.1. Cerna rokle near Kosoi' 10 2.2. Trebotov - Solopysky 13 2.3. Praha - Velka Chuchle (Pi'fdol f) 14 2.4. Cikanka quarry near Praha-Slivenec 17 2.5. Radolfn Valley - Hvizaalka quarry 19 2.6. Oujezdce quarry near Suchomasty 22 3. Stratigraphic significance of some fossil groups in the Lochkovian-Pragian boundary beds of the Barrandian 22 3.1. Dacryoconarid tentaculites (P. LUKES) 22 3.2. Conodonts (H. P. SCHÖNLAUB) 24 3.3. Chitinozoans (F. PARIS) 27 3.4. Graptolites 28 3.5. Trilobites 28 3.6. Brachiopods 29 3.6. Some other groups 29 4. Proposal for a conodont based Lochkovian-Pragian boundary 30 5. Conclusion 30 References 32 Zusammenfassung Summary Im Barrandium Böhmens wurde die Lochkov/Prag-Grenze Six selected sections of the Lochkovian-Pragian boundary des Unterdevons an 6 ausgewählten Profilen in Hinblick auf ih- beds in the Barrandian area of central Bohemia were subject- ren Makro- und Mikrofossilinhalt biostratigraphisch untersucht. ed to investigations of mega- and microfossils. Joint occur- Für Korrelationszwecke sind in erster Linie Dacryoconariden, rence of different stratigraphically important fossil groups, par- Conodonten, Chitinozoen, Trilobiten, Graptolithen und Bra- ticularly dacryoconarid tentaculites, conodonts, chitinozoans, chiopoden geeignet. -
Upper Devonian Plant Microfossils from Eastern and Arctic Canada: Their Taxonomy and Palaeoecological Significance
,{ ;" UPPER DEVONIAN PLANT MICROFOSSILS AND PALAEOECOLOGY UPPER DEVONIAN PLANT MICROFOSSILS FROM EASTERN AND ARCTIC CANADA: THEIR TAXONOMY AND PALAEOECOLOGICAL SIGNIFICANCE by WAYNE WILFRED BRIDEAUX, B.Sc. A Thesis Submitted to the Faculty of Graduate Studies in Partial Fulfillment of the Requirements for the degree Master of Science McMaster University May 1965 MASTER OF SCIENCE (1965) McMASTER UNIVERSITY (Biology) Hamilton, Ontario TITLE: Upper Devonian Plant Microfossils from Eastern and Arctic Canada: Their Taxonomy and Palaeoecological Significance AUTHOR: Wayne Wilfred Brideaux, B.Sc. (Carleton University) SUPERVISOR: Professor N. W. Radforth NUMBER OF PAGES: xii, 163. SCOPE AND CONTENTS: Plant microfossils are extracted from strata of Upper Devonian age occurring at two previously uninvestigated localities in Eastern Canada and in the Canadian Arctic. The extraction procedure includes a new permanent palynological mounting technique using corn syrup and Permount, a synthetic resin. In addition, a method of eliminating by-product in residues after hydrofluoric acid, is also described. A number of miospore and acritarch form species are described and figured; nine new form species of miospores are proposed. The miospore species recovered from both localities indicate a geological age of early Upper Devonian (Frasnian) for the enclosing strata. A new way of assessing qualitative, regional palaeofloristic changes is provided by tabulation of morphological characteristics of individual miospores. The use of miospore species in defining Upper Devonian microfloral provinces and Upper Devonian-Lower Carboniferous migration of parent forms is demonstrated. ii PREFACE Authors of earlier theses in the field of palynology have customarily included somewhat detailed resumes of the general history of palynology. As well, they have outlined the character istics of plant microfossils. -
Givetian Brachiopod Faunas of the Palentian Domain (N Spain)
GIVETIAN BRACHIOPODS PALENTIAN DOMAIN 43 GIVETIAN BRACHIOPOD FAUNAS OF THE PALENTIAN DOMAIN (N SPAIN) Jenaro L. GARCÍA-ALCALDE Departmento de Geología (Paleontología), Universidad de Oviedo, c/ Jesús Arias de Velasco, s/n, 33005 Oviedo, Asturias, Spain. email: [email protected] García-Alcalde, J.L. 2010. Givetian Brachiopod faunas of the Palentian Domain (N Spain). [Braquiópodos del Givetiense del Dominio Palentino (Norte de España).] Revista Española de Paleontología, 25 (1), 43-69, ISSN 0213-6937 ABSTRACT The origin, evolution, structural and stratigraphical features of the Palentian Domain (Cantabrian Mountains, N Spain) are summarily described. The boundaries of the Givetian succession (ca. 40 m thick) in that area are es- tablished from previously known conodont and ammonoid data. The base of the Givetian is situated in the up- per part of the Gustalapiedra Formation, at the base of the La Pedrosa Member. The upper Givetian boundary is situated at the top of the lower calcareous interval of the Cardaño Formation. Middle Devonian brachiopods are scarce in the Palentian Domain. In fact no Givetian form has been cited in the area until now. In this paper nine brachiopod species (three new) of the Givetian interval are described and figured: Skenidium cf. polonicum, Rhyssochonetes aff. douvillei, Prodavidsonia havliceki n. sp., Bifida aff. lepida, Ambothyris cf. infima, “Pyrami- dalia” palentina n. sp., Cingulodermis sotoana n. sp., Parastringocephalus cf. dorsalis, and Ense andrea. The genera Skenidium, Rhyssochonetes, Ambothyris, Cingulodermis, Parastringocephalus, and Ense are cited in Spain for the first time. Parastringocephalus is moreover the first stringocephaline found in Palencia. “Pyramidalia” palentina n. sp. is an impunctate form provided with a nearly complete symphytium, a delthyrial plate and short dental plates; these features separate the genus Pyramidalia both from Cyrtinaella and Thomasaria with which the former genus has sometimes been synonymised. -
Middle Devonian Acanthodians from Belarus – New Data and Interregional Biostratigraphy
Acta Geologica Polonica, Vol. XX (202X), No. X, pp. xxx–xxx DOI: 10.24425/agp.2020.134568 Middle Devonian acanthodians from Belarus – new data and interregional biostratigraphy DMITRY P. PLAX1 and MICHAEL NEWMAN2* 1 Belarusian National Technical University (BNTU), Nezavisimosti Avenue 65, 220013 Minsk, Republic of Belarus. 2 Vine Lodge, Vine Road, Johnston, Haverfordwest, SA62 3NZ Pembrokeshire, United Kingdom. Email: [email protected]. ORCID: 0000-0002-7465-3069 *Corresponding author ABSTRACT: Plax, D.P. and Newman, M. XXXX. Middle Devonian acanthodians from Belarus – new data and interregional biostratigraphy. Acta Geologica Polonica, XX (X), xxx–xxx. Warszawa. The Lower Devonian (Emsian) and Middle Devonian of Belarus contain assemblages of biostratigraphically useful faunal and floral microremains. Surface deposits are few, with most material being derived from bore- hole cores. Acanthodian scales are particularly numerous and comparison with scales from other regions of the Old Red Sandstone continent (Laurussia), specifically the Orcadian Basin of Scotland, the Baltic Region, Spitsbergen, and Severnaya Zemlya have demonstrated a lot of synonymy of acanthodian species between these areas. This is especially the case between Belarus, the Orcadian Basin and the Baltic Region, which has allowed us to produce an interregional biostratigraphic scheme, as well as to postulate marine connection routes between these areas. The acanthodian biostratigraphy of Belarus is particularly important as it is associated with spores and marine invertebrates, so giving the potential of more detailed correlations across not only the Old Red Sandstone continent, but elsewhere in the Devonian world. We also demonstrate that differences in preservation (e.g., wear and how articulated a specimen is) is one of the main reasons for synonymy. -
Jorunn Os Vigran Spores from Devonian Deposits
NORSK POLARINSTITUTT SKRIFTER NR. 132 JORUNN OS VIGRAN SPORES FROM DEVONIAN DEPOSITS, MIMERDALEN, SPITSBERGEN NORSK POLARINSTlTUTT OSLO 1964 DET KONGELIGE DEPARTEMENT FOR INDUSTRI OG HANDVERK NORSK POLARINSTITUTT Middelthuns gate 27 b, Oslo 3, Norway Short account of the publications of Norsk Polarinstitutt The two series, Norsk Polarinstitutt - SKRIFTER and Norsk Polarinstitutt - MEDDELELSER, were taken over from the institution Norges Svalbard- og Ishavs unders0kelser (NSIU), which was incorporated in Norsk Polarinstitutt when this was founded in 1948. A third series, Norsk Polarinstitutt - ARBOK, is published with one volume per year. SKRIFTER includes scientific papers, published in English, French or German. MEDDELELSER comprises shorter papers, often being reprints from other publi cations. They generally have a more popular form and are mostly published in Norwegian. SKRIFTER has previously been published under various titles: Nos. 1-11. Resultater av De norske statsunderstottede Spitsbergen-ekspe ditioner. No. 12. � Skrifter om Svalbard og Nordishavet. Nos. 13-81. Skrifter om Svalbard og Ishavet. 82-89. Norges Svalbard- og Ishavs-undersokelser. Skrifter. • 90- . Norsk Polarinstitutt Skrifter. In addition a special series is published: NORWEGIAN-BRITISH-SWEDISH ANTARCTIC EXPEDITION. 1949-52. SCIENTIFIC RESULTS. This series will comprise six volumes, four of which are now completed. Hydrographic and topographic surveys make an important part of the work carried out by Norsk Polarinstitutt. A list of the published charts and maps is printed 011 p. 3 and 4 of this cover. A complete list of publications, charts and maps is obtainable on request. ARB0KER Arbok 1960. 1962. Kr . 1S.00. Arbok 1961. 1962. Kr.24.00. Arbok 1962. 1963. Kr. -
Regional Devonian Workshop Prague & Graz
Berichte der Geologischen Bundesanstalt, ISSN 1017-8880, Band 79, Wien 2009 - 1 - Berichte der Geologischen Bundesanstalt Band 79 Regional Devonian Workshop Prague & Graz Prague, 25-27th May 2009 Organisation & Editorial: SUTTNER, BERKYOVÁ, HUBMANN, KOPTÍKOVÁ & SLAVÍK Impressum: Alle Rechte für das In- und Ausland vorbehalten. Copyright Geologische Bundesanstalt, Wien, Österreich. Medieninhaber, Herausgeber und Verleger: Geologische Bundesanstalt Wien A-1030 Wien, Neulinggasse 38, homepage: www.geologie.ac.at Cover: Fritz Messner; Druck: Riegelnik, Offsetschnelldruck, Piaristengasse 19, A-1080 Wien Ziel der „Berichte der Geologischen Bundesanstalt“ ist die Verbreitung wissenschaftlicher Ergebnisse durch die Geologische Bundesanstalt Die „Berichte der Geologischen Bundesanstalt“ sind im Handel nicht erhältlich, die einzelnen Beiträge sind auf der website der Geologischen Bundesanstalt frei verfügbar. - 2 - Regional Devonian Workshop, Prague & Graz; 25-27th May 2009, held in Prague Berichte der Geologischen Bundesanstalt, ISSN 1017-8880, Band 79, Wien 2009 - 3 - Preface During the last few years several projects relating to the Devonian Period were initiated. Some of them were completed in 2008 and others will come to an end this year. IGCP 497 and 499 projects concentrated on the Rheic Ocean: Its Origin, Evolution and Correlatives (organized by Peter Königshof, Ulf Linnemann, Rainer Brocke, Mandy Hofmann, Eberhard Schindler, Jens Ulrich & Volker Wilde) and on the Devonian land-sea interaction: evolution of ecosystems and climate (organized by Peter Königshof, Jurga Lazauskiene, Eberhard Schindler, Volker Wilde & M. Namik Yalçin). Recently a new project, IGCP 580, began. It concerns the application of magnetic susceptibility as a paleoclimatic proxy on Paleozoic sedimentary rocks and the characterization of the magnetic signal (organized by Anne-Christine da Silva, Michael T.