DOCSLIB.ORG

Supplementary Online Material For

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Supplementary Online Material For http://app.pan.pl/SOM/app60-Izumi_SOM.pdf SUPPLEMENTARY ONLINE MATERIAL FOR Composite Phymatoderma from Neogene deep-marine deposits in Japan: Implications for Phanerozoic benthic interactions between burrows and the trace-makers of Chondrites and Phycosiphon Kentaro Izumi Published in Acta Palaeontologica Polonica 2015 60 (4): 1009-1020. http://dx.doi.org/10.4202/app.00060.2014 Supplementary Online Material Table. Phanerozoic records of trace fossils (or modern traces) that were reworked by Chondrites and Phycosiphon. References Table. Phanerozoic records of trace fossils (or modern traces) that were reworked by Chondrites and Phycosiphon. Reworked by Chondrites Burrow diameter Formation or Lithology/Depositional Reworked trace Age of reworked Reference Note section/Locality setting fossil materials (mm) various modern various regions such sediments/deep-sea (water Modern as outer Bengal Fan Planolites 2-15 Wetzel 1991 depth greater than 500-1000 area m) Krishna-Godavari cold-seep pellet-filled bran- Mazumdar et Quaternary 4-17 basin/Bay of Bengal carbonate/continental slope ched burrows al. 2011 British Geological muds and sandy muds with Pliocene- diameter not described, but measured using Survey Borehole rare dropstones/anomalous, Planolites 11.43 Leslie 1993 Pleistocene fig. 9 88/7 /Hebrides Slope difficult to interpret alternations of tuffaceous Shiramazu Pliocene sandstones and Phymatoderma 8.30-30.95 Izumi in press Formation/Japan siltstones/continental slope mud, sand, lignite, and shell middle Pebas Gingras et al. bed/tidally-influenced, Planolites less than 2 Miocene Formation/Peru 2002 brackish water Helicodromites 2.6-3.2 (smaller) mobilis 5.4-9.8 (larger) sandy, muddy, and Chenque Carmona et early Miocene tuffaceous/tidal bars, subtidal Gyrolithes 45-65 Formation/Argentina al. 2008 bars, shoreface Teichichnus 10-12 zigzag Thalassinoides 17-76 Planolites 3-7 middle thin-bedded siliciclastic Heard et al. Ainsa Basin/Spain Eocene turbidites/deep-sea 2008 Thalassinoides 5-20 fine-grained siliciclastic, middle Scaglia Toscana Monaco et al. carbonate, and bioclastic Palaeophycus 10-20 Eocene Formation/Italy 2012 turbidites/deep-sea alternations of limestones, marly limestones and marls, Planolites 4-5 Rodríguez- Paleocene- Itzurun with intercalations of Tovar et al. Eocene Formation/Spain turbidite/between middle and 2011b lower bathyal environments, at about 1000 m water depth Zoophycos 3-4 marginal tunnel diameter Palaeophycus 20 or larger than tubularis form A 20 Palaeophycus less than 20 tubularis form B Planolites alternating limestones, ca. 5 calcareous turbidites, and montanus Giannetti and Zumaya late Paleocene siliceous sandstones/deep- Thalassinoides McCann section/Spain 5-15 marine at water depth of ca. suevicus 2010 1000 m Zoophycos diameter of the whole structure, not diameter 50-350 brianteus of marginal tube Zoophycos isp. not described form A Thalassinoides- interbedded biomicrite and Scaglia Cinerea Phycodes late Paleocene calcareous mudstone or 3-10 Miller 2001 unit/Italy compound marl/bathyal depth system marls and marly Rodríguez- Cretaceous/ Jorquera Thalassinoides 10-20 limestones/middle bathyal Tovar and Paleogene Formation/Spain at water depth 600-1000 m turbular burrow 10 Uchman 2006 Bidart hemipelagites and Planolites 2.5-4 Rodríguez- Cretaceous/ section/France turbidites/water depth ranging Tovar et al. Paleogene Sopelana 4-9 (smaller) from 1000 to 1500 m Thalassinoides 2011a section/Spain 15-30 (larger) cyclic chalk-marl succession/below storm wave late Rørdal Lauridsen et base with water depth of Thalassinoides 15-25 Maastrichtian Member/Denmark al. 2011 probably several hundreds meters late Dania probably Bromley and diameter not described, but measured using chalk/shallow-water chalk 7.25 Maastrichtian Quarry/Denmark Thalassinoides Ekdale 1984b fig. 5 Ekdale and late Dania diameter not described, and difficult to chalk/shelf-sea Thalassinoides - Bromley Maastrichtian Quarry/Denmark measure using a published figure 1991 Planolites carbonate-siliciclastic late beverleyensis ca. 5 Monte Antola flysch/deep-sea below the Campanian- morphotype B Uchman 2007 Formation/Italy calcite compensation depth Maastrichtian (CCD) ?Radhostium isp. 3-10 thin-bedded marlstones Campanian- interbedded with muddy to Ropianka Leszczyński early clayey shales and thin-bedded Planolites 1.5-5 Formation/Poland 2004 Maastrichtian sandstones/trough-type deep- sea basin Wyandot fine-grained calcareous Santonian- Phillips and Formation/offshore mudstone/outer shelf to upper Thalassinoides 12-40 Maastrichtian McIlroy 2010 Nova Scotia bathyal setting Cenomanian- Chalk unit/northen Bromley and chalk/not described Thalassinoides - diameter not described Maastrichtian Europe Ekdale 1984a early Province de Gyrolithes Bromley and smectite/not described ca. 1 diameter of burrow walls Campanian Liége/Belgium davreuxi Frey 1974 Piesenkopf- thin-bedded turbiditic flysch late Turonian- Planolites Schichten/Austria composed of sandstone- 3-8 Uchman 1999 late Santonian beverleyensis and Germany limestone;marlstone/deep-sea marlstone dominated/outer Kędzierski Turonian- Planolites 2-6 Opole region/Poland shelf (below storm wave and Uchman Coniasian base) Thalassinoides 12-25 2001 marly limestones and marls Rogríguez- Cenomanian- Capas Blancas with chert nodules and Thalassinoides 6-11 Tovar et al. Turonian Formation/Spain beds/moderately deep pelagic 2009 plateau Cenomanian- Rybie marl dominated/submarine Uchman et al. Planolites 2.5-4.5 Turonian section/Poland high 2013a cherty limestones intercalated with black shales, gray marly Cenomanian- Bonarelli shales and non-calcareous Uchman et al. Thalassinoides 7-18 Turonian Level/Poland shales/pelagic and 2013b hemipelagic, beyond tha range of gravitational flows middle limestones, separated by The Chalk Marl/UK Thalassinoides - Gale 1989 diameter not described Cenomanian marly shalk/not described Late Resspass/ ? (= it cannot be Uchman and calcareous turbidite/deep-sea ? Cretaceous Switzerland observed today) Wetzel 1999 alternations of breccia, Kotick Point Buatois and Aptian- conglomerates, sandstones Cladichnus Formation/Antarctic 2-5 Mángano Albian and mudstones/continental fischeri a 1992 slope interbedded calcareous Bouvières Gaillard and Hauterivian mudstone and Halimedides 0.5-2.5 section/France Olivero 2009 marlstone/deep-marine Unterpurkersdorf at ? (= not described, but measured using plate 3, Cretaceous not described/not described 6.09, 6.40 Fu 1991 Wien Bandchondriten) photos A-B massive to well-bedded Monaco and Calcari Grigi limestones and Ophiomorpha Pliensbachian 20-40 Garassino Formation/Italy marls/shallow-water irregularie 2001 carbpnate platform massive to well-bedded Monaco and Sinemurian/ Calcari Grigi limestones and Ophiomorpha 30-50 Giannetti Pliensbachian Formation/Italy marls/shallow-water, oceanic nodosa 2002 carbonate platform Simpson Sinemurian Bishopsworth/UK dark shale/not described Corophioides 7-8 U-tunnel diameter 1957 age and depositional setting of the studied succession (highest part of the Blue Lias Blue Lias and interbedded mudstones and Formation to the lowest part of the Charmouth Charmouth limestones with distinctive Gallois and ?Sinemurian Planolites 15 Mudstone Formation) are not describedBlue Mudstone marker beds/?shallow shelf Paul 2009 Lias Formation: Hettangian-Sinemurian Formations/UK environment Charmouth Mudstone Formation: Sinemurian- lower Pliensbachian rhythmically bedded black Moghadam Hettangian- Blue Lias shales and marls (sometimes Thalassinoides 10-40 and Paul Simenurian Formation/UK limestones)/shallow shelf 2000 paleoenvironment Bravaisberget and dark organic-rich Mørk and Middle Botneheia Forma- shale/deltaic to restricted Thalassinoides 10-50 Bromley Triassic tions/Svalbard shelf 2008 Early Oquirrh not described/controversial Ekdale and diameter not described, but measured using Pensilvanian- Spirophycus 3-5 Formation/US (shallow vs. deep) Mason 1988 fig. 2C and F Early Permian very fine-grained silty Early Morrow Buatois et al. diameter not described, but measured using sandstone and siltstone/distal Alenicorites ca. 1.5 Pensilvannian Sandstone/US 2002 fig. 8C lower-shoreface a few mm to a few Trypanites depositional setting from Li et al. 2001 Late Yeoman carbonate-evaporite cm Pak et al. Ordovician Formation/Canada cycles/marine shelf 2010 a few mm to a few Thalassinoides cm Reworked by Phycosiphon Burrow diameter Formation or Reworked trace Age Lithology/Depositional setting of reworked Reference Note section/Locality fossil materials (mm) diameter not described, but measured using Modern off NW Africa modern deposits/bathyal Planolites 11.25, 13.75 Wetzel 2010 Text-fig. 4-2 alternations of tuffaceous Shiramazu Pliocene sandstones and Phymatoderma 9.70-40.65 Izumi in press Formation/Japan siltstones/continental slope Chenque sandy, muddy, and Carmona et early Miocene Formation/ tuffaceous/tidal bars, subtidal Thalassinoides 17-76 al. 2008 Argentina bars, shoreface diameter not described, and difficult to Thalassinoides - measure using a published figure/reworked by Anconichnus Ekdale and late Dania diameter not described, and difficult to chalk/shalf-sea Bromley Maastrichtian Quarry/Denmark ?Thalassinoides - measure using a published figure/reworked by 1991 Anconichnus diameter of vertical shaft, but Anconichnus- Zoophycos 8 animal has meticulously avoided the shaft López de mudstones and sandstones, Olivero and Bertodano glauconite-rich sandstones and Euflabella Maastrichtian 8-15 Lopez final tube diameter Formation/
Load more

Recommended publications
  • Fullerton Arboretum Friday, April 22, 2016
    Department of Geological Sciences California State University, Fullerton Fullerton Arboretum Friday, April 22, 2016 The Department of Geological Sciences at California State University, Fullerton is an interdisciplinary education and research community whose members are active mentors and role-models. Our mission is to provide a student-centered educational and research experience that emphasizes critical thinking, communication, and scientific citizenship. ‘Research Day’ is an extension of this mission, where students are afforded the opportunity to share their research findings and scientific experiences with faculty, student peers, friends, family, and members of the professional geological community in an informal and supportive environment. Thank you for participating in this year’s event! 7th Annual Geology Research Day California State University, Fullerton ~ Department of Geological Sciences Fullerton Arboretum April 22, 2016 Abstract Volume Table of Contents Undergraduate Proposal Category EXAMINING THE GEOCHEMICAL RELATIONSHIPS BETWEEN THE TWENTYNINE PALMS AND QUEEN MOUNTAIN PLUTONS IN JOSHUA TREE NATIONAL PARK Student: Alexander Arita Faculty Advisor: Dr. Vali Memeti EXPLORING THE MOJAVE-SNOW LAKE FAULT HYPOTHESIS USING LASER- INDUCED BREAKDOWN SPECTROSCOPY Student: Eduardo Chavez Faculty Advisor: Dr. Vali Memeti INVESTIGATING SPATIAL AND TEMPORAL VARIATIONS IN SEDIMENTATION ON INTERTIDAL MUDFLATS Student: Dulce Cortez Faculty Advisor: Dr. Joseph Carlin A PALEOECOLOGY OF PLEISTOCENE OYSTER BEDS, SAN PEDRO, CALIFORNIA Student: Ditmar, Kutcher, Rue Faculty Advisor: Dr. Nicole Bonuso USING K-FELDSPAR MEGACRYSTS AS RECORDERS OF MAGMA PROCESSES IN THE TWENTYNINE PALMS PLUTON IN JOSHUA TREE NATIONAL PARK Student: Lizzeth Flores Urita Faculty Advisor: Dr. Vali Memeti ORGANIC AND INORGANIC CARBON ANALYSES OF SHALLOW SEDIMENTS AT OVERFLOW LAKE, SANTA BARBARA, CALIFORNIA. Student: Shayne Fontenot Faculty Advisor: Dr.
    [Show full text]
  • Albian Rudist Biostratigraphy (Bivalvia), Comanche Shelf to Shelf Margin, Texas
    Carnets Geol. 16 (21) Albian rudist biostratigraphy (Bivalvia), Comanche shelf to shelf margin, Texas Robert W. SCOTT 1, 2 2 Yulin WANG 2 Rachel HOJNACKI Yulin WANG 3 Xin LAI 4 Highlights • Barremian-Albian caprinids biostratigraphic zones are revised and integrated with ammonites and benthic foraminifers. • New caprinid rudist species are the key to revising long-held correlations of Albian strata on the Co- manche shelf, Texas. • On the San Marcos Arch, central Texas, the shallow shelf Person Formation is the upper unit of the Fredericksburg Group. • The Person underlies the basal Washita Group sequence boundary Al Sb Wa1 and the Georgetown Formation. Abstract: Rudists were widespread and locally abundant carbonate producers on the Early Cretaceous Comanche Shelf from Florida to Texas, and on Mexican atolls. As members of the Caribbean Biogeogra- phic Province, their early ancestors emigrated from the Mediterranean Province and subsequently evol- ved independently. Comanchean rudists formed biostromes and bioherms on the shelf interior and at the shelf margin. Carbonate stratigraphic units of the Comanche Shelf record rudist evolution during the Barremian through the Albian ages and an established zonal scheme is expanded. This study documents new Albian rudist occurrences from the Middle-Upper Albian Fredericksburg and Washita groups in Central and West Texas. Rudists in cores at and directly behind the shelf margin southeast of Austin and San Antonio, Texas, complement the rudist zonation that is integrated with ammonites and foraminifers. These new rudist data test long-held correlations of the Edwards Group with both the Fredericksburg and Washita groups based solely on lithologies. Rudist and foraminifer biostratigraphy indicate that the Edwards Group is coeval with the Fredericksburg not the Washita Group.
    [Show full text]
  • The Earliest Bioturbators As Ecosystem Engineers
    Downloaded from http://sp.lyellcollection.org/ by guest on September 27, 2021 Engineering the Cambrian explosion: the earliest bioturbators as ecosystem engineers LIAM G. HERRINGSHAW1,2*, RICHARD H. T. CALLOW1,3 & DUNCAN MCILROY1 1Department of Earth Sciences, Memorial University of Newfoundland, Prince Philip Drive, St John’s, NL, A1B 3X5, Canada 2Geology, School of Environmental Sciences, University of Hull, Cottingham Road, Hull HU6 7RX, UK 3Statoil ASA, Stavanger 4035, Norway *Correspondence: [email protected] Abstract: By applying modern biological criteria to trace fossil types and assessing burrow mor- phology, complexity, depth, potential burrow function and the likelihood of bioirrigation, we assign ecosystem engineering impact (EEI) values to the key ichnotaxa in the lowermost Cambrian (Fortunian). Surface traces such as Monomorphichnus have minimal impact on sediment properties and have very low EEI values; quasi-infaunal traces of organisms that were surficial modifiers or biodiffusors, such as Planolites, have moderate EEI values; and deeper infaunal, gallery biodiffu- sive or upward-conveying/downward-conveying traces, such as Teichichnus and Gyrolithes, have the highest EEI values. The key Cambrian ichnotaxon Treptichnus pedum has a moderate to high EEI value, depending on its functional interpretation. Most of the major functional groups of mod- ern bioturbators are found to have evolved during the earliest Cambrian, including burrow types that are highly likely to have been bioirrigated. In fine-grained (or microbially bound) sedimentary environments, trace-makers of bioirrigated burrows would have had a particularly significant impact, generating advective fluid flow within the sediment for the first time, in marked contrast with the otherwise diffusive porewater systems of the Proterozoic.
    [Show full text]
  • Norwegian Seaway: a Key Area for Understanding Late Jurassic to Early Cretaceous Paleoenvironments
    CORE Metadata, citation and similar papers at core.ac.uk Provided by OceanRep PALEOCEANOGRAPHY, VOL. 18, NO. 1, 1010, doi:10.1029/2001PA000625, 2003 The Greenland-Norwegian Seaway: A key area for understanding Late Jurassic to Early Cretaceous paleoenvironments Jo¨rg Mutterlose,1 Hans Brumsack,2 Sascha Flo¨gel,3 William Hay,3 Christian Klein,1 Uwe Langrock,4 Marcus Lipinski,2 Werner Ricken,5 Emanuel So¨ding,3 Ru¨diger Stein,4 and Oliver Swientek5 Received 22 January 2001; revised 24 April 2002; accepted 9 July 2002; published 26 February 2003. [1] The paleoclimatology and paleoceanology of the Late Jurassic and Early Cretaceous are of special interest because this was a time when large amounts of marine organic matter were deposited in sediments that have subsequently become petroleum source rocks. However, because of the lack of outcrops, most studies have concentrated on low latitudes, in particular the Tethys and the ‘‘Boreal Realm,’’ where information has been based largely on material from northwest Germany, the North Sea, and England. These areas were all south of 40°N latitude during the Late Jurassic and Early Cretaceous. We have studied sediment samples of Kimmeridgian (154 Ma) to Barremian (121 Ma) age from cores taken at sites offshore mid-Norway and in the Barents Sea that lay in a narrow seaway connecting the Tethys with the northern polar ocean. During the Late Jurassic-Early Cretaceous these sites had paleolatitudes of 42–67°N. The Late Jurassic-Early Cretaceous sequences at these sites reflect the global sea-level rise during the Volgian-Hauterivian and a climatic shift from warm humid conditions in Volgian times to arid cold climates in the early Hauterivian.
    [Show full text]
  • An Early Late Devonian Bone Bed-Pelagic Limestone Succession: the North Evans-Genundewa Limestone Story
    AN EARLY LATE DEVONIAN BONE BED-PELAGIC LIMESTONE SUCCESSION: THE NORTH EVANS-GENUNDEWA LIMESTONE STORY In memory of Daniel B. Sass (1919-2006) Gordon C. Baird, Dept of Geosciences, SUNY-Fredonia, Fredonia, NY 14063; William T. Kirchgasser, Dept. of Geology, SUNY-Potsdam, Potsdam, NY 13676; D. Jeffrey Over, Dept. of Geological Sciences, SUNY-Geneseo, Geneseo, NY 14454; Carlton E. Brett, Dept. of Geology, Univ. of Cincinnati, Cincinnati, OH 45221. INTRODUCTION The Genesee Group succession in western New York represents deposition in dysoxic to near­ anoxic settings in the subsiding Appalachian foreland basin (Fig. 1) that records a series of widespread sedimentary and biological events. We will focus on lower and medial Genesee divisions that record changes in the basin that range in age from latest Middle Devonian into the early Late Devonian. In particular, we are interested in the genesis of styliolinid (pelagic) limestone units and associated bone-conodont beds. This paper will examine the results of recent mapping and biostratigraphic work on a succession of units in the Genesee Group, ranging, in upward succession, from basal Geneseo black shale facies into the lower part of the West River Formation. We will also highlight the discovery of two mappable discontinuity­ related bone-conodont beds in the lower part of the Genesee succession. The most important part of this project is the study of the regional character and inferred genesis of the North Evans Limestone (a famous conodont-bone lag unit above a major discontinuity) as well as that of the Genundewa Formation, a distinctive layer of pelagic, styliolinid carbonate that overlies the North Evans.
    [Show full text]
  • 11. Trace Fossils in Deep Sea Drilling Project Leg 58 Cores A
    11. TRACE FOSSILS IN DEEP SEA DRILLING PROJECT LEG 58 CORES A. A. Ekdale, Department of Geology and Geophysics, University of Utah, Salt Lake City ABSTRACT Bioturbation is extensive in all the facies cored during DSDP Leg 58 in the Philippine Sea, and cores not disturbed by drilling contain several distinctive trace-fossil types. Terrigenous turbidites show lit- tle, if any, bioturbation in their lower sub-units, although the upper, fine-grained sub-units commonly contain burrowed horizons. Pelag- ic biogenic oozes contain a typically deep-sea trace-fossil assemblage dominated by Planolites, Zoophycos, and Chondrites. Pelagic brown clays contain an abundance of smeared and deformed bur- rows, suggesting deposition of low-strength sediment at or below the carbonate-compensation depth. INTRODUCTION abyssal depositional conditions (Bourne and Heezen, 1965; Heezen and Hollister, 1971; Hollister et al., 1975; Trace fossils are biogenic sedimentary structures, Ekdale and Berger, 1978; Kitchell et al., 1978). These such as animal tracks, trails, burrows, and borings. sediment-surface trails and related structures have been They are evidences of the presence and activities of an- observed as bedding-plane trace fossils in ancient deep- cient organisms; thus, they often provide important in- water deposits, particularly turbidites, exposed on land formation about the paleoecology of benthic creatures (Seilacher, 1962, 1967, 1974; Ksiazkiewicz, 1970; Kern, that may or may not be preserved as body fossils. More- 1978). However, continuous pelagic sedimentation, ac- over, trace fossils are always in situ (it is rarely possible companied by continuous biologic reworking of the sed- to transport a sedimentary structure), and so they are of iment, generally precludes the formation of bedding considerable utility in interpreting sedimentary facies.
    [Show full text]
  • The 1898 Field Season of CD Walcott
    Field work and fossils in southwestern Montana: the 1898 field season of C. D. Walcott Ellis L. Yochelson Research Associate, Department of Paleobiology, National Museum of Natural History, Washington, DC 20013-7012 G. Zieg Senior Geologist, Teck Cominco American Inc., East 15918 Euclid, Spokane, WA 99216 INTRODUCTION In 1879, Charles Doolittle Walcott (1850- 1927) (Yochelson, 1998) joined the new U. S. Geological Survey (USGS) and July 1, 1894, became the third director of the agency. Shortly before that time the USGS had several field parties starting to investigate mining dis- tricts in Montana and Idaho. There was no overall stratigraphic succession, nor clear cor- relation from one mining district to another. In 1895, Walcott took a first quick trip through the Belt Mountains. In the vicinity of Neihart, Montana, he collected Middle Cambrian fossils (Weed, 1900). These fossils established that Lower Cambrian rocks were absent from the area and thus the Belt strata (or Algonkian, as USGS Walcott called them) were pre-Cambrian in age The unhyphenated usage and the lack of capi- ABSTRACT talization of “formation” are relatively late de- velopments in stratigraphic nomenclature. The diary of Charles Doolittle Walcott pro- vides a brief daily account of his investigations For more than fifty years, Walcott used a small of Cambrian and Precambrian rocks, mainly in pocket diary and with his comments one can the Belt Mountains during one field season. trace his route and gain some notion of how These entries also give some notion of the tri- field work was conducted before the days of als of field work before the development of the rapid automobile transportation.
    [Show full text]
  • The Cambrian-Ordovician Siliciclastic Platform of the Balcarce Formation
    Geologica Acta: an international earth science journal ISSN: 1695-6133 [email protected] Universitat de Barcelona España Poiré, D.G.; Spalletti, L.A.; Del Valle, A. The Cambrian-Ordovician siliciclastic platform of the Balcarce Formation (Tandilia System, Argentina): Facies, trace fossils, palaeoenvironments and sequence stratigraphy Geologica Acta: an international earth science journal, vol. 1, núm. 1, 2003, pp. 41-60 Universitat de Barcelona Barcelona, España Available in: http://www.redalyc.org/articulo.oa?id=50510105 How to cite Complete issue Scientific Information System More information about this article Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Journal's homepage in redalyc.org Non-profit academic project, developed under the open access initiative Geologica Acta, Vol.1, Nº1, 2003, 41-60 Available online at www.geologica-acta.com The Cambrian-Ordovician siliciclastic platform of the Balcarce Formation (Tandilia System, Argentina): Facies, trace fossils, palaeoenvironments and sequence stratigraphy D.G. POIRÉ 1 L.A. SPALLETTI 1 and A. DEL VALLE 1 Centro de Investigaciones Geológicas. UNLP-CONICET calle 1 n° 644, 1900 La Plata, Argentina. E-mail: [email protected] ABSTRACT The Lower Palaeozoic sedimentary cover of the Tandilia (Balcarce Formation) is made up of thick quartz are- nite beds together with kaolinitic claystones and thin fine-grained conglomerates. The Balcarce Formation was formed in the nearshore and inner shelf environments of a tide-dominated and storm influenced open platform. It shows many features suggesting tidal sedimentation. Coarse-grained facies were formed by sand bar migra- tion and accretion. Heterolithic packages are interpreted as interbar (swale) deposits.
    [Show full text]
  • A Delayed Response of the Trace Fossil Community at the Cretaceous
    Geobios 48 (2015) 137–145 Available online at ScienceDirect www.sciencedirect.com Original article A delayed response of the trace fossil community at the Cretaceous-Paleogene boundary in the Bottaccione section, § Gubbio, Central Italy a, b c Paolo Monaco *, Francisco J. Rodrı´guez-Tovar , Alfred Uchman a Dipartimento di Fisica e Geologia, Universita` degli Studi di Perugia, via G. Pascoli snc, 06123 Perugia, Italy b Departamento de Estratigrafı´a y Paleontologı´a, Facultad de Ciencias, Universidad de Granada, 18002 Granada, Spain c Jagiellonian University, Institute of Geological Sciences, Oleandry Street 2a, 30-063 Krako´w, Poland A R T I C L E I N F O A B S T R A C T Article history: A bed-by-bed ichnological analysis at the classic Bottaccione section (Gubbio area, Italy), reveals an Received 11 June 2014 unusual response of ichnofauna to the environmental changes associated with the Cretaceous-Paleogene Accepted 3 February 2015 (K-Pg) boundary event. The trace fossil assemblage, consisting of Chondrites isp., Planolites isp., Available online 23 February 2015 Thalassinoides isp., Trichichnus isp., and Zoophycos isp., is similar to that registered during Cenomanian and Turonian times, showing persistence of the same community for a long time interval in deep-sea Keywords: carbonate deposits. Absence of significant changes through the K-Pg boundary confirms that the Ichnology extinction did not touch the ichnofauna. The decline of trace fossils occurs at 6 cm above the K-Pg Cretaceous-Paleogene boundary boundary, with the total absence of biogenic structures in a 3 cm-thick layer showing parallel Bottaccione Apennines laminations.
    [Show full text]
  • An Offshore Transgressive–Regressive Mudstone-Dominated Succession from the Sinemurian of Skåne, Sweden
    An offshore transgressive–regressive mudstone-dominated succession from the Sinemurian of Skåne, Sweden Nils Frandsen and Finn Surlyk A Sinemurian mudstone-dominated succession was exposed until recently in the Gantofta quarry in Skåne, southern Sweden. The deposits are placed in the Döshult and Pankarp Members of the Sinemurian–Aalenian Rya Formation. Similar facies of the same age are widespread in the Danish Basin where they constitute the F-Ib unit (F-I member) of the Fjerritslev Formation. The Gantofta succession thus represents the easternmost extension of the environment characteris- tic of the Fjerritslev Formation and is essentially the only locality where it has been possible to study the facies of this formation in outcrop. Sedimentation seems to have taken place under rel- atively quiet tectonic conditions except for the possible fault-control of the basin margin. The lower part of the Gantofta section is of Early and early Late Sinemurian age. It represents the upper part of the Döshult Member and consists of muddy, lower shoreface sandstones, abruptly overlain by dark, bioturbated, fossiliferous mudstones with thin storm siltstones and sandstones. They are overlain by the Upper Sinemurian Pankarp Member which comprises red-brown, restricted marine calcareous mudstones with an upwards increasing number of storm siltstones and sandstones reflecting general shallowing and shoreline progradation. The succession spans the greater part of two simple sequences with a distal sequence bound- ary located at the boundary between the Döshult Member and the Pankarp Member. The exposed part of the lower sequence includes a thick transgressive systems tract and a very thin highstand systems tract.
    [Show full text]
  • Trace Fossil Assemblages in a Middle Triassic Mixed Siliciclastic- Carbonate Marginal Marine Depositional System, British Columbia
    Palaeogeography, Palaeoclimatology, Palaeoecology 166 (2001) 249–276 www.elsevier.nl/locate/palaeo Trace fossil assemblages in a Middle Triassic mixed siliciclastic- carbonate marginal marine depositional system, British Columbia J.-P. Zonnevelda,c,*, M.K. Gingrasb,c, S.G. Pembertonc aGeological Survey of Canada (Calgary), 3303, 33rd Street N.W., Calgary, Alta., Canada T2L 2A7 bDepartment of Geology, University of New Brunswick, Fredericton, NB, Canada E3B 5A3 cIchnology Research Group, Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, Alta., Canada T6G 2E3 Received 20 July 1999; accepted for publication 1 August 2000 Abstract A diverse ichnofossil assemblage characterizes the mixed siliciclastic-carbonate marginal marine succession of the upper Liard Formation (Middle Triassic), Williston Lake, northeastern British Columbia. Sedimentary facies within this succession consist of five recurring facies associations: FA1 (upper shoreface/foreshore); FA2 (washover fan/lagoon); FA3 (intertidal flat); FA4 (supratidal sabkha) and FA5 (aeolian dune). Shoreface/foreshore sediments (FA1) accumulated on a storm-dominated, prograding barrier island coast and are characterized by a low-diversity Skolithos assemblage (Diplocraterion, Ophiomorpha, Palaeophycus, Planolites, Skolithos and Thalassinoides). Washover fan/lagoonal sediments (FA2) are dominated by trophic generalists. (Cylindrichnus, Gyrochorte, Palaeophycus, Planolites, Skolithos, Trichichnus and an unusual type of bivalve resting trace), consistent with deposition in a setting subject to periodic salinity and oxygenation stresses. Intertidal flat deposits (FA3) are characterized by a diverse mixture of dwelling, feeding, and crawling forms (Arenicolites, Cylindrichnus, Diplo- craterion, Laevicyclus, Lingulichnus, Lockeia, Palaeophycus, Planolites, Rhizocorallium, Siphonichnus, Skolithos, Teichich- nus, Taenidium, and Thalassinoides, reflecting the presence of adequate food resources in both the substrate and in the water column.
    [Show full text]
  • Geological Survey of Denmark and Greenland Bulletin 1, 145-216
    DENMARK, SOUTHERN SWEDEN AND THE NETHERLANDS Previous page: Jurassic sediments exposed in a clay-pit at Bagå on Bornholm, Denmark – see Michelsen et al. (2003, this volume). Photo: Peter K. Warna-Moors. Jurassic lithostratigraphy and stratigraphic development onshore and offshore Denmark Olaf Michelsen, Lars H. Nielsen, Peter N. Johannessen, Jan Andsbjerg and Finn Surlyk A complete updated and revised lithostratigraphic scheme for the Jurassic succession of the onshore and offshore Danish areas is presented together with an overview of the geological evo- lution. The lithostratigraphies of Bornholm, the Danish Basin and the Danish Central Graben are described in ascending order, and a number of new units are defined. On Bornholm, the Lower–Middle Jurassic coal-bearing clays and sands that overlie the Lower Pliensbachian Hasle Formation are referred to the new Sorthat Formation (Lower Jurassic) and the revised Bagå Formation (Middle Jurassic). In the southern Danish Central Graben, the Middle Jurassic succession formerly referred to the Lower Graben Sand Formation is now included in the revised Bryne Formation. The Lulu Formation is erected to include the uppermost part of the Middle Jurassic succession, previously referred to the Bryne Formation in the northern Danish Central Graben. The Upper Jurassic Heno Formation is subdivided into two new members, the Gert Member (lower) and the Ravn Member (upper). The organic-rich part of the upper Farsund Formation, the for- mer informal ‘hot unit’, is established formally as the Bo Member. Dominantly shallow marine and paralic deposition in the Late Triassic was succeeded by wide- spread deposition of offshore marine clays in the Early Jurassic.
    [Show full text]