Middle Jurassic Stratigraphy in the Southwestern Part of the Republic of Tatarstan V

Total Page:16

File Type:pdf, Size:1020Kb

Middle Jurassic Stratigraphy in the Southwestern Part of the Republic of Tatarstan V ISSN 08695938, Stratigraphy and Geological Correlation, 2014, Vol. 22, No. 1, pp. 28–43. © Pleiades Publishing, Ltd., 2014. Original Russian Text © V.V. Mitta, V.V. Kostyleva, L.A. Glinskikh, B.N. Shurygin, I.A. Starodubtseva, 2014, published in Stratigrafiya. Geologicheskaya Korrelyatsiya, 2014, Vol. 22, No. 1, pp. 31–46. Middle Jurassic Stratigraphy in the Southwestern Part of the Republic of Tatarstan V. V. Mittaa, V. V. Kostylevab, L. A. Glinskikhc, B. N. Shuryginc, and I. A. Starodubtsevad aBorisyak Paleontological Institute, Russian Academy of Sciences, Moscow, Russia email: [email protected] bGeological Institute, Russian Academy of Sciences, Moscow, Russia cTrofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia dVernadsky State Geological Museum, Russian Academy of Sciences, Moscow, Russia Received June 18, 2012; in final form, April 17, 2013 Abstract—Data on the structure of the Middle Jurassic marine deposits in the vicinity of Ulyanovsk (sections of the Tarkhanovskaya Pristan–Dolinovka profile) are generalized with due regard for ammonites, bivalves, and microfossils occurring in sediments. Outcrops of the Tarkhanovskaya Pristan site represent the northern most Bajocian section of the Russian Platform, where ammonites of Tethyan origin are identified. As is estab lished, the preCallovian sandclay sequence formerly attributed to the Bathonian includes the Garantiana beds of the upper Bajocian in its middle part. The multidisciplinary biostratigraphicsedimentological research showed that downwarping of the Ulyanovsk–Saratov basin and origin of the Simbirsk Bay of the Tethyan marginal sea commenced in the Bajocian Age. The identified fossils of the upper Bajocian and lower and upper Callovian are cited in paleontological plates of this work. Keywords: Ulyanovsk area of the Volga region, ammonites, bivalves, foraminifers, ostracodes, Bajocian, Call ovian, stratigraphy, sedimentology DOI: 10.1134/S0869593814010043 INTRODUCTION Trofimuk Institute of Petroleum Geology and Geo physics (IPGG). The investigative history of Mesozoic deposits exposed along the right bank of the Volga River upstream of Ulyanovsk (Simbirsk) is long. The Upper INVESTIGATIVE HISTORY Jurassic and Lower Cretaceous sediments exposed 25 km upstream of Ulyanovsk in Ulyanovsk oblast First data on Jurassic deposits that rest on the (lectostratotype of the Volgian Stage) were of primary “variegated marl stage” (the Permian in current understanding) near the village of Tetyushi, on the interest to researchers. The Middle Jurassic rocks are right bank of the Volga River, appeared in publications exposed further upstream at the same riverbank, flank by Golovkinskii (1869), Laguzen (1874), Sintsov ing at present the Kuybyshev Reservoir (Republic of (1872), and Shtukenberg (1882). These researchers Tatarstan). Their outcrops extending from the Tarkh described deposits southward of the village of Doli anovskaya Pristan site to the abandoned settlement of novka in very general terms, however. Actually, we Dolinovka (Fig. 1) and being a continuation of the should honor A.P.Pavlov for the discovery and first above set of outcrops have been studied to a lesser comprehensive description of Middle Jurassic deposits extent, although the respective area appears to be in the Ulyanovsk area of the Volga region (Pavlov, unique in the Middle Volga region. Natural outcrops 1883, 1884). Later, Rosanov (1919), who also studied of this area exhibit the succession of Middle Jurassic outcrops near that village, confirmed the observations marine sediments overlying the erosion surface of the of Pavlov. The subsequent work by Zonov (1939) Permian variegated clays and limestones and yielding described outcrops of the Middle Jurassic rocks diverse fossils of the upper Bajocian and lower–upper exposed along the Kilna River and its tributaries. Callovian. After a long break in investigations, the upper Call Original paleontological remains listed and ovian marls containing ferruginous ooliths and ammo depicted in this work are stored in two depositories: nites Quenstedtoceras, Euaspidoceras, Kosmoceras, ammonites and bivalves at the Borisyak Paleontologi and others were described for the first time at the cal Institute (PIN); foraminifers and ostracodes at the Tarkhanovskaya Pristan site (Mitta, 2001, 2003). In 28 MIDDLE JURASSIC STRATIGRAPHY IN THE SOUTHWESTERN PART 29 48°15′ 48°30′ 48°45′ E Tetyushi N 55° 55° N Kilna R. Dolinovka R ga . en R d a e Tarkhanovskaya g B a iy Pristan site v 54° 54° S 40′ 40′ Undory Kuybyshev Reservoir 54° 54° 30′ 30′ Isheevka Cherdakly 54° 54° 20′ 20′ Oktyabr’skii Ulyanovsk 01020 km 48°15′ 48°30′ 48°45′ Fig. 1. Geographic localities of the studied sections. southwestern Tatarstan, the preCallovian part of the results obtained and additional data on found bivalves Jurassic sedimentary succession (Laishevo Sequence) (determinations by B.N. Shurygin), foraminifers, and was attributed to the Bathonian on the basis of exami ostracodes (determinations by L.A. Glinskikh) are nation of palynological assemblages macerated from summarized and interpreted. the rocks (Didenko and Zorina, 2003; Zorina, 2007). In 2010 and 2011, Mitta, Kostyleva, and Staro dubtseva resumed their field examinations of Middle DESCRIPTION OF SECTIONS Jurassic deposits within the Dolinovka–Tarkha The Middle Jurassic deposits are exposed on the novskaya Pristan area and presented preliminary coastal slope almost everywhere beginning from a results at several scientific conferences (Mitta, 2010; ravine mouth near the abandoned village of Dolinovka Kostyleva and Mitta, 2011; Kostyleva, 2011; Mitta et al., to the Tarkhanovskaya Pristan site. Their beds dip 2011; Mitta and Ditl’, 2012). In this work, all the southwestward (toward the village of Memei) under STRATIGRAPHY AND GEOLOGICAL CORRELATION Vol. 22 No. 1 2014 30 MITTA et al. the Upper Jurassic clays. In places, the rocks are con Upper Bajocian cealed under taluses and this is an obstacle for corre Member II (Beds 4, 4a, 4b) is recognizable in all lating the beds and measuring their thickness. The var parts of the coastal slope, being though of variable iegated sequence of the Upper Permian is composed completeness. Its apparent thickness ranges from 9 to of alternating clay beds pale green to crimson red in 14 m. Contact with Member I was not observed. coloration, intercalated with interlayers of pale yellow marl and interbeds of calcareous conglomerates and 4. Chloritesmectitekaolinitehydromica clays, graywacke sandstones. The erosion surface of these gray, silty, noncalcareous, with fine crosslamination rocks is overlain with a stratigraphic hiatus by a sand and horizontal and lenticular undulating bedding that siltclay sequence of the Middle Jurassic that is is underlined by accumulations of yellowish gray silty divided into four members. The three lower members material and diagenetic marcasite segregations. of siliciclastic sediments correspond to the preCall Higher in the bed, clays comprise intercalations of ovian part of the sequence. The fourth member of the pale gray, slightly clayey quartz silt. Silt intercalations upper Callovian marls is separated from underlying include admixture of goethite, jarosite, and rare mar casite. The intercalations range in thickness from sediments by a hiatus of eluvial erosion type. Along the 0.1 to 2.0 m. Large (up to 2 m across) loafshaped con sloped bank, the succession of outcrops is divided into cretions of welllithified calcareous feldsparquartz the eastern (sections 1–6), central (sections 7–9), and siltstone observable in Section 4 as associated in places western (sections 10, 11) parts, differing from each with the above intercalations slide downslope, when other in structure and completeness of the sections. weathered, to the bank edge. Ripple marks, predomi Description of the Middle Jurassic beds is presented nantly cellular ones, which were produced by waves of below (Figs. 2, 3). variably oriented water flows, are observable on the upper surface of these concretions. Apparent thick ness of the bed is 3 to 10 m. ? Lower Bajocian 4a–b. Smectitekaolinitehydromica clays, dark Member I (beds 1–3): rocks of the member are brownish gray, silty, noncalcareous, with minor admix exposed in eastern sections of the Tarkhanovskaya ture of fine coaly detritus and chlorite sometimes; in Pristan site and near Dolinovka (sections 1, 3). Its pre places, the rocks reveal fine horizontal or horizontally sumable age is determined on the basis of the position undulating lamination that is detectable owing to yel of the rocks in the succession. The apparent thickness lowish gray coloration of silt laminae and occurrence of of the member is not greater than 6.5 m. The beds gypsum crystals on bedding planes. In the lower third of described below are numbered from the base upward: the unit, there are thin (not thicker than 0.04 m) inter layers of yellowish gray silt. Clays seemingly form the 1. Quartz graywacke sands, coarse to medium lensshaped bodies 2 to 6 m thick inside the claysilt grained and mediumgrained, grayish olive green matrix of Bed 4, which wedge out in all directions (“snuffcolored”), variably compact, slightly argilla (Fig. 2, sections 2, 7–9, and beds 4a, 4b). ceous, displaying cross or wedgeshaped gentle bed In central section 8, an interlayer interruptive along ding that is variably oriented and grades upward into the strike and confined to the top of Bed 4b comprises vague troughshaped bedding. Sediments comprise segregations
Recommended publications
  • Systematics of the Middle Jurassic Heteromorphic Ammonites
    UDC 564. 53 . 01 SYSTEMATICS OF THE MIDDLE JURASSIC HETEROMORPHIC AMMONITES N. V. Besnosov and V. V. Kutuzova All-Union Scientific Research Petroleum Geologic Exploration Institute (VSEGEI) ABSTRACT: The stratigraphic distribution, phylogenetic relationships, and systema­ tics of the Middle Jurassic heteromorphic ammonites and their relationship to the monomorphic ammonites are considered. Sulcohamitoides gen. nov. and Ga�antiana as­ a�jani sp. nov. are described. * * * The vast majority of Middle Jurassic heteromorphic ammonites are shells with a spiral developing early in one plane, all the way to the formation of a straight tube in the outer part of the phragmocone and in the living chamber. They are also characterized by reduction of the U and I lobes in ontogenesis, manifested to a greater or lesser degree, and by only slight dissection of their lobes and saddles. The following generic names of the Jurassic heteromorphs are given in the lite­ rature. A�cuce�as Potonie, 1929, for which the family Arcuceratidae Arkell, 1950 has been proposed. This genus is based on a single species, A. ma�thae Potonie, from the Pliensbachian of Germany, the only specimen of which has been lost. Repeated searches at the type locality have been unsuccessful. It has been suggested that the dating is erroneous, or that the species and genus are based not on a heteromor­ phic ammonite, but on acrinoid stem. Apso��oce�as Hyatt, 1900, occurs in the lower half of the subfu�catum zone of the Upper-Bajocian and has usually been combined with Spi�oce�as Quenstedt, 1858, from which it differs in its less reduced U and I lobes and its finer sculpture.
    [Show full text]
  • "Subfurcaten-Schichten" (Bajocium, Niortense-Zone) in Nordwestdeutschland
    Osnabrücker naturwiss. Mitt. 5Abb.,4Taf. Osnabrück, Dez. 1992 Die Faunenhorizonte der "Subfurcaten-Schichten" (Bajocium, Niortense-Zone) in Nordwestdeutschland mit5 Abbildungen und 4 Tafeln Matthias Metz' Kurzfassung: Aufgrund neuer Aufschlüsse der "Subfurcaten-Schichten" (Bajocium, Niortense- Zone) in Nordwestdeutschland ist es möglich, die Schichtenfolge in Ammonitenfaunen-Horizonte zu untergliedern. Eine paläontologische Revision der Ammonitengattung Strenoceras HYATTmit den Untergattungen Strenoceras HYATT(m) und Garantiana HYATT(M) wird durchgeführt. [The faunal horizons of the "Subfurcaten-Schichten" (Bajocian, Niortense-Zone) in Northwest Germany) Abstract: Because of new exposures in the "Subfurcaten-Schichten" (Bajocian, Niortense- Zone) in Northwest Germany it is possible to subdivide the sequence in ammonite faunal hori- zons. A palaeontological revision of the genus Strenoceras HYATTwith the subgenus Strenoceras HYATT(m) and Garantiana HYATT(M) is executed. 1 Einleitung und historischer Überblick U Die ersten Hinweise auf die .Bifurcaten-Schichten" (= "Subfurcaten-Schichten ) fin- den sich bereits in den Veröffentlichungen von TRENKNER(1872; 1877) und POELMANN (1912) über die Juravorkommen in Osnabrück-Hellern. Im Wiehengebirge konnten LOHMANN(1909) bei Bad Essen und v. SEE (1910) an der Porta Westfalica die Schich- ten ebenfalls nachweisen. Der Begriff "Schichten oder Zone der Parkinsonia subturcete" wurde erstmals von SCHROEDER(1905) verwendet, der zahlreiche Vorkommen in Nordwestdeutschland beschrieb. Die paläontologische Erforschung ihrer Ammonitenfauna wurde von MAscKE (1907) und BENTZ (1924) mit dem aus dem Brauneisenoolith-Bergbau von Lindenbruch und Harlingerode (Harz-Vorland) gewonnenen Ammonitenmaterial begonnen. Demgegenüber sind die "Subfurcaten-SchichtenU im Bereich des Teuto- burger Waldes in toniger Fazies ausgebildet. Die wichtigsten Aufschlüsse waren die Tongruben von Bielefeld-Bethel (heute verfüllt). ALTHoFF (1914; 1922; 1928; 1938) veröffentlichte zahlreiche Profilaufnahmen.
    [Show full text]
  • Ammonites and Stratigraphy of the Upper Bajocian Garantiana Garantiana Zone in the Interfluve Between the Kuban and Urup Rivers (Northern Caucasus) V
    ISSN 0031-0301, Paleontological Journal, 2019, Vol. 53, No. 11, pp. 1188–1202. © Pleiades Publishing, Ltd., 2019. Ammonites and Stratigraphy of the Upper Bajocian Garantiana garantiana Zone in the Interfluve between the Kuban and Urup Rivers (Northern Caucasus) V. V. Mittaa, b, * aBorissiak Paleontological Institute, Russian Academy of Sciences, Moscow, 117647 Russia bCherepovets State University, Cherepovets, 162600 Russia *e-mail: [email protected] Received March 12, 2019; revised March 29, 2019; accepted April 1, 2019 Abstract—This paper presents the results of the study of the Upper Bajocian Garantiana garantiana Zone (Middle Jurassic) and characteristic ammonites in sections of the basin of the Kuban River (Karachay-Cher- kessia). The assemblage contains species of the genera Garantiana, Pseudogarantiana, Paragarantiana, Djanaliparkinsonia (all family Stephanoceratidae) and Vermisphinctes (family Perisphinctidae). A section of the Garantiana Zone on the Kyafar River contains (from bottom to top) Beds with Djanaliparkinsonia alanica (also recognized on the Kuban River), Beds with Garantiana subgaranti and Beds with Paragarantiana, approximately corresponding to the Dichotoma, Garantiana, and Tetragona subzones of the standard scale. Garantiana subgaranti Wetzel and Vermisphinctes martiusii (d’Orbigny) are described. Prorsisphinctes Buck- man, 1921 is proposed as a junior subjective synonym of Vermisphinctes Buckman, 1920. Keywords: Upper Bajocian, ammonites, Garantiana, Paragarantiana, Djanaliparkinsonia, Vermisphinctes, biostratigraphy, Northern Caucasus DOI: 10.1134/S0031030119110066 INTRODUCTION lished records of representatives of Garantianinae in the Garantiana Zone in the Northern Caucasus The Garantiana garantiana Zone is located (Ob”yasnitelnaya…, 1973; Yura…, 1992) are not sup- between the Upper Bajocian Strenoceras niortense and ported by figures or collections, and are mostly based Parkinsonia parkinsoni zones of the standard scale and on field identifications.
    [Show full text]
  • Indici Bollettini Mrsn 1-37
    INDICI BOLLETTINI MRSN 1-37 VOL. 1 (1983) Elachistidi del Giappone (Lepidoptera, Elachistidae) / Umberto Parenti. – P. 1-20 Il genere Aptinus Bonelli, 1810 (Coleoptera, Carabidae) / Achille Casale, Augusto Vigna Taglianti.. – P. 21- 58 Amphionthophagus , nuovo sottogenere di Onthophagus Latr. (Coleoptera, Scarabaeidae) / Fermín Martin Piera, Mario Zunino. – P. 59-76 I Dryinidae della collezione di Massimiliano Spinola: scoperta del materiale tipico di Anteon jurineanum Latreille, cambiamento di status sistematico per il genere Prenanteon Kieffer e descrizione di una nuova specie, Gonatopus spinolai (Hymenoptera, Dryinidae) / Massimo Olmi. – P. 77-86 Colpotrochia giachinoi n. sp., un nuovo Metopiinae (Hymenoptera, Ichneumonidae) del Nord Africa / Pier Luigi Scaramozzino. – P. 87-92 Osservazioni su alcune specie del genere Hinia Leach (in Gray), 1857 (Nassariidae) / Maria Pia Bernasconi. – P. 93-120 Un nuovo Trechus d’Algeria (Coleoptera, Carabidae) / Achille Casale. – P. 121-126 Dasypolia calabrolucana Hartig bona sp. (Lep. Noctuidae) / Emilio Berio. – P. 127-130 Raymondiellus casalei , nuova specie di Curculionide dell’Algeria (Coleoptera) / Massimo Meregalli. – P. 131-136 Popolamenti e tanatocenosi a molluschi dei fanghi terrigeni costieri al largo di Brucoli (Siracusa) / Italo Di Geronimo, Salvatore Giacobbe. – P. 137-164 Composición sistemática y orígen biogeográfico de la fauna ibérica de Onthophagini (Coleoptera, Scarabaeoidea) / Fermín Martin Piera. – P. 165-200 New data on Orthogarantiana (Torrensia) Sturani, 1971 (Ammonitina, Stephanocerataceae) in the European Upper Bajocian / Giulio Pavia. – P. 201-214 “Faunae Ligusticae Fragmenta” e “Insectorum Liguriae species novae” di Massimiliano Spinola: note bibliografiche / Pietro Passerin d’Entrèves. – P. 215-226 Notes on some Borelli’s types of Dermaptera (Insecta) / Gyanendra Kumar Srivastana. – P. 227-242 Nuovi Carabidae e Catopidae endogei e cavernicoli dei Balcani meridionali e dell’Asia minore (Coleoptera) / Achille Casale.
    [Show full text]
  • Dimorphinites (Ammonoidea, Jurassic, Upper Bajocian) in the Precordillera of Northern Chile
    DIMORPHINITES (AMMONOIDEA, JURASSIC, UPPER BAJOCIAN) IN THE PRECORDILLERA OF NORTHERN CHILE SIXTO R. FERNA´ NDEZ-LO´ PEZ1 AND GUILLERMO B. CHONG DIAZ2 1Departamento de Paleontologı´a, Facultad de Ciencias Geolo´gicas (UCM) and Instituto de Geologı´a Econo´mica (CSIC-UCM), Madrid 28040, Spain, ,[email protected].; and 2Departamento de Ciencias Geolo´gicas, Universidad Cato´lica del Norte, Antofagasta, Chile, ,[email protected]. This pdf file is licensed for distribution in the form of electronic reprints and by way of personal or institu- tional websites authorized by the author(s). A copyright license has been purchased to make this possible. Journal of Paleontology, 85(3), 2011, p. 395–405 Copyright ’ 2011, The Paleontological Society 0022-3360/11/0085-0395$03.00 DIMORPHINITES (AMMONOIDEA, JURASSIC, UPPER BAJOCIAN) IN THE PRECORDILLERA OF NORTHERN CHILE SIXTO R. FERNA´ NDEZ-LO´ PEZ1 AND GUILLERMO B. CHONG DIAZ2 1Departamento de Paleontologı´a, Facultad de Ciencias Geolo´gicas (UCM) and Instituto de Geologı´a Econo´mica (CSIC-UCM), Madrid 28040, Spain, ,[email protected].; and 2Departamento de Ciencias Geolo´gicas, Universidad Cato´lica del Norte, Antofagasta, Chile, ,[email protected]. ABSTRACT—A new upper Bajocian ammonite assemblage containing the morphoceratids Dimorphinites dimorphus (d’Orbigny) and Vigoriceras defrancei (d’Orbigny) is reported from the circum-Pacific area. These ammonites were found at the top of the Torcazas Formation, in the Quebrada San Pedro area, Precordillera of northern Chile. Taphonomic, systematic, and paleobiogeographic data confirm these dimorphs were part of indigenous populations within the Tarapaca Basin, belonging to the same demic biospecies: Dimorphinites defrancei (d’Orbigny).
    [Show full text]
  • Middle Jurassic, Bajocian, Bathonian, Ammonitina, Biostratigraphy, Biochronology, Andes, South-America, Chile
    FERNANDEZ-LOPEZ S., CHONG G., QUINZIO L.A. & WILKE H.G. 1994. The Upper Bajocian and Bathonian in the Cordillera de Domeyko, North-Chilean Precordillera : sedimentological and biostratigraphical results. [Le Ba­ jocien superieur et le Bathonien de la CordiIIere de Domeyko, PrecordilIere Nord-Chilienne : resultats sedimento­ logiques et biostratigraphiquesl. ABSTRACT The Jurassic ammonites of the CordiIIera de Domeyko have been studied in several monographies. The classic memoirs of Steinmann (1881), Tornquist (1898), Burckhardt (1903) and Stehn (1923) are particularly relevant. However, the biostratigraphic problems concerning stage boundaries arisen only in recent dates. New sedimentolo­ gical and biostratigraphical data have been obtained in relation to the BajocianlBathonian of this region. Several sections have been studied in two separate areas : Caracoles and Sierra de Varas. More than one thousand ammonites were collected in situ from these localities. Facies analysis shows that sedimentation during Late Bajocian and Bathonian occurs in a marine environment on a carbonate platform with abundant siliciclastic supply. Facies distribution was controlled by structural segmentation of the platform and processes of differential subsidence. The stratigraphical-sedimentological results together with taphonomical-palaeoecological observations are a diagnostic tool for sequence analysis. The successive ammonite assemblages which were found have allowed the establishment of four biostratigraphic units, spanning the interval from Upper Bajocian to Upper Bathonian. The sedimentological and biostratigraphical results indicate the existence of a regional discontinuity at the base of the Bathonian. KEY-WORDS: MIDDLE JURASSIC, BAJOCIAN, BATHONIAN, AMMONITINA, BIOSTRATIGRAPHY, BIOCHRONOLOGY, ANDES, SOUTH-AMERICA, CHILE. RESUME Les ammonites du Jurassique de la CordiIIere de Domeyko ont ete traitees dans plusieurs monographies, parmi lesqueIIes les memoires classiques de Steinmann (1881), Tornquist (1898), Burckhardt (1903) et Stehn (1923) sont particulierement importants.
    [Show full text]
  • The Base of the Zigzag Zone in the Ravin Du Bès Section (Bas-Auran, Subalpine Basin, SE France) As the GSSP for the Base of the Bathonian Stage
    ISJS BATHONIAN BALLOT 2007-2008 1 The base of the Zigzag Zone in the Ravin du Bès Section (Bas-Auran, Subalpine Basin, SE France) as the GSSP for the base of the Bathonian Stage SIXTO R. FERNÁNDEZ-LÓPEZ, GIULIO PAVIA, ELISABETTA ERBA, MYETTE GUIOMAR, MARIA H. HENRIQUES, ROBERTO LANZA, CHARLES MANGOLD, NICOL MORTON, DAVIDE OLIVERO AND DANIELE TIRABOSCHI Fernández-López, S.R., Pavia, G., Erba, E., Guiomar, M., Henriques, M.H., Lanza, R., Mangold, C., Morton, N., Olivero, D. & Tiraboschi, D. 2007: The base of the Zigzag Zone in the Ravin du Bès Section (Bas-Auran, Subalpine Basin, SE France) as the GSSP for the base of the Bathonian Stage. International Subcommission on Jurassic Stratigraphy, Bathonian Ballot 2007-2008. 44 pp. Sixto Rafael Fernández-López [[email protected]], Departamento y UEI de Paleontología, Facultad de Ciencias Geológicas (UCM) e Instituto de Geología Económica (CSIC-UCM), 28040-Madrid (Spain); Giulio Pavia [[email protected]], Dipartimento di Scienze della Terra, via Valperga Caluso 35, 10125-Torino (Italy); Elisabetta Erba [[email protected]], Dipartimento di Scienze dalla Terra “Ardito Desio”, Università degli Studi di Milano, Via Mangiagalli, 34, 20133-Milano (Italy); Myette Guiomar [[email protected]], Centre de géologie – Parc Saint-Benoît, 04000- Digne les bains (France); Maria Helena Henriques [[email protected]], Departamento Ciências da Terra e Centro de Geociências, Faculdade de Ciências e Tecnologia, Universidade de Coimbra, 3000-272 Coimbra (Portugal); Roberto Lanza [[email protected]],
    [Show full text]
  • Depositional Architecture of the Polish Epicontinental Middle Jurassic Basin
    Geological Quarterly, Vol. 41, No.4, 1997, p. 491-508 PROJEKT KBN PBZ 02·03 Depositional architecture of the Polish epicontinental Middle Jurassic basin Anna FELDMAN-OLSZEWSKA Zaklad Geologii Regionalnej i Naftowej, Paristwowy Instytut Geologiczny, Rakowiecka 4, 00-975 Warszawa, Poland (Received: 24.1 0.1997) A number of depositional systems and sub-systems have been distinguished recognized within the stratigraphical column, the Middle Jurassic deposits within the Middle Jurassic deposits of the Polish Lowlands: fluvial, siliciclas­ have been subdivided into six transgressive-regressive cycles. They have tic shelf (with shallower and deeper shelf - the latter includes anoxic shelf been compared with the eustatic curves of B. U. Haq et al. (1988) and A. facies), carbonate-clastic shelf, carbonate ramp and starved shelf. On the basis Hallam (1988). of the analysis of their vertical succession and lateral changes as well as gaps INTRODUCTION The analysis of depositional systems has been performed ticularly in the central region), (2) lithological data from on a basis of several tens of boreholes situated in the Mid-Pol­ archival materials and published papers (R. Dadlez, J. Dem­ ish Trough and along its margins (Fig. 1). Boreholes with the bowska, 1965; K. Dayczak-Calikowska, 1977a-e, 1987, best geological material, i. e. entirely or almost entirely cored 1990; K. Dayczak-Calikowska, J. Kopik, 1973; A. Ry 11, 1970, and having a legible wireline log record, are shown as both 1971, 1983; J. Znosko, 1957) and (3) maps constructed by individual borehole sections and two correlations stretching geologists of the Polish Geological Institute during many across the Mid-Polish Trough: years' studies.
    [Show full text]
  • Formal Proposal for the Bathonian GSSP (Middle Jurassic) in the Ravin Du Bes Section (Bas-Auran, SE France)
    Formal proposal for the Bathonian GSSP (Middle Jurassic) in the Ravin du Bes Section (Bas-Auran, SE France) SIXTO R. FERNANDEZ-L6PEZ " *, GIULIO P AVIA 2, ELISABETTA ERBA3, MYETT GUIOMAR., MARIA H, HENRIQUES5, ROBERTO LANZA2, CHARLES MANGOLD6, DAVIDE OLIVER06 & DANIELE TIRABOSCHI3 Key words: Bathonian GSSp, cbroll ostratigraphy, biostratigraphy, geochronology, Ammonoidea, calcareous nannofossils ABSTRACT The Bathonian Global Stratotype Section and Point (GSSP) is proposed at nannofossils) for worldwide correlation. The base of the Bathonian Stage the base of limestone bed RB071 (bed 23 in Sturani 1967) in the Ravin du and Zigzag Zone in Bas-Auran corresponds to the first occurrence level of Bes Section (43057' 38" N, 6° IS' 55" E), Bas-Auran area, "Alpes de Haute Gonolkites convergens BUCKMAN, which coincides with the first occurrence of Provence" French department. The Ravin du BesSectioll, as formal candidate Morphoceras parvum WETZEL Calcareous nannofossils, as secondary global GSSP for the base of the Bathonian Stage, satisfies most of the requirements marker, are present in all beds and allow characterizing the Bajocian-Batho­ recommended by the International Commission on Stratigraphy: 1) The ex­ nian transition.3) Regional analyses of sequence stratigraphy and manganese posure extends over 13 m in thickness. At the Bajocian-Bathonian transition, chemostratigraphy are available. Spectral gamma-ray data corroborate an no vertical (bio-, ichno- or tap ho-) facies changes, condensation, stratigraphic Early Bathonian deepening half-cycle of second order. 4) The criteria of ac­ gaps or hiatuses have been recorded. Structural complexity, synsedimentary cessibility,conservation and protection are assured by the "Reserve Naturelle and tectonic disturbances, or important alterations by metamorphism are not Geologique de Haute Provence".
    [Show full text]
  • Biostratigraphy, Lithostratigraphy, Ammonite Taxonomy and Microfacies Analysis of the Middle and Upper Jurassic of Norteastern Iran
    Biostratigraphy, Lithostratigraphy, ammonite taxonomy and microfacies analysis of the Middle and Upper Jurassic of norteastern Iran. Dissertation zur Erlangung des Naturwissenschaftlichen Doktorgrades Der Bayerischen Julius-Maximilians-Universität Würzburg vorgelegt von Mahmoud Reza Majidifard aus Teheran Würzburg, 2003-10-22 I To my wife and my daughter II Abstract The Middle and Upper Jurassic sedimentary successions of Alborz in northern Iran and Koppeh Dagh in northeastern Iran comprise four formations; Dalichai, Lar (Alborz) and Chaman Bid, Mozduran (Koppeh Dagh). In this thesis, the biostratigraphy, lithostratigraphy, microfacies, depositional environments and palaeobiogeography of these rocks are discussed with special emphasis on the abundant ammonite fauna. They constitute a more or less continuous sequence, being confined by two tectonic events, one at the base, in the uppermost part of the Shemshak Formation (Bajocian), the so-called Mid-Cimmerian Event, the other one at the top (early Cretaceous), the so-called Late-Cimmerian Event. The lowermost unit constitutes the uppermost member of a siliciclastic and partly continental depositional sequence known as Shemshak Formation. It contains a fairly abundant ammonite fauna ranging in age from Aalenian to early Bajocian. The following unit (Dalichai Formation) begins everywhere with a significant marine transgression of late Bajocian age. The following four sections were measured: The Dalichai section (97 m) with three members; the Golbini-Jorbat composite section (449 m) with three members of the Dalichai Formation (414 m) and two members of the Lar Formation (414 m); the Chaman Bid section (1556 m) with seven members, and the Tooy-Takhtehbashgheh composite section (567 m) with three members of the Dalichai Formation (567 m) and four members of the Mozduran Formation (1092 m).
    [Show full text]
  • Abstracts Volume
    September 14-16, 2007 Sapporo, Japan Hokkaido University, Conference Hall Abstracts Volume website: http://www.cephalopod.jp e-mail: [email protected] Co-organized with the 21st Century Center of Excellence (COE) Program for "Neo-Science of Natural History", Faculty of Science, Hokkaido University Seventh International Symposium Cephalopods -- Present and Past, September, 2007. Sapporo, Japan. Honorary Committee Prof. Tatsuro Matsumoto (Professor Emeritus of Kyushu University, Honorary President of the Palaeontological Society of Japan, Member of the Japan Academy) Prof. Tadashi Sato (Professor Emeritus of the University of Tsukuba, President of the Fukada Geological Institute) Prof. Takashi Okutani (Professor Emeritus of the Tokyo Fisheries University, President of the Malacological Society of Japan) Organizing Committee Hiromichi Hirano (Waseda University, Co-chair) Kazushige Tanabe (University of Tokyo, Co-chair) Yasunari Shigeta (National Museum of Nature and Science, Secretary) Takenori Sasaki (University Museum, University of Tokyo, Treasure) Haruyoshi Maeda (Kyoto University, Member) Takashi Okamoto (Ehime University, Member) Masayuki Ehiro (Tohoku University Museum, Member) Seiichi Toshimitsu (Geological Survey of Japan, Member) Tsunemi Kubodera (National Museum of Nature and Science, Member) Hiroshi Nishi (Hokkaido University, Member) Scientific Committee Neil H. Landman (American Museum of Natural History, New York, NY, USA) Pascal Neige (University of Bourgogne, Dijon, France) Christian Klug (Paleontolgical Institute and Museum,
    [Show full text]
  • Late Bajocian–Bathonian Ammonites from Northeast Iran
    ACTA PALAEONTOLOGICA ROMANIAE (2015) V. 11 (2), P. 25-41 LATE BAJOCIAN–BATHONIAN AMMONITES FROM NORTHEAST IRAN Mahmoud Reza Majidifard Received: 19 August 2015 / Accepted: 18 December 2015 / Published online: 22 December 2015 Abstract The present study is the first part of a larger work concerning the systematic descriptions of the fairly rich Middle to Upper Jurassic (Late Bajocian–Early Tithonian) ammonite fauna from the northeast of Iran. The described ammonites come from the lower part of the Dalichai Formation, consisting of an alternation of green marl, grey limestone and marly limestone, and comprise the families Phylloceratidae, Spiroceratidae, Oppeliidae, Sphaeroceratidae, Stephanoceratidae, Tulitidae, Parkinsoniidae, Morphoceratidae and Perisphinctidae. Some of the taxa are recorded for the first time from Iran: Adabofoloceras subobtusum, Spiroceras cf. orbignyi, Spiroceras annulatum, Cadomites (Polyplectites) cf. dorni, Sphaeroceras tutthum, Garantiana (Orthogarantiana) cf. Densicostata, Garantiana (Pseudogarantiana) dichotoma, Morphoceras egrediens, Microbajocisphinctes cf. pseudointerruptus, Homoeoplanulites (Homoeoplanulites) cf. bugesiacus, Homoeoplanulites (Parachoffatia) arkelli. The following Upper Bajocian to Lower Bathonian ammonite zones are present: Niortense, Garantiana, Parkinsoni, Zigzag, Retrocostatum and Discus. Palaeobiogeographically, the described ammonite fauna is closely related to those from the Sub-Mediterranean Province of the northwestern Tethys. Keywords: Jurassic; Iran; Late Bajocian–Bathonian; ammonites;
    [Show full text]