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Ancient Lacustrine Hyperpycnites: a Depositional Model from a Case Study in the Rayoso Formation (Cretaceous) of West-Central Argentina
Journal of Sedimentary Research, 2006, v. 76, 41–59 Reseach Article DOI: 10.2110/jsr.2006.12 ANCIENT LACUSTRINE HYPERPYCNITES: A DEPOSITIONAL MODEL FROM A CASE STUDY IN THE RAYOSO FORMATION (CRETACEOUS) OF WEST-CENTRAL ARGENTINA CARLOS ZAVALA,1,2 JUAN JOSE´ PONCE,2 MARIANO ARCURI,2 DANIEL DRITTANTI,1 HUGO FREIJE,2 2 AND MARCOS ASENSIO 1Departamento de Geologı´a, Universidad Nacional del Sur, San Juan 670, 8000 Bahı´a Blanca, Argentina 2Instituto Argentino de Oceanografı´a, Consejo Nacional de Investigaciones Cientı´ficas y Te´cnicas, Camino de La Carrindanga 7.5 km, 8000 Bahı´a Blanca, Argentina e-mail: [email protected] ABSTRACT: Hyperpycnal flows originate when sediment-laden fluvial discharges enter standing, lower-density water. Because of their excess density, the flows plunge near the river mouth and continue to travel basinward as a quasi-steady and fully turbulent underflow. The related deposits are hyperpycnites, and constitute a particular type of turbidite with poorly known facies and facies tracts. Although hyperpycnal flows seem to be quite common in present times, their occurrence in fossil strata is poorly documented. This paper addresses the characteristics and depositional processes of shallow lacustrine sandy hyperpycnites, on the basis of the field analysis of well-exposed Lower Cretaceous strata (Rayoso Formation) in the Neuque´n Basin of west-central Argentina. The Rayoso Formation is composed of clastic (and minor evaporitic) red beds up to 1200 m thick, deposited in a shallow perennial lake of variable salinity affected by long-lived hyperpycnal flows. Main clastic facies are composed of fine-grained sandstones with climbing ripples and plane beds. -
Geology and Stratigraphy Column
Capitol Reef National Park National Park Service U.S. Department of the Interior Geology “Geology knows no such word as forever.” —Wallace Stegner Capitol Reef National Park’s geologic story reveals a nearly complete set of Mesozoic-era sedimentary layers. For 200 million years, rock layers formed at or near sea level. About 75-35 million years ago tectonic forces uplifted them, forming the Waterpocket Fold. Forces of erosion have been sculpting this spectacular landscape ever since. Deposition If you could travel in time and visit Capitol Visiting Capitol Reef 180 million years ago, Reef 245 million years ago, you would not when the Navajo Sandstone was deposited, recognize the landscape. Imagine a coastal you would have been surrounded by a giant park, with beaches and tidal flats; the water sand sea, the largest in Earth’s history. In this moves in and out gently, shaping ripple marks hot, dry climate, wind blew over sand dunes, in the wet sand. This is the environment creating large, sweeping crossbeds now in which the sediments of the Moenkopi preserved in the sandstone of Capitol Dome Formation were deposited. and Fern’s Nipple. Now jump ahead 20 million years, to 225 All the sedimentary rock layers were laid million years ago. The tidal flats are gone and down at or near sea level. Younger layers were the climate supports a tropical jungle, filled deposited on top of older layers. The Moenkopi with swamps, primitive trees, and giant ferns. is the oldest layer visible from the visitor center, The water is stagnant and a humid breeze with the younger Chinle Formation above it. -
A New Rebbachisaurid Sauropod from the Lower Cretaceous (Albian) of the Rayoso Formation (Neuquén, Argentina)
VII Jornadas Internaciones sobre Paleontología de Dinosaurios y su Entorno. Salas de los Infantes, Burgos A new rebbachisaurid sauropod from the Lower Cretaceous (Albian) of the Rayoso Formation (Neuquén, Argentina) CANUDO, J.I.1,2, CARBALLIDO, J.L.3, GARRIDO, A.4,5, SALGADO, L.6 1 Aragosaurus–IUCA, Paleontología, Facultad de Ciencias, Pedro Cerbuna 12, Universidad de Zaragoza, 50009, Zaragoza, Spain, [email protected] 2 Museo de Ciencias Naturales de la Universidad de Zaragoza, Plaza Basilio Paraíso, 50008 Zaragoza, Spain 3 Conicet–Museo ‘Egidio Feruglio,’ Fontana 140, 9100 Trelew, Argentina, [email protected] 4 Museo Provincial de Ciencias Naturales ‘Prof. Dr. Juan Olsacher,’ Dirección Provincial de Minería, Etcheluz y Ejército Argentino (8340), Zapala, Argentina, [email protected] 5 Departamento Geología y Petróleo, Facultad de Ingeniería, Universidad Nacional del Comahue, Buenos Aires 1400, Neuquén (8300), Argentina 6 Instituto de Investigación en Paleobiología y Geología, Universidad Nacional de Río Negro, Conicet, Av. Gral. J.A. Roca 1242, 8332 General Roca, Argentina, [email protected] Keywords: Early Cretaceous, Rayoso Formation, Argentina, Rebbachisauridae The rebbachisaurids are a group of medium‐sized sauropods with a fundamentally Gondwanan distribution (South America, Africa) from the middle‐upper part of the Early Cretaceous to the lower part of the Late Cretaceous. They were the last diplodocoids in becoming extinct. They are also recorded in Europe, with Demandasaurus, having been described in Salas de los Infantes, Spain (Torcida Fernández‐Baldor et al., 2011). The rebbachisaurids have played a particularly significant role in the recognition of the events of dispersal and vicariance that took place within Gondwana and between Gondwana and Laurasia in the Early Cretaceous, the time of the rupture and definitive separation of Africa and South America. -
Abstract (Pdf)
2 Congresso GeoSed 25-26 Settembre 2008 Aula Magna Palazzo di Scienze della Terra Campus Universitario Via E. Orabona 4 BARI Atti del Congresso a cura di: Massimo Moretti ORGANIZZAZIONE Coordinamento Luisa Sabato Segreteria Luigi Spalluto Comitato organizzatore Salvatore Gallicchio Massimo Moretti Luisa Sabato Luigi Spalluto Marcello Tropeano Collaboratori Alessia Barchetta Elisa Costantini Antonietta Cilumbriello Antonio Grippa Michele Labriola Rosanna Laragione Stefania Lisco Vincenzo Onofrio Mariangela Pepe Patrocinio e Contributo Università degli Studi di Bari Dipartimento di Geologia e Geofisica Dottorato di Scienze della Terra Regione Puglia Regione Basilicata Provincia di Bari Comune di Bari Commissione Italiana “Anno Internazionale del Pianeta Terra” 4 INDICE DEL VOLUME G. Aiello, A. Conforti, B. D’Argenio Regional marine geologic cartography of the Naples Bay (scale 1:10.000): the geological map n. 465 “Procida” pag. 1 G. Aiello, E. Marsella, S. Passaro The continental slopes off the Ischia island (Naples Bay): submarine gravity instability processes investigated by means of marine geological and geophysical data pag. 4 M. Aldinucci, I. Martini, F. Sandrelli The Pliocene deposits of the northern Siena Basin (Tuscany, Italy) revised through unconformity-bounded stratigraphic units pag. 6 A. Alfarano, M. Delle Rose, L. Orlanducci, F. Resta Rapporti stratigrafici tra pietra leccese, piromafo e Calcareniti di Andrano (area urbana e periferia est di Lecce) pag. 8 S. Andreucci, V. Pascucci, M. D. Bateman Record of three peaks during the Marine Isotopic Stage MIS5 along the Alghero coast, NW Sardinia, Italy: Sea level implication pag. 10 A. Barchetta, L. Spalluto Stratigrafia e caratteri di facies delle successioni carbonatiche affioranti nell’area compresa tra Binetto e Grumo Appula (Murge baresi, Puglia) pag. -
Latest Early-Early Middle Eocene Deposits of Algeria
MONOGRAPH Latest Early-early Middle Eocene deposits of Algeria (Glib Zegdou, HGL50), yield the richest and most diverse fauna of amphibians and squamate reptiles from the Palaeogene of Africa JEAN-CLAUDE RAGEa †, MOHAMMED ADACIb, MUSTAPHA BENSALAHb, MAHAMMED MAHBOUBIc, LAURENT MARIVAUXd, FATEH MEBROUKc,e & RODOLPHE TABUCEd* aCR2P, Sorbonne Universités, UMR 7207, CNRS, Muséum National d’Histoire Naturelle, Université Paris 6, CP 38, 57 rue Cuvier, 75231 Paris cedex 05, France bLaboratoire de Recherche n°25, Université de Tlemcen, BP. 119, Tlemcen 13000, Algeria cLaboratoire de Paléontologie, Stratigraphie et Paléoenvironnement, Université d’Oran 2, BP. 1524, El M’naouer, Oran 31000, Algeria dInstitut des Sciences de l’Evolution de Montpellier (ISE-M), UMR 5554 CNRS/UM/ IRD/EPHE, Université de Montpellier, Place Eugène Bataillon, 34095 Montpellier cedex 5, France eDépartement des Sciences de la Terre et de l’Univers, Faculté des Sciences de la Nature et de la Vie, Université Mohamed Seddik Ben Yahia - Jijel, BP. 98 Cité Ouled Aïssa, 18000 Jijel, Algeria * Corresponding author: [email protected] Abstract: HGL50 is a latest Early-early Middle Eocene vertebrate-bearing locality located in Western Algeria. It has produced the richest and most diverse fauna of amphibians and squamate reptiles reported from the Palaeogene of Africa. Moreover, it is one of the rare faunas including amphibians and squamates known from the period of isolation of Africa. The assemblage comprises 17 to 20 taxa (one gymnophionan, one probable caudate, three to six anurans, seven ‘lizards’, and five snakes). Two new taxa were recovered: the anuran Rocekophryne ornata gen. et sp. nov. and the snake Afrotortrix draaensis gen. -
Oil and Gas Plays Ute Moutnain Ute Reservation, Colorado and New Mexico
Ute Mountain Ute Indian Reservation Cortez R18W Karle Key Xu R17W T General Setting Mine Xu Xcu 36 Can y on N Xcu McElmo WIND RIVER 32 INDIAN MABEL The Ute Mountain Ute Reservation is located in the northwest RESERVATION MOUNTAIN FT HALL IND RES Little Moude Mine Xcu T N ern portion of New Mexico and the southwestern corner of Colorado UTE PEAK 35 N R16W (Fig. UM-1). The reservation consists of 553,008 acres in Montezu BLACK 666 T W Y O M I N G MOUNTAIN 35 R20W SLEEPING UTE MOUNTAIN N ma and La Plata Counties, Colorado, and San Juan County, New R19W Coche T Mexico. All of these lands belong to the tribe but are held in trust by NORTHWESTERN 34 SHOSHONI HERMANO the U.S. Government. Individually owned lands, or allotments, are IND RES Desert Canyon PEAK N MESA VERDE R14W NATIONAL GREAT SALT LAKE W Marble SENTINEL located at Allen Canyon and White Mesa, San Juan County, Utah, Wash Towaoc PARK PEAK T and cover 8,499 acres. Tribal lands held in trust within this area cov Towaoc River M E S A 33 1/2 N er 3,597 acres. An additional forty acres are defined as U.S. Govern THE MOUND R15W SKULL VALLEY ment lands in San Juan County, Utah, and are utilized for school pur TEXAS PACIFIC 6-INCH OIL PIPELINE IND RES UNITAH AND OURAY INDIAN RESERVATION Navajo poses. W Ramona GOSHUTE 789 The Allen Canyon allotments are located twelve miles west of IND RES T UTAH 33 Blanding, Utah, and adjacent to the Manti-La Sal National Forest. -
The Paleozoic Record of Thaumatoporella PIA, 1927?
Geologia Croatica 66/3 155–182 12 Figs. 3 Tabs. 8 Pls. Zagreb 2013 Palaeozoic record of Thaumatoporella PIA, 1927 (incertae sedis)? Felix Schlagintweit1, Jindrich Hladil2, Martin Nose3 and Carlo Salerno4 1 Lerchenauerstr. 167, 80935 München, Germany; ([email protected]) 2 Institute of Geology ASCR, v. v. i., Rozvojová 269, 16500 Praha, Czech Republic; ([email protected]) 3 SNSB-Bayerische Staatssammlung für Paläontologie und Geologie, GeoBioCenterLMU, Richard-Wagner-Str. 10, 80333 München, Germany; ([email protected]) 4 Lenzhalde 70, 70192 Stuttgart, Germany; ([email protected]) doi: 10.4154/gc.2013.14 GeologiaGeologia CroaticaCroatica AB STRA CT From Palaeozoic (mainly Devonian) shallow-water carbonates, spherical to irregular shaped microfossils with thin, apparently homogeneous or perforate micritic walls are widely reported. They are classically referred either to uniloc- ular parathuramminid foraminifera, algae incertae sedis or calcispheres (e.g., Bisphaera, Cribrosphaeroides, Uslo nia, Vermiporella myna, Irregularina). Due to their morphology and microstructural features, they are interpreted here as possibly belonging to Thaumatoporella PIA, a widespread Mesozoic-Early Cenozoic taxon of incertae sedis showing a remarkably high morphological variability. In analogy to Mesozoic thaumatoporellaceans, Bisphaera ma levkensis BIRINA is interpreted as the cyst (i.e.= resting) stage of forms ascribed to different genera, i.e., Cribro sphaeroides, Uslonia and Vermiporella (here: Vermiporella myna WRAY). Note that in the Mesozoic many taxa were also synonymized with Thaumatoporella: Polygonella ELLIOTT, Lithoporella elliotti (EMBERGER), Messopota mella DRAGASTAN et al., Vermiporella crisiae DRAGASTAN et al., Micritosphaera SCOTT. This new interpretation, based on material from the Devonian of W-Germany and the Czech Republic, leads to taxonomic reassessment as Thaumatoporella? malevkensis (BIRINA) nov. -
Lithology and Subdivisions of the Jurassic Stump Formation in Southeastern Idaho and Adjoining Areas
Lithology and Subdivisions of the, . „ - nj,Jurassic ~ - -' - - - - Stump- - - - JL": •-Formation - - - - - in Southeastern Idaho and dning iGEOLOGlCAL SURVEY PROFESSIONAL PAPER 1035-C Lithology and Subdivisions of the Jurassic Stump Formation in Southeastern Idaho and Adjoining Areas By GEORGE N. PIPIRINGOS and RALPH W. IMLAY UNCONFORMITIES, CORRELATION, AND NOMENCLATURE OF SOME TRIASSIC AND JURASSIC ROCKS, WESTERN INTERIOR UNITED STATES GEOLOGICAL SURVEY PROFESSIONAL PAPER 1035-C Marked rapid lateral changes in lithology, fossil content, and thickness of the Stump Formation are due principally to erosion associated with the Cretaceous (K) and Jurassic (]-4) unconformities UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON 1979 UNITED STATES DEPARTMENT OF THE INTERIOR CECIL D. ANDRUS, Secretary GEOLOGICAL SURVEY H. William Menard, Director Library of Congress Cataloging in Publication Data Pipiringos, George Nicholas, 1918- Lithology and subdivisions of the Jurassic stump formation in southeastern Idaho and adjoining areas. (Unconformities, correlation, and nomenclature of some Triassic and Jurassic rocks, western interior United States) (Geological Survey Professional Paper 1035-C) Bibliography: p. 25 1. Geology, Stratigraphic Jurassic. 2. Geology Idaho. 3. Geology The West. 4. Petrology Idaho. 5. Petrology-The West. I. Imlay, Ralph Willard, 1908-joint author. II. Title. HI. Series. IV. Series: United States Geological Survey Professional Paper 1035-C. QE681.P49 551.7'6 78-1687 For sale by the Superintendent of Documents, U.S. Government -
A New Species of Lapparentophis from the Mid-Cretaceous Kem Kem Beds, Morocco, with Remarks on the Distribution of Lapparentophiid Snakes Romain Vullo
A new species of Lapparentophis from the mid-Cretaceous Kem Kem beds, Morocco, with remarks on the distribution of lapparentophiid snakes Romain Vullo To cite this version: Romain Vullo. A new species of Lapparentophis from the mid-Cretaceous Kem Kem beds, Morocco, with remarks on the distribution of lapparentophiid snakes. Comptes Rendus Palevol, Elsevier Masson, 2019, 18 (7), pp.765-770. 10.1016/j.crpv.2019.08.004. insu-02317387 HAL Id: insu-02317387 https://hal-insu.archives-ouvertes.fr/insu-02317387 Submitted on 19 Jun 2020 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Distributed under a Creative Commons Attribution - NonCommercial - NoDerivatives| 4.0 International License C. R. Palevol 18 (2019) 765–770 Contents lists available at ScienceDirect Comptes Rendus Palevol www.sci encedirect.com General Palaeontology, Systematics, and Evolution (Vertebrate Palaeontology) A new species of Lapparentophis from the mid-Cretaceous Kem Kem beds, Morocco, with remarks on the distribution of lapparentophiid snakes Une nouvelle espèce de Lapparentophis du Crétacé moyen des Kem Kem, Maroc, et remarques sur la distribution des serpents lapparentophiidés Romain Vullo Université de Rennes, CNRS, Géosciences Rennes, UMR 6118, 35000 Rennes, France a b s t r a c t a r t i c l e i n f o Article history: Two isolated trunk vertebrae from the ?uppermost Albian–lower Cenomanian Kem Kem Received 27 February 2019 beds of Morocco are described and assigned to Lapparentophis, an early snake genus known Accepted after revision 29 August 2019 from coeval deposits in Algeria. -
General Report of Hydrogeological Risk Management
Project FLAT 2019/2020 “Flood and Landslide Assistance and Training” General report of Hydrogeological risk management ITALIAN SECTION MONTENEGRIN SECTION ALBANIAN SECTION GENERAL INDEX ITALIAN SECTION 1. Introduction to hydrogeological risks pag. 4 2. The territory of Brindisi: geology and hydrogeomorphology pag. 6 2.1 Geographic location pag. 6 2.2 Geological setting pag. 7 2.3 Morphological features pag. 8 2.4 Hydrological features pag. 8 3. Elements of geological and hydrogeological risk in the territory of Brindisi pag. 10 3.1 Hazard due to the activation of landslides pag. 10 3.2 Hazard due to coastal erosion phenomena pag. 10 3.3 Hazard due to flood phenomena pag. 11 4. Representative risk areas pag. 12 4.1 Geomorphological risk pag. 12 4.2 Hydrological risk pag. 19 5. Defense and hydrogeological risk management in the Brindisi area pag. 24 5.1 The Regional Flood Management Plan (Piano di Gestione Regionale della Alluvioni-PGRA) pag. 24 5.2 Hydrogeological risk plan of Apulia Region (Piano Stralcio per l’Assetto Idrogeologico della Puglia - PAI) pag. 27 5.2.1 Methods for hydrogeological risk analysis pag. 27 5.2.2 Evaluation of Hazard from Landslide - Methodology and Perimetration pag. 30 5.2.3 PAI methodology pag. 32 5.2.4 Evaluation of Hydraulic Hazard - Methodology and Perimetration pag. 39 5.2.5 Interventions for Hydraulic Risk Mitigation pag. 41 5.3 Regional Coastal Plan of the Apulia region (Piano Regionale delle Coste della Puglia-PRC) pag. 46 6. Recommendations for hydrogeological risk protection in the Brindisi area pag. 48 References pag. -
Geology of the Northern Portion of the Fish Lake Plateau, Utah
GEOLOGY OF THE NORTHERN PORTION OF THE FISH LAKE PLATEAU, UTAH DISSERTATION Presented in Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy in the Graduate School of The Ohio State - University By DONALD PAUL MCGOOKEY, B.S., M.A* The Ohio State University 1958 Approved by Edmund M." Spieker Adviser Department of Geology CONTENTS Page INTRODUCTION. ................................ 1 Locations and accessibility ........ 2 Physical features ......... _ ................... 5 Previous w o r k ......... 10 Field work and the geologic map ........ 12 Acknowledgements.................... 13 STRATIGRAPHY........................................ 15 General features................................ 15 Jurassic system......................... 16 Arapien shale .............................. 16 Twist Gulch formation...................... 13 Morrison (?) formation...................... 19 Cretaceous system .............................. 20 General character and distribution.......... 20 Indianola group ............................ 21 Mancos shale. ................... 24 Star Point sandstone................ 25 Blackhawk formation ........................ 26 Definition, lithology, and extent .... 26 Stratigraphic relations . ............ 23 Age . .............................. 23 Price River formation...................... 31 Definition, lithology, and extent .... 31 Stratigraphic relations ................ 34 A g e .................................... 37 Cretaceous and Tertiary systems . ............ 37 North Horn formation. .......... -
Terrestrial Ecosystems on the Mesozoic Peri-Adriatic Carbonate Platforms: the Vertebrate Evidence
Asociación Paleontológica Argentina. Publicación Especial 7 ISSN 0328-347X VII International Symposium on Mesozoic Terrestrial Ecosystems: 77-83. Buenos Aires, 30-6-2001 Terrestrial ecosystems on the Mesozoic peri-Adriatic carbonate platforms: the vertebrate evidence Fabio M. DALLAVECCHIN Abstract. The remains of Mesozoic carbonate platforms outcrop along the margins of the Adriatic Sea and the mountain chains surrounding them in Italy, Slovenia and Croatia. Despite the fact that the platforms were far from continents, abundant evidence of terrestrial vertebrates was recently found, mainly in the Norian, Lower Jurassic and Cretaceous, and is here reviewed. The presence of populations of large ter- restrial vertebrates (mainly dinosaurs) on these carbonate platforms, and in particular the discovery of late Hauterivian-early Barremian sauropods and late Santonian hadrosaurids, has important paleoecological and paleogeographical implications. Key words. Peri-Adriatic carbonate platforms. MesozoicTethysianpaleogeography.Mesozoicterrestrial vertebrates. Paleoichnology.Reptilia. Dinosauria. Theropoda. Sauropoda. Ornithopoda. Hadrosauridae. Introduction by them to the African (Early Cretaceous) or Laurasian (Triassic-Early Jurassic) continent, but Mesozoic carbonate platforms outcrop as thick were at best very far (hundreds of kilometres) from sequences of carbonates, more or less disrupted and "land", considering it in the "orthodox" way, i.e. a piled up by the Alpine orogeny, along the margins of wide area of silicoclastic fluvialjlacustrine sedimen- the Adriatic Sea in Italy, Slovenia and Croatia. tation or non-deposition. The vertebrate faunas During the Norian these platforms were not clearly found on them (mainly the Cretaceous ones) are thus differentiated and the whole region was part of a the very singular case of faunas living on carbonate wide pericontinental carbonate platform along the platforms separated from a continental area.