DOCSLIB.ORG

Nestell Guadalupian.Vp

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Nestell Guadalupian.Vp CONTENTS Volume 52 Number 1 2006 FAUNAL ANALYSIS 1 Galina P. Nestell and Merlynd K. Nestell Middle Permian (Late Guadalupian) foraminifers from Dark Canyon, Guadalupe Moun- tains, New Mexico SYSTEMATICS 51 Neil E. Tibert and Christopher P. Dewey Velatomorpha, a new healdioidean ostracode genus from the early Pennsylvanian Joggins Formation, Nova Scotia, Canada PALEOECOLOGY 67 Marci M. Robinson and Randolph A. McBride Benthic foraminifera from a relict flood tidal delta along the Virginia/North Carolina Outer Banks SHORT NOTES 81 Patrizia Maiorano Reticulofenestra circus var. lata n.var.: a large reticulofenestrid (Coccolithophoridae) from the Early Oligocene 87 Hossein Hashemi and Mahtab Fahimi Dictyotidium senticogremium sp. nov., a new prasinophyte (Chlorophyta) phycoma from the Upper Devonian of northern Iran ANNOUNCEMENT The Editors Internet access for subscribers Middle Permian (Late Guadalupian) foraminifers from Dark Canyon, Guadalupe Mountains, New Mexico Galina P. Nestell and Merlynd K. Nestell Department of Earth and Environmental Sciences, University of Texas at Arlington, Arlington, TX 76019, USA email: [email protected]; [email protected] ABSTRACT: Late Capitanian foraminifers are described from two cores taken by Amoco on the north side of the entrance of Dark Canyon. The Amoco #1 core (400ft) penetrates proximal forereef debris of the Tansill Formation and bottoms in massive Capitan reefal limestone. The Amoco #2 core (468ft) penetrates proximal backreef lagoonal deposits of the upper Yates Formation and the Tansill Formation. Foraminifers are very diverse and abundant in these cores. Based on the fusulinid distribution, the Codonofusiella extensa (upper part of the Yates Formation), Yabeina texana, Paradoxiella pratti and Reichelina lamarensis zones (lower and middle Tansill Forma- tion) are present in the Amoco #2 core. Among small foraminifers, the first appearance of the genera Sengoerina and Crescentia are re- corded at the base of the Y. texana Zone and they disappear at the top of the P. pratti Zone. The genus Baisalina appears at the base of the R. lamarensis Zone and disappears at the top of that zone. The Ocotillo Silt Member and upper dolomitized part of the Tansill For- mation do not contain foraminifers. The Ocotillo Silt Member is present in the Amoco #2 core at a depth of from 88 to 112ft and, be- cause of its regional dip of approximately six degrees, would possibly project below the base of the Amoco #1 core, thus correlating the Capitan and Tansill formations in the Amoco #1 core with the upper Tansill Formation of the Amoco #2 core. The lower part of the Amoco #1 core (from 110 to 370ft) contains fusulinacean species of the Paraboultonia splendens Zone. The assemblage of small foraminifers is dominated by species of nodosariids and hemigordiopsids. Four new genera and sixteen new species of foraminifers are described from both cores. INTRODUCTION AND STRATIGRAPHIC SETTING ent in the lower part of the Guadalupian, but not in the upper The Guadalupe Mountains in southeastern New Mexico and part. In the Guadalupe Mountains, the last appearance of the West Texas is a northeasterly tilted tectonic block of Mid- very large fusulinacean Polydiexodina appears to be in the mid- dle/Upper Permian strata exhumed in the Tertiary (Hayes 1964) dle part of the reefal Yates Formation (top of Yates B, middle and forms the classic shelf-to-basin exposures of the Middle Capitanian, Bebout and Kerans 1993) (text-fig. 1). The Permian Capitan reef depositional system. The International fusulinacean assemblage in the overlying upper part of the Commission on Stratigraphy (ICS) recently published an Inter- Yates Formation, Tansill (equivalent to basinal Lamar and national Standard for the Middle Permian Guadalupian Series “post-Lamar”) Formation is dominated by small fusulinaceans consisting of the Roadian, Wordian and Capitanian stages, the such as Codonofusiella, Yabeina, Reichelina, and Paraboult- stratotype sections of which were designated in the Guadalupe onia. Wilde (1990) proposed a Zone of Paraboultonia for the Mountains (Gradstein 2000, Gradstein et al. 2004, Wardlaw et last fusulinacean interval at the top of the Guadalupian. Re- al. 2004). The lower boundaries of these stages have been cently, Wilde et al. (1999) formally introduced the name Reef drawn based primarily on the first appearance of conodonts: for Trail Member for the “post-Lamar” strata at the top of the Bell the Roadian - Jinogondolella nankingensis;theWordian-J. Canyon Formation and illustrated fusulinaceans from four suc- aserrata; and the Capitanian - J. postserrata (Glenister et al. cessive fusulinacean zones: Yabeina, Paradoxiella, Reichelina, 1999, Wardlaw et al. 2004) (text-fig. 1). The boundary of the and Paraboultonia. Unfortunately, in this paper (Wilde et al. Guadalupian with the overlying Lopingian Series is based on 1999, fig. 3), the Guadalupian/Lopingian boundary was drawn the evolutionary transition of the conodont Clarkina postbitteri with question in the lower part of the Reef Trail Member with hongshuiensis into C. postbitteri postbitteri (Wardlaw et al. the implication that the Paraboultonia Zone was entirely of 2004). In a recent paper, Lambert et al. (2002) illustrated speci- Lopingian age. Although Wilde et al. (1999) discussed the mens of C. p. hongshuiensis from the western part of the fusulinacean succession in this interval as support for this con- Apache Mountains in West Texas that conclusively demon- clusion, it was premature for Wilde to suggest the placement of strated that the Guadalupian Series is essentially complete in this boundary in the Guadalupian stratotype because the cono- the type area. dont succession in the type section of the Reef Trail Member had not been completely documented. In a recent paper, Lam- Fusulinaceans are also present in abundance in Guadalupian bert et al. (2002) clearly documented the upper boundary of the strata of West Texas and have been used for many years in both Capitanian in an undisturbed section in the western part of the regional and international correlations of the Permian System Apache Mountains to the south of the Guadalupe Mountains. In (Dunbar and Skinner 1937, Ross 1964, Wilde 1955, 1975, this section (Lambert et al. 2002, fig. 3), the last appearance of 1990, Skinner and Wilde 1954, 1955, Wilde and Rudine 2000, Paraboultonia is in bed E1, about two meters below the first Yang and Yancey 2000). Large fusulinaceans of several genera, beds of the Castile Formation and in the same bed with the first such as Parafusulina, Skinnerina, and Polydiexodina, are pres- appearance of the conodont Clarkina postbitteri hongshuiensis micropaleontology, vol. 52, no. 1, pp. 1-50, text-figures 1-8, plates 1-11, appendices 1-2, 2006 1 Galina P. Nestell and Merlynd K. Nestell: Middle Permian foraminifers from Dark Canyon, Guadalupe Mountains, New Mexico Henderson, Mei and Wardlaw. The base of the Lopingian has Only a few genera and species of fusulinaceans have been de- since been defined at the first appearance of the conodont scribed from the upper Guadalupian (upper Yates/Tansill or the Clarkina postbitteri postbitteri (Wardlaw et al. 2004). Thus, the equivalent Lamar/Reef Trail) strata in West Texas. Wilde et al. Zone of Paraboultonia is entirely Late Guadalupian in age and (1999) presented a thorough discussion of the history of the dis- there are no known Lopingian fusulinaceans in the West Texas covery of many of these forms. Two interesting and controver- succession. No evidence was documented in this study of small sial occurrences are the Tethyan form Yabeina texana,first foraminiferal species in the Dark Canyon succession to dispute reported from the McKittrick Canyon area by Skinner and this conclusion. Wilde (1955), and Paraboultonia splendens, first described from Seven Heart Gap in the Apache Mountains (Skinner and A number of well known canyons, among them McKittrick, Wilde 1954). Yabeina texana is the only true verbeekinid found Big, Slaughter, Rattlesnake, and Walnut, cut the east facing in North America, except for specimens from exotic terranes in scarp of the Guadalupe Mountains and expose various facies of the Pacific Northwest. Since its first discovery in the basal the forereef, reef and backreef deposits of the Guadalupian. Lamar Limestone Member of the McKittrick Canyon area, Dark Canyon, the northernmost of these canyons, trends Yabeina texana has also been reported from the Tansill Forma- east-west, and is located about 10 miles (15km) southwest of tion at the top of McKittrick Canyon (Tyrrell, personal commu- Carlsbad, New Mexico in the SW ¼ of Sec. 24, T23E, R25E, nication, 2005) and near the entrance of Dark Canyon (Tyrrell Eddy County, New Mexico (text-fig. 2). 1962, 1969). The two Amoco research cores were taken on the north side of DISTRIBUTION OF FORAMINIFERS IN THE CORE Dark Canyon near the entrance (text-figs. 3, 4) in the shal- HOLES low-water backreef Capitanian facies where the upper Guadalupian (Capitanian) has been subdivided into three for- The Amoco #1 core has 220ft of Tansill, 70ft of alternating mations (in ascending order): the Seven Rivers, Yates and Tansill/Capitan lithologies, and 110ft of massive Capitan Tansill formations. In this paper, small foraminifers and (text-fig. 5). Small foraminifers in the cored section consist of fusulinaceans from the Yabeina, Paradoxiella, Reichelina and 38 species belonging to 25 genera. The following species ap- Paraboultonia zones are described from these two cores. The pear in the massive Capitan facies: Tuberitina variabilis n. sp., Amoco #1 core (no. 4492) was taken near the mouth of the can- Vachardella longiuscula n. gen., n. sp., Agathammina sp. 1, yon and penetrates 398ft (121.3m) of proximal forereef debris Nodosaria cf. N. novizkiana Sosnina, N.cf.N. partisana of the Tansill Formation and bottoms in massive Capitan reef Sosnina, Geinitzina sp. 1, G. sp. 4, Tauridia sp. 4, Ichthyolaria facies. The Amoco #2 core (no. 4518) was taken approximately sp. 1, Calvezina sp. 1, Globivalvulina sp. 1, Abadehella sp. 2, 4000ft (1220m) to the west and penetrates 468ft (142.6m) of and Deckerella sp.
Load more

Recommended publications
  • Baseline Assessment of the Lake Ohrid Region - Albania
    TOWARDS STRENGTHENED GOVERNANCE OF THE SHARED TRANSBOUNDARY NATURAL AND CULTURAL HERITAGE OF THE LAKE OHRID REGION Baseline Assessment of the Lake Ohrid region - Albania IUCN – ICOMOS joint draft report January 2016 Contents ........................................................................................................................................................................... i A. Executive Summary ................................................................................................................................... 1 B. The study area ........................................................................................................................................... 5 B.1 The physical environment ............................................................................................................. 5 B.2 The biotic environment ................................................................................................................. 7 B.3 Cultural Settings ............................................................................................................................ 0 C. Heritage values and resources/ attributes ................................................................................................ 6 C.1 Natural heritage values and resources ......................................................................................... 6 C.2 Cultural heritage values and resources....................................................................................... 12 D.
    [Show full text]
  • Ostracoda of the Limestones of the Permian System
    OSTRACODA OF TEE / . SY, .D DAVIS . ., Aanaas State Colic of .~'C and Applied Science, 1950 A THESIS submitted in partial fulf illnent of tlie re, - I -ts for the decree [ Department of Geology and Geography K . : COLLEGE OP AGRICUL LIED SCIENCE • :' LO T4 i Pua i or t i Area Covered h .3 Irrv nation ••••••• 1 Stra ;!it ••••••••«•••••• 3 Pi. ads La • Methods* ••••• •• Identification of the - % *•#*«•*# ll|, . , 17 . Stra c DIstx- • . ..-oi'ossiln. « . s . 9k . .rposo o I Xxxvefl tion This investigation of the ostracode r.iicrofauna C . 10 line stones of the WoIfcamp seizes In Kansas v;as undertaken to obtain data on the abundance, and the strati/graphic and paloo- ccolocical distribution of the ostracodes. pus Studies of microfaunas have been devoted almost exclusively to bods of shale with only scattered sampling of the limestone..; of ore, it was felt that an investigation of this nature would add to our know- ledge of the micropaleontology of ostracodes. The spars ity of information on techniques of samolinr and prepax^ing limestones for mieropaleontological examination were other factors which posed a problem. It was fully realised that this problem would necessitate various trial and error methods both in the field and laboratory before a satisfactory technique could be developed. Although the main emphasis of the study was to be . ;n to the ostracodes of the limestones, other mierofossiis were not to be die . _'ded; on the contrary, they night yield valuable strat- -•aphic information, She forms, other than ostracodes, consid- ered to be most valuable stratigraphlcally were the foraminifers and the conodonts.
    [Show full text]
  • Excerpt from the Steelhead Report Concerning Napa County (212
    Historical Distribution and Current Status of Steelhead/Rainbow Trout (Oncorhynchus mykiss) in Streams of the San Francisco Estuary, California Robert A. Leidy, Environmental Protection Agency, San Francisco, CA Gordon S. Becker, Center for Ecosystem Management and Restoration, Oakland, CA Brett N. Harvey, John Muir Institute of the Environment, University of California, Davis, CA This report should be cited as: Leidy, R.A., G.S. Becker, B.N. Harvey. 2005. Historical distribution and current status of steelhead/rainbow trout (Oncorhynchus mykiss) in streams of the San Francisco Estuary, California. Center for Ecosystem Management and Restoration, Oakland, CA. Center for Ecosystem Management and Restoration NAPA COUNTY Huichica Creek Watershed The Huichica Creek watershed is in the southwest corner of Napa County. The creek flows in a generally southern direction into Hudeman Slough, which enters the Napa River via the Napa Slough. Huichica Creek consists of approximately eight miles of channel. Huichica Creek In March 1966 and in the winters of 1970 and 1971, DFG identified O. mykiss in Huichica Creek (Hallett and Lockbaum 1972; Jones 1966, as cited in Hallett, 1972). In December 1976, DFG visually surveyed Huichica Creek from the mouth to Route 121 and concluded that the area surveyed offered little or no value as spawning or nursery grounds for anadromous fish. However, the area was said to provide passage to more suitable areas upstream (Reed 1976). In January 1980, DFG visually surveyed Huichica Creek from Route 121 upstream to the headwaters. Oncorhynchus mykiss ranging from 75–150 mm in length were numerous and were estimated at a density of 10 per 30 meters (Ellison 1980).
    [Show full text]
  • Palaeoecology of a Hypersaline Carboniferous Ostracod Fauna
    J.rnicropalueontol., 6(2): 29-33, November 1987 Palaeoecology of a hypersaline Carboniferous ostracod fauna Chris P. Dewey Department of Geology and Geography, Mississippi State University, Mississippi State, MS 39762, U.S.A. ABSTRACT- A high abundance, low diversity ostracod fauna has been collected from the Lower Carboniferous Dimock and Phillips limestones in Nova Scotia, Canada. The ostracod fauna consists of Paraparchites sp. aff. P. kellettae Sohn and Beyrichiopsis lophota Copeland, as well as rare specimens of Acratia acuta (Jones & Kirkby), Bythocypris aequalis (Jones & Kirkby), and Chamishaella sirborbiculata (Munster). Growth parameters for the dominant ostracod, Paraparchites sp. aff. P. kellettae, show that a multi-generation, progenetic, parthenogenetic population developed. This reproduc- tive strategy caused rapid population growth and thereby allowed the species to take advantage of the available environmental resources. When considered together, the ostracod fauna and the sedimentology indicate that physiologically stressful hypersaline conditions prevailed. The combined data therefore provide evidence for hypersalinity tolerance and heterochronous development amongst Carboniferous ostracods. INTRODUCTION (Dewey, 1983, 1985, in press). Most of the assemblages Lower Carboniferous deposits in the Maritime Basin are dominated by paraparchitacean ostracods, which of Nova Scotia, Canada, document a series of eustati- are often considered to be indicative of nearshore cally controlled, transgressive-regressive cycles (Giles, environments (van Ameron ef d..1Y70; Becker et af., 1981). Tectonic activity resulted in the development of 1974; Bless, 1983). several interconnected sub-basins (Howie & Barss, This paper exam i n e s t 11 e para parch i t a c ea n - 1975; Bradley, 1982). Consequently. the complex dominated ostracod fauna of a carbonate sabkha interaction of eustacy, tectonism and climate resulted environment from the Windsor Group of the Minas- in a range of palaeoenvironments that include alluvial Shubenacadie Sub-Basin in Nova Scotia (Fig.
    [Show full text]
  • Development of the Eocene Elko Basin, Northeastern Nevada: Implications for Paleogeography and Regional Tectonism
    DEVELOPMENT OF THE EOCENE ELKO BASIN, NORTHEASTERN NEVADA: IMPLICATIONS FOR PALEOGEOGRAPHY AND REGIONAL TECTONISM by SIMON RICHARD HAYNES B.Sc, Brock University, 1998 A THESIS SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF SCIENCE in THE FACULTY OF GRADUATE STUDIES (Department of Earth and Ocean Sciences) We accept this thesis as conforming _tQ the required standard THE UNIVERSITY OF BRITISH COLUMBIA April 2003 © Simon Richard Haynes, 2003 In presenting this thesis in partial fulfilment of the requirements for an advanced degree at the University of British Columbia, I agree that the Library shall make it freely available for reference and study. I further agree that permission for extensive copying of this thesis for scholarly purposes may be granted by the head of my department or by his or her representatives. It is understood that copying or publication of this thesis for financial gain shall not be allowed without my written permission. < Department of \z~<xc ^Qp^rs SOA<S>C-> QS_2> The University of British Columbia Vancouver, Canada ABSTRACT Middle to late Eocene sedimentary and volcanic rocks in northeastern Nevada document the formation of broad lakes, two periods of crustal extension, and provide compelling evidence that the Carlin trend was a topographic high during a major phase of gold formation. The Eocene Elko Formation consists of alluvial-lacustrine rocks that were deposited into a broad, extensional basin between the present-day Ruby Mountains-East Humboldt Range metamorphic core complex and the Tuscarora Mountains. The rocks are divided into the lacustrine-dominated, longer-lived, eastern Elko Basin, and the alluvial braidplain facies of the shorter-lived western Elko Basin.
    [Show full text]
  • The Southern California Wetlands Recovery Project’S Regional Strategy
    Developing a Science-based, Management- driven Plan for Restoring Wetlands: The Southern California Wetlands Recovery Project’s Regional Strategy Carolyn Lieberman U.S. Fish and Wildlife Service Coastal Program Mediterranean Climate Average Monthly Temperature at Lindbergh Field, San Diego 80 70 60 50 40 30 Temperature (*F) Temperature 20 10 0 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC Month Average Monthly Rainfall at Lindbergh Field, San Diego 2 1.8 1.6 1.4 1.2 1 0.8 Rainfall Rainfall (inches) 0.6 0.4 0.2 0 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC Month Based on data from 1948-1990 (http://www.wrh.noaa.gov/sgx/climate/san-san.htm) Coastal Wetland Systems of Southern California • Approximately 100 distinct systems • Total of 8,237 ha • Range = 0.03 ha – 1,322 ha – Average size = 81 ha Small Creek Mouth Systems Bell Canyon Arroyo Burro Intermittently Closing River Mouth Estuaries Malibu Lagoon Open Basin, Fringing Intertidal Wetland Anaheim Bay and Seal Beach Large Depositional River Valley Tijuana River Valley Harbors, Bay, Lagoons Mission Bay Mission Bay San Diego Bay Sensitive Species in Coastal Estuaries Ridgway’s rail Western snowy plover Belding’s savannah sparrow Salt marsh bird’s beak Light-footed clapper rail California least tern Migratory Birds Southern California Wetland Recovery Project Federal Partners National Marine Fisheries Service Natural Resources Conservation Service U.S. Army Corps of Engineers U.S. Environmental Protection Agency U.S. Fish and Wildlife Service State Partners California Natural Resources
    [Show full text]
  • Southern Coastal Santa Barbara Streams and Estuaries Bioassessment Program
    SOUTHERN COASTAL SANTA BARBARA STREAMS AND ESTUARIES BIOASSESSMENT PROGRAM 2014 REPORT AND UPDATED INDEX OF BIOLOGICAL INTEGRITY Prepared for: City of Santa Barbara, Creeks Division County of Santa Barbara, Project Clean Water Prepared By: www.ecologyconsultantsinc.com Ecology Consultants, Inc. Executive Summary Introduction This report summarizes the results of the 2014 Southern Coastal Santa Barbara Streams and Estuaries Bioassessment Program, an effort funded by the City of Santa Barbara and County of Santa Barbara. This is the 15th year of the Program, which began in 2000. Ecology Consultants, Inc. (Ecology) prepared this report, and serves as the City and County’s consultant for the Program. The purpose of the Program is to assess and monitor the “biological integrity” of study streams and estuaries as they respond through time to natural and human influences. The Program involves annual collection and analyses of benthic macroinvertebrate (BMI) samples and other pertinent physiochemical and biological data at study streams using U.S. Environmental Protection Agency (USEPA) endorsed rapid bioassessment methodology. BMI samples are analyzed in the laboratory to determine BMI abundance, composition, and diversity. Scores and classifications of biological integrity are determined for study streams using the BMI based Index of Biological Integrity (IBI) constructed by Ecology. The IBI was initially built in 2004, updated in 2009, and has been updated again this year. The IBI yields a numeric score and classifies the biological integrity of a given stream as Very Poor, Poor, Fair, Good, or Excellent based on the contents of the BMI sample collected from the stream. Several “core metrics” are calculated and used to determine the IBI score.
    [Show full text]
  • ACR Heron and Egret Project (HEP) 2018 Season
    ACR Heron and Egret Project (HEP) 2018 Season Dear Friends, Here it is once again, our annual call to “get HEP!” To all new and returning volunteers, thank you so much for contributing your time and expertise to the 29th season of ACR’s Heron and Egret Project. Together we continue to expand our rich, decades‐long data set that is put into action each year to increase our understanding of the natural world and promote its conservation. Last year we were pleased to tell you about the new Heron and Egret Telemetry Project. Led by Scott Jennings and David Lumpkin, we had a successful first year—safely tagging three adult Great Egrets. You can follow along as we observe the highly‐detailed log of their movements right here: https://www.egret.org/heron‐egret‐telemetry‐project. Coupled with the detailed reproductive information that you collect at each nesting site, these GPS data will help us improve our understanding of the roles herons and egrets play in the wetland ecosystem and how their habitat needs affect population dynamics. Ultimately, we hope these findings will inform conservation efforts and inspire generations of people to value these beautiful birds and the wetlands that sustain us all. As most of you already know, this is John Kelly’s last year as Director of Conservation Science at Audubon Canyon Ranch. Though it is difficult to imagine life at the Cypress Grove Research Center without John’s intelligent leadership, fierce conservation ethic, and kind support, we are all very grateful for the time he has given this organization and look forward to hearing about his new adventures.
    [Show full text]
  • WANDERING TATTLER Newsletter
    Wandering Dec. 2011- Jan. 2012 Tattler Volume 61 , Number 4 The Voice of SEA AND SAGE AUDUBON, an Orange County Chapter of the National Audubon Society President’s Message General Meeting by Bruce Aird January 20th - Friday evening - 7:30 pm So its December, and the thought on everyones mind is… “A Photographic Adventure at the holidays? No, what all birders are thinking about is Midway Atoll” Christmas Bird Counts (CBCs). You dont know about those? How is that even possible?! CBCs are a long- presented by Bob Steele standing holiday tradition - one of the best there is. Its as non-denominational as holiday cheer gets, and for just a Midway Atoll (mid-way between the U.S. mainland and $5 fee, its way cheaper than most of those other Japan) is important for many historical and biological traditions. This is when that bright Wilsons Warbler, so reasons. Today it is part of three federal designations - common as to be unworthy of notice three months ago, is Midway Atoll NWR, Papahânaumokuâkea Marine National suddenly a prize. The winter vagrants are settled in and Monument, and the Battle of Midway National Memorial. now we work to find them for the CBCs. Trust me, theres Well over a million seabirds use the three tiny islands in no better present under the tree than a previously the atoll to breed each season, including over half of the unreported Varied Thrush! world's population of Laysan Albatross. Join wildlife photographer Bob Steele as he explores the human and Heres how it works. Within established count circles of 15 natural history of this unique and fascinating place.
    [Show full text]
  • Late Pleistocene to Recent Ostracod Assemblages from the Western Black Sea Ian Boomer, Francois Guichard, Gilles Lericolais
    Late Pleistocene to recent ostracod assemblages from the western Black Sea Ian Boomer, Francois Guichard, Gilles Lericolais To cite this version: Ian Boomer, Francois Guichard, Gilles Lericolais. Late Pleistocene to recent ostracod assemblages from the western Black Sea. Journal of Micropalaeontology, Geological Society, 2010, 29 (2), pp.119- 133. 10.1144/0262-821X10-003. hal-03199895 HAL Id: hal-03199895 https://hal.archives-ouvertes.fr/hal-03199895 Submitted on 1 Jul 2021 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. Journal of Micropalaeontology, 29: 119–133. 0262-821X/10 $15.00 2010 The Micropalaeontological Society Late Pleistocene to Recent ostracod assemblages from the western Black Sea IAN BOOMER1,*, FRANCOIS GUICHARD2 & GILLES LERICOLAIS3 1School of Geography, Earth & Environmental Sciences, University of Birmingham Birmingham B15 2TT, UK 2Laboratoire des Sciences du Climat et de l’Environnement (LSCE, CEA-CNRS-UVSQ) Avenue de la Terrasse, 91198 Gif sur Yvette, France 3IFREMER, Centre de Brest, Géosciences Marines, Laboratoire Environnements Sédimentaires BP70, F-29280 Plouzané cedex, France *Corresponding author (e-mail: [email protected]) ABSTRACT – During the last glacial phase the Black Sea basin was isolated from the world’s oceans due to the lowering of global sea-levels.
    [Show full text]
  • The Joggins Cliffs of Nova Scotia: B2 the Joggins Cliffs of Nova Scotia: Lyell & Co's "Coal Age Galapagos" J.H
    GAC-MAC-CSPG-CSSS Pre-conference Field Trips A1 Contamination in the South Mountain Batholith and Port Mouton Pluton, southern Nova Scotia HALIFAX Building Bridges—across science, through time, around2005 the world D. Barrie Clarke and Saskia Erdmann A2 Salt tectonics and sedimentation in western Cape Breton Island, Nova Scotia Ian Davison and Chris Jauer A3 Glaciation and landscapes of the Halifax region, Nova Scotia Ralph Stea and John Gosse A4 Structural geology and vein arrays of lode gold deposits, Meguma terrane, Nova Scotia Rick Horne A5 Facies heterogeneity in lacustrine basins: the transtensional Moncton Basin (Mississippian) and extensional Fundy Basin (Triassic-Jurassic), New Brunswick and Nova Scotia David Keighley and David E. Brown A6 Geological setting of intrusion-related gold mineralization in southwestern New Brunswick Kathleen Thorne, Malcolm McLeod, Les Fyffe, and David Lentz A7 The Triassic-Jurassic faunal and floral transition in the Fundy Basin, Nova Scotia Paul Olsen, Jessica Whiteside, and Tim Fedak Post-conference Field Trips B1 Accretion of peri-Gondwanan terranes, northern mainland Nova Scotia Field Trip B2 and southern New Brunswick Sandra Barr, Susan Johnson, Brendan Murphy, Georgia Pe-Piper, David Piper, and Chris White The Joggins Cliffs of Nova Scotia: B2 The Joggins Cliffs of Nova Scotia: Lyell & Co's "Coal Age Galapagos" J.H. Calder, M.R. Gibling, and M.C. Rygel Lyell & Co's "Coal Age Galapagos” B3 Geology and volcanology of the Jurassic North Mountain Basalt, southern Nova Scotia Dan Kontak, Jarda Dostal,
    [Show full text]
  • Water Quality and Tree Protection Ordinance Implementation Guide
    Implementation Guide Water Quality & Tree Protection Ordinance BACKGROUND What is the definition of “earthmoving or earth-disturbing activity,” “stream”, On April 9, 2019, the Napa County Board of and “ephemeral streams or intermittent Supervisors (BOS) amended the County’s ? streams?” How do I know if I have any Conservation Regulations with the adoption of streams on my property? the Water Quality and Tree Protection Ordinance (WQTPO) to enhance requirements DEFINITIONS for stream, wetland, and municipal reservoir setbacks, and to increase tree canopy retention “Earthmoving or earth-disturbing activity” and preservation. These new requirements went means any activity that involves vegetation into effect on May 10, 2019. clearing, grading, excavation, compaction of the soil, or the creation of fills and embankments to Since 1991, the County’s Conservation prepare a site for the construction of roads, Regulations (Chapter 18.108) prohibited the structures, landscaping, new planting, and other construction of main or accessory structures, improvements (including agricultural roads, earthmoving activity, grading or removal of and vineyard avenues or tractor turnaround vegetation, or agricultural uses of land within areas necessary for ongoing agricultural required stream setbacks. With the adoption of operations). It also means excavations, fills, or the WQTPO, existing requirements were grading which of themselves constitute expanded to apply setbacks to wetlands and engineered works or improvements. ephemeral and intermittent streams. A “stream” is any of the following: The Conservation Regulations have also required minimum vegetation retention 1. A watercourse designated by a solid line or requirements within municipal water supply dash and three dots symbol on the largest watersheds. The retention requirements for scale of the United State Geological Survey vegetation canopy have been increased from maps most recently published, or any sixty to seventy percent and expanded to apply replacement to that symbol.
    [Show full text]