The Professional Geologist JAN/FEB 2012
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Triassic- Jurassic Stratigraphy Of
Triassic- Jurassic Stratigraphy of the <JF C7 JL / Culpfeper and B arbour sville Basins, VirginiaC7 and Maryland/ ll.S. PAPER Triassic-Jurassic Stratigraphy of the Culpeper and Barboursville Basins, Virginia and Maryland By K.Y. LEE and AJ. FROELICH U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 1472 A clarification of the Triassic--Jurassic stratigraphic sequences, sedimentation, and depositional environments UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON: 1989 DEPARTMENT OF THE INTERIOR MANUEL LUJAN, Jr., Secretary U.S. GEOLOGICAL SURVEY Dallas L. Peck, Director Any use of trade, product, or firm names in this publication is for descriptive purposes only and does not imply endorsement by the U.S. Government Library of Congress Cataloging in Publication Data Lee, K.Y. Triassic-Jurassic stratigraphy of the Culpeper and Barboursville basins, Virginia and Maryland. (U.S. Geological Survey professional paper ; 1472) Bibliography: p. Supt. of Docs. no. : I 19.16:1472 1. Geology, Stratigraphic Triassic. 2. Geology, Stratigraphic Jurassic. 3. Geology Culpeper Basin (Va. and Md.) 4. Geology Virginia Barboursville Basin. I. Froelich, A.J. (Albert Joseph), 1929- II. Title. III. Series. QE676.L44 1989 551.7'62'09755 87-600318 For sale by the Books and Open-File Reports Section, U.S. Geological Survey, Federal Center, Box 25425, Denver, CO 80225 CONTENTS Page Page Abstract.......................................................................................................... 1 Stratigraphy Continued Introduction... .......................................................................................... -
Lancaster County Geology
LancasterLancaster CountyCounty GeologyGeology gfgh µ OverOver TopographicTopographic ReliefRelief Om Miles Í897 0 10 hg Lebanon County Adamstown ¦¨§76 ! Berks County Oha ! Oo Denver ab322 Ephrata Csc Í501 ! Í72 TRh 272 TRn Oco Lititz Í ! Akron Elizabethtown Manheim ! Dauphin County! ! TRhc Cr TRs c Os Rn ! T Terre Hill TRg Trd 322 772 ab 10 Í 222 625 Í ab Í897 Í Í283 Ohm Í230 Oan Í241 East New Holland Oe 722 Petersburg Í Cbs ! Mount Joy ! ! Czc Cch Í23 Cm gga fl R 743 T Í Csb gg pg ggd Í441 Ck Cl 772 72 Í 23 Í ! Í Ca Marietta Ch Lancaster Mountville ! 340 ! Í Columbia 30 ! ! ba Í462 Í462 ab30 Í999 Millersville Ccc Strasburg ! ! Cv Í741 Í741 Í272 41 Í County Chester 896 222 Í gn Christiana ba mg ! oct Cah Í372 S u sq u e h a n n a R iv e r Y o rk C o u n ty gqm LEGEND COUNTY BOUNDARIES Í324 Source: Lancaster County GIS, Copyright (c) 2019 MAJOR ROADS This map to be used for reference or illustrative purposes only. This map FAULT is not a legally recorded plan, survey, or engineering schematic Quarryville and it is not intended to be used as such. For complete disclaimer see: RIVERS AND STREAMS ! http://www.co.lancaster.pa.us/gisdisclaimer DIKE wc ORDOVICIAN Í472 Oan, ANNVILLE FORMATION LIMESTONE TRIASSIC 372 Oco, COCALICO FORMATION DARK GRAY SHALE TRfl, LIMESTONE FANGLOMERATE Í TRg, GETTYSBURG FORMATION SHALE-SANDSTONE Oe, EPLER FORMATION LIMESTONE TRh, HAMMER CREEK FORMATION SANDSTONE-SHALE Oha, ANNVILLE, HERSHEY, AND MYERSTOWN FORMATION TRhc, HAMMER CREEK QUARTZ-CONGLOMERATE Ohm, HERSHEY AND MYERSTOWN FORMATION LIMESTONE 272 TRn, NEW -
Gettysburg National Military Park & Eisenhower National Historic Site
National Park Service U.S. Department of the Interior Natural Resource Program Center Gettysburg National Military Park & Eisenhower National Historic Site Geologic Resources Inventory Report Natural Resource Report NPS/NRPC/GRD/NRR—2009/083 THIS PAGE: North Carolina State Monument (NPS Photo) ON THE COVER: Gettysburg NMP, looking toward Cemetery Ridge Cover photo by Bill Dowling, courtesy of the Gettysburg Foundation Gettysburg National Military Park and Eisenhower National Historic Site Geologic Resources Inventory Report Natural Resource Report NPS/NRPC/GRD/NRR—2009/083 Geologic Resources Division Natural Resource Program Center P.O. Box 25287 Denver, Colorado 80225 March 2009 U.S. Department of the Interior National Park Service Natural Resource Program Center Denver, Colorado The Natural Resource Publication series addresses natural resource topics that are of interest and applicability to a broad readership in the National Park Service and to others in the management of natural resources, including the scientific community, the public, and the NPS conservation and environmental constituencies. Manuscripts are peer-reviewed to ensure that the information is scientifically credible, technically accurate, appropriately written for the intended audience, and is designed and published in a professional manner. Natural Resource Reports are the designated medium for disseminating high priority, current natural resource management information with managerial application. The series targets a general, diverse audience, and may contain NPS policy considerations or address sensitive issues of management applicability. Examples of the diverse array of reports published in this series include vital signs monitoring plans; "how to" resource management papers; proceedings of resource management workshops or conferences; annual reports of resource programs or divisions of the Natural Resource Program Center; resource action plans; fact sheets; and regularly-published newsletters. -
The Microstratigraphy of the Roseland Quarry (Early Jurassic, Newark Supergroup, New Jersey)
The Microstratigraphy of the Roseland Quarry (Early Jurassic, Newark Supergroup, New Jersey) Paul Eric Olsen 1975 Open File Report, Essex County Park Commission, Newark, New Jersey Preface This paper is the first step in presentation of information resulting from seven years of work on the Roseland Quarry. During this time I have received help from many people, especially Dr. John Ostrom, Dr. Keith Thornson, Dr. Carl Waage, Dr. John Rogers, Dr, Donald Baird, Dr. Bobb Schaeffer, Bruce Cornet, Tony Lessa, Robert Salkin, the Essex County Park Commission, and the Walter Kidde & Company 1nc.I would also like to thank Stan Rachootin for reading the manuscript and supplying many helpful suggestions which substantially improved it. INTRODUCTION 1.1 Area of Study The Roseland Quarry is a 55 acre exposure of surficial deposits and bedrock originally excavated for fill. It is located at the northern tip of Riker Hill in the Borough of Roseland, Essex County, New Jersey (figure 1). The numerous and well preserved dinosaur footprints found in the Roseland . Quarry interest scientists and the public alike. For this reason, the owners, Walter Kidde and Company, Inc., will donate part of th5s area (see figure 9) to the Essex County Park Commission to be developed as an educational park. 1.2 Purpose "As it is not in human record but in natural history, that we are to look for the means of ascertaining what has already been, it is here proposed to examine the appearence of the earth in order to be informed of operations which have been transacted in the past. -
Digging up Dirt How Paleontologists Bring Dinosaurs Backto Life
News for Schools from the Smithsonian Institution. Office of Elementary and Secondary Education. Washington, D.C. 20560 April 1992 Digging Up Dirt How Paleontologists Bring Dinosaurs Backto Life Each year, thousands of visitors stroll through red mudstone about six dinosaur exhibits in museums across the country. They feet wide and three feet crane their necks to see the top of Brachiosaurus's deep. They theorized that skeleton and marvel at the ferocious look of the red mudstone bowl Tyrannosaurus rex. Adult visitors try to comprehend could have been a nest for the passage of time when it's counted in hundreds of the babies. It looked as if it millions of years instead of hours. Dinosaurs make had been made by the adults think about evolutionary change and abrupt babies' mother who had extinction; they wonder what the dinosaurs' mounded up the earth and experience on earth can teach us. scooped out the middle. Rather than being merely curious, children are They believed the green passionate about dinosaurs. They gaze at the huge mudstone had filled the skeletons, imagining a landscape that could hold such nest during the many creatures. They read and mouth the difficult-to millions of years since the pronounce dinosaur names. Children possess babies had died. encyclopedic knowledge about dinosaurs. Any teacher When Horner finished who has studied dinosaurs with a class has been digging through the small corrected by a ten-year-old expert. "Actually, Ms. mound, he had found the Miller, since the 1970s, Iguanodon has been depicted remains of 15 three-foot with the tall aloft." Children are fascinated by the long baby dinosaurs. -
(GIS) Study of Triassic Vertebrate Biochronology
Geol. Mag. 142 (4), 2005, pp. 327–354. c 2005 Cambridge University Press 327 doi:10.1017/S001675680500083X Printed in the United Kingdom A Geographical Information System (GIS) study of Triassic vertebrate biochronology ∗ E. J. RAYFIELD ,P.M.BARRETT†,R.A.MCDONNELL‡ & K. J. WILLIS‡ ∗Department of Earth Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EQ, UK †Department of Palaeontology, The Natural History Museum, Cromwell Road, London SW7 5BD, UK ‡School of Geography and the Environment, University of Oxford, Mansfield Road, Oxford OX1 3TB, UK (Received 17 June 2004; accepted 10 February 2005) Abstract – Geographical Information Systems (GIS) have been applied extensively to analyse spatial data relating to varied environmental issues, but have not so far been used to address biostratigraphical or macroevolutionary questions over extended spatial and temporal scales. Here, we use GIS techniques to test the stability, validity and utility of proposed Middle and Late Triassic ‘Land Vertebrate Faunachrons’ (LVFs), a global biostratigraphical framework based upon terrestrial/freshwater tetrapod occurrences. A database of tetrapod and megafloral localities was constructed for North America and Western Europe that also incorporated information on relevant palaeoenvironmental variables. This database was subjected to various spatial analysis techniques. Our GIS analysis found support at a global level for Eocyclotosaurus as an Anisian index taxon and probably Aetosaurus as a Norian indicator. Other tetrapod taxa are useful biostratigraphical/biochronological markers on a regional basis, such as Longosuchus and Doswellia for Late Carnian time. Other potential index fossils are hampered, however, by taxonomic instability (Mastodonsaurus, Metoposaurus, Typothorax, Paleorhinus, Pseudopalatus, Redondasaurus, Redondasuchus) and/or are not clearly restricted in temporal distribution (Paleorhinus, Angistorhinus, Stagonolepis, Metoposaurus and Rutiodon). -
Fulton Site Within the Gettysburg Basin Maria Eugenia Leone Geology 394 H Thomas Holtz, John Merck, Richard Fulton, and Robert Weems
Correlating the Fulton Site within the Gettysburg Basin Maria Eugenia Leone Geology 394 H Thomas Holtz, John Merck, Richard Fulton, and Robert Weems Fossil 199.6 Ma Ranges Abstract Methods and Data Fossils Rhaetian The age obtained for the site using the above fossil material The Fulton Site, a recently discovered fossil locality, lies within the Gettysburg Methods included using a Brunton com- Paleoenvironment Paleoenvironment is between the Carnian and the Norian. The conchostracan data 203 Ma Basin in the Newark Supergroup. Though this site has produced several vertebrate and pass and a Jacob’s staff to measure the sec- 52 gave a Mid-Carnian age (Kozur and Weems 2007), but is in need invertebrate trace and body fossils, it has not been correlated stratigraphically. There are currently two leading tion. Layers were examined for sedimentary hypotheses on the lithostratigraphic position of the Fulton Site. The first is that the site is the New Oxford Forma- 25 50 of further analysis (Lucas and Tanner 2007). On a seperate note, a structures and fossils. Hand samples were small piece of eroded vertebrate bone was discovered in the tion (a fluvial unit), and the second is that it is the Gettysburg Formation (a lacustrine unit). Another issue is of Late Norian age, which has been confused with lithostratigraphy in the past. The hypotheses that are independently tested in analyzed for grain size and shape, color, and float of the site. No analysis has been completed on this bone. this study are that the site lies in the New Oxford Formation and that it is Carnian in age. -
Stratigraphic Nomenclature of the Newark Supergroup of Eastern North America
Stratigraphic Nomenclature of the Newark Supergroup of Eastern North America U.S. GEOLOGICAL SURVEY BULLETIN 1572 Stratigraphic Nomenclature of the Newark Supergroup of Eastern North America By GWENDOLYN W. LUTTRELL U. S. G E 0 L 0 G I C A L S U R V E Y B U L L E T I N 1 5 7 2 A lexicon and correlation chart of Newark Supergroup stratigraphic nomenclature, including a review of the origin and characteristics of the early Mesozoic basins of eastern North America UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON: 1989 DEPARTMENT OF THE INTERIOR MANUEL LUJAN, Jr., Secretary U.S. GEOLOGICAL SURVEY Dallas L. Peck, Director Any use of trade, product, or firm names in this publication is for descriptive purposes only and does not imply endorsement by the U.S. Government Library of Congress Cataloging in Publication Data Luttrell, Gwendolyn Lewise Werth, 1927- Stratigraphic nomenclature of the Newark Supergroup of eastern North America. (U.S. Geological Survey bulletin ; 1572) Bibliography: p. Supt. of Docs. no. : I 19.3:1572 1. Geology, Stratigraphic-Triassic-Nomenclature. 2. Geology, Stratigraphic-Jurassic-Nomenclature. 3. Geology, Stratigraphic Nomenclature-North America. I. Title. II. Series. QE75.B9 no. 1572 [QE676] 557.3 s 88-600291 [551. 7'6'097] For sale by the Books and Open-File Reports Section U.S. Geological Survey, Federal Center, Box 25425, Denver, CO 80225 CONTENTS Page Abstract............................................................................. 1 Introduction........................................................................ 1 Exposed Basins . 2 Descriptions of the Exposed Basins . 6 Deep River Basin . 6 Crow burg Basin . 7 Wadesboro Basin . 8 Ellerbe Basin . 8 Sanford Basin . -
6 the Ichnogenus Atreipus and Its Significance for Triassic Biostratig Raphy
6 The ichnogenus Atreipus and its significance for Triassic biostratig raphy PAUL E. OLSEN AND DONALD BAIRD Introduction We begin by describing the morphology and Reptile footprint faunules from the early Me systematics of the new form and follow with a dis sozoic Newark Supergroup of eastern North Amer cussion of its biostratigraphic significance. Detailed ica (Fig. 6.1) have been studied since the the early locality and stratigraphic information for the mate 1800s. Most are from the Hartford and Deerfield rial discussed in the systematic section is given in the basins of the Connecticut Valley; thanks to many biostratigraphic section. Finally, we attempt to re works, particularly those of E. Hitchcock ( 1836, construct the osteology of the ichnites and try to find 1843, 1847, 1858, 1865) and Lull (1904, 1915, 1953), a likely trackmaker among known osteological taxa. the Connecticut Valley faunules are relatively well known (although now desperately in need of revi Materials and methods sion). Long thought to be of Late Triassic age, all All of the specimens described in this chapter of the Connecticut Valley tracks come from strata are footprints, either natural casts or natural molds, above the oldest extrusive basalt flows in the Hart not actual osseous remains of animals. We use the ford and Deerfield basins and are now thought to traditional latinized binominals for the track taxa, be Early Jurassic in age. Similar Early Jurassic faun but the taxonomy is one parallel to that of the bi ules have been more recently identified in the New ological Linnaean hierarchy, not part of it. -
A Revision of the Parainfraclass Archosauria Cope, 1869, Excluding the Advanced Crocodylia
^ARThS SOEWCES USHAH1 A Revision of the Parainfraclass Archosauria Cope, 1869, Excluding the Advanced Crocodylia George Olshevsky Mesozoic Meanderings #2 Published by: George Olshevsky Publications Requiring Research Post Office Box 16924 San Diego, California 92176-6924 Price: $20.00 First printing (October 24, 19i>l): 100 copies, of which this is # /C / Signed by author: j>r £Vr Contents PREFACE 1 Parasuborder: Erythrosuchia Bonaparte, Acknowledgments 3 1982 40 Technical Review 4 Parafamily: Erythrosuchidae INTRODUCTION 5 Watson, 1917 40 Materials and Methods 6 Parasuborder Rauisuchia How To Use This List: Conventions 7 Bonaparte, 1982 41 TAXONOMIC CONSIDERATIONS 13 Family: Rauisuchidae The Problems of Cladistic von Huene, 1942 41 Classifications 14 Rauisuchia incertae sedis 42 Linnaean Taxa at the Ordinal Level .. .19 Suborder Poposauria nov. 43 New Subfamilial Taxa 21 Family: Teratosauridae Cope, 1871 ... 43 ARCHOSAUR PHYLOGENY 25 Pseudosuchia incertae sedis 44 Defining Archosaurs 26 Family: Ctenosauriscidae Early Archosaurs 28 Kuhn, 1964 44 Thecodontian Orders 29 Family: Teleocrateridae Romer, 1966 .. 44 Superorder: THECODONTU Owen, 1859 . 31 Order: PARASUCHIA Huxley, 1875 44 Paraorder: PROTEROSUCHIA Family: Parasuchidae Lydekker, 1885 .44 Broom, 1906 37 Order: AETOSAURIA Family: Mesenosauridae Nicholson & Lydekker, 1889 49 Romer, 1956 37 Family: Stagonolepididae Family: Proterosuchidae Lydekker, July 1887 49 von Huene, 1914 37 Aetosauria incertae sedis 50 Proterosuchia incertae sedis 38 Order: CROCODYLIA Gmelin, 1788 .... 50 Order: ORNITHOSUCHIA Suborder Trialestia Crush, 1984 51 Bonaparte, 1971 38 Family: Trialestidae Bonaparte, 1982 .. 51 Parafamily: Euparkeriidae Suborder: Sphenosuchia von Huene, 1920 38 Bonaparte, 1971 51 Family: Erpetosuchidae Family: Pedeticosauridae Watson, 1917 38 van Hoepen, 1915 51 Family: Ornithosuchidae Family: Hemiprotosuchidae von Huene, 1908 38 Crush, 1984 51 Order: PSEUDOSUCHIA Family: Sphenosuchidae Zittel, 1887-90 39 von Huene, 1922 51 Suborder: Arcfaaeosuchia SilL 1967 39 Family: Lewisuchidae nov. -
'FRANCOSUCHUS' TRAUTHI IS NOT PALEORHINUS: IMPLICATIONS for LATE TRIASSIC VERTEBRATE BIOSTRATIGRAPHY Author(S): RICHARD J
'FRANCOSUCHUS' TRAUTHI IS NOT PALEORHINUS: IMPLICATIONS FOR LATE TRIASSIC VERTEBRATE BIOSTRATIGRAPHY Author(s): RICHARD J. BUTLER Source: Journal of Vertebrate Paleontology, Vol. 33, No. 4 (July 2013), pp. 858-864 Published by: Taylor & Francis, Ltd. on behalf of The Society of Vertebrate Paleontology Stable URL: https://www.jstor.org/stable/42568654 Accessed: 08-07-2021 12:05 UTC REFERENCES Linked references are available on JSTOR for this article: https://www.jstor.org/stable/42568654?seq=1&cid=pdf-reference#references_tab_contents You may need to log in to JSTOR to access the linked references. JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact [email protected]. Your use of the JSTOR archive indicates your acceptance of the Terms & Conditions of Use, available at https://about.jstor.org/terms Taylor & Francis, Ltd., The Society of Vertebrate Paleontology are collaborating with JSTOR to digitize, preserve and extend access to Journal of Vertebrate Paleontology This content downloaded from 86.59.13.237 on Thu, 08 Jul 2021 12:05:59 UTC All use subject to https://about.jstor.org/terms Journal of Vertebrate Paleontology 33(4):858- 864, July 2013 © 2013 by the Society of Vertebrate Paleontology ARTICLE 'FRANCOS U CHUS' TRAUTHI IS NOT PALEORHINUS : IMPLICATIONS FOR LATE TRIASSIC VERTEBRATE BIOSTRATIGRAPHY RICHARD J. BUTLER GeoBio-Center, Ludwig-Maximilians-Universität München, Richard- Wagner-Straße 10, D-80333 Munich, Germany, [email protected] ABSTRACT - A rostrum fragment from the marginal marine upper Lunz Formation of Austria (early Late Triassic: late Carnian) was previously identified as a new species of phytosaurian archosauriform, ' Francosuchus' trauthi. -
The Late Triassic Timescale: Age and Correlation of the Carnian–Norian Boundary
Archived version from NCDOCKS Institutional Repository http://libres.uncg.edu/ir/asu/ The Late Triassic timescale: Age and correlation of the Carnian–Norian boundary By: A.B. Heckert, S.G. Lucas, L.H. Tanner, H.W. Kozur, & R.E. Weems Abstract The Late Triassic timescale is poorly constrained due largely to the dearth of reliable radio-isotopic ages that can be related precisely to biostratigraphy combined with evident contradictions between bio-stratigraphic and magnetostratigraphic correlations. These problems are most apparent with regard to the age and correlation of the Carnian–Norian boundary (base of the Norian Stage). We review the available age data pertaining to the Carnian– Norian boundary and conclude that the “long Norian” in current use by many workers, which places the Carnian– Norian boundary at ~228 Ma, is incorrect. The evidence supports a Norian stage that is much shorter than proposed by these workers, so the Carnian–Norian boundary is considerably younger than this, close to 220 Ma in age. Critical to this conclusion is the correlation of the Carnian–Norian boundary in nonmarine strata of Europe and North America, and its integration with existing radioisotopic ages and magnet-ostratigraphy. Three bio- stratigraphic datasets (palynomorphs, conchostracans and tetra-pods) reliably identify the same position for the Carnian–Norian boundary (within normal limits of bio-stratigraphic resolution) in nonmarine strata of the Chinle Group (American Southwest), Newark Supergroup (eastern USA–Canada) and the German Keuper. These biostratigraphic datasets place the Carnian–Norian boundary at the base of the Warford Member of the lower Passaic Formation in the Newark Basin, and, as was widely accepted prior to 2002, this correlates the base of the Norian to a horizon within Newark magnet-ozone E13n.