Rainforest Collapse Triggered Carboniferous Tetrapod Diversifi Cation in Euramerica
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Contents Part III. the LAST FIFTY THOUSAND YEARS
STATE OF MICHIGAN Insects ................................................................... 60 DEPARTMENT OF CONSERVATION Worms And Others ................................................ 61 P. J. Hoffmaster, Director The Pleasant Peninsulas .............................................62 Man and his Towns ......................................................69 THEY NEED NOT VANISH A DISCUSSION OF THE NATURAL RESOURCES In Conclusion .................................................................71 OF MICHIGAN Part III. THE LAST FIFTY THOUSAND YEARS "THE GOOD EARTH" Edited by HELEN M. MARTIN ir, sunlight, water, and soil are essential for the Acontinuance of life—plant, animal, and human life, from contributions by on the earth. Of these four basic requirements, the soil Shirley W. Allen, Geo. C. S. Benson, University of is most directly subject to the care and management of Michigan man. However, the soil has frequently been the object of man's most careless use and abuse. It is, therefore, Stannard B. Bergquist, L. R. Schoenmann, H. C. most fitting that the eminent soil scientist, A. F. Beeskaw, J. H. Kraemer, W. F. Morofsky, J. A. Porter, E. Gustafson, should begin his book on soils and soil C. Sackrider, Michigan State College management with: G. S. Mclntire, H. M. Martin, O. F. Poindexter, C. F. "During his existence upon the earth, man has depended upon Welch, Department of Conservation the soil, either directly or indirectly, for the production of the materials used by him for food and clothing and, in part, for the M. G. Adams, Stream Control Commission production of those used for fuel and shelter as well. Grains, Frank DuMond, Public Museum, Grand Rapids fruits, and vegetables that serve him as food grow directly on the soil. Cotton and flax yield materials that are made into Lynn Heatley, High School, Midland. -
RI Equisetopsida and Lycopodiopsida.Indd
IIntroductionntroduction byby FFrancisrancis UnderwoodUnderwood Rhode Island Equisetopsida, Lycopodiopsida and Isoetopsida Special Th anks to the following for giving permission for the use their images. Robbin Moran New York Botanical Garden George Yatskievych and Ann Larson Missouri Botanical Garden Jan De Laet, plantsystematics.org Th is pdf is a companion publication to Rhode Island Equisetopsida, Lycopodiopsida & Isoetopsida at among-ri-wildfl owers.org Th e Elfi n Press 2016 Introduction Formerly known as fern allies, Horsetails, Club-mosses, Fir-mosses, Spike-mosses and Quillworts are plants that have an alternate generation life-cycle similar to ferns, having both sporophyte and gametophyte stages. Equisetopsida Horsetails date from the Devonian period (416 to 359 million years ago) in earth’s history where they were trees up to 110 feet in height and helped to form the coal deposits of the Carboniferous period. Only one genus has survived to modern times (Equisetum). Horsetails Horsetails (Equisetum) have jointed stems with whorls of thin narrow leaves. In the sporophyte stage, they have a sterile and fertile form. Th ey produce only one type of spore. While the gametophytes produced from the spores appear to be plentiful, the successful reproduction of the sporophyte form is low with most Horsetails reproducing vegetatively. Lycopodiopsida Lycopodiopsida includes the clubmosses (Dendrolycopodium, Diphasiastrum, Lycopodiella, Lycopodium , Spinulum) and Fir-mosses (Huperzia) Clubmosses Clubmosses are evergreen plants that produce only microspores that develop into a gametophyte capable of producing both sperm and egg cells. Club-mosses can produce the spores either in leaf axils or at the top of their stems. Th e spore capsules form in a cone-like structures (strobili) at the top of the plants. -
Subcommission on Permian Stratigraphy International
Number 30 June 1997 A NEWSLETTER OF THE SUBCOMMISSION ON PERMIAN STRATIGRAPHY SUBCOMMISSION ON PERMIAN STRATIGRAPHY INTERNATIONAL COMMISSION ON STRATIGRAPHY INTERNATIONAL UNION OF GEOLOGICAL SCIENCES (IUGS) Table of Contents Notes from the SPS Secretary...................................................................................................................-1- Claude Spinosa Note from the SPS Chairman....................................................................................................................-2- Bruce R. Wardlaw Proposed new chronostratigraphic units for the Upper Permian ..............................................................-3- Amos Salvador Comments on Subdivisions of the Permian and a Standard World Scale ................................................-4- Neil W. Archbold and J. Mac Dickins Permian chronostratigraphic subdivisions ................................................................................................-5- Jin Yugan, Bruce R. Wardlaw, Brian F. Glenister and Galina V. Kotlyar The Permian Time-scale ...........................................................................................................................-6- J. B. Waterhouse Sequence Stratigraphy along Aidaralash Creek and the Carboniferous/Permian GSSP ..........................-8- Walter S. Snyder and Dora M. Gallegos Upper Paleozoic Fusulinacean Biostratigraphy of the Southern Urals ...................................................-11- Vladimir I. Davydov, Walter S. Snyder and Claude Spinosa Cordaitalean -
Two Stages of Late Carboniferous to Triassic Magmatism in the Strandja
Geological Magazine Two stages of Late Carboniferous to Triassic www.cambridge.org/geo magmatism in the Strandja Zone of Bulgaria and Turkey ł ń 1,2 3 1 1 Original Article Anna Sa aci ska , Ianko Gerdjikov , Ashley Gumsley , Krzysztof Szopa , David Chew4, Aleksandra Gawęda1 and Izabela Kocjan2 Cite this article: Sałacińska A, Gerdjikov I, Gumsley A, Szopa K, Chew D, Gawęda A, and 1Institute of Earth Sciences, Faculty of Natural Sciences, University of Silesia in Katowice, Będzińska 60, 41-200 Kocjan I. Two stages of Late Carboniferous to 2 3 Triassic magmatism in the Strandja Zone of Sosnowiec, Poland; Institute of Geological Sciences, Polish Academy of Sciences, Warsaw, Poland; Faculty of ‘ ’ Bulgaria and Turkey. Geological Magazine Geology and Geography, Sofia University St. Kliment Ohridski , 15 Tzar Osvoboditel Blvd., 1504 Sofia, Bulgaria 4 https://doi.org/10.1017/S0016756821000650 and Department of Geology, School of Natural Sciences, Trinity College Dublin, Dublin, Ireland Received: 9 February 2021 Abstract Revised: 3 June 2021 Accepted: 8 June 2021 Although Variscan terranes have been documented from the Balkans to the Caucasus, the southeastern portion of the Variscan Belt is not well understood. The Strandja Zone along Keywords: the border between Bulgaria and Turkey encompasses one such terrane linking the Strandja Zone; Sakar unit; U–Pb zircon dating; Izvorovo Pluton Balkanides and the Pontides. However, the evolution of this terrane, and the Late Carboniferous to Triassic granitoids within it, is poorly resolved. Here we present laser ablation Author for correspondence: – inductively coupled plasma – mass spectrometry (LA-ICP-MS) U–Pb zircon ages, coupled ł ń Anna Sa aci ska, with petrography and geochemistry from the Izvorovo Pluton within the Sakar Unit Email: [email protected] (Strandja Zone). -
The Geologic Time Scale Is the Eon
Exploring Geologic Time Poster Illustrated Teacher's Guide #35-1145 Paper #35-1146 Laminated Background Geologic Time Scale Basics The history of the Earth covers a vast expanse of time, so scientists divide it into smaller sections that are associ- ated with particular events that have occurred in the past.The approximate time range of each time span is shown on the poster.The largest time span of the geologic time scale is the eon. It is an indefinitely long period of time that contains at least two eras. Geologic time is divided into two eons.The more ancient eon is called the Precambrian, and the more recent is the Phanerozoic. Each eon is subdivided into smaller spans called eras.The Precambrian eon is divided from most ancient into the Hadean era, Archean era, and Proterozoic era. See Figure 1. Precambrian Eon Proterozoic Era 2500 - 550 million years ago Archaean Era 3800 - 2500 million years ago Hadean Era 4600 - 3800 million years ago Figure 1. Eras of the Precambrian Eon Single-celled and simple multicelled organisms first developed during the Precambrian eon. There are many fos- sils from this time because the sea-dwelling creatures were trapped in sediments and preserved. The Phanerozoic eon is subdivided into three eras – the Paleozoic era, Mesozoic era, and Cenozoic era. An era is often divided into several smaller time spans called periods. For example, the Paleozoic era is divided into the Cambrian, Ordovician, Silurian, Devonian, Carboniferous,and Permian periods. Paleozoic Era Permian Period 300 - 250 million years ago Carboniferous Period 350 - 300 million years ago Devonian Period 400 - 350 million years ago Silurian Period 450 - 400 million years ago Ordovician Period 500 - 450 million years ago Cambrian Period 550 - 500 million years ago Figure 2. -
Pennsylvanian Boundary Unconformity in Marine Carbonate Successions
University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Dissertations & Theses in Earth and Atmospheric Earth and Atmospheric Sciences, Department of Sciences Summer 6-2014 ORIGIN AND DISTRIBUTION OF THE MISSISSIPPIAN – PENNSYLVANIAN BOUNDARY UNCONFORMITY IN MARINE CARBONATE SUCCESSIONS WITH A CASE STUDY OF THE KARST DEVELOPMENT ATOP THE MADISON FORMATION IN THE BIGHORN BASIN, WYOMING. Lucien Nana Yobo University of Nebraska-Lincoln, [email protected] Follow this and additional works at: http://digitalcommons.unl.edu/geoscidiss Part of the Geochemistry Commons, Geology Commons, Sedimentology Commons, and the Stratigraphy Commons Nana Yobo, Lucien, "ORIGIN AND DISTRIBUTION OF THE MISSISSIPPIAN – PENNSYLVANIAN BOUNDARY UNCONFORMITY IN MARINE CARBONATE SUCCESSIONS WITH A CASE STUDY OF THE KARST DEVELOPMENT ATOP THE MADISON FORMATION IN THE BIGHORN BASIN, WYOMING." (2014). Dissertations & Theses in Earth and Atmospheric Sciences. 59. http://digitalcommons.unl.edu/geoscidiss/59 This Article is brought to you for free and open access by the Earth and Atmospheric Sciences, Department of at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Dissertations & Theses in Earth and Atmospheric Sciences by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. ORIGIN AND DISTRIBUTION OF THE MISSISSIPPIAN – PENNSYLVANIAN BOUNDARY UNCONFORMITY IN MARINE CARBONATE SUCCESSIONS WITH A CASE STUDY OF THE KARST DEVELOPMENT ATOP THE MADISON FORMATION IN THE BIGHORN BASIN, WYOMING. By Luscalors Lucien Nana Yobo A THESIS Presented to the Faculty of The Graduate College at the University of Nebraska In Partial Fulfillment of Requirements For the Degree of Master of Science Major: Earth and Atmospheric Sciences Under the Supervision of Professor Tracy D. -
Tournaisian and Viséan Lophophyllum of Gorskiy (1932)
Geologos 23, 3 (2017): 215–221 doi: 10.1515/logos-2017-0022 Tournaisian and Viséan Lophophyllum of Gorskiy (1932) from the Kirghiz Steppe and a possible ancestor of a new Bashkirian rugose coral genus from the Donets Basin (Ukraine) Jerzy Fedorowski Institute of Geology, Adam Mickiewicz University, Bogumiła Krygowskiego 12, 61-680 Poznań, Poland; e-mail: [email protected] Abstract All specimens assigned by Gorskiy (1932) to the genus Lophophyllum Milne Edwards and Haime, 1850 are revised, rede- scribed and reillustrated. The corallite identified by him as a second, specifically indeterminate species ofLophophyllum is here questionably included in Amygdalophyllum Dun and Benson, 1920. For the reminding specimens two new, un- named genera are suggested. ”Lophophyllum” subtortuosum Gorskiy, 1932 belongs to a new, non-dissepimented genus of an unknown family. A possible relationship between gen. nov. 1, sp. nov. 1 and the new Bashkirian genus from the Donets Basin (Ukraine) is proposed. Key words: Kyrgyzstan, “Lophophyllum”, Rugosa, Lower Carboniferous, revision 1. Introduction applied by him cannot be adopted without revision. In addition, his conclusions concerning the relation- The rugose corals redescribed in the present note ships of the Kirghiz Steppe coral fauna cannot be ac- form a small part of the diversified coral fauna cepted without such a revision. The close similarity described by Gorskiy (1932) from the Devonian/ or relationship of the coral fauna from the Kirghiz Carboniferous passage beds and from Tournaisian Steppe to corals from the United States mentioned to lower Viséan strata of the Kirghiz Steppe of the by Gorskiy (1932, p. 58) is particularly doubtful. -
Chians in Nova Scotia,. by J. \V. DAWSON, LL.D., F.R.S
440 Dawson-New Oarboniferous Batmchians of Nova Scotia. ART. XLVIII.-On a Recent Di~covery of Oarbo?Jifero1.l.s Batra chians in Nova Scotia,. by J. \V. DAWSON, LL.D., F.R.S. 1. General Remarks. THE erect Sigillarire enclosed in the f!andstone overlying coal-group 15 of Section XV, Division 4 of the SOIl.th Joggins section, are perhaps the most remarkable repositories ever dis covered of the remains of Paleozoic land animals. As I have shown in discussing their character in my memoirs on the South Joggins Coal FOl'mation,* and my "Acadian Geology," some of these trees became em bedded in sandy deposits, and being rendered hollow by decay of their inner bark and the crumbling of their woody axes, remained for a long time as open holes or pits, gradually filling with vegetable debris and the wash of rains and land floods. They thus became places of habitation for land snails and millepedes, and pit-falls into which the smaller batrachians, prowling for prey among the undergrowth of the coal forest, fell and were unable to extri cate themselves. In this way the successive layers of deposit became stored with skeletons of batrachians which they have retained in an admirable st.ate of preservation. Onlrone sandstone at the Joggins is known to contain these reptiliferous trees, though erect Sigillarire are known at. more than sixty different levels, and many of these erect stumps have been broken up in the hope of making such discoveries. In the past summer, however, shells of Pupa vetustu were found bv Mr. -
(Foram in Ifers, Algae) and Stratigraphy, Carboniferous
MicropaIeontoIogicaI Zonation (Foramin ifers, Algae) and Stratigraphy, Carboniferous Peratrovich Formation, Southeastern Alaska By BERNARD L. MAMET, SYLVIE PINARD, and AUGUSTUS K. ARMSTRONG U.S. GEOLOGICAL SURVEY BULLETIN 2031 U.S. DEPARTMENT OF THE INTERIOR BRUCE BABBITT, Secretary U.S. GEOLOGICAL SURVEY Robert M. Hirsch, Acting 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 Text and illustrations edited by Mary Lou Callas Line drawings prepared by B.L. Mamet and Stephen Scott Layout and design by Lisa Baserga UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1993 For sale by Book and Open-File Report Sales U.S. Geological Survey Federal Center, Box 25286 Denver, CO 80225 Library of Congress Cataloging in Publication Data Mamet, Bernard L. Micropaleontological zonation (foraminifers, algae) and stratigraphy, Carboniferous Peratrovich Formation, southeastern Alaska / by Bernard L. Mamet, Sylvie Pinard, and Augustus K. Armstrong. p. cm.-(U.S. Geological Survey bulletin ; 2031) Includes bibtiographical references. 1. Geology, Stratigraphic-Carboniferous. 2. Geology-Alaska-Prince of Wales Island. 3. Foraminifera, Fossil-Alaska-Prince of Wales Island. 4. Algae, Fossil-Alaska-Prince of Wales Island. 5. Paleontology- Carboniferous. 6. Paleontology-Alaska-Prince of Wales Island. I. Pinard, Sylvie. II. Armstrong, Augustus K. Ill. Title. IV. Series. QE75.B9 no. 2031 [QE671I 557.3 s--dc20 [551.7'5'097982] 92-32905 CIP CONTENTS Abstract -
Devonian and Carboniferous Stratigraphical Correlation and Interpretation in the Central North Sea, Quadrants 25 – 44
CR/16/032; Final Last modified: 2016/05/29 11:43 Devonian and Carboniferous stratigraphical correlation and interpretation in the Orcadian area, Central North Sea, Quadrants 7 - 22 Energy and Marine Geoscience Programme Commissioned Report CR/16/032 CR/16/032; Final Last modified: 2016/05/29 11:43 CR/16/032; Final Last modified: 2016/05/29 11:43 BRITISH GEOLOGICAL SURVEY ENERGY AND MARINE GEOSCIENCE PROGRAMME COMMERCIAL REPORT CR/16/032 Devonian and Carboniferous stratigraphical correlation and interpretation in the Orcadian area, Central North Sea, Quadrants 7 - 22 K. Whitbread and T. Kearsey The National Grid and other Ordnance Survey data © Crown Copyright and database rights Contributor 2016. Ordnance Survey Licence No. 100021290 EUL. N. Smith Keywords Report; Stratigraphy, Carboniferous, Devonian, Central North Sea. Bibliographical reference WHITBREAD, K AND KEARSEY, T 2016. Devonian and Carboniferous stratigraphical correlation and interpretation in the Orcadian area, Central North Sea, Quadrants 7 - 22. British Geological Survey Commissioned Report, CR/16/032. 74pp. Copyright in materials derived from the British Geological Survey’s work is owned by the Natural Environment Research Council (NERC) and/or the authority that commissioned the work. You may not copy or adapt this publication without first obtaining permission. Contact the BGS Intellectual Property Rights Section, British Geological Survey, Keyworth, e-mail [email protected]. You may quote extracts of a reasonable length without prior permission, provided a full acknowledgement -
Northern England Serpukhovian (Early Namurian)
1 Northern England Serpukhovian (early Namurian) 2 farfield responses to southern hemisphere glaciation 3 M.H. STEPHENSON1, L. ANGIOLINI2, P. CÓZAR3, F. JADOUL2, M.J. LENG4, D. 4 MILLWARD5, S. CHENERY1 5 1British Geological Survey, Keyworth, Nottingham, NG12 5GG, United Kingdom 6 2Dipartimento di Scienze della Terra "A. Desio", Università degli Studi di Milano, Via 7 Mangiagalli 34, Milano, 20133, Italy 8 3Instituto de Geología Económica CSIC-UCM; Facultad de Ciencias Geológicas; 9 Departamento de Paleontología; C./ José Antonio Novais 228040-Madrid; Spain 10 4NERC Isotope Geosciences Laboratory, British Geological Survey, Keyworth, 11 Nottingham, NG12 5GG, United Kingdom 12 5British Geological Survey, Murchison House, Edinburgh, United Kingdom 13 14 15 Word count 7967 16 7 figs 17 1 table 18 67 references 19 RUNNING HEADER: NAMURIAN FARFIELD GLACIATION REPONSE 1 20 Abstract: During the Serpukhovian (early Namurian) icehouse conditions were initiated 21 in the southern hemisphere; however nearfield evidence is inconsistent: glaciation 22 appears to have started in limited areas of eastern Australia in the earliest Serpukhovian, 23 followed by a long interglacial, whereas data from South America and Tibet suggest 24 glaciation throughout the Serpukhovian. New farfield data from the Woodland, 25 Throckley and Rowlands Gill boreholes in northern England allow this inconsistency to 26 be addressed. δ18O from well-preserved late Serpukhovian (late Pendleian to early 27 Arnsbergian) Woodland brachiopods vary between –3.4 and –6.3‰, and δ13C varies 28 between –2.0 and +3.2‰, suggesting a δ18O seawater (w) value of around –1.8‰ 29 VSMOW, and therefore an absence of widespread ice-caps. The organic carbon δ13C 30 upward increasing trend in the Throckley Borehole (Serpukhovian to Bashkirian; c. -
Sequence Biostratigraphy of Carboniferous-Permian Boundary
Brigham Young University BYU ScholarsArchive Theses and Dissertations 2019-07-01 Sequence Biostratigraphy of Carboniferous-Permian Boundary Strata in Western Utah: Deciphering Eustatic and Tectonic Controls on Sedimentation in the Antler-Sonoma Distal Foreland Basin Joshua Kerst Meibos Brigham Young University Follow this and additional works at: https://scholarsarchive.byu.edu/etd Part of the Physical Sciences and Mathematics Commons BYU ScholarsArchive Citation Meibos, Joshua Kerst, "Sequence Biostratigraphy of Carboniferous-Permian Boundary Strata in Western Utah: Deciphering Eustatic and Tectonic Controls on Sedimentation in the Antler-Sonoma Distal Foreland Basin" (2019). Theses and Dissertations. 7583. https://scholarsarchive.byu.edu/etd/7583 This Thesis is brought to you for free and open access by BYU ScholarsArchive. It has been accepted for inclusion in Theses and Dissertations by an authorized administrator of BYU ScholarsArchive. For more information, please contact [email protected], [email protected]. Sequence Biostratigraphy of Carboniferous-Permian Boundary Strata in Western Utah: Deciphering Eustatic and Tectonic Controls on Sedimentation in the Antler-Sonoma Distal Foreland Basin Joshua Kerst Meibos A thesis submitted to the faculty of Brigham Young University in partial fulfillment of the requirements for the degree of Master of Science Scott M. Ritter, Chair Brooks B. Britt Sam Hudson Department of Geological Sciences Brigham Young University Copyright © 2019 Joshua Kerst Meibos All Rights Reserved ABSTRACT Sequence Biostratigraphy of Carboniferous-Permian Boundary Strata in Western Utah: Deciphering Eustatic and Tectonic Controls on Sedimentation in the Antler-Sonoma Distal Foreland Basin Joshua Kerst Meibos Department of Geological Sciences, BYU Master of Science The stratal architecture of the upper Ely Limestone and Mormon Gap Formation (Pennsylvanian-early Permian) in western Utah reflects the interaction of icehouse sea-level change and tectonic activity in the distal Antler-Sonoma foreland basin.