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University Microfilms International 300 North Zeeb Road Ann Arbor, Michigan 48106 USA St. John's Road, Tyler's Green High Wycombe, Bucks, England HP10 8HR 78-12,348 JACOBSON, Stephen Richard, 1944- ACRITARCHS FROM MIDDLE AND UPPER ORDOVICIAN ROCKS IN NEW YORK STATE AND THE CINCINNATI REGION IN OHIO AND KENTUCKY. The Ohio State University, Ph.D., 1978 Geology University Microfilms International, Ann Arbor, Michigan 48ioe © 1978 STEPHEN RICHARD JACOBSON ALL RIGHTS RESERVED ACRITARCHS FROM MIDDLE AND UPPER ORDOVICIAN ROCKS IN NEW YORK STATE AND THE CINCINNATI REGION IN OHIO AND KENTUCKY DISSERTATION Presented in Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy in the Graduate School of the Ohio State University BY Stephen Richard Jacobson, B.S., M.A. ***** The Ohio State University 1978 Reading Committee Approved by Stig M. Bergstrilm James M. Schopf James W. Collinson ft. j^^Zdl Adviser Department of Geology & Mineralogy ACKNOWLEDGEMENTS Dr. Stig M. BergstrHm suggested this project and supplied con fidence, inspiration, enthusiasm, patience, and funding while serving as supervisor. His care and time provided for discussion, field work, and editing have made this a better work. Dr. James M. Schopf, who with his wife Esther filled so many voids for me, shared, through countless discussions, their experiences, inr sights, and methods and thereby enriched my approach to Science. Dr. James W. Collinson read the manuscript and offered helpful suggestions at various stages of its preparation. Dr. Walter C. Sweet has offered time and discussion and shared unpublished data. These contributions have greatly improved the writer's understanding of the stratigraphy. Dr. Rosemary A. Kyle generously shared time, her own palynological experience, and participated in numerous helpful discussions concerning taxonomy and the assembly of the manuscript. Her contributions are appreciated. Dr. GHran Kjellstrbm of the Geological Survey of Sweden and Dr. Fred May of the U. S. Geological Survey provided comparative material and Dr. Francine Martin, Dr. Milada Vavrdova, and Dr. Fritz Cramer have provided helpful comments and correspondence. The writer is indebted to several others, who helped with specific portions of this work. Robert Wilkinson helped with photography and offered appreciated ii moral support. Jeffrey Franklin spent many hours on the SEM, taking photographs and recognizing acritarch morphology. Blythe Hoyle pro vided field assistance and prepared numerous samples. Kathy Rader crushed rock samples. Frank Holterhoff offered field assistance. Merrell Miller, Dr. Stan Finney, Lon McCullough, and Dr. Jack Carnes offered numerous suggestions and willingly shared experiences to the writer's profit. Karen Tyler and Ron Coffman did the drafting with speed and skill. Reggie Brown and Marge Tibbetts provided magic in the Orton Library by finding, acquiring, and borrowing often obscure' literature. 1 especially recognize the advantage of having had this report typed by Helen Jones, who beat my deadlines with her typewriter. Funding for this study has been supplied by the Department of Geology and Mineralogy, the Friends of Orton Hall, the U. S. Geological Survey and a Grant-in-Aid from the College of Mathematics and Physical Sciences at The Ohio State University made to Dr. Stig M. Bergstrflm. This financial assistance is much appreciated. iii VITA September 25, 1944 Born, New York, New York 1969 B.S. Dickinson College, Carlisle, Pennsylvania. 1972 M.A., Harvard University, Cambridge, Massachusetts 1974-1977 Teaching Assistant, Research Assistant, Department of Geology and Mineralogy, The Ohio State University, Columbus, Ohio 1975-1976 Geologist, United States Geological Survey, Coal Geology Laboratory, Columbus, Ohio PUBLICATIONS Jacobson, S. R., 1977, Acritarch Blostratigraphy of Middle and Late Ordovician Carbonate Rocks of the Trenton Group, New York and equivalent strata in the Cincinnati Region, (abs.); Geol. Soc. Amer., Abs. with Programs (Northeastern Section), V. 9, no. 3, p. 279. Jacobson, S. R., 1977, Blostratigraphy and paleoecology of acritarchs from Middle and Upper Ordovician rocks in the Cincinnati Region, (abs.): Geol. Soc. Amer., Abs. with Programs (North-central Section), V. 9, no. 5, p. 609-610. Jacobson, S. R., 1977, Acritarchs from Middle & Upper Ordovician Rocks of the Eastern Midcontinent, U.S.A.: Blostratigraphy and Paleoecology. Programs and abstracts, p. 27. Third International Symposium on The Ordovician System. Columbus, Ohio. Jacobson, S. R., 1977, Middle and Upper Ordovician acritarchs, eastern Midcontinent, U.S.A., Abstracts. Coloquio Internat. Palinologia, Leon, Espana, Septeiembre, 1977, p. 21. iv TABLE OF CONTENTS Page ACKNOWLEDGMENTS ii VITA iv LIST OF TABLES vii LIST OF FIGURES viii LIST OF PLATES x INTRODUCTION 1 Chapter I. NOMENCLATURE OF ROCKS IN THE CINCINNATI REGION..... 8 II. NOMENCLATURE OF ROCKS IN NEW YORK STATE 17 III. HISTORY OF STUDY OF ORDOVICIAN ACRITARCHS 23 North America 24 Baltic Region 26 France 29 Bohemia 30 Poland 31 North Africa 31 British Isles 32 Other Areas 34 IV. STRATIGRAPHIC SIGNIFICANCE OF THE ACRITARCH ASSEMBLAGES.. 36 Biostratigraphic Potential of Acritarch Ranges 36 Acritarch Associations and their biostratigraphic Use. 40 Ecologic Significance of the Acritarch Assemblages.... 50 Paleoenvironments 53 Relations between lithofacies and acritarchs dis tribution patterns 53 Acritarch Provinciality 67 Summary 69 V. PREPARATION TECHNIQUES 71 Introduction 71 Collection and Cleaning 71 v Chemical Treatment 72 Carbonate Dissolution 72 Silicate Dissolution 72 Pyrite Dissolution. 73 Mechanical Treatment 74 Removal of Clay and Concentration of Microfossils with Heavy-liquid 74 Microscope Slide Preparation 75 SEM Stub Preparation 76 Preservation of Palynologic specimens examined by SEM for later study and reference 77 Photography 80 Repository of Specimens 80 VI. INTRODUCTION TO SYSTEMATICS 81 VII. SYSTEMATIC PALEONTOLOGY 86 LIST OF REFERENCES 247 APPENDIX A. Sample Descriptions Maysville Section, Maysville, Kentucky i 265 Cincinnati Composite Section, near Cincinnati, Ohio.. 266 Clifton Avenue, Cincinnati 267 Newport (Ky.) Shopping Center 267 Covington,. Ky 268 Clay's Ferry Section, Clay's Ferry, Kentucky 268 New York State Composite Section 269 City Brook 270 Martinsburg, Roaring Brook 270 Deer River, Kings Falls 270 Deer River, High Falls 271 Trenton Falls, West Canada Creek 271 APPENDIX B. - Tables of Acritarch Occurrences 272 APPENDIX C. - Plates 276 VI LIST OF TABLES Table Page 1. Measurements of Specimens of Aremoricanium squarrosum from the Cincinnati Region 94 2. Measurements of Specimens of Aremoricanium squarrosum from New York 94 3. Measurements of Specimens of Leiosphaeridia? extra- tubulata 143 4. Measurements of Specimens Similar to Leiovalia similis... 156 5. Acritarch Occurrences in Samples Used"in New York State Composite Section 272 6. Acritarch Occurrences in Samples at Maysville, Kentucky.. 273 7. Acritarch Occurrences in Samples Used in Cincinnati Composite Section 274 8. Acritarch Occurrences in Samples at Clay's Ferry, Kentucky 275 vii LIST OF FIGURES Figure Page 1. Locality Map of New York State 2 2. Locality Map of the Cincinnati Region 7 3. Stratigraphic Sections Used to Compile Cincinnati Compo site Section 10 4. Stratigraphic Section at Maysville, Kentucky 14 5. Stratigraphic Section at Clay's Ferry, Kentucky 16 6. Stratigraphic Units in New York State. 22 7. Relative Abundances of Acritarch Associations at Maysville, Kentucky 44 8. Relative Abundances of Acritarch Associations in Cincinnati Composite Section 45 9. Relative Abundances of Acritarch