Geological Survey Research 1960, Geological Survey Professional

Total Page:16

File Type:pdf, Size:1020Kb

Geological Survey Research 1960, Geological Survey Professional Geological Survey Research 1960 Synopsis of Geologic Results GEOLOGICAL SURVEY PROFESSIONAL PAPER 400-A Geo Survey Research 1960 THOMAS B. NOLAN, Director GEOLOGICAL SURVEY PROFESSIONAL PAPER 400 A synopsis ofgeologic results, accompanied by short papers in the geologicalsciences. Publishedseparately as chapters A4 and B UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON :1960 FOREWORD The activities of the United States Geological Survey encompass projects that span the full range of the geological sciences. The volume and complexity of such a research program make it difficult to review, coordinate, and release the results of the work as quickly as is de- sirable; as a result considerable time normally elapses between the completion of many in- vestigations and the publication of the final reports. And yet this same volume and com- plexity make it the more essential that some means be found to digest and make available to all the new ideas and new discoveries that have been achieved. In an effort to help solve this problem the present volume has been prepared; it sum- marizes the results of the recent work of the Geologic Division of the Survey. The report consists of two main parts: Chapter A, "Synopsis of Geologic Results," is primarily a summary of important new findings, either as yet unpublished or published during the fiscal year 1960-the 12 months ending June 30, 1960. It also includes a list of investigations in progress during that period, along with the names and headquarters of those in charge of each, and a list of reports published or otherwise made available to the public during the same period. Chapter B, "Short Papers in the Geological Sciences," consists of 232 papers, generally less than 1,000 words in length. These are of two kinds. Some papers are primarily announce- ments of new discoveries or observations on problems of limited scope, regarding which more detailed and comprehensive reports may or may not be published later. Others summarize the conclusions drawn from extensive investigations that have been in progress for some time; these conclusions in large part will be embodied in much longer reports that will be published later. This report is frankly an experiment. Although both chapters in this volume deal largely with the work of the Geologic Division, it is hoped to expand the scope of the report in future years to include results obtained by other Divisions of the Geological Survey, and to issue it annually. But whether this is done, and whether future issues will be in the same form as this one, depends on how well this volume achieves the purposes described above. Comments and suggestions from those who use the volume will be appreciated and will help determine the content of the future ones. THOMAs B. NOLAN, Director. m PREFACE The main activities of the Geologic Division of the addresses of those in charge of them, in the hope that Geological Survey may be grouped into three main it may prove helpful to those interested in work in categories, defined by the immediate objectives that progress in various areas or topics. motivate them: (a) economic geology; (c) regional The results summarized here are presented in sev- geology; and (b) research on geological processes and eral categories based on the immediate objectives of principles. The work in the field of economic geology the work or its applicability to some special field. is aimed primarily at developing information that will Those results that have mainly to do with economic be useful in the search for usable deposits of minerals problems are described on pages A1-A26; results and fuels, or help to solve problems connected with that bear mainly on the geology of specific regions are engineering works, such as the construction of high- given on pages A26-A54; and those that deal mainly ways and dams. It also provides the nation with an with principles, processes, and methods of general in- appraisal of its known and potential mineral resources. terest are discussed on pages A54-A73. Although The regional studies determine the structure, composi- this classification of subject matter is a familiar one, tion, history, and distribution of the rocks that under- it is nevertheless overlapping-an investigation stimu- lie the United States and other areas. Because this lated by economic objectives may also yield important work is essentially exploratory in nature, its underly- results in the fields of regional and theoretical geology, ing purpose is also mainly economic, for it provides and so on. Limitations of both space and time pre- the basis for the broad appraisal of the potential min- vent us from including an index to chapter A, but gen- eral resources of undeveloped areas. The research on eral cross-references are given at appropriate places geologic processes and principles consists of observa- in the text. We hope that these, together with the tional, experimental, or theoretical investigations in table of contents, will guide the reader to the topic in the field and in the laboratory, aimed at improving our which he is most interested. The short papers of understanding of geologic processes and principles and chapter B are arranged topically and in addition are hence developing and extending the usefulness of the accompanied by a short index. geologic sciences. In addition, an important part of During fiscal year 1960, the Geologic Division's serv- the Division's work consists of services to other Fed- ices were utilized by and financially supported to eral agencies that either do not have geologic staffs some extent by the following organizations: of their own or that require some of the special skills Federal Agencies: of the Division's scientists. Air Force-Cambridge Research Center Nearly all of the Division's activities yield new data Air Force-Technical Application Center and principles valuable in the development or appli- Army-Corps of Engineers cation of the geologic sciences, and it is the purpose of Army Engineer Research and Development Labo- chapter A to summarize the highlights of important ratory findings that have'come to the fore during fiscal year Army-Waterways Experiment Station 1960. Some of these have been published or placed on Atomic Energy Commission-Division of Biology open file during the year, some are published in chap- and Medicine ter B of this volume, and some have not yet been pub- Atomic Energy Commission-Division of Reactor published elsewhere at all. Only a part of the results Development released during this period can be reported here, even Atomic Energy Commission-Military Applica- in summary fashion, and the reader who needs more tion Division complete and detailed information will wish to con- Atomic Energy Commission-Raw Materials Di- suit the publications listed on pages A107-A127 and vision the papers in chapter B. Atomic Energy Commission-Research Division A comprehensive list of investigations in progress Atomic Energy Commission-Special Projects Di- is given on pages A76-A106, with the names and vision V VIE PREFACE Bureau of Indian Affairs Commonwealth: Bureau of Mines Puerto Rico Economic Development Administra- Bureau of Land Management tion Bureau of Public Roads Bureau of Reclamation In addition to the agencies named above, the Geo- Department of Agriculture logic Division has cooperated from time to time with International Cooperation Administration other organizations, and some of the results described National Institutes of Health-Cancer Institute in the following pages stem from work supported in National Park Service previous years by agencies not listed above. All co- National Science Foundation operating agencies are identified where appropriate in Navy-Bureau of Docks the individual papers of chapter B, and they are men- Navy-Office of Naval Research tioned in connection with some of the larger programs Office of Minerals Exploration in chapter A. Space limitations make it impossible Office of Minerals Mobilization to identify their contributions in connection with many State AgencWs: of the short statements in the following pages but it is Arkansas Geological and Conservation Commis- a pleasure to acknowledge here the financial support sion and splendid technical cooperation we have received California Department of Natural Resources, Di- vision of Mines from all of them. Colorado State Metal Mining Fund Board Nearly everyone in the Geologic Division contrib- Connecticut Geological and Natural History Sur- uted directly or indirectly to this report, which was vey prepared between March and June 1960, but the chief Commission of Public Lands, Hawaii responsibilities for it were held as follows: V. E. State Geological Survey of Kansas, University of McKelvey planned and directed all phases of the prep- Kansas aration of the report, and assembled chapter A from Kentucky Geological Survey, University of Ken- information supplied by many project chiefs and pro- tucky gram leaders. R. A. Weeks and R. L. Boardman com- Massachusetts Department of Public Works -piled the list of investigations in progress, and David Department of Conservation, Geological Survey Gallagher compiled the list of publications and the Division, State of Michigan index to chapter B. Doris I. Kniffin managed the New Hampshire State Planning and Develop- clerical aspects of the project. J. P. Albers and A. B. ment Commission Griggs helped process the papers of chapter B, and Nevada Bureau of Mines, University of Nevada nearly all of both North Carolina Department of Conservation and F. C. Calkins critically reviewed Development chapters and vastly improved their style and expres- Bureau of Topographic and Geologic Survey, De- sion. I am deeply grateful to these people and to the partment of Internal Affairs, Commonwealth of members of the Division as a whole for their enthu- Pennsylvania siastic support of this undertaking. State of Rhode Island and Providence Plantations Washington Department of Conservation, Divi- sion of Mines and Geology Wisconsin Geological and Natural History Sur- vey, University of Wisconsin Cnmrzs A.
Recommended publications
  • Saving the Information Commons a New Public Intere S T Agenda in Digital Media
    Saving the Information Commons A New Public Intere s t Agenda in Digital Media By David Bollier and Tim Watts NEW AMERICA FOUNDA T I O N PUBLIC KNOWLEDGE Saving the Information Commons A Public Intere s t Agenda in Digital Media By David Bollier and Tim Watts Washington, DC Ack n owl e d g m e n t s This report required the support and collaboration of many people. It is our pleasure to acknowledge their generous advice, encouragement, financial support and friendship. Recognizing the value of the “information commons” as a new paradigm in public policy, the Ford Foundation generously supported New America Foundation’s Public Assets Program, which was the incubator for this report. We are grateful to Gigi Sohn for helping us develop this new line of analysis and advocacy. We also wish to thank The Open Society Institute for its important support of this work at the New America Foundation, and the Center for the Public Domain for its valuable role in helping Public Knowledge in this area. Within the New America Foundation, Michael Calabrese was an attentive, helpful colleague, pointing us to useful literature and knowledgeable experts. A special thanks to him for improv- ing the rigor of this report. We are also grateful to Steve Clemons and Ted Halstead of the New America Foundation for their role in launching the Information Commons Project. Our research and writing of this report owes a great deal to a network of friends and allies in diverse realms. For their expert advice, we would like to thank Yochai Benkler, Jeff Chester, Rob Courtney, Henry Geller, Lawrence Grossman, Reed Hundt, Benn Kobb, David Lange, Jessica Litman, Eben Moglen, John Morris, Laurie Racine and Carrie Russell.
    [Show full text]
  • The Uranium Deposits of Northeastern Arizona William L
    New Mexico Geological Society Downloaded from: http://nmgs.nmt.edu/publications/guidebooks/24 The uranium deposits of northeastern Arizona William L. Chenoweth and Roger C. Malan, 1973, pp. 139-149 in: Monument Valley (Arizona, Utah and New Mexico), James, H. L.; [ed.], New Mexico Geological Society 24th Annual Fall Field Conference Guidebook, 232 p. This is one of many related papers that were included in the 1973 NMGS Fall Field Conference Guidebook. Annual NMGS Fall Field Conference Guidebooks Every fall since 1950, the New Mexico Geological Society (NMGS) has held an annual Fall Field Conference that explores some region of New Mexico (or surrounding states). Always well attended, these conferences provide a guidebook to participants. Besides detailed road logs, the guidebooks contain many well written, edited, and peer-reviewed geoscience papers. These books have set the national standard for geologic guidebooks and are an essential geologic reference for anyone working in or around New Mexico. Free Downloads NMGS has decided to make peer-reviewed papers from our Fall Field Conference guidebooks available for free download. Non-members will have access to guidebook papers two years after publication. Members have access to all papers. This is in keeping with our mission of promoting interest, research, and cooperation regarding geology in New Mexico. However, guidebook sales represent a significant proportion of our operating budget. Therefore, only research papers are available for download. Road logs, mini-papers, maps, stratigraphic charts, and other selected content are available only in the printed guidebooks. Copyright Information Publications of the New Mexico Geological Society, printed and electronic, are protected by the copyright laws of the United States.
    [Show full text]
  • Fort Davy Crockett: Browns Park National Wildlife Refuge (Colorado)
    U.S. FISH AND WILDLIFE SERVICE: REGION 6 - CULTURAL RECOURSE PROGRAM Fort Davy Crockett?: An Archaeological Mystery Browns Park National Wildlife Refuge – Northwest Colorado Summarized from: A Report on the Results of Limited Subsurface Testing at 5MF5478, a Proposed Site of Historic Fort Davy Crockett, Moffat County, Colorado Kristen D. Kent and Mona C. Charles, Department of Anthropology, Fort Lewis College, Durango, Colorado December 2004 Introduction The follow excerpts are from a 2004 report documenting archaeological testing at the possible location of Fort Davy Crocket on the Brown’s Park National Wildlife Refuge. Many studies and much research has been conducted over the years to try and determine if the remains found on a bluff overlooking the Green River on the Browns Park National Wildlife Refuge are indeed those of the Fort. This research adds additional insight into the mystery. Fort Davy Crockett In 1837 three fur trappers, Prewett Sinclair, Philip Thompson, and William Criag, formed a partnership and reportedly built Fort Davy Crockett that same year. The Fort was named after the famous Tennessee frontiersman who died at the Battle of the Alamo in Texas the previous year. Kit Carson, another famous frontiersman, trapper and scout is reported to have been employed by the owners of Fort Davy Crockett. In 1839 members of the Peoria Party on their way to Oregon reported staying at the Fort. A description of the Fort was provided in the recordings of Thomas Jefferson Farnham, leader of the Peoria Party. He described the Fort thus: The fort, as it is called, peered up in the centre, upon the winding banks of the Sheetskadee.
    [Show full text]
  • Geologic Map and Upper Paleozoic Stratigraphy of the Marble Canyon Area, Cottonwood Canyon Quadrangle, Death Valley National Park, Inyo County, California
    Geologic Map and Upper Paleozoic Stratigraphy of the Marble Canyon Area, Cottonwood Canyon Quadrangle, Death Valley National Park, Inyo County, California By Paul Stone, Calvin H. Stevens, Paul Belasky, Isabel P. Montañez, Lauren G. Martin, Bruce R. Wardlaw, Charles A. Sandberg, Elmira Wan, Holly A. Olson, and Susan S. Priest Pamphlet to accompany Scientific Investigations Map 3298 2014 U.S. Department of the Interior U.S. Geological Survey Cover View of Marble Canyon area, California, showing dark rocks of Mississippian Indian Springs Formation and Pennsylvanian Bird Spring Formation overlying light rocks of Mississippian Santa Rosa Hills Limestone in middle distance. View is southeast toward Emigrant Wash and Tucki Mountain in distance. U.S. Department of the Interior SALLY JEWELL, Secretary U.S. Geological Survey Suzette M. Kimball, Acting Director U.S. Geological Survey, Reston, Virginia: 2014 For more information on the USGS—the Federal source for science about the Earth, its natural and living resources, natural hazards, and the environment—visit http://www.usgs.gov or call 1–888–ASK–USGS For an overview of USGS information products, including maps, imagery, and publications, visit http://www.usgs.gov/pubprod To order this and other USGS information products, visit http://store.usgs.gov Suggested citation: Stone, P., Stevens, C.H., Belasky, P., Montanez, I.P., Martin, L.G., Wardlaw, B.R., Sandberg, C.A., Wan, E., Olson, H.A., and Priest, S.S., 2014, Geologic map and upper Paleozoic stratigraphy of the Marble Canyon area, Cottonwood Canyon quadrangle, Death Valley National Park, Inyo County, California: U.S. Geological Survey Scientific Investigations Map 3298, scale 1:24,000, 59 p., http://dx.doi.org/10.3133/sim3298.
    [Show full text]
  • Tulane Studies Tn Geology and Paleontology Pliocene
    TULANE STUDIES TN GEOLOGY AND PALEONTOLOGY Volu me 22, Number 2 Sepl<'mber 20. l!J8~) PLIOCENE THREE-TOED HORSES FROM LOUISIANA. WITH COMMENTS ON THE CITRONELLE FORMATION EAHL M. MANNING MUSP.UM OF'GEOSCIF:NCE. LOUISJJ\NA STATE UNIVF:RSlTY. JJATO.\I ROI.JG/<. LOL'/S//\;\':1 and llRUCE J. MACFADDlrn DEJ>ARTM/<:NTOF NATUH/\LSCIENCES. F'LORJD/\ MUSf:UM Of<'NJ\TUIV\/, lllSTOUY UNIVERSITY OF FLOH!IJJ\. GJ\/NESVlU.E. Fl.OH/DA CONTENTS Page T. ABSTRACT 3.5 II INTRODUCTION :l5 Ill. ACKNOWLEDGMENTS :rn TV . ABBREVIATIONS :l7 V. SYSTEMATIC PALEONTOLOGY ;37 VI. AGE OF THE TUNICA HILLS HIPPARIONINES 38 VIL STRATIGRAPHIC PROVENIENCE 38 Vlll. PLIOCENE TERRESTRIAL VERTEBRATES OF THE GULF AND ATLANTIC COASTAL PLAIN .JO IX. COMMENTS ON THE CITRONELLE FORMATION .JI X. AGE OF THE CITRONELLE 42 XL TH E CITRONELLE FORMATION IN nm TUNICA HILLS .t:1 XII. LITERATURE CITED l.J January of 1985, the senior author was L ABSTRACT shown a large collection of late Pleistocene Teeth and metacarpals of early Pliocene (Rancholabrean land-mammal agel ver­ (latest Hemphillian land-mammal age) tebrate fossils from the Tunica Hills of three-toed (hipparionine) horses are de­ Louisiana (Fig. I) by Dr. A. Bradley scribed from the Tunica Hills of West McPherson of Centenary College, Feliciana Parish in east-central Louisiana. Shreveport. McPherson and Mr. Bill Lee An upper molar perta ins to Nannippus of Balon Rouge had collected fossils from minor, known from the Hcmphillian of that area since about 1981. Among the Central and North America, and two teeth standard assemblage of Rancholabrean and two distal metacarpals pertain to a re­ taxa (e.g.
    [Show full text]
  • DMAAC – February 1973
    LUNAR TOPOGRAPHIC ORTHOPHOTOMAP (LTO) AND LUNAR ORTHOPHOTMAP (LO) SERIES (Published by DMATC) Lunar Topographic Orthophotmaps and Lunar Orthophotomaps Scale: 1:250,000 Projection: Transverse Mercator Sheet Size: 25.5”x 26.5” The Lunar Topographic Orthophotmaps and Lunar Orthophotomaps Series are the first comprehensive and continuous mapping to be accomplished from Apollo Mission 15-17 mapping photographs. This series is also the first major effort to apply recent advances in orthophotography to lunar mapping. Presently developed maps of this series were designed to support initial lunar scientific investigations primarily employing results of Apollo Mission 15-17 data. Individual maps of this series cover 4 degrees of lunar latitude and 5 degrees of lunar longitude consisting of 1/16 of the area of a 1:1,000,000 scale Lunar Astronautical Chart (LAC) (Section 4.2.1). Their apha-numeric identification (example – LTO38B1) consists of the designator LTO for topographic orthophoto editions or LO for orthophoto editions followed by the LAC number in which they fall, followed by an A, B, C or D designator defining the pertinent LAC quadrant and a 1, 2, 3, or 4 designator defining the specific sub-quadrant actually covered. The following designation (250) identifies the sheets as being at 1:250,000 scale. The LTO editions display 100-meter contours, 50-meter supplemental contours and spot elevations in a red overprint to the base, which is lithographed in black and white. LO editions are identical except that all relief information is omitted and selenographic graticule is restricted to border ticks, presenting an umencumbered view of lunar features imaged by the photographic base.
    [Show full text]
  • Geologic Studies of the Platte River, South-Central Nebraska and Adjacent Areas—Geologic Maps, Subsurface Study, and Geologic History
    University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Publications of the US Geological Survey US Geological Survey 2005 Geologic Studies of the Platte River, South-Central Nebraska and Adjacent Areas—Geologic Maps, Subsurface Study, and Geologic History Steven M. Condon Follow this and additional works at: https://digitalcommons.unl.edu/usgspubs Part of the Earth Sciences Commons Condon, Steven M., "Geologic Studies of the Platte River, South-Central Nebraska and Adjacent Areas—Geologic Maps, Subsurface Study, and Geologic History" (2005). Publications of the US Geological Survey. 22. https://digitalcommons.unl.edu/usgspubs/22 This Article is brought to you for free and open access by the US Geological Survey at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Publications of the US Geological Survey by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. Geologic Studies of the Platte River, South- Central Nebraska and Adjacent Areas—Geologic Maps, Subsurface Study, and Geologic History Professional Paper 1706 U.S. Department of the Interior U.S. Geological Survey Geologic Studies of the Platte River, South-Central Nebraska and Adjacent Areas—Geologic Maps, Subsurface Study, and Geologic History By Steven M. Condon Professional Paper 1706 U.S. Department of the Interior U.S. Geological Survey U.S. Department of the Interior Gale A. Norton, Secretary U.S. Geological Survey Charles G. Groat, Director Version 1.0, 2005 This publication and any updates to it are available online at: http://pubs.usgs.gov/pp/pp1706/ Manuscript approved for publication, March 3, 2005 Text edited by James W. Hendley II Layout and design by Stephen L.
    [Show full text]
  • Mollusks and a Crustacean from Early Oligocene Methane-Seep Deposits in the Talara Basin, Northern Peru
    Mollusks and a crustacean from early Oligocene methane-seep deposits in the Talara Basin, northern Peru STEFFEN KIEL, FRIDA HYBERTSEN, MATÚŠ HYŽNÝ, and ADIËL A. KLOMPMAKER Kiel, S., Hybertsen, F., Hyžný, M., and Klompmaker, A.A. 2020. Mollusks and a crustacean from early Oligocene methane- seep deposits in the Talara Basin, northern Peru. Acta Palaeontologica Polonica 65 (1): 109–138. A total of 25 species of mollusks and crustaceans are reported from Oligocene seep deposits in the Talara Basin in north- ern Peru. Among these, 12 are identified to the species-level, including one new genus, six new species, and three new combinations. Pseudophopsis is introduced for medium-sized, elongate-oval kalenterid bivalves with a strong hinge plate and largely reduced hinge teeth, rough surface sculpture and lacking a pallial sinus. The new species include two bivalves, three gastropods, and one decapod crustacean: the protobranch bivalve Neilo altamirano and the vesicomyid bivalve Pleurophopsis talarensis; among the gastropods, the pyropeltid Pyropelta seca, the provannid Provanna pelada, and the hokkaidoconchid Ascheria salina; the new crustacean is the callianassid Eucalliax capsulasetaea. New combina- tions include the bivalves Conchocele tessaria, Lucinoma zapotalensis, and Pseudophopsis peruviana. Two species are shared with late Eocene to Oligocene seep faunas in Washington state, USA: Provanna antiqua and Colus sekiuensis; the Talara Basin fauna shares only genera, but no species with Oligocene seep fauna in other regions. Further noteworthy aspects of the molluscan fauna include the remarkable diversity of four limpet species, the oldest record of the cocculinid Coccopigya, and the youngest record of the largely seep-restricted genus Ascheria.
    [Show full text]
  • Deep Sea Drilling Project Initial Reports Volume 6
    39. PLANKTONIC MICROFOSSIL BIOSTRATIGRAPHY OF THE NORTHWESTERN PACIFIC OCEAN David Bukry1, U.S. Geological Survey, La Jolla, California, Robert G. Douglas, Case Western Reserve University, Cleveland, Ohio, Stanley A. Kling, Cities Service Oil Company, Tulsa, Oklahoma, and Valeri Krasheninnikov, Academy of Sciences of the U.S.S.R., Moscow CONTENTS Page Page Introduction 1253 Regional Correlation 1281 Zonal Comparison 1254 Calcareous Nannoplankton 1281 Planktonic Foraminifera, Mesozoic 1281 Upper Cretaceous-Paleocene Boundary 1255 California 1281 Paleocene-Eocene Boundary 1259 Japan 1285 Eocene-Oligocene Boundary 1259 West Pacific 1286 Oligocene-Miocene Boundary 1259 Australia 1287 Miocene-Pliocene Boundary 1260 Planktonic Foraminifera, Cenozoic 1288 Pliocene-Pleistocene Boundary 1261 Solomon Islands 1288 Zonal Summary 1261 Mariana Islands 1288 The Philippines 1288 Paleoecology 1261 Taiwan 1289 Calcareous Nannoplankton 1261 Japan 1289 Radiolaria 1267 Kamchatka Penisula 1290 California 1290 Preservation 1267 Radiolaria 1291 Calcareous Nannoplankton 1267 Sedimentation Rates 1291 Foraminifera 1269 Relationship to Acoustostratigraphy 1294 Radiolaria 1279 References 1296 INTRODUCTION A comparison of zonal units of calcareous nannoplank- ton, foraminifera, and radiolarians in the same strata Biostratigraphic evidence obtained from the north- shows only few cases of exact coincidence of zonal western Pacific Ocean as a result of coring carried out limits, especially if coincidences at the top or bottom by the Glomar Challenger during Leg 6 of the Deep of the standard 9-meter coring runs are dismissed as Sea Drilling Project from Hawaii to Guam is considered artificially induced owing to gaps in sediment recovery. here mainly from the standpoint of three dominant Exact coincidence of zonal limits within coring runs marine planktonic microfossil groups—calcareous nan- are most notable for the Upper Paleocene sediment of noplankton, foraminifers, and radiolarians.
    [Show full text]
  • Geology and Coal Resources Op North Park, Colorado
    DEPARTMENT OF THE INTERIOR UNITED STATES GEOLOGICAL SURVEY GEORGE OTIS SMITH, DIBECTOR' 596 GEOLOGY AND COAL RESOURCES OP NORTH PARK, COLORADO BY A. L. BEEKLY WASHINGTON GOVERNMENT PRINTING OFFICE 1915 CONTENTS. Page. Introduction _ ______ _,___________ 7 Location and area__ _ _ _____. __________1___ 7 Accessibility_________________________________ 8 Explorations in the region________________________ 8 Preparation of the map___________________________ 10 Base map_.______________________________ 10 ' Field work_______________________________ 10 Office work______________._________ __ 11 Acknowledgments_______________________________ 11 Geography ______________ ______________________ 12 Relief______________________________________ 12 Major features..____________.________________ 12 Medicine Bow Range_______.________ ______ 12 Park Range____________________________ 13 Continental Divide____________.___________ 13 Floor of the park____________ '._.___________ 13 Minor features________________:_. ______ 14 Drainage___________________ ______________ 16 Settlement__________i_______________________ 18 Stratigraphy __________ __________.___________ 19 Sedimentary rocks ______________________________ 19 Age and correlation.. ______!____ .___________ 19 Geologic section________________._________'_ 20 Carboniferous (?) system_______________________ 21 Pennsylvanfan or Permian (?) series______________ 21 Distribution and character_____.___________ 21 Stratigraphic relations________.___________ 21 Fossils_____________________________ 22 Triassic (?)
    [Show full text]
  • A New Machairodont from the Palmetto Fauna (Early Pliocene) of Florida, with Comments on the Origin of the Smilodontini (Mammalia, Carnivora, Felidae)
    A New Machairodont from the Palmetto Fauna (Early Pliocene) of Florida, with Comments on the Origin of the Smilodontini (Mammalia, Carnivora, Felidae) Steven C. Wallace1*, Richard C. Hulbert Jr.2 1 Department of Geosciences, Don Sundquist Center of Excellence in Paleontology, East Tennessee State University, Johnson City, Tennessee, United States of America, 2 Florida Museum of Natural History, University of Florida, Gainesville, Florida, United States of America Abstract South-central Florida’s latest Hemphillian Palmetto Fauna includes two machairodontine felids, the lion-sized Machairodus coloradensis and a smaller, jaguar-sized species, initially referred to Megantereon hesperus based on a single, relatively incomplete mandible. This made the latter the oldest record of Megantereon, suggesting a New World origin of the genus. Subsequent workers variously accepted or rejected this identification and biogeographic scenario. Fortunately, new material, which preserves previously unknown characters, is now known for the smaller taxon. The most parsimonious results of a phylogenetic analysis using 37 cranio-mandibular characters from 13 taxa place it in the Smilodontini, like the original study; however, as the sister-taxon to Megantereon and Smilodon. Accordingly, we formally describe Rhizosmilodon fiteae gen. et sp. nov. Rhizosmilodon, Megantereon, and Smilodon ( = Smilodontini) share synapomorphies relative to their sister-taxon Machairodontini: serrations smaller and restricted to canines; offset of P3 with P4 and p4 with m1; complete verticalization of mandibular symphysis; m1 shortened and robust with widest point anterior to notch; and extreme posterior ‘‘lean’’ to p3/p4. Rhizosmilodon has small anterior and posterior accessory cusps on p4, a relatively large lower canine, and small, non-procumbent lower incisors; all more primitive states than in Megantereon and Smilodon.
    [Show full text]
  • United States Department of the Interior U.S. Geological Survey
    UNITED STATES DEPARTMENT OF THE INTERIOR U.S. GEOLOGICAL SURVEY RESOURCE ASSESSMENT OF THE BUREAU OF LAND MANAGEMENT'S WINNEMUCCA DISTRICT AND SURPRISE RESOURCE AREA, NORTHWEST NEVADA AND NORTHEAST CALIFORNIA An Interim Project Status Report by Jeff L. Doebrich \ George V. Albino 2, Charles E. Barker 3, Wendell A. Duffield 4, Victor C. Dunn s, Willam F. Hanna 6, Joseph P. McFarlan 7, Dawn J. McGuire 8, Michael S. Miller 9, Stephen G. Peters \ Donald Plouff 10, Gary L. Raines \ Don L. Sawatzky1, and Gregory T. Spanski " United States Geological Survey Open-File Report 94-712 This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards or with the North America Stratigraphic Code. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. 1994 'USGS, MS 176, Reno Field Office, Mackay School of Mines, University of Nevada, Reno, NV 89557-0047 2U.S. Geological Survey, Unit 62101, APO AE 09811-2101 3USGS, MS 971, Box 25046, Denver Federal Center, Denver, CO 80225-0046 4USGS, Bldg. 3, 2255 North Gemini Dr., Flagstaff, AZ 86001-1698 5Bureau of Land Management, 705 E. 4th St., Winnemucca, NV 89445 6USGS, National Center, MS 927, 12201 Sunrise Valley Dr., Reston, VA 22092-0001 7Bureau of Land Management, P.O. Box 460, Cedarville, CA 96104 8USGS, MS 973, Box 25046, Denver Federal Center, Denver, CO 80225-0046 'Western Field Operations Center, U.S. Bureau of Mines, E. 360 Third Ave., Spokane, WA 99202 10USGS, MS 989, Bldg.
    [Show full text]