MEMOIR 2 3 PART I The Wolfcampian Joyita Uplift in Central New Mexico by FRANK E. KOTTLOWSKI and WENDELL J. STEWART PART II Fusulinids of the Joyita Hills Socorro County, Central New Mexico by WENDELL J. STEWART Texaco Inc. 1 9 7 0 STATE BUREAU OF MINES AND MINERAL RESOURCES NEW MEXICO INSTITUTE OF MINING AND TECHNOLOGY CAMPUS STATION SOCORRO, NEW MEXICO NEW MEXICO INSTITUTE OF MINING & TECHNOLOGY Stirling A. Colgate, President STATE BUREAU OF MINES AND MINERAL RESOURCES Don H. Baker, Jr., Director THE REGENTS MEMBERS EX OFFICIO THE HONORABLE DAVID F. CARGO .................................................. Governor of New Mexico LEONARD DELAYO ........................................................... Superintendent of Public Instruction APPOINTED MEMBERS WILLIAM G. ABBOTT ..................................................................................................................... Hobbs HENRY S. BIRDSEYE ............................................................................................................ Albuquerque THOMAS M. CRAMER .................................................................................................................. Carlsbad STEVE S. TORRES, JR. .................................................................................................................... Socorro RICHARD M. ZIMMERLY ........................................................................................................... Socorro Published April i 5, 1970 For sale by the New Mexico Bureau of Mines & Mineral Resources Campus Station, Socorro, N. Mex. 87801—Price $4.00 Contents PART I Page ABSTRACT ................................................................................................................................................................ 3 INTRODUCTION ................................................................................................................................................... 3 Regional Setting ..................................................................................................................................................... 3 Acknowledgments 6 STRATIGRAPHIC SEQUENCE ......................................................................................................................... 7 Basal Pennsylvanian Strata .................................................................................................................................. 7 Early Atokan Strata ............................................................................................................................................... 8 Coal Mine Canyon (Section JH1) 10 Canoncito Colorado (Section JH2) 10 Central Canyon (Section JH3) .............................................................................................................. 10 Section B .................................................................................................................................................. I I East Fork of South Canyon (Section JH4) ......................................................................................... I I South Fork of South Canyon (Section JH5) ...................................................................................... 12 Late Atokan Strata .............................................................................................................................................. 12 Coal Mine Canyon (Section JH1) ........................................................................................................ 12 Canoncito Colorado (Section JH2) ..................................................................................................... 12 Central Canyon (Section JH3) .............................................................................................................. 12 East Fork of South Canyon (Section JH4) .......................................................................................... 14 Desmoinesian Strata 14 Early Desmoinesian Limestone Sequence ................................................................................................. 15 Cañoncito Colorado (Section JH2) ..................................................................................................... 15 Central Canyon (Section JH3) .............................................................................................................. 15 East Fork of South Canyon (Section JH4) ......................................................................................... 15 Early Desmoinesian Clastic Sequence 17 Canada Ancha Section 17 Coal Mine Canyon (Section JH1) ........................................................................................................ 17 Cañoncito Colorado (Section JH2) ..................................................................................................... 17 Central Canyon (Section JH3) 17 East Fork of South Canyon (Section JH4) ......................................................................................... 19 Missourian Strata ................................................................................................................................................. 19 Canada Ancha Section ........................................................................................................................... 19 Coal Mine Canyon (Section JH1) ........................................................................................................ 19 Cañoncito Colorado (Section JH2) ..................................................................................................... 20 Section B 20 Central Canyon (Section JH3) 20 East Fork of South Canyon (Section JH4) ......................................................................................... 20 Erosional Thinning of Upper Pennsylvanian Rocks ........................................................................ 22 Fusulinid Biozones ............................................................................................................................................. 22 Profusulinella ............................................................................................................................................... 22 Fusulinella ..................................................................................................................................................... 22 Beedeina and Wedekindellina ................................................................................................................... 22 Eowaeringella ............................................................................................................................................... 22 Triticites ........................................................................................................................................................ 22 Page Wolfcampian Strata .................................................................................................................................... 23 Cañoncito de la Uva Section 2.3 Palo Duro Canyon Section ............................................................................................................ 24 Eastern Los Piños Section ............................................................................................................. 24 Ladron Mountains Outcrops ........................................................................................................ 24 Regional Relationships ................................................................................................................... 24 Section Near Coal Mine Canyon 24 Cañoncito Colorado (Section JH2) .............................................................................................. 25 Central Canyon (Section JH3) ....................................................................................................... 25 East Fork of South Canyon (Section JH4) 25 South Fork of South Canyon (Section JH5) ............................................................................... 25 Section JH6 (Near Hill 5129) ........................................................................................................ 25 North Fork of Rosa de Castillo Arroyo (Section JH7) ............................................................. 27 Location of the Joyita Axis ............................................................................................................ 27 GEOLOGIC HISTORY .......................................................................................................................... 28 Pennsylvanian Paleoenvironments ........................................................................................................ 29 Early Permian Wolfcampian Paleoenvironments ............................................................................... 29 PART II ABSTRACT ..................................................................................................................................................... 35 INTRODUCTION 35 SYSTEMATIC DESCRIPTIONS ............................................................................................................... 36 Superfamily Fusulinacea ............................................................................................................................. 36 Family Ozawainellidae ............................................................................................................................. 36 Genus Eostaffella Rauser-Chernousova