Elevation and ickness of the Ordovician Arbuckle Group in Oklahoma and Surrounding States

Transcription

1 Oklahoma Geological Survey Jeremy Boak, Director Open-File Report Elevation and ickness of the Ordovician Arbuckle Group in Oklahoma and Surrounding States January 218 Oklahoma Geological Survey The University of Oklahoma Norman, Oklahoma 218 1

2 Oklahoma Geological Survey Open-File Report Disclaimer Open-File Reports are intended to make the results of research that fills a public need available at the earliest possible date. Because of the possibility of that information being superseded by more complete research results, an Open-File Report is intended as a preliminary report not as a final publication. Analyses presented in this article are based on information available to the author(s), and do not necessarily represent the views of the Oklahoma Geological Survey, the University of Oklahoma, their employees, or the State of Oklahoma. The accuracy of the information contained herein is not guaranteed and any mention of trade names is not an endorsement by the author, the Oklahoma Geological Survey, or the University of Oklahoma. The Oklahoma Geological Survey is a state agency for research and public service, mandated in the State Constitution to study Oklahoma s land, water, mineral and energy resources and to provide wise use and sound environmental practices.

3 OPEN-FILE REPORT ELEVATION AND THICKNESS OF THE ORDOVICIAN ARBUCKLE GROUP IN OKLAHOMA AND SURROUNDING STATES INTRODUCTION This Open-File Report (OF) is the second in a series of 16 that shows shaded relief maps of the top and bottom digital elevation model (DEM) grids for stratigraphic units in Oklahoma, Kansas, and parts of Nebraska, Iowa, Missouri, Arkansas, and Texas. Isopach maps from which these DEM grids were derived are also included, along with lithofacies in some instances. Each map covers the area from 41. degrees to 34.5 degrees north-south and -94. degrees to -12. degrees east-west. The Open-File Reports are published as layered PDFs that contain individual map pages with map layers that can be turned on or off. They are available in PDF and GIS formats. In each of the 16 Open-File Reports, Plate 1 shows the top elevation of the unit; Plate 2 shows the bottom elevation of the unit; and Plate 3 shows the thickness of the unit. In OF through OF , Plate 3 also shows the lithofacies of the unit. The lithofacies maps are taken from Rascoe and Hyne (1988) and use a simple four component carbonate-clastic binary phase diagram with vertical lithology boundaries. The colors represent the relative amount of clastics and carbonates in the rocks. Rocks with a high percentage of clastics are colored yellow, and rocks with a high percentage of carbonates are blue. DESCRIPTION OF shows the shaded relief map of the top (Plate 1) and bottom (Plate 2) digital elevation model (DEM) grids of the Ordovician Arbuckle Group rocks, as well as the unit s thickness (Plate 3), in Oklahoma and surrounding states. The Arbuckle Group overlies crystalline basement rocks and underlies the Ordovician Simpson Group. Within the mapped area, the Arbuckle Group thickens to the south in the Anadarko and Arkoma Basins, with an abrupt truncation to the southwest from the Amarillo Uplift and Southern Oklahoma Aulacogen, and pinches out to the north as it approaches the Central Kansas and Uplifts. METHODS Data used to create the shaded relief maps for the series of 16 Open-File Reports include: 16 isopach maps from Petroleum Geology of the Mid-Continent (PGM; Rascoe and Hyne, 1988), which depict the thicknesses of sedimentary strata from the topographic surface to the crystalline basement (Table 1), and National Elevation Dataset (NED) surface topography

4 Each of the 16 PGM isopach maps were digitally scanned and georeferenced to geographic coordinates at the NAD83 datum and later projected to the Albers Equal-Area Conic projection of the same datum. The contour lines of each isopach map were then digitized and attributed with their corresponding thickness values. The digitized isopach thickness data were then gridded and co-registered with the National Elevation Dataset (NED) topography. Starting with the shallowest stratum (Triassic and Cretaceous Systems), the isopach thickness grid was subtracted from the NED topography to get the bottom elevation grid for that stratum; alluvium and terrace deposits were not factored into the model. By definition, the resultant bottom elevation grid is also the top elevation grid of the next lower stratum (Guadalupian Series). This workflow was repeated for each isopach thickness map in sequence until the top of the crystalline basement was reached. For example, the isopach thickness for the Guadalupian Series was subtracted from the top elevation grid of the Guadalupian Series to get the bottom elevation grid for the Guadalupian Series as well as the top elevation grid for the Leonardian Series. Due to the map scale, there are no elevation contours for the outcrop topography. The subcrop grid is at a scale of 3 arcseconds. INTENTION These elevation models were originally produced to visualize 3D geology and aid in geophysical research. The tops and bottoms of each unit constrain the upper and lower bounds, respectively, of the density distribution within the sedimentary strata of a regional gravity model. The data presented here may also be useful for other subsurface investigations, such as geoengineering, petrophysical, or hydrogeologic applications. ACKNOWLEDGEMENTS I would like to thank Julie Chang and Jake Walter for their editorial assistance; Jim Anderson and Russell Standridge for their work preparing the PDF publication; and Randy Keller and RPSEA for funding this endeavor. REFERENCES Rascoe, B., Jr., and Hyne, N.J., eds., 1988, Petroleum Geology of the Mid-Continent: Tulsa Geological Society Special Publication No. 3, 162 p.

5 Table 1. Open-File Report number (OF No.) and corresponding PGM isopach maps for units listed stratigraphically from oldest to youngest. OF No. Unit Series Age PGM Plate No. Page OF Precambrian Basement Precambrian 2 5 OF 2-218* Arbuckle Group Ordovician 8 35 OF Simpson Group Ordovician 9 39 OF Viola Limestone Ordovician 1 47 OF Sylvan Shale Ordovician OF Hunton Group Silurian OF Woodford Shale Devonian OF Pre-Chesterian Mississippian Rocks Mississippian OF Chesterian Series Mississippian 16 8 OF Morrowan Series Pennsylvanian OF Atokan and Desmoinesian Series Pennsylvanian OF Missourian and Virgilian Series Pennsylvanian OF Wolfcampian Series Permian OF Leonardian Series Permian OF Guadalupian Series Permian OF Triassic and Cretaceous Systems Triassic and Cretaceous * This publication

6 Sebastian Franklin Barry Lawrence Cedar Lafayette Caldwell Daviess Harrison Perkins Dundy Cheyenne Sherman Wallace Greeley Kearny Hamilton Hugonton Embayment Stanton Morton Texas Wichita Stevens -1-1 Rawlins Thomas Hayes Hitchcock -15 Seward Finney Gove Lane Meade Beaver Frontier Red Willow Decatur Sheridan Mills Montgomery Adams Union Dawson Buffalo Hall Hamilton York Seward Lancaster Fremont Ringgold Page Taylor Otoe Gosper Phelps Adams Nodaway Kearney Fillmore Worth Atchison Gage Gentry Furnas Harlan Franklin Webster Nuckolls Thayer Jefferson Richardson Holt Norton Central Kansas Uplift Graham Trego Ford Ness Hodgeman -3 Clark Phillips Rooks Rush -6-7 Anticline N E B R A S K A Salina Basin Smith Osborne Russell K A N S A S Edwards Stafford Barber Woods Alfalfa Reno Kingman Midcontinent Rift Sedgwick Sumner Kay Butler Cowley Uplift Greenwood Woodson Elk Forest City Basin AndrewDe Kalb Republic Doniphan Jewell Marshall Brown Buchanan Atchison Clinton Cloud Platte Pottawatomie Jackson Ray Mitchell Riley Jefferson Wyan- dotte Shawnee Jackson Geary Douglas Dickinson Wabaunsee Morris Ellsworth Miami Franklin Lyon McPherson Rice Marion Bates Coffey Anderson Linn Harvey Wilson Allen Craig Labette Montgomery Cherokee Chautauqua Nowata I O W A Leavenworth Bourbon Neosho M I S S O U R I Vernon Dade Saint Clair Henry Jasper Newton McDonald Sherman Hansford Moore Hutchinson -2 Potter Amarillo Uplift Carson Randall Armstrong Swisher T E X A S Briscoe -11 Ochiltree Lipscomb Roberts Collingsworth Donley Hall Hemphill Wheeler -8-9 Anadarko Basin Roger Mills Beckham Woodward Dewey Custer Washita Southern Oklahoma Aulacogen Greer Harmon Childress Jackson Tillman Major Blaine Caddo Canadian Garfield Kingfisher Arbuckle Mtn. Uplift Grady McClain Stephens Noble O K L A H O M A -98 Oklahoma Cleveland Garvin Payne Pottawatomie Murray Pontotoc Creek Okfuskee Arch Albers Equal-Area Conic projection; NAD 83 datum Contour: Elevation in feet OF 2-218, PLATE 1 Top Elevation of Arbuckle Group by -4-5 Hughes Coal Tulsa Okmulgee Rogers -6 Pittsburg Atoka Mayes Wagoner Cherokee Adair Muskogee McIntosh Arkoma Basin Latimer Pushmataha Delaware -95 Sequoyah Le Flore Benton A R K A N S A S Polk Miles Kilometers Index map showing outline of study area After Petroleum Geology of the Mid-Continent, Plate 8, p. 35

7 Kingman -9-1 Woodward -12 Roberts -14 Anadarko Basin -16Dewey Hemphill Roger Mills Ama r illo Carson Uplif Potter t Wheeler Beckham Swisher Collingsworth Donley Briscoe Blaine Kingfisher Hall Childress Washita O laco klaho gen m a Jackson Index map showing outline of study area Nem aha Rogers Okfuskee OF 2-218, PLATE 2 Bottom Elevation of Arbuckle Group by After Petroleum Geology of the Mid-Continent, Plate 8, p. 35 in Bas oma rk A Atoka Polk Pushmataha Le Flore Latimer 6-1 Coal Murray Pittsburg Pontotoc Garvin Stephens Benton Sequoyah McIntosh le o in m ch Se ArHughes McClain -25 Mayes Wagoner Cherokee Adair Creek Muskogee -2 Okmulgee Albers Equal-Area Conic projection; NAD 83 datum Contour: Elevation in feet Oklahoma M Arb Cleveland tn uc. U kl pl e Grady ift Tillman -11 Upli ft O K L A H O M A Sou Harmon McDonald Tulsa Nowata Craig Payne Canadian t Au Noble Garfield -34 Greerhern Kay Jasper Newton -1 Major Caddo TEXAS Randall Armstrong Custer Alfalfa -2 Lipscomb Moore Hutchinson Woods Vernon Labette Montgomery Cherokee Chautauqua -15 Ochiltree Cowley Sumner -5 Sherman Hansford Wilson Neosho -4-8 Beaver Bourbon Elk Texas Bates Butler Barber -Linn 1 Barry -6 Franklin Clark Coffey Anderson Meade Seward Franklin Miami Greenwood Woodson Allen Pottawatomie gon Hu Stevens Sedgwick Anticline -5 Morton Jackson Harvey Marion Reno Edwards Ford 5 Wyandotte Douglas Wabaunsee Stafford -4 Shawnee 4 Buchanan Clinton Platte Ray -1 Lyon Hodgeman Dickinson Morris McPherson -35 Jefferson Geary Rice Finney Kearny Doniphan Atchison Ness Mid Em Lane -3 ton Ellsworth -2 Rush Hamilton Stanton Rift KANSAS Greeley Russell Riley -15 Trego cont ba ym Gove Wichita Brown Pottawatomie Jackson -2 s sa an K lif t Up -25 Cloud Mitchell Osborne inen t al Rooks Graham Sheridan Andrew De Kalb -3 Republic Marshall Jewell Smith -3 r nt Thomas ent Phillips -3 Norton -25 Decatur -2 Ce Wallace 5-1 Rawlins Sherman Gentry Holt Richardson Salina Basin Caldwell Daviess Harrison -2 4 Worth Fores in Bas Gage Harlan Franklin Webster Nuckolls Thayer Jefferson Furnas Nodaway Atchisont City Ringgold -25 Lafayette Saint Clair Henry Lawrence Dade Cedar Fillmore NEBRASKA Hitchcock Red Willow Cheyenne Kearney Adams Gosper Phelps -15 Dundy Frontier Hayes -2 A O WTaylor IPage -4 Fremont Otoe MISSOURI Seward -1 Lancaster York Hamilton ARKANSAS -15-2Hall Buffalo Sebastian Dawson Union Mills Montgomery Adams Perkins -1 Delaware -11 Leavenworth Miles 12 Kilometers

8 Sebastian Franklin Barry Lawrence Cedar Lafayette Caldwell Daviess Harrison Perkins Dundy Cheyenne Sherman Wallace Greeley Kearny Hamilton Hugonton Embayment Stanton Morton Texas Wichita Stevens Rawlins Thomas Hayes Hitchcock 1 Seward 15 Gove 5 5 Finney Lane Meade Beaver Frontier Red Willow Decatur Sheridan Mills Montgomery Adams Union Dawson Buffalo Hall Hamilton York Seward Lancaster Fremont Ringgold Page Taylor Otoe Gosper Phelps Adams Nodaway Kearney Fillmore Worth Atchison Gage Gentry Furnas Harlan Franklin Webster Nuckolls Thayer Jefferson Richardson Holt Norton Central Kansas Uplift Graham Trego Ness Hodgeman Ford Clark Phillips N E B R A S K A Rooks Rush Salina Basin Smith Osborne Russell K A N S A S Edwards Anticline Stafford Barber Woods Alfalfa Reno Kingman 1 Midcontinent Rift Sedgwick Sumner Kay Butler Cowley Uplift Elk 5 5 Greenwood Woodson Wilson Forest City Basin AndrewDe Kalb Republic Doniphan Jewell Marshall Brown Buchanan Atchison Clinton Cloud Platte Pottawatomie Jackson Ray Mitchell Riley Jefferson Wyan- dotte Shawnee Jackson Geary Douglas Dickinson Wabaunsee Morris Ellsworth Miami Franklin Lyon McPherson Rice Marion Bates Coffey Anderson Linn Harvey Allen Labette Montgomery Cherokee Chautauqua Nowata I O W A Leavenworth Craig Bourbon Neosho 1 M I S S O U R I Vernon Dade Saint Clair Henry Jasper Newton McDonald Potter 1 1 Sherman Hansford Moore Hutchinson 1 Amarillo Uplift Carson Randall Armstrong Swisher T E X A S Briscoe Ochiltree Lipscomb Roberts Collingsworth Donley Hall Hemphill Wheeler Anadarko Basin 2 Roger Mills Beckham Woodward Dewey Custer Washita Southern Oklahoma Aulacogen Greer Harmon Childress Jackson Tillman Major Blaine Caddo Canadian Garfield Kingfisher Arbuckle Mtn. Uplift Grady McClain Stephens Noble O K L A H O M A -98 Oklahoma Cleveland Garvin Payne Pottawatomie 3 Murray Pontotoc 6 Albers Equal-Area Conic projection; NAD 83 datum Contour: Thickness in feet Creek Okfuskee Arch OF 2-218, PLATE 3 Thickness of Arbuckle Group by Hughes Coal Tulsa Okmulgee Rogers Pittsburg Atoka -96 Mayes Wagoner Cherokee Adair Muskogee McIntosh Arkoma Basin Latimer Pushmataha Delaware -95 Sequoyah Le Flore Benton A R K A N S A S Polk Miles Kilometers Index map showing outline of study area After Petroleum Geology of the Mid-Continent, Plate 8, p. 35