UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY The Geologic Map of Arkansas By Haley, B.R.; assisted by Glick, E.E., Bush, W.V., Clardy, B.F., Stone, C.G., Woodward, M.B., and Zachry, D.L. Digital Version By Gregory N. Green and James E. Queen 2000 This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey (USGS) editorial standard nor with the North American stratigraphic codes. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the USGS. Although these data have been used by the USGS and have been successfully imported into data base programs, no warranty, expressed or implied, is made by the USGS as to how successfully or accurately the data can be imported into any specific application software running on any specific hardware platform. The fact of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in connection therewith. U.S. Geological Survey Denver, Colorado Revised: 15 July, 1997 The Geologic Map of Arkansas by Haley, B.R.; assisted by Glick, E.E., Bush, W.V., Clardy, B.F., Stone, C.G., Woodward, M.B., and Zachry, D.L. Digital Version by Gregory N. Green and James E. Queen This database, identified as OF-97-0000, The Geologic Map of Arkansas [Digital Version], has been approved for release and publication by the Director of the USGS. Although this database has been subjected to rigorous review and is substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. Furthermore, it is released on condition that neither the USGS nor the United States Government may be held liable for any damages resulting from its authorized or unauthorized use. The database can be downloaded via 'anonymous ftp' from the USGS. The files are located on greenwood.cr.usgs.gov in a directory named /pub/arkansas The database manager is: Gregory N. Green U.S. Geological Survey Box 25046, Mail Stop 905 Denver, CO 80225 ggreen@usgs.gov (303) 236-5390 This database was developed on a Data General computer system using DG/UX Release 5.4R3.10 UNIX and ARC/INFO 7.0.3 software. The lineset and shadeset files are coded for a HP 650C plotter. This geologic map was prepared as a part of a continuing study of digital methods and techniques as applied to complex geologic maps. The digital geologic map was created from the orginal linework used to prepare the published paper Geologic Map of Arkansas (Haley 1993). Consequently the digital version is at 1:500,000 scale using the Lambert Conformal Conic map projection parameters of the state base map. The orginal line work was converted to an Arc/Info format by Rothtek of New Bedford, Mass. under the direction of Jim Queen of the USGS. The culture, thrust, type, contact and drainage linework coverages were placed in public electronic storage on the USGS anonymous FTP server, greenwood.cr.usgs.gov. Thanks to the foresight of Jim Queen, these data sets were preserved. That is where they were 'found' by Bruce Johnson of the USGS in 1997. In the spring of 1997 Greg Green started the work of converting the Arkansas Geologic Map to a spatial data base. These five digital plates were loaded into Arc/Info, registered, and transformed to scale. Only the geologic features were were attributed. The drainage and culture plates were not given any attributes. Minor editing was required to close polygons. Label points were created and these were tagged with the corresponding geologic attributes from the paper 1993 map. Two digital geologic plates were never found. These are the normal faults (thick black lines) and the Cretaceous igneous rocks (medium blue lines). The normal faults and igneous rocks were digitized into Arc/Info as separate coverages from the paper map. These will have errors. Not only were the layers copied from an unstable base, errors of ommisson must have occured. Bill Beeman's mapbar.aml is included with this data set to replace the orginal scale bar graphic. The map was converted to Adobe Portable Document File (PDF) format. To view the PDF files, Adobe Acrobat Viewer for nearly all platforms is available at http://www.adobe.com/acrobat. Acrobat allows the user to view the Arkansas Geologic Map without loading the data into ARC/INFO. The authors wish to thank Lawrence Brence, Jennifer Fowler and Tony Coehlo of Rothtek, Inc. for preparing the original digital line sets that were used in printing the 1993 version of the Geologic Map of Arkansas. * Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Limitations_of_Data: Scale is 1:500,000 and should not be used outside that range Directory contents: LOAD.AML Arc/Info commands to create the data bases. ARKANSAS.AML ARCPLOT commands that create a plot file of the geologic map from the data bases. CONTACT.E00 Contact coverage FAULT.E00 Normal fault coverage THRUST.E00 Thrust fault coverage IGNEOUS.E00 Igneous rock coverage TYPE.E00 Text, labels and credits LEGEND1.E00 Explantion coverage LEGEND2.E00 Addition text CULTURE.E00 Cultural layer DRAINAGE.E00 Hydrology ALC1.E00 Shadeset from Alacarte (Wentworth and Fitzgibbon, 1991) MAPBAR.AML ARCPLOT commands for the scale bar, courtesy of Bill Beeman, USGS. In order to use this database, ARC/INFO software and hardware and FTP transfer software to copy the database to the ARC/INFO platform are required. To install the database, run LOAD.AML. Linesets, shadesets, and fonts: The plot program ARKANSAS.AML uses one lineset, CARTO.LIN. As the AML runs, the line color and width are set by the INFO item COLOR. To produce polygons, ARKANSAS.AML uses the INFO item COLOR to panel fill based on colors in the ALC1.SHD shadeset. The colors used to panel fill are close to but in no way as rich or as sublte as the original print from 1993. This is a limitation of electronic printing No fonts are required. The text coverages TYPE and LEGEND2 contain all the lettering from the contractors plates. ARKANSAS.AML, the geologic map sheet aml, will produce an ARC graphic .gra of 34.7 by 52.9 inches. CONTACT, THRUST, FAULT, IGNEOUS and TYPE coverages: The Digital Arkansas Geologic Map is made of five spatial datasets. The map coverages are (1) contact, thrust, igneous, and fault, and (2) the type coverage. The type coverage contains vectors that are in the shape of words, graphics and symbols. Althought the scanned image was vectorized the text is easly readable. LEGEND1 coverage: The coorelation diagram was topologically structrured and attributed as coverage LEGEND1. Consequently the boxes were color filled with the coresponding color from the geologic map. LEGEND2, CULTURE AND DRAINAGE coverages: These coverages were not attributed. They are supplied as registered graphical background images. PROJECTION: Lambert Conformal Conic 1st standard parallel 33 00 00 2nd standard parallel 45 00 00 central meridian -92 00 00 base latitude 00 00 00 no false northing no false easting units are meters CODING SCHEME FOR ARC ATTRIBUTES: Several polygons and arcs were given the attribute unknown. These unknown lines and polygons ouccur along the Mississippi river. ITEM FEATURE P1 Shorthand attribute COLOR Line pattern from CARTO.LIN NAME Type of line Line Types and Attributes P1 Color Name -1 0 unknown 1 101 contacts 2 128 state borders 3 203 thrust faults 4 103 normal faults 5 107 dotted faults 6 402 Ki igneous rocks CODING SCHEME FOR POLYGON ATTRIBUTES: Line Types and Attributes P1 COLOR MAPCODE FORMATION SYSTEM ERA -1 0 unknown 101 133 Qcm Alluvium Quaternary Cenozoic 102 71 Qso Alluvial deposits Quaternary Cenozoic 103 900 Qt Terrace deposits Quaternary Cenozoic 104 472 Qds Dune sand Quaternary Cenozoic 105 416 Qss Silt and sand Quaternary Cenozoic 106 98 Ql Loess Quaternary Cenozoic 107 9 Qsg Sand and gravel Quaternary Cenozoic 108 133 Qal Alluvium Quaternary Cenozoic 109 470 Qat Alluvium and terrace deposits Quaternary Cenozoic 201 476 Tg Gravel Tertiary Cenozoic 202 474 Tj Jackson Group Tertiary Cenozoic 203 883 Tc Claiborne Group Tertiary Cenozoic 204 10 Tw Wilcox Group Tertiary Cenozoic 205 6 Tm Midway Group Tertiary Cenozoic 301 702 Ksc Sand and clay Cretaceous Mesozoic 302 701 Kr Cretaceous rocks Cretaceous Mesozoic 303 659 Kad Arkadelphia Marl Cretaceous Mesozoic 304 660 Kn Nacatoch sand Cretaceous Mesozoic 305 605 Ks Saratoga Chalk Cretaceous Mesozoic 306 356 Km Marlbrook Marl Cretaceous Mesozoic 307 606 Ka Annona Chalk Cretaceous Mesozoic 308 303 Ko Ozan Fm Cretaceous Mesozoic 309 630 Kb Brownstown Marl Cretaceous Mesozoic 310 77 Kto Tokio Fm Cretaceous Mesozoic 311 17 Kw Woodbine Fm Cretaceous Mesozoic 312 808 Kkg Kiamichi Fm and Goodland Ls Cretaceous Mesozoic 313 14 Kt Trinity Group Cretaceous Mesozoic 314 12 Kde De Queen Ls Cretaceous Mesozoic 315 13 Kdi Dierks Ls Cretaceous Mesozoic 316 52 Ki Igneous rocks Cretaceous Mesozoic 401 4 Pzi Olistoliths of Metagabbro +Soapstone-Serpentine Paleozoic 402 321 &a Atoka Fm, undivided Pennsylvanian Paleozoic 403 334 &bh Bloyd Sh and Prairie Grove Mbr of Hale Fm Pennsylvanian Paleozoic 404 120 &hc Cane Hill Mbr of Hale Fm Pennsylvanian Paleozoic 405 88 &by Boggy Fm Pennsylvanian Paleozoic 406 83 &sv Savanna Fm Pennsylvanian Paleozoic 407 84 &ma McAlester Fm Pennsylvanian Paleozoic 408 86 &hs Hartshorne Ss Pennsylvanian Paleozoic 409 493 &au Atoka Fm, upper part Pennsylvanian Paleozoic 410 532 &am Atoka Fm, middle part Pennsylvanian Paleozoic 411 492 &al Atoka Fm, lower part Pennsylvanian Paleozoic 412 66 &jv Johns Valley Sh Pennsylvanian Paleozoic 413 2 &j Jackfork Ss Pennsylvanian Paleozoic 501 865 Mpfb Pitkin Ls, Fayetteville Sh + Batesville Ss Mississippian Paleozoic 502 490 Mr Ruddell Sh Mississippian Paleozoic 503 523 Mm Moorefield Fm Mississippian Paleozoic 504 308 Mb Boone Fm Mississippian Paleozoic 505 302 Ms Stanley Sh Mississippian Paleozoic 506 554 MDa Arkansas Novaculite Miss +Devonian Paleozoic 507 665 MDcp Chattanooga Sh, Clifty Ls, + Penters Chert Miss +Devonian Paleozoic 601 27 Slsb Lafferty, St. Clair, and Brassfield Lms Silurian Paleozoic 602 29 Smb Missouri Mountain Sh + Blaylock Ss Silurian Paleozoic 701 122 Ocj Carson Sh, Fernvale Ls, Kimmswick Ls, + Joachim Dm Ordovician Paleozoic 702 131 Ose St. Peter Ss + Everton Fm Ordovician Paleozoic 703 279 Op Powell Dolomite Ordovician Paleozoic 704 91 Ocjc Cotter and Jefferson City Dm Ordovician Paleozoic 705 408 Opb Polk Creek Sh and Bigfoot Chert Ordovician Paleozoic 706 100 Ow Womble Sh Ordovician Paleozoic 707 95 Ob Blakely Ss Ordovician Paleozoic 708 320 Om Mazarn Sh Ordovician Paleozoic 709 732 Ocm Crystal Mountain Ss Ordovician Paleozoic 710 622 Oc Collier Sh Ordovician Paleozoic 999 151 H2O Water ARC/INFO is a trademark of Environmental Systems Research Institute. HPGL and HPGL/2 are trademarks of the Hewlett-Packard Company. DG/UX is a trademark of the Data General Corporation. UNIX is a trademark of UNIX System Laboratories, Inc. Other trademarks and service marks are the trademarks and service marks of their respective companies. Reference cited: Wentworth, C.M. and Fitzgibbon, T.T., 1991, ALACARTE users manual: U.S. Geological Survey Open-File Report 91-587C, 268 p. Haley, B.R.; assisted by Glick, E.E., Bush, W.V., Clardy, B.F., Stone, C.G., Woodward, M.B., and Zachry, D.L., 1993, Geologic Map of Arkansas: U.S. Geol. Survey, Special Geologic Map, scale 1:500,000.