1_README.TXT Long Valley Coring Project, Inyo County, California, 1998- Preliminary Stratigraphy and Images of Recovered Core By Penelope C. Sackett(1), Vicki S. McConnell(2), Angela L. Roach(3), Susan S. Priest(1) and John H. Sass(1) Open-File Report 99-158 1999 This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey (USGS) editorial standards or with the North American Stratigraphic Code. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. U.S. DEPARTMENT OF THE INTERIOR U.S. GEOLOGICAL SURVEY (1) U.S. Geological Survey, 2255 North Gemini Drive, Flagstaff, AZ 86001-1698 (2) Oregon Department of Geology and Mineral Industries, 1831 First Street, Baker City, OR 97184-3442 (3) Hawaii Institute of Geophysics and Planetology, 2525 Correa Road, Honolulu, HI 96822-2219 ISBN: 0-607-92342-3 QUICK START For those already familiar with Adobe Acrobat Reader and who have version 3.0 or higher and a JPG viewer on their computer, go directly to the file OF99_158.PDF. ABOUT THE COVER The Long Valley Exploratory Well as viewed from the south. Set among Jeffrey pines, this image shows the placement of LVEW on the resurgent dome within the Long Valley Caldera. This Photo was taken July 23, 1998 during Phase III of the Long Valley Coring Project. U.S. Geological Survey photograph by Penelope C. Sackett. DISCLAIMERS This Compact Disc Read-Only-Memory (CD-ROM) publication was prepared by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness or usefulness of any information, apparatus, product, or process disclosed in this report, or represents that its use would not infringe on privately owned rights. Reference therein to any specific commercial product, process, or service, by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. Although all data and software published on this CD-ROM have been used by the USGS, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and related materials and (or) the functioning of the software. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of this data, software, or related materials. ABSTRACT Phase III of the Long Valley Exploratory Well, the Long Valley Coring Project, obtained continuous core between the depths of 7,180 and 9,831 ft (2,188 to 2,996 meters) during the summer of 1998. This CD-ROM contains a compendium of information designed to facilitate post-drilling research focussed on the study of the core. Included are a preliminary stratigraphic column compiled primarily from field observations and a general description of well lithology for the Phase III drilling interval. Also included are high-resolution digital photographs of every core box (10 feet per box) as well as scanned images of pieces of recovered core. The user can easily move from the stratigraphic column to corresponding core box photographs for any depth. From there, compressed, "unrolled" images of the individual core pieces (core scans) can be accessed. Those interested in higher-resolution core scans can go to archive CD-ROMs stored at a number of locations specified herein. All core is stored at the USGS Core Research Center in Denver, Colorado where it is available to researchers following the protocol described in this report. Preliminary examination of core provided by this and the archive CD-ROMs should assist researchers in narrowing their choices when requesting core splits. CD STRUCTURE This CD contains core box photographs, core scans, and a preliminary stratigraphic column of LVEW Phase III. The core box photographs were taken with a Kodak digital still camera and downloaded onto the Long Valley Coring Project computer system. The core scans were produced using a DMT CoreScan. This apparatus rolls a piece of core along its long axis while collecting a continuous digital image, thus producing a planar image of the outer surface of the core. The optimal way to view the images on this CD is through the PDF file using Adobe Acrobat Reader, supplied on the CD. Navigation through the PDF file should begin with the stratigraphic column. The column is shown on 6 pages with 440 feet on each page. On the left side of the column are the depth intervals and on the right are a series of box numbers and brackets which designate the section of core contained in each box. To zoom in on the stratigraphic column, choose the magnifying glass tool and click over the desired section. To zoom out, choose "zoom out" under the tool section of the menu bar. To view a box photo, use the hand tool and click on the desired box number which is highlighted blue, the document will automatically go to the corresponding box photo page. To view a core scan, use the hand tool to choose from the series of core scans listed underneath the box photo which are also highlighted blue. Clicking on a core scan number will launch a viewer application that will allow you to view the JPG image. An alternative method of viewing the images is to open the image files directly from the directory structure on the CD. The first level of the directory structure is based on depth. Each directory spans 50-foot intervals. Inside each depth directory are two sub-directories: "BOX_PHOT" for the box photos and "CORE_SCA" for the core scans. Within the box photo subdirectory are JPG images of each core box. Within the core scan subdirectory are subdirectories for each core run (increasing numerical sequence of recovered core) and within these are the JPG images of the core scans. The condition of some of the core runs was such that they were unscannable. The subdirectories representing these runs therefore contain only an explanatory file called "NO_DATA.TXT". Because the core scans and box photos do not always coincide with the exact 50-foot interval assigned to the directories, these core scans and box photos are included in adjacent directories. Please note that depths were measured from the floor of the drill rig Kelly bushing, which was 30 feet above the actual surface of the ground. SYSTEM REQUIREMENTS This CD-ROM (OF99_158) was produced in accordance with the ISO 9660 Level 2 standard and Apple Computer's(1) hierarchical file system (HFS) standard. The data and text on this CD-ROM require either a UNIX work station, Macintosh(1) or compatible computer, or an IBM(2) or compatible personal computer, all equipped with a CD-ROM drive. Macintosh - 68030 or higher processor (PowerPC recommended) - 8 megabytes RAM (64 MB recommended) - Apple System Software version 7.1.2 or later (8.1 or later recommended) - 13-inch color monitor that can display 256 colors (16.7 million colors recommended) Windows - 80386 or higher processor (Pentium(3) recommended) - Microsoft Windows(4) 3.1 or higher (Windows 95, 98, or NT recommended) - 8 megabytes RAM (64 MB recommended) - VGA color monitor that can display 256 colors (16.7 million colors recommended). All platforms - Adobe Acrobat(5) Reader 3.0 or higher (3.01 and 4.0 included on this disc for Macintosh and Windows) or other software that can translate PDF files -Software that can view JPG image files. For more information on viewing JPG files, see section below on opening JPG files. Registered Trademarks (1) Apple Computer and Macintosh, Apple Computer, Inc. (2) IBM, International Business Machines, Corp. (3) Intel, Corp. (4) Microsoft, Corp. (5) Adobe Systems, Inc. (6) Netscape Communications, Corp. TO GET STARTED: On a Macintosh, double-click on the CD-ROM icon and double- click on the file 1_README.TXT. On a PC system with Windows, open Notepad or a word-processing application, change to the CD-ROM device, and open the file 1_README.TXT. On a UNIX work station, mount the CD. If you are unsure about the process of mounting CDs on the work station, see your system administrator for instructions. Once the CD is mounted, use your preferred ASCII text editor or web browser to open the file 1_README.TXT. PORTABLE DOCUMENT FORMAT (PDF) FILES This disc contains a Portable Document Format (PDF) file for viewing the report with Adobe Acrobat Reader 3.0 or higher. This PDF contains hyperlinks (outlined text) that allow you to jump to other parts of the document and to open the JPG files on the disc. To make best use of this CD-ROM, you will need to develop some familiarity with Acrobat Reader; an on- line guide is available within Acrobat Reader under "Help." The ACROBAT directory contains installers for Adobe Acrobat Reader 3.01 (ACROBAT3 subdirectory) and 4.0 (ACROBAT4 subdirectory) for both Windows (PC directories) and Macintosh (MAC directories). Acrobat 3.01 will run on the minimum system requirements for this disc given above. To use Acrobat Reader 4.0 under Windows, you need an 80486 or Pentium processor-based personal computer, Microsoft Windows 95, Windows 98, or Windows NT 4.0 with Service Pack 3 or later, 8 MB of RAM on Windows 95 and Windows 98 (16 MB recommended), or 16 MB of RAM on Windows NT (24 MB recommended). To use Acrobat Reader 4.0 on a Macintosh, you need a Power Macintosh computer. Acrobat Reader 3.01 includes a search engine (not used with the data on this disc); the search engine for Acrobat Reader 4.0 will be available in the summer of 1999. You can use the installers provided on this disc or download the latest version of Adobe Acrobat Reader free via the World Wide Web from the Adobe homepage on the at http://www.adobe.com/. OPENING JPG FILES Most computer systems can open JPG files using existing software (eg. drawing programs or a web browser). Following are instructions for configuring Windows, Macintosh, or UNIX systems to open JPG files. Windows users: Double-click the JPG file and select the application from the choices displayed. If a viewing application does not automatically launch, use the process outlined below. Open Windows Explorer, select "View", select "Folder Options", select the "File Types" tab, and scroll down and see if "JPEG Image" is present. If so, select "Edit..." from Edit File Type, select "Edit" again, select "Application used to perform action", select "Browse", and navigate to the application of your choice. Web browsers such as Netscape Navigator/Communicator or Microsoft Internet Explorer will work or you can use drawing or image processing applications such as Adobe Photoshop, or Photoworks Darkroom. If "JPEG Image" is not present in the "File Types tab", select "New Type..." and fill in the dialog box. "Description of type" is "JPEG Image", "Associated extension" is ".jpg", "Content Type" is "image/jpg", "Default Extension for Content Type" is ".jpg". For the "Actions" window, select the "New..." button. Under "Action" enter "open", under "Application used to perform action" select "Browse", and navigate to the application of your choice. Macintosh users: Double-click the JPG file and select the application from the choices displayed. Alternatively, you can simply "drop launch" the file. JPG files can also be opened from within applications that can view JPGs such as Netscape Navigator, Microsoft Internet Explorer, Adobe Photoshop, Aaron Giles' JPEGView, Kevin Mitchell's GIFConverter, Storm Software's EasyPhoto. In these, as in other Macintosh applications, files are opened by selecting File, Open, navigating to the file to be opened, and clicking Open. UNIX users: Double-click the JPG file. This will automatically open the preferred JPG viewer on your UNIX work station.