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.