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Open-File Report 97–470 H

DIGITAL GEOLOGIC AND GEOPHYSICAL DATA OF BANGLADESH


Compiled By  Feliks M. Persits1, Craig  J. Wandrey2,   Robert C. Milici3, and Abdullah Manwar4

1Contractor to the U.S.G.S.  MS 939, Box 25046, Denver Federal Center, Denver, CO 80225
2U.S. Geological Survey MS 939, Box 25046, Denver Federal Center, Denver, CO 80225
3U.S. Geological Survey MS 956, National Center, Reston, VA 20192
4Director General, Geological Survey of Bangladesh, 153 Pioneer Road, Segunbagicha, Dhaka 1000 

 
U.S. Geological Survey Open File Report 97-470H
2001

This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards and stratigraphic nomenclature. Any use of trade names is for descriptive purposes only, and does not imply endorsement by the U.S. government.

Portions of this database covering the coastline and country boundaries contain intellectual property of Environmental Systems Research Institute, Inc. (ESRI), and are used herein with permission.  End users are permitted to use these data for their own internal use, including any derivative work, but are prohibited from using and redistributing these data individually or in a derivative work to third parties.   This database contains intellectual property of National Imagery and Mapping Agency (NIMA). End users are permitted to use these data sets for their own internal use, including derivative work, but are prohibited from using and redistributing these data individually or in a derivative work to third parties,  ©1997 ,all rights reserved.


CONTACT INFORMATION

Inquiries about this CD-ROM  should be addressed to:

Craig Wandrey
U.S. Geological Survey MS 939
Box 25046
Denver Federal Center
Denver, CO 80225

Tel: 303-236-5341
Email: cwandrey@usgs.gov

Inquiries about the U.S. Geological Survey's World Energy Project should be addressed to:

Thomas S. Ahlbrandt (Coordinator, World Energy Project)
U.S. Geological Survey
Box 25046
Denver Federal Center
Denver, CO 80225

Tel: 303-236-5776
Email: ahlbrandt@usgs.gov


CONTENTS

Adobe Acrobat Reader 5.0 or later  is needed to view the geologic maps of  the Arctic in .pdf  format. 
If you do not already have Acrobat Reader version 5.0 or later, you may download the latest version here.
You can also download Acrobat Reader 5.0 from Adobe, Inc.  web site: 
http://www.adobe.com/products/acrobat/alternate.html

Preface

Introduction

Data Processing Steps

Primary References

About the ESRI Map Products

Downloadable GIS Data

Metadata

Open and Plot Maps in PDF format

View Interactive Maps (by ESRI, ArcIMS Copyright(C)1992-2002)

 

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PREFACE

This CD-ROM was compiled as part of the Bangladesh gas resources assessment conducted under the Participating Agency Service Agreement (PASA), signed between U.S. Agency of International Development (USAID) and the U.S. Department of Energy (DOE) - PASA No: 388-P-00-99-00026. The PASA provides for assistance to the natural gas sector pursuant to which the resources assessment was jointly carried  out. The PASA also allows for transfer of new technology, modeling practices and geoscience theory from existing and established  programs in the United States to the Government of Bangladesh, Petrobangla and Bangladesh academia.

The following people, with their responsibilities, were involved in producing this CD-ROM:

Geologic legend and general guidance - Robert Milici and Abdullah Manwar (Director General, Geological Survey of Bangladesh)
Compilation of the digital maps in Arc/Info - Feliks Persits
Geologic attribution - Feliks Persits
Implementation of metadata- Feliks Persits
Arcview project - Feliks Persits and Craig Wandrey
Map design and verification - Feliks Persits and Craig Wandrey
CD-ROM implementation - Feliks Persits
Coordination:  Robert Milici, Craig Wander, and Abdullah Manwar (Director General, Geological Survey of Bangladesh)

The authors gratefully acknowledge William S. Larson, U.S.Geological Survey, Denver, CO,  for his guidance and support
in producing the metadata and the CD-ROM design.
 

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INTRODUCTION

This CD-ROM was compiled according to the methodology developed by the U.S. Geological Survey's World Energy Project .  The goal of the project was to assess the undiscovered, technically recoverable oil and gas resources of the world and report these results by the year 2000.  A worldwide series of geologic maps, published on CD-ROMs, was released by the U.S. Geological Survey's World Energy Project during 1997 - 2000. 

Specific details of the data sources and map compilation are given in the metadata files on this CD-ROM. 

These maps were compiled using  Environmental Systems Research Institute Inc. (ESRI) ARC/INFO software.  Political boundaries and cartographic representations on this map are with permission from ESRI's ArcWorld 1:3M digital coverage: they have no political significance and are displayed as general reference only.  Portions of this database covering the coastline and country boundaries contain proprietary property of ESRI. (© 1992 and 1996, Environmental Systems Research Institute Inc. All rights reserved.)

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DATA PROCESSING STEPS
 

The maps on this CD-ROM were digitally compiled and abstracted from the following maps:

 Md. Khurshid Alam, A.K.M.Shahidul Hasan, and Mujibur Rahman Khan (Geological Survey of Bangladesh), and John W. Whitney  (United States Geological Survey), 1990, Geological Map of Bangladesh: Dhaka, Geological Survey of Bangladesh Publication, scale 1:1,000,000.

 M.A. Rahman, (Geological Survey of Bangladesh), H. R. Blank, M.D. Kleinkopf, and R. P.Kucks, (United States Geological Survey), 1990, Aeromagnetic Anomaly Map of Bangladesh:  Dhaka, Geological Survey of Bangladesh Publication, scale1:1,000,000.

M.A. Rahman, (Geological Survey of Bangladesh),  M.A. Mannan, (Bangladesh Petroleum Exploration Company), H. R. Blank, M.D. Kleinkopf, and R. P. Kucks, (United States Geological Survey),1990, Bouguer Gravity Anomaly Map of Bangladesh: Dhaka, Geological Survey of Bangladesh Publication, scale 1:1,000,000.
 

The following process steps were involved:

1. Original paper map was scanned on a large format (Ideal) scanner in color mode, using resolution of 200 dot per inch.
2. The scanned image was transformed to Lambert Conformal projection by using REGISTER and RECTIFY utilities of ESRI's ArcInfo.
3. Reference points for transformation were latitude-longitude crosses taken from original map compared with the same crosses as projected to Lambert via the ArcInfo PROJECT utility.  Overall RMS error of transformation was 250 m (0.25 mm on original map).
4. On-screen digitization of geological contacts or contour lines was performed using a rectified image as a backdrop via ArcInfo ARCEDIT. Labels were applied and attributed as the linework was digitized, using special ArcInfo AML menus and scripts.
5. Geologic attributes were assigned to the GLG item of the Feature Attribute Table (FAT) for the geology coverage.
6. Test map sheets were produced in Arcplot, using AML scripts.
7. Base map data layers - rivers, lakes, cities - were digitized as separate coverages.
7. All the ArcInfo coverages were converted into .E00 files, then imported into ArcView via the IMPORT 71 utility and saved as shape files.

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ESRI ARCVIEWPROJECT

You must have Arcview 3.2 installed on your computer
to access the Arcview project on the CD-ROM.
 

                                      There are two Views Groups in bangla.apr:

1. Geologic Map Group
2. Base Maps and Petroleum Data

The first View Group contains three separate Views:

1. Geological Map of Bangladesh
2. Geophysical Data of Bangladesh
3. Shaded Relief of Geophysical Fields

The second View Group contains one View - Base Maps and Petroleum Data.

 Selected themes in the first two views, the Geological Map of Bangladesh and the Geophysical Data of Bangladesh, contain a Hot Links to images with explanatory text taken from the original paper maps.
List of ArcView themes utilizing Hot Links:

1. Surface Geology - most of unique values in the legend.
2. Reference 
3. Magnetic Map Discussion
4. Gravity Map Discussion.

The last three are special Hot links themes.  Turn them off when printing one of the Aeromagnetic 
Anomaly or Bouguer Gravity Anomaly layouts.

To use Hot Links, do the following:
1. Turn theme on and activate it (by clicking on its legend).
2. Select Hot Link icon from the Tool menu.
3. Double click on selected feature and wait until a popup window emerges.
4. Enlarge popup window by selecting and dragging its corner.
ArcView uses its own Image Viewer in Hot Link script "Link.ImageFile".
It allows images to be viewed on any Windows platform. But some of the TIF images in Hot Links
may be distorted and difficult to read. You may need to load the selected image separately 
into the more powerful Image Viewer available on your Windows system.

  Metadata files contain specific information on each theme in each view.
 

DATA DIRECTORIES on the CD-ROM

Acread50           Adobe Acrobat Reader 5.0 software

ArcExp20     ArcExplorer software.
                                 Entire directory can be copied.

metadata     Metadata for spatial data shape files included on this disk

permssn       Permissions to distribute data contained on this CD-ROM

plots             Plot files to produce maps featured on this CD-ROM

bangla           Arcview 3.2 shape files and legend files for Windows/95/98/NT/2000 are listed with Metadata.
                                 Entire directory can be downloaded by clicking: Download GIS Data

images          Images in TIFF format containing text from original maps.
                                 Connected to ArcView project by Hot Link feature.
                                 Can be opened by Image Viewer or Image processing software.

bangla.apr         ArcView project file

bangla_geo.aep  ArcExplorer project file.

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PRIMARY REFERENCES
  • Md. Khurshid Alam, A.K.M.Shahidul Hasan, and Mujibur Rahman Khan  (Geological Survey of Bangladesh), and John W. Whitney  (United States Geological Survey), 1990, Geological Map of Bangladesh: Dhaka, Geological Survey of Bangladesh Publication, scale 1:1,000,000.
  • M.A. Rahman, (Geological Survey of Bangladesh), H. R. Blank, M.D. Kleinkopf, and R. P.Kucks, (United States Geological Survey), 1990,  Aeromagnetic Anomaly Map of Bangladesh: Dhaka, Geological Survey of Bangladesh Publication, scale1:1,000,000.
  • M.A. Rahman, (Geological Survey of Bangladesh),  M.A. Mannan, (Bangladesh Petroleum Exploration Company), H. R. Blank, M.D. Kleinkopf, and R. P. Kucks, (United States Geological Survey), 1990, Bouguer Gravity Anomaly Map of Bangladesh: Dhaka, Geological Survey of Bangladesh Publication,  scale 1:1,000,000.
  • Craig J. Wandrey and Ben E. Law, 1998, Map Showing Geology, Oil and Gas Fields, and Geologic Provinces of South Asia:  U.S.Geological Survey Open File Report 97-470C (CD-ROM) .
    http://energy.cr.usgs.gov/energy/WorldEnergy/WEnergy.html
  • U.S. Geological Survey World Energy Assessment Team, 2000, World Petroleum Assessment 2000 - Description and Results: US Geological Survey Digital Data Series DDS-60 Multi-Disc Set.
    http://energy.cr.usgs.gov/energy/WorldEnergy/WEnergy.html
  • Environmental Systems Research Institute Inc., 1995, ArcWorld Supplement Digital Map of the World: ESRI, Redlands CA,  scale 1:3,000,000
     
     

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