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GUIDE TO OZROX
AGSO's FIELD GEOLOGY
RJ. RYBURN, L.D. BOND & M.S. HAZELL
GUIDE TO OZROX
AGSO's FIELD GEOLOGY DATABASE
R.J. Ryburn, L.D. Bond and M.S. Hazell
AUSTRALIAN GEOLOGICAL SURVEY ORGANISATION
DEPARTMENT OF PRIMARY INDUSTRIES AND ENERGY
Minister for Resources: Hon. David BeddalI, MP Secretary: Greg Taylor
AUSTRALIAN GEOLOGICAL SURVEY ORGANISATION
Executive Director: Neil Williams
Commonwealth of Australia 1995
ISSN: 1039-0073 ISBN: 0 642 22387 4
This work is copyright. Apart from any fair dealings for the purposes of study, research, criticism or review, as permitted under the Copyright Act 1968, no part may be reproduced by any process without written permission. Copyright is the responsibility of the Executive Director, Australian Geological Survey Organisation. Requests and inquiries concerning reproduction and rights should be directed to the Principal Information Officer, Australian Geological Survey Organisation, GPO Box 378, Canberra City, ACT, 2601.
CONTENTS ABSTRACT ii 1 INTRODUCTION 1 2 HARDWARE AND SOFTWARE ENVIRONMENT 1 3 AGSO's GEOLOGICAL DATABASE SYSTEM 1 4 STRUCTURE OF OZROX 3 5 SECURITY AND ACCESS 5 6 CONSTRAINTS AND TRIGGERS 8 7 SITE AND SAMPLE IDENTIFICATION 9 8 OZROXMENUS 10 9 SITES FORM 13 10 OUTCROPS FORM 22 11 MEASURED SECTIONS AND DRILL HOLES FORM 26 12 ROCKS AND STRUCTURES FORM 36 13 STRUCTURES FORM 46 14 STRATIGRAPIDC LEXICON FORM 47 15 GEOLOGICAL PROVINCES FORM 52 16 GEOLOGICAL TIME SCALE FORM 54 17 LITHOLOGY NAMES FORM 57 18 1:100000 MAPS FORM 59 19 ACKNOWLEDGMENTS 61 20 BmLIOGRAPHY 61 APPENDIX A - OZROX DATABASE DEFINITIONS 66 APPENDIX B - RULES AND TRIGGERS 82 Australian Geological Survey Organisation 1995 - Guide to OZROX
OZROX is a corporate AGSO Oracle database designed to accommodate five main categories of field geological infonnation - site location data, outcrop infonnation, measured sections and drill-holes, lithologies and rock samples, and structural geology observations. OZROX acts as the hub for a number of sample-centred laboratory databases, such as petrography, whole-rock geochemistry and isotopic age determin-ations. Other databases, like mineral deposits, regolith-terrain mapping and stream-sediment geochemistry, link to the sites component of the field database. In addition, links have been set up to the National Petroleum Database, the STRATDAT bio-stratigraphic database, and the new Rock Store Database.
Wherever possible, the data entered are controlled by the means of lookup tables or databases, to facilitate the presentation of data with geographic infonnation systems and other computer applications. For example, fonnation names are tied to the Australian Stratigraphic Names Database, geological time terms are validated by a GEOTIME table, and mineral names are validated by an AGSO list of mineral names and abbreviations. Without such rigorous validation of input data it is difficult to use the database for automated analysis and presentation of data.
This guide presents an overview of the database, and describes in detail the menus and screen fonns used to input and view the data. In particular, the definitions of most fields in the database are given in some depth under descriptions of the screen forms -providing, in effect, a data dictionary of the database. The database schema, with all definitions of tables, views and indexes is contained in Appendix A.
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1 . INTRODUCTION
The OZROX Field Geology Database accommodates five main categories of field geological data - site locations, outcrops, measured sections and drill holes, lithologies and samples, and structural geology readings. It records much of what AGSO geologists normally write in their field notebook, but in an organised way that lends itself to automated methods of data manipulation and presentation. Structured notebooks for use with the database have been printed (Blewett 1993). The database has also been designed to mesh with geographic information systems (GIS) such as AGSO's ArclInfo system (Chopra & Ryburn 1993, 1994a, b).
This guide describes the infrastructure of the OZROX Field Geology Database. It supersedes an earlier guide to the 'NGMA Field Database' (Ryburn et al. 1993). Details of the structure and workings of the database, its main screen forms and the purpose of all fields are given. The full OZROX schema is listed in Appendix A.
2 HARDWARE AND SOFTWARE ENVIRONMENT
Together with the majority of AGSO's attribute geoscience databases, OZROX is implemented on AGSO's corporate database management system, which is Oracle 7 running on a DG AViiON 6250 server under the UNIX 5.4 operating system. It is accessible throughout AGSO via a TCPIIP Ethernet backbone, which is bridged to seven local Novell PC LANs. At the PC level Novell's 'LAN Workplace for DOS' provides VT220 terminal emulation. Database entry and query forms are generated centrally from the A ViiON server via Oracle Forms 3. This system is now changing to graphical client/server applications in Oracle Forms 4.5, or later, running on PCs with Microsoft Windows, Apple Macintoshes and UNIX X-Windows workstations.
AGSO's Oracle system has been set up with two instances - 'Test' and 'Production'. The Test environment is used mainly for development purposes, and has only a small subset of the OZROX dataset. OZROX users are' only concerned with the Production version of the database. Full explanations of the hardware and software environment were presented for users by Lenz et al. (1993), and for developers by Kucka (1994).
3 AGSO's GEOLOGICAL DATABASE SYSTEM
AGSO's Geological Database System (Fig. 1) consists of a number of field and laboratory databases that surround the OZROX Field Geology Database and share resources such as the Australian Stratigraphic Names Database (Ryburn et al. 1995) and the AGSOREFS Bibliographic Reference Database (Ryburn & Bond 1995). Originally set up by what is now the Division of Regional Geology and Minerals
Australian Geological Survey Organisation 1995 - Guide to OZROX
(RGM) in collaboration with Information Services Division (ISD) (Ryburn et al. 1993), the system is increasingly used by other divisions in AGSO. The system was designed and constructed by the National Geoscience Database Development Project, which is a part of lSD's National Geoscience Information System (NGIS) Program.
OZROX acts as the nucleus of the Geological Database System. Some databases, like OZMIN mineral deposits (Ewers & Ryburn 1993), RTMAP regolith landform mapping (Hazell et al. 1995) and STREAMCHEM stream sediment geochemistry link directly to point location data in the SITES table in OZROX. Other databases, like PETROG petrography (Ryburn et al. 1994c), OZCHRON geochronology (Ryburn et al. 1993b) ROCKCHEM whole-rock geochemistry (Ryburn 1990, Hazell et al. 1995) and Rock Store are linked to OZROX via data in the ROCKS table.
Figure 1. Simplified diagram of AGSO's Geological Database System
The rationale for establishing a corporate geological database system is to ensure that all field and laboratory data are stored in a manner that is secure, ordered, accessible and cost-effective, and in a form that will be compatible with future methods of data analysis, distribution and presentation. Ways of distributing such data are currently undergoing a revolution, with the rapid acceptance of the Internet and the World Wide Web as the de-facto standards for on-line public access. By using a mainstream corporate relational database management system (RDBMS) like Oracle we can be confident that secure public access will be easily provided in future systems. We anticipate that most data in OZROX will soon be publicly accessible on AGSO's World Wide Web server, and in spatial formats. We expect that the user will be able to generate in real time, and at different scales, maps with site and sample information. These, in tum, will point to laboratory data that can be purchased -eventually via the Web, using automated charging methods.
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4 - STRUCTURE OF OZROX
The OZROX Field Geology Database now has seven main data tables - SITES, OUTCROPS, SECTHOLES, INTERIZONS, ROCKS, LITHDATA and STRUCTURES. All other tables indicated in Figure 2 below are lookup or authority tables used to validate the classifications and nomenclature used in the main tables :-
Figure 2. The structure of OZROX showing relationships between tables, with 'crows' feet' at the many end of many-to-one linkages. The rounded boxes represent databases used to validate the data in OZROX.
The hub of the field database is the SITES table, which standardises the way point location data are recorded and ensures that the accuracy and lineage of coordinates are noted. This is logically linked to the OUTCROPS and ROCKS tables via the Originator Number and Site ID (see Section 5). The OUTCROPS table stores data at the outcrop level, including links to the STRATDAT biostratigraphic database. The SECTHOLES table has data on measured sections and drill holes and INTERIZONS (intervals and horizons) their columnar geological logs. The ROCKS and LITHDATA tables record lithologies and samples taken. LITHDATA is the
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expandable attributes table for ROCKS - linked, via an automatically generated keyknown as Rockno. Validation of stratigraphic units and geological provinces isacco