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A Scientific Approach to Developing Geological Information Systems Alistair Ritchie, GeoScience Victoria.

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Presentation on theme: "A Scientific Approach to Developing Geological Information Systems Alistair Ritchie, GeoScience Victoria."— Presentation transcript:

1 A Scientific Approach to Developing Geological Information Systems Alistair Ritchie, GeoScience Victoria

2 Developing Geological Information Systems Co-authors Bruce Simons– GeoScience Victoria Linda Bibby– GeoScience Victoria Gavin Stilgoe – MPD Information Development Acknowledgements Boyan Brodaric– Geological Survey of Canada Bruce Johnston– US Geological Survey Brett Miller– MPD Information Development Stephen Richard – Arizona and US Geological Surveys

3 Developing Geological Information Systems Introduction Redesigned geological information systems Address data management problems Outline the development of a solution

4 Developing Geological Information Systems The Problem Databases designed to store data for maps Creates “free text” problem Significant duplication of data Difficult to use for analytical purposes

5 Developing Geological Information Systems Sandstone, slate: moderately to well sorted, variably rounded quartz with minor feldspar and lithic grains in quartz silt or clay matrix; minor quartz granule conglomerate; thin to very thick bedded; black fossiliferous …

6 Developing Geological Information Systems Our Solution 1.Geological data model 2.Build data storage and management services 3.Client systems

7 Developing Geological Information Systems Conceptual Model Foundation for our work Adopted the North American Data Model Robust geological approach Technology-neutral GeologicalUnit

8 Developing Geological Information Systems Logical Model Content constrained by North American Data Model GSV requirements Analysis of existing systems Data exchange standards GeologicalFeature GeologicalUnit -induration: QualifiedTerm -freshColour: QualifiedTerm -landform: QualifiedTerm -morphology: QualifiedTerm -outcropCharacter: QualifiedTerm -petrophysics: GUPetrophysics [0..*] -weatheredColour: QualifiedTerm -weatheringCharacter: QualifiedTerm ::GeologicalFeature -descriptionPurpose: TermValue -genesis: GeologicalEvent [0..*] {ordered} -product: TermValue [0..*] -project: TermValue -source: Source [1..*] -textDescription: String(255) [0..1]

9 Developing Geological Information Systems

10 Geological Concepts

11 Developing Geological Information Systems Geological Relationships

12 Developing Geological Information Systems Geological Features

13 Developing Geological Information Systems Geological Properties

14 Developing Geological Information Systems Spatial Representation

15 Developing Geological Information Systems Ywp LITHDESC: Hornblende-biotite quartz diorite and quartz monzonite, hornblende-biotite basalt, hornblende- augite-biotite quartz gabbro, kaersutite- phlogopite peridotite: fine-grained, hydrothermal alteration common; fresh but often weathered to orange sandy clay Old System

16 Developing Geological Information Systems Ywp Unb New System Ywp-Unb : GeologicalConceptRelationship type = intrusive relationship participant01Role = Ywp: intrudes participant02Role = Unb: intruded by Ywp :GeologicalUnit type = Lithodemic Unit name = Ywp - Woods Point Dyke Swarm rank = intrusion stratNo = 20527 Ywp :GeologicalUnitFeature physicalCharacter = morphology: dyke Ywp :CompoundMaterial lithology = basaltic rock consolidationDegree = consolidated colour = 5YR61 weatheringCharacter = fresh Ywp :GUComponentPart proportion = 95% role = part of +composition +description +material

17 Developing Geological Information Systems Ywp Unb New System Ywp :GeologicalUnit type = Lithodemic Unit name = Ywp - Woods Point Dyke Swarm rank = intrusion stratNo = 20527 Ywp :GeologicalUnitFeature physicalCharacter = morphology: dyke Ywp :CompoundMaterial lithology = basaltic rock consolidationDegree = consolidated colour = 5YR61 weatheringCharacter = fresh Ywp :GUComponentPart proportion = 95% role = part of +composition +description +material GeologicalConceptRelationship type = intrusive relationship participant01Role = Ywp: intrudes participant02Role = Unb: intruded by Ywp-Unb :

18 Developing Geological Information Systems Ywp Unb New System Ywp :GeologicalUnit type = Lithodemic Unit name = Ywp - Woods Point Dyke Swarm rank = intrusion stratNo = 20527 Ywp :GeologicalUnitFeature physicalCharacter = morphology: dyke Ywp :CompoundMaterial lithology = basaltic rock consolidationDegree = consolidated colour = 5YR61 weatheringCharacter = fresh Ywp :GUComponentPart proportion = 95% role = part of +composition +description +material GeologicalConceptRelationship type = intrusive relationship participant01Role = Ywp: intrudes participant02Role = Unb: intruded by Ywp-Unb :

19 Developing Geological Information Systems Ywp Unb New System Ywp :GeologicalUnit type = Lithodemic Unit name = Ywp - Woods Point Dyke Swarm rank = intrusion stratNo = 20527 Ywp :GeologicalUnitFeature physicalCharacter = morphology: dyke Ywp :CompoundMaterial lithology = basaltic rock consolidationDegree = consolidated colour = 5YR61 weatheringCharacter = fresh Ywp :GUComponentPart proportion = 95% role = part of +composition +description +material GeologicalConceptRelationship type = intrusive relationship participant01Role = Ywp: intrudes participant02Role = Unb: intruded by Ywp-Unb :

20 Developing Geological Information Systems Information Systems Services Data Storage Clients

21 Developing Geological Information Systems Data Storage Single logical database ArcSDE stores spatial representations Oracle stores geological data

22 Developing Geological Information Systems Data Storage Single logical database ArcSDE stores spatial representations Oracle stores geological data

23 Developing Geological Information Systems Data Storage Single logical database ArcSDE stores spatial representations Oracle stores geological data

24 Developing Geological Information Systems Services Layer Data management Presentation Data delivery

25 Developing Geological Information Systems Services Layer Data management Presentation Data delivery

26 Developing Geological Information Systems Services Layer Data management Presentation Data delivery

27 Developing Geological Information Systems Services Layer Data management Presentation Data delivery

28 Developing Geological Information Systems Client Systems Project specific Web browser ArcGIS External GIS applications Industry/Public systems …

29 Developing Geological Information Systems Client Systems Project specific Web browser ArcGIS External GIS applications Industry/Public systems …

30 Developing Geological Information Systems Client Systems Project specific Web browser ArcGIS External GIS applications Industry/Public systems …

31 Developing Geological Information Systems Conclusions Redesigned geological information systems Data storage based on “real” geology Reusable multi-purpose data Reduced impact of software changes Data delivery in standardised, open formats

32 Developing Geological Information Systems QUESTIONS?

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