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INTRODUCING THE
FROGNET RIGID PLATE
RECONSTRUCTION MODEL
A BASEMENT TERRANE MODEL
PaleoGIS and PaleoClimate
Users Conference
5 November 2014
Marie-Aude Bonnardot
Lynn Pryer
Jane Blevin
• FROGTECH are global experts in processing geophysical datasets,
structural and tectonic interpretations, basin analysis and resource
assessment.
• FROGTECH’s basement and geodynamic specialists have global expertise
in mapping basement terranes and tectonostratigraphic provinces.
• SEEBASE™ is a depth-to-basement model and FROGTECH’s signature
product. It stands for Structurally Enhanced view of Economic
BASEment.
FROGTECH
WHO WE ARE AND WHAT WE DO
Australia-based
Geological consultancy
OZ Proterozoic SEEBASE™
Structural Enhanced View of Economic BASEment
Geological calibration
Integration
Interpretation of
non-seismic and seismic data
SEEBASE™ Structurally Enhanced view of Economic Basement
Bottom-Up
Approach
FROGTECH’S
BASEMENT APPROACH
TECTONIC HISTORY
Precambrian and Phanerozoic
Basement Evolution and Assembly
Plate Reconstructions
Tectonic Events and Response
BASIN PHASES
Petroleum Systems and Play Evaluation
Sediment Provenance and Supply
Palaeogeography
Stratal Geometry
Accommodation history
BASEMENT GEOLOGY
Terranes Type and Age
Composition
Structure
Crustal Architecture
Heat Flow
BASIN ARCHITECTURE
SEEBASE™ depth-to-basement
Structural Analysis
Bottom-Up
Approach
FROGTECH’S
BASEMENT APPROACH
What is a “Basement Terrane” ?
 “……. a discrete, mappable, structurally bounded block of
crust of regional extent with a tectonostratigraphic history
different to that of neighbouring terranes.” (e.g. Jones et al.,
1977; Howell, 1995).
FROGTECH has also subdivided
terranes based on rheological
differences within a terrane.
Why focus on “Basement” ?
 Foundation onto which sediments are deposited.
 Basement terranes provide essential information
to understand basin evolution and petroleum
systems elements, including basin geometry, rate
of subsidence, heat flow distribution, maturation
history, migration pathways and distribution of
reservoir and source rocks.
GLOBAL TERRANES
TERRANES INTERPRETATION
How to interpret “Basement Terranes” ?
Outcropping or deeply buried basement, onshore or offshore basement
Cross-section and DEM
Lithology Maximun Stratigraphic Age
Surface Geology
Compilation and georeferencing of published data, i.e
cross-sections, structural maps, surface geology….
• Data Compilation, Data Processing and Grid Stitching
• Spectral Analysis and Grid Enhancement
• Standard and Proprietary Filters
• Gravity and Magnetic Modelling
GLOBAL TERRANES
TERRANES INTERPRETATION
Potential field data to assess geometry and physical properties
GLOBAL TERRANES
TERRANES INTERPRETATION
• Tectonic event information over wide areas can
help to identify terranes that are equivalent in
age and composition, i.e. analogous parts of
conjugate margins
 Correlation of Terranes
Africa
S America
Type
Accreted Arc
Accretion Complex
Craton
Highly Attenuated
Undifferentiated Continental
Restoration of South America against Africa
(Africa fixed).
 South America is colored by terranes type.
 High-Pass 300km of the Bouguer gravity is
shown in Africa with terranes outlines.
DEM: SW Pacific, South and Indian oceans
GLOBAL TERRANES
TERRANES INTERPRETATION
Example
Global Free Air Gravity
GLOBAL TERRANES
TERRANES INTERPRETATION
Example
Terrane analysis
GLOBAL TERRANES
TERRANES INTERPRETATION
Example
Proterozoic OZ SEEBASE™ and
New Zealand ECS SEEBASE™
GLOBAL TERRANES
TERRANES INTERPRETATION
Example
FROGNET
RIGID PLATE
RECONSTRUCTION
MODEL
R & D
PLATE POLYGONS
ROTATIONS
• 1996 - present
Global interpretation of basement terranes, plate reconstructions and
development of tectonic events database including basin response.
• 2006 - 2012
In-house development of the FROGTECH Global Terranes Database including
an events database. In-house plate reconstructions and joint development of
PaleoArc with Cambridge Paleomap Services Ltd.
• 2013-14: Product Release
2013: Release of the FROGTECH Global Terranes Database and GIS
2014: Import of FROGNet Plate Model into PaleoGIS
2015: Release of FROGNet Plate Model for multi-client subscription
RESEARCH AND DEVELOPMENT
FROGNet
Plate Model
FROG NET RIGID PLATE MODEL
Terrane Type
Accreted Arc
Accretion Complex
Accretionary Wedge
Continental Arc
Craton
Cratonised Arc
Forearc-Accretionary Wedge
Highly Attenuated
Island Arc
Oceanic Crust
Oceanic Plateau
Ophiolite
Transitional
Transitional magmatic
Transitional non-magmatic
Undifferentiated Continental
Undifferentiated Orogenic Belt
FROGNet plate polygons are subdivisions of basement terranes
Approx. 1500 continental fragments
Approx. 1250 oceanic fragments
Plate Polygons Symbology
Craton
Continental - Undifferentiated
Extended Crust
Oceanic Plateau
Ophiolite
Oceanic Crust
FROGNET PLATE POLYGONS AND
GLOBAL TERRANES DATABASE
Global Terranes
Database
FROGNet Plate
Polygons
Approx. 1300 continental fragments
Approx. 160 oceanic fragments
FROGNET ROTATIONS
Re-adjustment of published rotations
based on FROGTECH knowledge of
tectonostratigraphic provinces
+
Global Terranes Database, including revised LOC
+
=
FROGNet Rigid Plate Model
Rotation Chains
Published paleomagnetic data and relative motion
Oceanic Magnetic Anomalies
Workflow
TECTONIC HISTORY
Precambrian and Phanerozoic
Basement Evolution and Assembly
Plate Reconstructions
Tectonic Events and Response
BASEMENT GEOLOGY
Terranes Type and Age
Composition
Structure
Crustal Architecture
Heat Flow
 Obtain the most accurate position of plates through time
FROGNET ROTATIONS
Relative and
Absolute
Paleopositions,
Paleolatitudes
-
Intraplate
Deformation
AF
MAD
AUS
ANT
NZ ?
What is the main challenge in plate reconstruction?
BENEFITS
OF THE
FROGNET
RIGID PLATE
RECONSTRUCTION
MODEL
PALEOGEOGRAPHY
INTRAPLATE
DEFORMATION
TERRANE ANALYSIS
A high resolution terrane map
to refine paleopositions
• Complete geological
description of plates provides
more constraints to improve
relative paleopositions.
• Mimic deformation processes:
 Change of plate geometry at
megaterrane scale based on
basement terrane
information, i.e. terrane
maximum age
Example-1
PALEOGEOGRAPHY
A high resolution terrane map to refine paleopositions
• Mimic deformation processes:
 Distribute intraplate deformation across several terranes and better
control gaps and overlaps inherent to rigid plate models – provide
higher resolution to understand basin phases
Example-2
INTRAPLATE DEFORMATION
Dolomitised Carbonate
Platform Margin
Carbonate Platform
r
r
r
r
r
r
r
r
IRAN
IRAQ
THE
GULF
KUWAIT
Restricted basin
filled with
source rocks
and evaporites
TURKEY
Late Permian-Early Triassic
Oceanic Crust
(Neotethys)
Radiolarites
0 200
km
S
Dolomitised
carbonate platform
Restricted basin with
bituminous carbonates
and evaporites
Outer
carbonate
platform
Rift basin
Radiolarites
+
carbonate
turbidites
Stretched
continental
crust
Oceanic
crust
Arabian Plate
Mid-Late Jurassic paleogeographic
reconstruction for NE Arabian Plate
from Goff (2006) showing
deposition within a restricted,
evaporitic basin with source rocks
overlain by evaporites.
Terrane analysis
• Can be used to predict variations in basement rheology during identified
tectonic events. For example, mobile belts tend to strain-soften while
cratonic blocks tend to strain-harden. This leads to strain partitioning and
strain localisation into mobile belt terranes.
TERRANE ANALYSIS
Hercynian reactivated faults
N
Hercynian Event
Hercynian subcrop map of North
Africa from Boote et al (1998)
showing the regional pattern of
Hercynian “arches” (in pink) and
reactivated basement structures
Example-3
Terrane analysis
• Provides a complete revision of the Limit of Oceanic Crust (LOC), with
transitional margins wider than previously interpreted.
• Combined with additional methodologies, such as seismic interpretation
and gravity modelling, the terrane analysis provides new insights on key
mechanisms that control margin development, i.e. distribution of hyper-
extended margin
TERRANE ANALYSIS
Plate Tectonic
Events, Kinematics
Basin Architecture &
Evolution
Paleogeography
Terrane
Boundaries
Composition
Fabric
TERRANES
Total Sediment
Thickness
Migration Pathways
& Fluid Focusing
Reservoir & Seal
Quality
Trap Timing, Size & Distribution
Maturity + Hydrocarbon
Generation
PETROLEUM PLAY ELEMENTS
FROGNET IN
PALEOGIS
DATA
TERRANES
ATTRIBUTES
TIME SLICES
Standard PaleoGIS fields
• Plate Code
• Appearance / Disappearance Age
• Plate Name
• Basic Symbology
FROGNET MODEL
DATA
Default Layers
• Countries
• Coastlines
• Coordinates grid
Basement Terranes fields
• Terrane Type
• Stratigraphic Minimum Age
• Minimum Age (Ma)
• Stratigraphic Maximum Age
• Maximum Age (Ma)
• Basement Age (Ma)
• Interpretation Information
(dataset used)
• Abstract
• References
• Megaterrane
*Provided as Layer files with pre-defined symbology
FROGNET MODEL
TERRANE ATTRIBUTES
• Terrane Type*
• Stratigraphic Minimum Age*
• Minimum Age (Ma)*
• Stratigraphic Maximum Age*
• Maximum Age (Ma)*
• Basement Age (Ma)*
• Interpretation Information
(dataset used)
• Abstract
• References
• Megaterrane*
Bowers
The Bowers Terrane comprises the
Cambrian Glasgow Group of primitive
volcanic arc affinity (>2km of mafic-
intermediate volcanics and gabbros)
grading up into a thinner (~200m)
regressive marine sequences of the Molar
and Mariner Groups (from limestones to
sandstones) spanning the Middle – Upper
Cambrian (Ferracioli et al., 2002). The top
of the sequence is formed by the Late
Cambrian Leap Year Group, comprising
<4km of continent-derived sandstones and
conglomerates (Tessensohn & Henjes-
Kunst, 2005). The terrane is separated from
the Wilson terrane by the Lanterman Fault
suture (Ultra-mafic rocks, HP-UHP
metamorphic rock) and from the Robertson
Bay terrane by the Leap Year fault marked
by the Millen Schist Belt. Accretion and
suturing at the East Antarctica Craton
margin is usually related to subduction
during the Early Paleozoic Ross Orogen.
The Bowers terrane has been intruded by
the Devonian – Early Carboniferous
Admiralty Suite of calc-alkaline I-type
intrusives (Ferracioli et al., 2002).
Abstract
FROGNET MODEL
TERRANE ATTRIBUTES
Type
Accreted Arc
Accretion Complex
Continental Arc
Craton
Cratonised Arc
Forearc-Accretionary Wedge
Highly Attenuated
Island Arc
Oceanic Crust
Oceanic Plateau
Transitional magmatic
Transitional non-magmatic
Undifferentiated Orogenic Belt
Minimum Stratigraphic Age
Basement Stratigraphic Age
Maximum Stratigraphic Age
Megaterranes
Basement Terranes Fields
• The FROGNet Rigid Plate Model includes 25 Time slices that describe the
geodynamic setting in a reconstructed space.
• In the 2015 release, the time slices include:
• Tectonic Events Database: tectonic events are shown on the relevant
time slices. Each tectonic event is fully documented with a unique name,
maximum/minimum age, event age, category, technical abstract and
references.
• Tectonic Boundaries: interpreted for each time slice and derived from the
basement terranes and tectonic events databases.
• The 2016 release will also include:
• Paleostresses at terrane scale
• Terrane type through time.
FROGNET MODEL
TIME SLICES
CONCLUSIONS
• Geology-driven plate model
• Detailed integration and interpretation of georeferenced
scientific datasets (geological maps, potential field
datasets, wells, seismic data)
• Quick access to global summary of key characteristics of
basement terranes/plate polygons (type, age, major
composition, tectonostratigraphic history)
 Enhances understanding of the relationship between
basement terranes, the overlying sedimentary basins and
their mineral and petroleum resources
CONCLUSIONS
FROGNet Rigid Plate Model
• Terranes add a rheological component to the plate model and
provides a first pass assessment of stress partitioning and strain
localisation.
CONCLUSIONS
Terrane Type
• Rotations in the models cover the
Phanerozoic (0 to 540Ma)
• Terranes are interpreted and
described up to the Precambrian, i.e.
useful for Precambrian mineral
systems and rising interest for
unconventionals.
FROGNET RELEASE
FROGTECH Pty Ltd
Suite 17F, Level 1
2 King Street
Deakin West ACT 2600
T +61 (0)2 6283 4800
F +61 (0)2 6283 4801
E info@frogtech.com.au
W frogtech.com.au
Contacts:
Marie-Aude Bonnardot, PhD
Senior Geoscientist
Jane Blevin, PhD
CEO and Business Development
Lynn Pryer, PhD
Principal Geoscientist

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Introducing the FROGNet Rigid Plate Model: A Basement Terranes Reconstruction Model - 2014 PaleoGIS & PaleoClimate Users Conference - Marie-Aude Bonnardot

  • 1. INTRODUCING THE FROGNET RIGID PLATE RECONSTRUCTION MODEL A BASEMENT TERRANE MODEL PaleoGIS and PaleoClimate Users Conference 5 November 2014 Marie-Aude Bonnardot Lynn Pryer Jane Blevin
  • 2. • FROGTECH are global experts in processing geophysical datasets, structural and tectonic interpretations, basin analysis and resource assessment. • FROGTECH’s basement and geodynamic specialists have global expertise in mapping basement terranes and tectonostratigraphic provinces. • SEEBASE™ is a depth-to-basement model and FROGTECH’s signature product. It stands for Structurally Enhanced view of Economic BASEment. FROGTECH WHO WE ARE AND WHAT WE DO Australia-based Geological consultancy
  • 3. OZ Proterozoic SEEBASE™ Structural Enhanced View of Economic BASEment
  • 4. Geological calibration Integration Interpretation of non-seismic and seismic data SEEBASE™ Structurally Enhanced view of Economic Basement Bottom-Up Approach FROGTECH’S BASEMENT APPROACH TECTONIC HISTORY Precambrian and Phanerozoic Basement Evolution and Assembly Plate Reconstructions Tectonic Events and Response BASIN PHASES Petroleum Systems and Play Evaluation Sediment Provenance and Supply Palaeogeography Stratal Geometry Accommodation history BASEMENT GEOLOGY Terranes Type and Age Composition Structure Crustal Architecture Heat Flow BASIN ARCHITECTURE SEEBASE™ depth-to-basement Structural Analysis
  • 5. Bottom-Up Approach FROGTECH’S BASEMENT APPROACH What is a “Basement Terrane” ?  “……. a discrete, mappable, structurally bounded block of crust of regional extent with a tectonostratigraphic history different to that of neighbouring terranes.” (e.g. Jones et al., 1977; Howell, 1995). FROGTECH has also subdivided terranes based on rheological differences within a terrane. Why focus on “Basement” ?  Foundation onto which sediments are deposited.  Basement terranes provide essential information to understand basin evolution and petroleum systems elements, including basin geometry, rate of subsidence, heat flow distribution, maturation history, migration pathways and distribution of reservoir and source rocks.
  • 6. GLOBAL TERRANES TERRANES INTERPRETATION How to interpret “Basement Terranes” ? Outcropping or deeply buried basement, onshore or offshore basement Cross-section and DEM Lithology Maximun Stratigraphic Age Surface Geology Compilation and georeferencing of published data, i.e cross-sections, structural maps, surface geology….
  • 7. • Data Compilation, Data Processing and Grid Stitching • Spectral Analysis and Grid Enhancement • Standard and Proprietary Filters • Gravity and Magnetic Modelling GLOBAL TERRANES TERRANES INTERPRETATION Potential field data to assess geometry and physical properties
  • 8. GLOBAL TERRANES TERRANES INTERPRETATION • Tectonic event information over wide areas can help to identify terranes that are equivalent in age and composition, i.e. analogous parts of conjugate margins  Correlation of Terranes Africa S America Type Accreted Arc Accretion Complex Craton Highly Attenuated Undifferentiated Continental Restoration of South America against Africa (Africa fixed).  South America is colored by terranes type.  High-Pass 300km of the Bouguer gravity is shown in Africa with terranes outlines.
  • 9. DEM: SW Pacific, South and Indian oceans GLOBAL TERRANES TERRANES INTERPRETATION Example
  • 10. Global Free Air Gravity GLOBAL TERRANES TERRANES INTERPRETATION Example
  • 12. Proterozoic OZ SEEBASE™ and New Zealand ECS SEEBASE™ GLOBAL TERRANES TERRANES INTERPRETATION Example
  • 13. FROGNET RIGID PLATE RECONSTRUCTION MODEL R & D PLATE POLYGONS ROTATIONS
  • 14. • 1996 - present Global interpretation of basement terranes, plate reconstructions and development of tectonic events database including basin response. • 2006 - 2012 In-house development of the FROGTECH Global Terranes Database including an events database. In-house plate reconstructions and joint development of PaleoArc with Cambridge Paleomap Services Ltd. • 2013-14: Product Release 2013: Release of the FROGTECH Global Terranes Database and GIS 2014: Import of FROGNet Plate Model into PaleoGIS 2015: Release of FROGNet Plate Model for multi-client subscription RESEARCH AND DEVELOPMENT FROGNet Plate Model
  • 15. FROG NET RIGID PLATE MODEL
  • 16. Terrane Type Accreted Arc Accretion Complex Accretionary Wedge Continental Arc Craton Cratonised Arc Forearc-Accretionary Wedge Highly Attenuated Island Arc Oceanic Crust Oceanic Plateau Ophiolite Transitional Transitional magmatic Transitional non-magmatic Undifferentiated Continental Undifferentiated Orogenic Belt FROGNet plate polygons are subdivisions of basement terranes Approx. 1500 continental fragments Approx. 1250 oceanic fragments Plate Polygons Symbology Craton Continental - Undifferentiated Extended Crust Oceanic Plateau Ophiolite Oceanic Crust FROGNET PLATE POLYGONS AND GLOBAL TERRANES DATABASE Global Terranes Database FROGNet Plate Polygons Approx. 1300 continental fragments Approx. 160 oceanic fragments
  • 17. FROGNET ROTATIONS Re-adjustment of published rotations based on FROGTECH knowledge of tectonostratigraphic provinces + Global Terranes Database, including revised LOC + = FROGNet Rigid Plate Model Rotation Chains Published paleomagnetic data and relative motion Oceanic Magnetic Anomalies Workflow TECTONIC HISTORY Precambrian and Phanerozoic Basement Evolution and Assembly Plate Reconstructions Tectonic Events and Response BASEMENT GEOLOGY Terranes Type and Age Composition Structure Crustal Architecture Heat Flow
  • 18.  Obtain the most accurate position of plates through time FROGNET ROTATIONS Relative and Absolute Paleopositions, Paleolatitudes - Intraplate Deformation AF MAD AUS ANT NZ ? What is the main challenge in plate reconstruction?
  • 20. A high resolution terrane map to refine paleopositions • Complete geological description of plates provides more constraints to improve relative paleopositions. • Mimic deformation processes:  Change of plate geometry at megaterrane scale based on basement terrane information, i.e. terrane maximum age Example-1 PALEOGEOGRAPHY
  • 21. A high resolution terrane map to refine paleopositions • Mimic deformation processes:  Distribute intraplate deformation across several terranes and better control gaps and overlaps inherent to rigid plate models – provide higher resolution to understand basin phases Example-2 INTRAPLATE DEFORMATION Dolomitised Carbonate Platform Margin Carbonate Platform r r r r r r r r IRAN IRAQ THE GULF KUWAIT Restricted basin filled with source rocks and evaporites TURKEY Late Permian-Early Triassic Oceanic Crust (Neotethys) Radiolarites 0 200 km S Dolomitised carbonate platform Restricted basin with bituminous carbonates and evaporites Outer carbonate platform Rift basin Radiolarites + carbonate turbidites Stretched continental crust Oceanic crust Arabian Plate Mid-Late Jurassic paleogeographic reconstruction for NE Arabian Plate from Goff (2006) showing deposition within a restricted, evaporitic basin with source rocks overlain by evaporites.
  • 22. Terrane analysis • Can be used to predict variations in basement rheology during identified tectonic events. For example, mobile belts tend to strain-soften while cratonic blocks tend to strain-harden. This leads to strain partitioning and strain localisation into mobile belt terranes. TERRANE ANALYSIS Hercynian reactivated faults N Hercynian Event Hercynian subcrop map of North Africa from Boote et al (1998) showing the regional pattern of Hercynian “arches” (in pink) and reactivated basement structures Example-3
  • 23. Terrane analysis • Provides a complete revision of the Limit of Oceanic Crust (LOC), with transitional margins wider than previously interpreted. • Combined with additional methodologies, such as seismic interpretation and gravity modelling, the terrane analysis provides new insights on key mechanisms that control margin development, i.e. distribution of hyper- extended margin TERRANE ANALYSIS Plate Tectonic Events, Kinematics Basin Architecture & Evolution Paleogeography Terrane Boundaries Composition Fabric TERRANES Total Sediment Thickness Migration Pathways & Fluid Focusing Reservoir & Seal Quality Trap Timing, Size & Distribution Maturity + Hydrocarbon Generation PETROLEUM PLAY ELEMENTS
  • 25. Standard PaleoGIS fields • Plate Code • Appearance / Disappearance Age • Plate Name • Basic Symbology FROGNET MODEL DATA Default Layers • Countries • Coastlines • Coordinates grid
  • 26. Basement Terranes fields • Terrane Type • Stratigraphic Minimum Age • Minimum Age (Ma) • Stratigraphic Maximum Age • Maximum Age (Ma) • Basement Age (Ma) • Interpretation Information (dataset used) • Abstract • References • Megaterrane *Provided as Layer files with pre-defined symbology FROGNET MODEL TERRANE ATTRIBUTES • Terrane Type* • Stratigraphic Minimum Age* • Minimum Age (Ma)* • Stratigraphic Maximum Age* • Maximum Age (Ma)* • Basement Age (Ma)* • Interpretation Information (dataset used) • Abstract • References • Megaterrane*
  • 27. Bowers The Bowers Terrane comprises the Cambrian Glasgow Group of primitive volcanic arc affinity (>2km of mafic- intermediate volcanics and gabbros) grading up into a thinner (~200m) regressive marine sequences of the Molar and Mariner Groups (from limestones to sandstones) spanning the Middle – Upper Cambrian (Ferracioli et al., 2002). The top of the sequence is formed by the Late Cambrian Leap Year Group, comprising <4km of continent-derived sandstones and conglomerates (Tessensohn & Henjes- Kunst, 2005). The terrane is separated from the Wilson terrane by the Lanterman Fault suture (Ultra-mafic rocks, HP-UHP metamorphic rock) and from the Robertson Bay terrane by the Leap Year fault marked by the Millen Schist Belt. Accretion and suturing at the East Antarctica Craton margin is usually related to subduction during the Early Paleozoic Ross Orogen. The Bowers terrane has been intruded by the Devonian – Early Carboniferous Admiralty Suite of calc-alkaline I-type intrusives (Ferracioli et al., 2002). Abstract FROGNET MODEL TERRANE ATTRIBUTES Type Accreted Arc Accretion Complex Continental Arc Craton Cratonised Arc Forearc-Accretionary Wedge Highly Attenuated Island Arc Oceanic Crust Oceanic Plateau Transitional magmatic Transitional non-magmatic Undifferentiated Orogenic Belt Minimum Stratigraphic Age Basement Stratigraphic Age Maximum Stratigraphic Age Megaterranes Basement Terranes Fields
  • 28. • The FROGNet Rigid Plate Model includes 25 Time slices that describe the geodynamic setting in a reconstructed space. • In the 2015 release, the time slices include: • Tectonic Events Database: tectonic events are shown on the relevant time slices. Each tectonic event is fully documented with a unique name, maximum/minimum age, event age, category, technical abstract and references. • Tectonic Boundaries: interpreted for each time slice and derived from the basement terranes and tectonic events databases. • The 2016 release will also include: • Paleostresses at terrane scale • Terrane type through time. FROGNET MODEL TIME SLICES
  • 30. • Geology-driven plate model • Detailed integration and interpretation of georeferenced scientific datasets (geological maps, potential field datasets, wells, seismic data) • Quick access to global summary of key characteristics of basement terranes/plate polygons (type, age, major composition, tectonostratigraphic history)  Enhances understanding of the relationship between basement terranes, the overlying sedimentary basins and their mineral and petroleum resources CONCLUSIONS FROGNet Rigid Plate Model
  • 31. • Terranes add a rheological component to the plate model and provides a first pass assessment of stress partitioning and strain localisation. CONCLUSIONS Terrane Type • Rotations in the models cover the Phanerozoic (0 to 540Ma) • Terranes are interpreted and described up to the Precambrian, i.e. useful for Precambrian mineral systems and rising interest for unconventionals.
  • 33. FROGTECH Pty Ltd Suite 17F, Level 1 2 King Street Deakin West ACT 2600 T +61 (0)2 6283 4800 F +61 (0)2 6283 4801 E info@frogtech.com.au W frogtech.com.au Contacts: Marie-Aude Bonnardot, PhD Senior Geoscientist Jane Blevin, PhD CEO and Business Development Lynn Pryer, PhD Principal Geoscientist