Friday, 15 January 2010

Haiti quake relief

0 comments

Posted in the Geo-tectonics list by Shan Sathar:

 

Dear colleagues,

As we all know, a devastating earthquake struck Haiti on the 12th of January. Thousands are dead and many are seriously injured. Please do whatever you can do today to help thousands of people in desperate need.

I am posting the link for the British Red Cross to make things easy..

https://www.redcross.org.uk/emergencysite/campaign.aspx?id=88917

 

If you are not a fan of Red Cross, a simple Google search will list many other charities worldwide.

Many of us might have already donated for this cause.

 

My apologies if you are not interested.

 

Best regards,

 

Shan


Please, help and contribute.

 

J.

 

Tuesday, 5 January 2010

Structural geology techniques (I)

1 comments
There is a few websites about structural geology that I visit once a week or more often. I would like to start a series of articles for briefly presenting them.

The first of this sites is "Structural Geology Techniques", in charge of Steven Dutch, professor of the University of Wisconsin. (http://www.uwgb.edu/dutchs/structge/labman.htm).

In the website of Dutch, a neat and organised page, you can find many examples and diagrams explaining a good range of geometric problems related with structural geology. There are from basic level problems (e.g., calculatina fold axis given the limbs of the structure) to not so fundamental problems (e.g., how to construct a down-plunge cross section).

As Dutch explaines in his homepage (http://www.uwgb.edu/dutchs/index.html), he does not like fancy graphics, and his website is an example of efficient diagrams, which isn't always the same as beautiful. However, they are clear and functional.

Visit the place if you didn't know it yet. You will be surprise with how many things you have forgotten of structural geology and geometry :-).

Monday, 4 January 2010

TSG meeting programme 2010

0 comments
Carl Stevenson has released the programme for the TSG meeting in Birmingham this week. If you are attending, we’ll meet up there. If you aren’t… well, that is what you are missing!
Tuesday 5th January
18 30 onwards Wine reception in the Lapworth Museum
Registration desk open in Lapworth Museum
Poster hanging
Wednesday 6th January
08 00 – 09 15 Registration desk open in Lapworth Museum (until lunch)
Arrival tea, coffee and refreshments
09 15 Welcome – Professor Tim Reston
09 30 Technical programme day 1 – talks and posters
Session 1: Reducing uncertainty and risk
09 30 – 09 45
The Freyja project: uncertainty analysis of geological interpretations
*Euan Macrae, Clare Bond, Zoe Shipton
09 45 – 10 00
The influence of Structural and Stratigraphic uncertainties on fault seal analysis and reservoir compartmentalisation of deep water fan systems
Wood, A., Paton, D, Cook, A.
10 00 – 10 15
‘De-risking the prospect’ Incorporating structural uncertainty in petroleum systems modelling: A case study from the Judd Basin, U.K.
S. M. Clarke, H. Johnson & J. Rodriguez
10 15 – 10 30
Test-driving the Virtual Seismic Atlas – finding analogues and authoring content
Rob Butler and Taija Torvela
10 30 – 10 45
The number of km-scale impact craters yet to be found on Earth is c. 800
Stewart, S. A.
10 45 – 11 00
Discussion period
Chair: Nicola De Paulo
11 00 – 11 30 Break with tea, coffee and refreshments
Session 2: Neotectonics and active basins
11 30 – 11 45
Afterslip on the L’Aquila earthquake (M6.3) surface rupture captured in 4D using a Terrestrial laser scanner (TLS)
*Wilkinson M., McCaffrey K.J.W., Roberts G., Cowie P.A., Phillips R.J. & Michetti, A.
11 45 – 12 00
High resolution monitoring of creep of the Mam Tor landslip, Derbyshire
Ernest Rutter and Sam Green
12 00 – 12 15
Fault Lubrication and Earthquake Propagation in Thermally Unstable Rocks
N. De Paola,T. Hirose, T. Mitchell, G. Di Toro, C. Viti and T. Shimamoto
12 15 – 12 30
Late Cenozoic reactivation of polydeformed basement in the Chinese Beishan region north of Tibet
Cunningham Dickson and Jin Zhang
12 30 – 12 45
Normal-Fault Architecture and Deformation Processes in Poorly Consolidated Sediments within an Actively Extending Basin, Gulf of Corinth, Greece
*Sian Loveless, Victor Bense and Jenni Turner
12 45 – 13 00
Discussion period
Chair: Steve Jones
13 00 – 14 30 Lunch and posters
Session 3: Palaeostress and brittle tectonics
14 30 – 14 45
Combination of paleostress and paleomagnetic data: case studies from the Pannonian Basin
Fodor, L.I., Márton, E
14 45 – 15 00
Seismites reveal long-term earthquake behavior of the Dead Sea Fault
Shmuel Marco
15 00 – 15 15
The stress state of the brittle upper crust during early Variscan tectonic inversion and its influence on high-pressure compartments
Van Noten, K., Muchez, P. & Sintubin, M.
15 15 – 15 30
Characterising brittle reactivation in basement: an example from the Lewisian Gneiss Complex, NW Scotland
*J. C. Martin, R. E. Holdsworth, K. W. J. McCaffrey, A. Conway & M. Krabbendam
15 30 – 15 45
Palaeostress reconstruction in the Lufilian Arc and the Kundulungu foreland (Katanga, Democratic Republic of Congo): in search of evidence of incipient active rifting
*Kipata, M.L., Delvaux, D., Sebagenzi, M.N., Cailteux, J.-J. & Sintubin, M.
15 45 – 16 00
Discussion period
Chair: Steve Rippington
16 00 – 16 30 Break with tea, coffee and refreshments
Session 4: Posters
16 30 – 17 30
Thursday 7th January
08 00 – 09 15 Registration desk open in Lapworth Museum (until lunch)
Arrival tea, coffee and refreshments
09 15 Technical programme day 2 – talks and posters
Session 5: Mapping and remote sensing
09 15 – 09 30
The origin and evolution of the Cretaceous northwest Sirt Basin, Libya, based on remote sensing interpretation and well data analysis
*Khalifa M. Abdunaser, Ken J.W. McCaffrey
09 30 – 09 45
InSAR mapping of an active Iranian salt extrusion
Ian Alsop, Pedram Aftabi, Mahasa Roustaie, Christopher J. Talbot
09 45 – 10 00
Geology of the Ordovician Tyrone Igneous Complex, Northern Ireland
Cooper, M. R., Crowley, Q. G., Hollis, S. P., Noble, S. R., Roberts, S., Chew, D., Earls, G, & Herrington, R..
10 00 – 10 15
Polyphase deformation in the Lake Hazen region, at 82o north on Ellesmere Island: implications for the tectonic evolution of the High Arctic
Stephen Rippington, Robert Scott, Helen Smyth, Simon Kelly
10 15 – 10 30
A ruck, a ramp and imbricate stack, but no culmination – the Dundonnell sector of the Caledonian Moine Thrust Belt, Northwest Highlands of Scotland.
Leslie, A.G., Goodenough, K.M.& Krabbendam, M.
10 30 – 10 45
Discussion period
Chair: Sam Spendlove
10 45 – 11 15 Break with tea, coffee and refreshments
Session 6: Margins
11 15 – 11 30
Evidence for Quaternary convergence between the North American and South American plates, east of the Lesser Antilles
Patriat M., Pichot T., Westbrook G.K., Umber M., Deville E., Bénard F., Roest W., Loubrieu B. and the ANTIPLAC cruise party
11 30 – 11 45
Thermal weakening localizes intraplate deformation along the southern Australian continental margin
Simon P. Holford, Richard R. Hillis, Martin Hand, Mike Sandiford
11 45 – 12 00
Structural Controls on the Evolution of the Southeastern Brazilian Continental Margin
*Ashby, D.E., McCaffrey, K.J.W., Holdsworth, R.E., Almeida, J.C.H., Oliver, J.
13 00 – 12 15
Detachment faults during continental breakup and beyond
Tim Reston
12 15 – 12 30
Cenozoic history of Britain and Ireland: Implications of modern dynamic support for the Paleocene underplating idea, and quantification of plate boundary drivers of Cenozoic structural inversion
Stephen M Jones
12 30 – 12 45
Discussion period
Chair: Ken McDermott
12 45 – 14 15 Lunch and posters
Session 7: Novel approaches and applications I
14 15 – 14 30
Calculated petrophysical properties of rocks from CPO analysis by EBSD in a section across the Moho in Cabo Ortegal (N Spain)
Sergio Llana-Fúnez, Dennis Brown, Ramón Carbonell, Joaquina Álvarez-Marrón, David Martí, Matthew Salisbury
14 30 – 14 45
Linking sill morphology to emplacement mechanisms
*Nick Schofield, Carl Stevenson, Tim Reston
14 45 – 15 00
Cone sheet emplacement in sub-volcanic systems: a case study from Ardnamurchan, NW Scotland
*Craig Magee, Carl Stevenson and Brian O’Driscoll2
15 00 – 15 15
Contrasting magnetic susceptibility fabrics on opposite fold limbs: cause and implications
Debacker, T.N.., Seynaeve, N., Sintubin, M. & Robion, P.
15 15 – 15 30
Characterising the role of basin margin structure on finite strain patterns across a ‘cleavage’ front from the Variscides of southern Ireland
*Parker, C., Meere, P., Stevenson, C., Mulchrone, K.
15 30 – 15 45
Discussion period
Chair: Carl Stevenson
15 45 – 16 15 Break with tea, coffee and refreshments
Session 8: Posters
16 15 – 17 30
17 30 – 18 00 AGM Chaired by Professor John Wheeler
18 00 – 18 30 Wine and posters
19 00 TSG conference dinner, Noble Room, 2nd floor, Staff House
Friday 8th January
08 00 – 09 30 Registration desk open in Lapworth Museum (until lunch)
Arrival tea, coffee and refreshments
09 15 Technical programme day 3 – talks and posters
Session 9: Novel approaches and applications II
09 15 – 09 30
Fault stepping and drainage evolution in the Corinth basin rift, Greece
Turner, J.A., Leeder, M.R. and Finch E.
09 30 – 09 45
A geological investigation into fault weakening mechanisms revealed in deep drill core from the San Andreas Fault Observatory at Depth (SAFOD)
Bob Holdsworth, Esther van Digglen, Hans De Bresser, Steve Smith
09 45 – 10 00
K-white mica thermo-barometry, conodont colour alteration index and vitrinite reflection: methods to distinguish nappes in a complex diagenetic to low-grade metamorphic nappe pile
Kövér, S. & Fodor, L. I.
10 00 – 10 15
3D Pulsating flow and possible strain pattern in general shear zones
David Iacopini, Rodolfo Carosi, Paris Xypolias
10 15 – 10 30
Fault and fracture patterns in low porosity chalk
David Sagi, Nicola De Paola, K.J.W. McCaffrey & R.E. Holdsworth
10 30 – 10 45
Discussion period
Chair: Tim Reston
10 45 – 11 15 Break with tea, coffee and refreshments
Session 10: Modelling and strain analysis
11 15 – 11 30
Spatial analysis, structural geology and mineral exploration
Julian Vearncombe and Susan Vearncombe
11 30 – 11 45
Reconciliation of contrasting theories for joint spacing in layered sequences
Schöpfer, M.P.J., Arslan, A., Walsh, J.J., & Childs, C.
11 45 – 12 00
3D numerical modelling of the evolution of fault zone internal structure
Schöpfer, M., Childs, C. & Walsh, J.J.
12 00 – 12 15
Structural modelling of possible contaminant pathways below nuclear installations
*Richard Haslam, Stuart Clarke, Peter Styles & Clive Auton
12 15 – 12 30
Strain analysis from point fabric patterns: A new objective method
Lisle, Richard J
12 30 – 12 45
Discussion period
Chair: John Wheeler
12 45 – 14 15 Lunch and posters
Session 11: Seismic analysis, interpretation and integration
14 15 – 14 30
Length-throw relationships in an evaporite-detached extensional fault array: The Bremstein Fault Complex, offshore mid-Norway
Wilson, P.., Elliott, G. M., Gawthorpe, R. L.., Jackson, C. A-L. & Hansen, S.
14 30 – 14 45
Geological and structural evolution of the Rosaria Mare intraplatform Basin and its tectonic implications (Adria/Apulia plate boundary, SE Italy)
Felici, F., Turco, E., Pierantoni, P. P., & Milia A.
14 45 – 15 00
Linking fault geometry with wall-rock deformation: 3-D seismic investigation deepwater Niger Delta
*Jibrin, B., Turner, J.P., Westbrook G.K., Bretan, P.
15 00 – 15 15
Different interpretations of thrust trajectories and strain distribution in a fold-and-thrust belt
­Torvela, T., Butler, R. W. H. & Bond, C.
15 15 – 15 30
Discussion period
Chair: Nick Schofield
15 30 – 16 00 close
16 00 – 16 30 Departing tea, coffee and refreshments
Saturday 9th January
Post meeting workshop: Move2010 for teaching and research
In collaboration with Midland Valley Exploration Ltd.
Midland Valley Exploration’s Academic Initiative’s began three years ago and now, between the Field Mapping Initiative and the Academic Software Initiative, nearly 200 academic geosciences departments worldwide are using Move.
This workshop aims to introduce Move2010 to academic users and to highlight a few potential uses in teaching and research. We will go through some hands-on exercises from the Move2010 tutorials and discuss some current uses in academic teaching and research including field mapping.
Contact Carl Stevenson: c.t.stevenson@bham.ac.uk
Midland Valley will be represented by Dr Ruth Wightman
Workshop itinerary:
09.00 - 09.20 Introduction to Move and the rationale behind the ASI
09.20 - 11.00 Move2010 hands-on exercise - 2DMove
11.00 - 11.30 Refreshment break
11.30 - 12.30 Move2010 hands-on exercise - 3DMove
12.30 - 13.30 Lunch (Lapworth Museum)
13.30 - 14.00 Introduction to structural analysis - 4DMove
14.00 - 15.00 Examples of using Move in teaching and research
15.00 - 16.00 Examples of using Move in field mapping
16.00 - 16.30 Refreshment break
16.30 - 17.30 Participant Examples / Q&A
Cost - £7.50 (on arrival)
Places are limited to 30
Posters
The Origin and Nature of Cenozoic Faulting in North East Ireland
*Anderson, H., Walsh, J.J. & Cooper, M.R
The impact of strain, bedding plane friction and overburden pressure on joint spacing
Arslan, A., Schöpfer, M. P. J., Walsh, J. J., Childs, C.
Influence of deep transverse fault zones on the prospectivity, geometry and spatial arrangement on some hydrocarbon-related structures, Zagros fold and thrust belt, northern Iraq
Banks, G.J.
Analysis of structural lineaments and their relationship with paleotension fields responsable for the formation of cenozoic brittle structures, Espirito Santo State (SE Brazil)
*Bricalli, L.L., Cianfarra, P., Salvini,F. & Mello,C.L.
3D modelling of ore deposits geometry in the Variscan basement of SE Sardinia (Italy).
Cristina Buttau, Antonio Funedda, Andrea Dini, Stefano Naitza.
Incorporating structural uncertainty into petroleum systems modelling to reduce exploration risk
S. M. Clarke, M. Littler, H. Johnson, M. Quinn, J. Rodriguez, S. Stoker & P. Ware
The Fluid Flow Evolution During the Seismic Cycle Within Overpressured Fault Zones in Evaporitic Sequences
N. De Paola, C. Collettini, D.R. Faulkner
The Cantabrian Thrust Belt: basin history of the North Gondwana passive margin - rifting, glaciation? more rifting then collision.
*Helen Doherty, Tim Ferriday, Michael Kelly, Michael Montenari, Steven Rogers & Graham Williams
Structural evolution and fluid flow in the Wealden and Hampshire basins, southern England, U.K.
*Salah Eldin M. Elgarmadi, Graham Potts, and Richard Worden
A geometrical relationship between imbricate thrust structures and their generated topography of mass-transport deposits (MTD’s); implications for the accommodation of sediment laden gravity-driven flows.
*Fairweather, L. I. D. & Kneller, B. C.
A layer cake model as a stratigraphic classification of mass-transport deposits (MTDs); from palaeo-flow directions and macro-scale structures, Paganzo basins, Argentina.
*Fairweather, L. I. D., Kneller, B.C., Dykstra, M. & Milana, J.P.
Characterising fracture systems within upfaulted basement highs in the Hebridean Islands: an onshore analogue for the Clair Field
*Franklin,B. S. G., 2nd Holdsworth R. E., McCaffrey K.J. W., Krabbendam M., Conway A. & Jones R
Modelling continental margin extension using combined rigid/deformable plate tectonic reconstructions
Munoz, A.A., Glover, C.T., Harris, J.P., Goodrich, M., Hudson, L. & Ady, B.
Laccolithic emplacement of the Northern Arran Granite, Scotland: a new model based on Anisotropy of Magnetic Susceptibility
*Grove, C and Stevenson, C. T
Consequences of Anisotropic Poroelasticity due to Fluid-Saturated Damage
Healy, D.
Structural analysis of fold and thrust structures from deepwater west Niger Delta.
Iacopini D., Grimaud J-L., Butler R.W.H.
Application of dip-related seismic curvature attributes to map surface fault geometry: Examples from deepwater Niger Delta
*Jibrin, B., Turner, J.P., Westbrook G.K., Huck, A., & Hemstra, N.
Magma plumbing in the Judd Basin, North Atlantic, from opacity rendered 3D seismic data
*Adam Linnell, Carl Stevenson, Nick Schofield
Fault-related fracturing in carbonate damage zones: field analysis and modeling from Central Apennines (Italy)
*Mannino I., Salvini F., Cianfarra P.
How to Form a Rifted Margin – Fault, Fault and Fault Some More
*Ken McDermott , Tim Reston & Jonathon Turner
Examining the low-angle normal fault system of north-west Kea based on a new geological map
Müller, M.., Grasemann, B. & Iglseder, C.
Interactions between strike-slip faults, Westward Ho!: domino vs conjugate
*Casey W. Nixon, David J. Sanderson, Jonathan M. Bull and Stephen Dee
Quantification of Curvature and Fracture Distributions in Outcrop-Scale Periclines
Pearce, M.A., Jones, R.R., Smith, S.A.F. & McCaffrey, K.J.W.
The Sardic Phase.
Puddu C.
The interpretation of major fault zone properties using three integrative approaches
Taylor, R.L., Rutter, E. H. & Faulkner, D.R.
The effects of crystallographic anisotropy on fracture development and acoustic emission in quartz
Timms, N.E., Healy, D., Reyes Montes, J.M., Collins, D., Prior, D.J., & Young, R.P.
The Virtual Seismic Atlas – utilising web-based material in Earth science research.
Torvela, T. & Butler, R. W. H.
Visualising and understanding structural geology from the field to the lab: using Move as an aid in teaching and research.
Wightman, R.H., Bond, C.E., Scherrenberg, A., Similox-Tohon, D.
(*student presentation)

Sunday, 3 January 2010

Terrane Map of Europe

3 comments
For the first post of the year, I would like to include a link to an interesting map containing the major terranes of Europe, as it has been compiled by Martin S. Oczlon.

http://www.rzuser.uni-heidelberg.de/~oh3/terranemap/

Martin has used more than 2600 references for this outstanding work, and you will appreciate that when you will see the detailed mapping labour.

From the website of the terrane map of Europe:

WHAT CAN THIS MAP TELL YOU?
The aim of this map is to provide a view on the growth of Europe throughout its billions of years of evolution, applying a self-explanatory colour scheme. It is designed to allow also readers without much background on the geology of Europe to access the basic concepts on the assembly and accretionary history of the continent. At the same time, it provides in-depth information and key arguments for the various assignments.
Every part of the European crust with the same provenance, accreted at the same time or in one diachronous event, is given the same colour. Following Late Palaeozoic accretion of Gondwana-derived terranes, almost all of the crust that currently makes Europe was already assembled by ca. 280 million years. Therefore, terrane-description focuses mainly on their Palaeozoic and older pre-/syn-accretionary evolution. The younger sutures and ophiolite belts of southern Europe are the result of Meso-Cainozoic opening and closure of small oceanic basins within the previously accreted crust. These sutures are shown with a line-framework that outlines the boundaries of the major Alpine tectonic units.
For a better understanding of terrane-provenance, palaeogeographic reconstructions of Earth at 543, 444, 375, 299, and 195 million years are shown on the right-hand side of the map. Colours of the various palaeo-continents and terranes are the same as on the Terrane Map, allowing easy recognition of the past position of continental fragments that now form part of Europe.

And, before I forget it...

Happy 2010!!


(August'10 edition: links corrected to new address)