Sam HAINES
Senior Research Fellow
Phone:
+65 6592-1771
Email:
s.haines@ntu.edu.sg
Office Location:
N2-01a-14
Research Group:
- Tectonics
Team:
I am a structural geologist interested in mountain belts, earthquakes, fault zones, and fault rocks. My work currently focuses on acquiring and interpreting active-source seismic images of the great-earthquake-producing Main Frontal Thrust (MFT) in Nepal, in an attempt to understand the geometry of the MFT and its basal detachment, the Main Himalayan Thrust (MHT). Both faults have generated major historical earthquakes, but their geometries, and possible links between geometry and seismogenic potential are still poorly understood. My previous research interests have focused on brittle faults and fault rocks and what can be learned from them about mountain belt dynamics and fault mechanics.
Education:
- 2008 - Ph. D. - University of Michigan, Ann Arbor, USA
- 1998 - M. Sc. - Imperial College, London, UK
- 1995 - B. Sc. (Hons) - University of St. Andrews, Scotland
Professional Experience:
- 2017 – 2018 - Visiting Assistant Professor, Ohio Wesleyan University, Delaware, OH, USA
- 2016 - 2017 - Lecturer, The Ohio State University, Columbus, OH, USA
- 2010 - 2015 - Research Scientist, Chevron ETC Seal and Trap Team; Houston, TX, USA
- 2009 - 2010 - Post-doctoral Fellow, Pennsylvania State University, University Park, PA, USA
- 2007 - Geologist, ConocoPhillips Reservoir Structure Group, Houston, TX, USA
- 2000 - 2002 - Engineering Geologist, Baker Engineering, New York City, NY, USA
- 1999 - Geologist, Repsol Exploración, S.A., Madrid, Spain, Santa Cruz, Bolivia
- 1998 - Mine Geologist,TVX Gold Hellas, S.A., Stratoni, Greece
- 1996 - Geologist, Rainbow Mining & Development, Petersville, AK, USA
Publications:
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(2014). Frictional properties of low-angle normal fault fault gouges and implications for low-angle normal fault slip. Earth and Planetary Science Letters. 408, 57-65.
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(2013). Shear zones in clay-rich fault gouge: A laboratory study of fabric development and evolution. Journal of Structural Geology. 51, 206-225.
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(2012). Patterns of mineral transformations in clay gouge, with examples from low-angle normal fault rocks in the western USA. Journal of Structural Geology. 43, 2-32.
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(2011). Links between orogenic wedge deformation and erosional exhumation: evidence from illite age analysis of fault rock and detrital thermochronology of syn-tectonic conglomerates in the Spanish Pyrenees. Earth and Planetary Science Letters. 307(1-2), 180-190.
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(2010). Active transsection faults in rift transfer zones: evidence for complex stress fields and implications for crustal fragmentation processes in the western branch of the East African Rift. International Journal of Earth Sciences. 99(7), 1633–1642.
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(2009). Clay fabric intensity in natural and artificial fault gouges: Implications for brittle fault zone processes and sedimentary basin clay fabric evolution. Journal of Geophysical Research: Solid Earth. 114(B5),
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(2008). Clay quantification and Ar-Ar dating of synthetic and natural gouge – application to the Miocene Sierra Mazatán detachment, Sonora, Mexico. Journal of Structural Geology. 30(4), 525-538.
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(2008). Rift nucleation, rift propagation and the creation of basement micro-plates within active rifts. Tectonophysics. 458(1-4), 105-116.
Publications:
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(2015). Graded fault rocks and a hydrofractured fault zone at the Snake Range detachment, NV: Slip on a low-angle normal fault at seismic velocities. Geological Society of America Annual Meeting.
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(2013). Unusual ‘graded’ fault rocks from the Snake Range detachment, NV –Evidence both for seismic slip on low-angle normal faults and paleodip at the time of slip. Geological Society America Annual Meeting.
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(2013). Repeating patterns of mineral transformations in clay gouges, with examples from low-angle normal fault rocks in the western USA. Geological Society of America Annual Meeting.
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(2012). Patterns of clay mineral transformations in fault gouges. European Association of Geoscientists and Engineers (EAGE) 3rd International Meeting on Fault and Top Seals.
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(2010). Frictional properties of low-angle normal fault gouges and implications for low-angle normal fault slip. American Geophysical Union (AGU) Fall Meeting.
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(2009). Meteoric water in normal fault systems: Oxygen and hydrogen isotopic measurements on authigenic phases in brittle fault rocks. American Geophysical Union (AGU) Fall Meeting.
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(2009). Fault gouge ages from the south-central Pyrenees fold-and-thrust belt – Demonstration of in-sequence thrusting and the geological significance of wall-rock provenance ages extrapolated from gouge dating. Geological Society of America Annual Meeting.
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(2009). Unusual ‘graded’ fault rocks from the Snake Range detachment, NV – Implications for fluid involvement in low-angle normal fault processes and the angle of slip of core complex detachments. Geological Society of America Annual Meeting.
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(2008). Formation of authigenic and detrital clay gouges – Examples from the US Cordillera and Uganda’s Rwenzori Mountains, East African Rift. Geological Society of America Annual Meeting.
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(2007). Clay mineral assemblages in fault gouges of the Rwenzori Mountains, Uganda. International Conference on the East African Rift System.
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(2007). Dating the Pyrenean orogenic wedge – Fault gouge ages and thrust belt evolution in the Spanish Pyrenees. European Geosciences Union General Assembly 2007.
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(2007). Clay fabric intensity in natural and experimental clay-rich fault rocks – implications for conditions and processes during fault slip. Geological Society of America.
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(2006). Radiometric dating of brittle faults – Advances and applications to young faults. Geological Society of America Annual Meeting.