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Personal details

Full Name: Marco Antonio Lopez Sanchez
Current address:
Departamento de Geología
Universidad de Oviedo
Jesús Arias de Velasco s/n
33005 Oviedo
Asturias, Spain
e-mail: *@geol.uniovi.es
* = malopez
Google scholar: scholar.google
Microsoft academic: 2116864491

Tel: +34 985 103 120 (work)
References available on request
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Research Interests

My research interests range from different aspects of structural geology, metamorphic petrology, and geochronology. My primary interests are rock deformation and rheology, crustal strength modelling, rock microstructure (particularly grain size distributions), and understanding strain localization in viscoplastic aggregates (shear zones). I also have academic interests in the geological mapping of ancient orogens, the interaction between rock deformation, fluids and metamorphism and the establishment of the absolute time at which deformation processes occur. I also enjoy statistics, scientific computing and programming.
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Higher Education

Jul 2013
Ph.D. in Geology, cum laude honours, Department of Geology, Univ. of Oviedo
Thesis: Análisis tectónico de la Falla de Vivero (Galicia, NW of Spain)
Advisor: Sergio Llana-Fúnez; Co-advisors: Profs. A. Marcos and F. J. Martínez

Sep 2007
DEA (Masters of Science - M.Sc.) in Geology, Department of Geology, University of Oviedo.
Project advisor: Prof. Alberto Marcos

Jan 2006
Bachelor of Science (B.Sc.) in Geology, Department of Geology, University of Oviedo.
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Professional experience (academic and non-academic)

Apr. 2016 - present
Post-doc researcher, Dept. of Geology, University of Oviedo
Rock deformation and characterization of deformation rock textures (project ref. MINECO-15-CGL2014-53388-P; IP: Sergio Llana-Fúnez)
Oct. 2015 - Nov. 2015
Post-doc researcher, Dept. of Geology, University of Oviedo
SEM, EPMA and image analysis for characterizing deformation rock textures (project ref. FC-15-GRUPIN14-44; IP: Sergio Llana-Fúnez)
2013 - Oct. 2015
Research assistant (not-paid volunteer), Dept. of Geology, University of Oviedo
2007 - 2013
Ph.D. Student, Dept. of Geology, University of Oviedo
Non-academic
Oct. 2015 - March 2016 (6 months)
Geology teacher at a private academy
April 2014 - May 2015 (1 year and 2 months)
Self-employed geologist (Geographical Information Systems, geology consultant, geological mapping)
Oct. 2013 - March 2014 (6 months)
Geology teacher at a private academy
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Fellowships/Awards

2016 - Early Career Scientist’s Travel Award for EGU General Assembly 2016
2007 - Doctoral fellowship (4 years) in the Severo Ochoa Program (FICYT, Principality of Asturias, Spain)
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Training (selected) courses

2016
Thematic School – Recrystallization Mechanism in Materials
Duration: 5 days (32 hours), Sète, France
Coordinator: Maurine Montagnat
Organized by the CNRS "Groupement de Recherche" on Recrystallization (GDR3436). Certificate
2015
Introduction to R Programming
Duration: 10 hours
Instructor: Filip Schouwenaars
Microsoft edx course (DAT204x). Certificate
2013
Introduction to computer science and programming using Python
Duration: 210 hours
Prof. Eric Grimson, Prof. John Guttag, Dr. Chris Terman and Dr. Larry Rudolph
Massachusetts Institute of Technology edx course (MITx - 6.00x). Certificate

2012
Scanning Electron Microscopy and its applications to analyses of Rocks
Duration: 30 hours
Prof. John Wheeler, Dr. Elisabetta Mariani and Dr. Dan Tatham.
Department of Earth, Ocean and Ecological Sciences, University of Liverpool.

2008
Training course in microtectonics
Duration: 30 hours
Prof. Cees W. Passchier
Institut für Geowissenschaften; Johannes Gutenberg-Universität Mainz (Germany).
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Analytical/technical skills

Scientific computing and programming. Experience in Python programming language and various scientific libraries such as Numpy, Scipy, Matplotlib and Pandas. I am also familiar with the basics of R programming language.
Image analysis (ImageJ, Photoshop). Image enhancement, grain segmentation, shape descriptors, grain size and spatial analysis.
Scanning Electron Microscopy (BSD, EBSD); Familiar with the use of MTEX toolbox, HKL Channel 5 and the PFch5 script
Grain size analysis. I use my own tools/scripts. See an example in http://marcoalopez.github.io/GrainSizeTools/
Electron Probe Micro-analyser (EPMA). Monazite chemical dating (see https://github.com/marcoalopez/chemical_age_script)
Good theoretical background in understanding experimental data (i.e. statistics, interpolation and regression)
Experience in geological mapping and Geographical Information Systems (GIS)
Analysis of U-Pb geochronological data
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Participation in Research Projects

2016 - present
Cataclasis y fracturación en rocas de la corteza continental (Cataclasis and rock fracturing in the continental crust). Project led by Sergio Llana-Fúnez Ref. MINECO-15-CGL2014-53388-P
2015
Procesos geológicos modeladores del relieve de la cordillera cantábrica. Project led by Sergio Llana-Fúnez Ref. FC-15-GRUPIN14-44
2010-2014
La transición frágil-dúctil de la corteza del NO penínsular (The brittle-ductile transition in the continental crust in North-western Iberia). Project led by Sergio Llana-Fúnez Ref. MICINN-10-CGL2010-14890

2007-2010
The tectonic evolution of an orogen in the transition between the internal and external zones: A comparison between the Variscan orogen in the NW of Iberian Peninsula and the Pyreneean Axial Zone (original title in spanish). Project led by Alberto Marcos. Ref. CGL2006-08822/BTE
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Teaching positions held (at universty level)

Graduate teaching assistant from 2009 to 2011, University of Oviedo.
Laboratory sections taught: Plate Tectonics (20 hours); Structural Geology (20 hours); Geophysical and Geochemical prospecting (10 hours); Interpretation of geological maps (10 hours)
Field Camp taught: Geodynamics (10 hours); Structural Geology (10 hours); Fieldwork (geological mapping) (12.5 hours); Tectonics (10 hours); Structural analysis (5 hours)
Accredited as an assistant teacher by the National Agency for Quality Assesment and Accreditation of Spain (ANECA) in 2016
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Administrative experience

Deformation mechanism, Rheology and Tectonics - DRT2011meeting organizing committee. DRT meetings are a series of biannual international meetings dedicated to the study of deformation processes in rocks at different scales, from the microscale to the study of bulk deformation of the lithosphere
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Languages

Spanish (and Galician) mother tongue
English (fluent); Portuguese (reading fluently and listening comprehension)
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Scripts developed and maintained

GrainSizeTools: A free and open-source Python script for estimating the grain size from thin sections
Developed and maintained by: Lopez-Sanchez MA
Info. & download: http://marcoalopez.github.io/GrainSizeTools/
Chemical age script: A free and open-source script to estimate the 'chemical' ages in monazites analyzed in electron microprobes
Developed and maintained by: Lopez-Sanchez MA
Info. & download: https://github.com/marcoalopez/chemical_age_script/
Line azimuth script: A free open-source Python script for estimating the azimuth of a line considering the side towards which the line is leaning
Developed and maintained by: Lopez-Sanchez MA
Info. & download: https://figshare.com/articles/Line_Azimuth_Script/3382228
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Publications

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Refereed journals

Submitted or in advanced state of preparation (only first author)
Lopez-Sanchez MA, Llana-Fúnez S, Marcos A and Martínez FJ. A model for the formation of granite ultramylonites in the semi-brittle
field: the Penedo Gordo example. To submit to Journal of Geophysical Research: Solid Earth
Lopez-Sanchez MA, García-Sansegundo J, Martínez FJ, Iriondo A, Marcos A. A U-Pb age of Variscan granitoids of the Pyrenean Axial Zone (Bossost and Lys-Caillaouas granites): Tectonic implications. In advanced state of preparation. To submit to Geological Magazine

Published or in press (citable) peer-reviewed publications
Lopez-Sanchez MA and Llana-Fúnez S (2016) An extension of the Saltykov method to quantify 3D grain size distributions in mylonites
Journal of Structural Geology 93:149-161; doi: 10.1016/j.jsg.2016.10.008 PDF
Lopez-Sanchez MA, Aleinikoff J, Marcos A, Martínez FJ, Llana-Fúnez S. (2016) An example of low Th/U zircon overgrowths of magmatic origin in a late orogenic variscan intrusive: the San Ciprián Massif (NW Spain). Journal of the Geological Society 173:282-291; doi: 10.1144/jgs2015-071 PDF
Lopez-Sanchez MA and Llana-Fúnez S (2015) An evaluation of different measures of dynamically recrystallized grain size for paleopiezometry or paleowattometry studies. Solid Earth 6:475-495, Special issue: Deformation mechanisms and ductile strain localization in the lithosphere; doi: 10.5194/se-6-475-2015
Lopez-Sanchez MA, Marcos A, Martínez FJ, Llana-Fúnez S, Iriondo A (2015) Setting new constrains on the age of crustal-scale normal fault (Vivero Fault): Implications for the evolution of Variscan orogeny in the Iberian Massif. International Journal of Earth Sciences 104(4):927-962; doi:10.1007/s00531-014-1119-1 PDF
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Field Trip guides

Marcos A, Bastida F, Aller J, Fernández FJ, Llana-Fúnez S and Lopez-Sanchez MA (2011) DRT post-conference Fieldtrip Guide: West Asturian Leonese Zone, Cabo Ortegal, Malpica-Lamego Line. Deformation, Rheology and Tectonics (DRT - Oviedo) meeting 42 pp + map.
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Meeting proceedings

2017 - Llana-Fúnez S, de Paola N, Pozzi G and Lopez-Sanchez MA. Slip events propagating along a ductile mid-crustal strike-slip shear zone (Malpica-Lamego line, Variscan Orogen, NW Iberia). European Geoscience Union General Assembly
2016 - Lopez-Sanchez MA and Llana-Fúnez S. Characterizing 3D grain size distributions from 2D sections in mylonites using a modified version of the Saltykov method (Oral). European Geoscience Union General Assembly
2016 - Lopez-Sanchez MA and Llana-Fúnez S. Caracterización de la distribución 3D de tamaños de grano en milonitas a partir de secciones usando el método Saltykov y una extensión del mismo (Oral). Congreso Geológico Nacional de España
2012 - Lopez-Sanchez MA, Llana-Fúnez S, Marcos A and Martínez FJ. Deformation of quartz and feldspar at mid-crustal depths in an extensional normal fault (Vivero Fault, NW Spain) (Poster). European Geoscience Union General Assembly

2012 - Lopez-Sanchez MA, Iriondo A, Marcos A and Martínez FJ. Una edad de 478,7 Ma (U-Pb Shrimp-RG) en la Formación Ollo de Sapo: implicaciones para el volcanismo Cambro-Ordovícico de la Península Ibérica (Poster). Congreso Geológico Nacional de España

2011 - López-Sánchez MA, LLana-Fúnez S, Martínez FJ and Marcos A. Strain gradient recorded in the Penedo Gordo granite during extensional movement of crustal-scale Vivero Fault (NW Spain) (Poster). European Geoscience Union General Assembly

2011 - López-Sánchez MA, LLana-Fúnez S, Martínez FJ and Marcos A. Changes in deformation mechanism and neocrystallisation in granite during a MT-LP deformation (Vivero Fault, NW Spain) (Poster). Deformation, Rheology and Tectonics meeting (Oviedo)

2011 - López-Sánchez MA, Llana-Fúnez S, Martínez FJ and Marcos A. Microstructural Evolution in Quartz and Feldspar During Medium T Deformation (Vivero Fault, NW Spain) (Poster). The Interrelationships Between Deformation and Metamorphism. Abstract Volume. University of Granada. p.105

2011 - López-Sánchez MA, Marcos A, Martínez FJ and Llana-Fúnez S. Hangingwall Metamorphism Related to an Extensional Orogen-scale Shear Zone: The Vivero Fault (NW of Spain) (Poster). The Interrelationships Between Deformation and Metamorphism. Abstract Volume. University of Granada. pp.106-107

2010 - López-Sánchez MA, Marcos A, Martínez FJ and Llana-Fúnez S Microstructures from the footwall to the hangingwall in the Viveiro Shear Zone (NW of Iberian Peninsula) (Oral - by invitation). Sociedade Geológica de Portugal, VIII Congresso Nacional de Geología.

2009 - López-Sánchez MA. Deformation partitioning patterns and metamorphism of the Viveiro shear zone (Guntín, NW of Iberian Peninsula) (Poster). Deformation, Rheology and Tectonics meeting (Liverpool)
Header image: Unsplash (CC0)
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Marco is a postdoctoral researcher at the University of Oviedo currently working on rock deformation, deformation microstructures, and rock rheology. He holds a Ph.D. in Geology from the University of Oviedo since 2013. He is actively looking for a postdoctoral position abroad.
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