Sociedad Geofisica de la Universidad Nacional de San Juan

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The UNSJ SEG Student Chapter is a group of students from the career of geophysics from the National University of San Juan, in Argentina.

Organization of the student chapter

After a few sessions the student chapter committee decided to create the following department in order to help with the planned activities for 2021:

  • Marketing and social media department
  • Logistics and project department
  • Treasury department


Student chapter officers 2022

Role Name Contact
President Balderramo, Nahuel [email protected]
Vice president Russo, Florencia [email protected]
Secretary Alonso, Micaela [email protected]
Treasurer Enrique, Emanuel [email protected]
Advisor Barros, Sergio [email protected]


Student chapter officers 2021

Role Name Contact
President Santori, Constanza [email protected]
Vice president Catanzaro, Ivo [email protected]
Secretary Ruiz, Daniela [email protected]
Treasurer Rojas Flores, Aldana [email protected]
Advisor Barros, Sergio [email protected]

Events in 2021


Date Title Summary Speaker Youtube
02/06/21 Capítulos estudiantiles de la SEG ¿Por qué debería formar parte de uno? Abstract: Introduction of the SEG in general, its objectives, aims, activities, programs, scholarships and benefits to the students of Geophysics at UNSJ.

La charla tiene como objetivo la introducción de los alumnos de las carreras de Geociencias al funcionamiento, características y beneficios de formar parte de un capítulo estudiantil. Durante la misma se verá una breve introducción a la historia de la Society of Exploration Geophysicists (SEG) y principalmente los objetivos que cumplen los capítulos, su constitución y oportunidades para los estudiantes que lo conforman.

Destinado a estudiantes de Geofísica de la UNSJ

Lic. Barros, Sergio

-Professor of Geophysics FCEFN - UNSJ-

([email protected])
09/06/21 Transitando los primeros años como profesional y como investigador The talk addressed the career of the Graduate in Geophysics, Diana Ortiz, since she was a student, her beginnings as a professional and finally her first year as a doctoral student. In addition, topics related to scientific publications made by the Graduate and her doctoral thesis will be discussed. Lic. Ortiz, Diana Agostina


([email protected])
23/06/21 Geofísica del agua Water is at risk, drought and desertification, climate change, mega-fires and all the consequences of human action give Geophysics the important task of studying and protecting the Earth.

In this talk, the Geophysics of water in its different environments, forms, structures and environments along with their applications was addressed.

Lic. Santander Urrutia, Daniel Sebastián ([email protected])
30/06/21 Ciclo de exposición de tesis de egresados de la UNSJ

Estudio del mayor sismo de profundidad Intermedia registrado en San Juan

This talk addresses the study of the largest magnitude intermediate depth seismic event recorded in San Juan and the analysis of its aftershocks, contributing to the understanding of the morphology and orientation of the Nazca plate at the latitudes of San Juan. This earthquake occurred on November 20, 2016 in the province of San Juan, with a magnitude Mw=6.3 at a depth of 107 km. Lic. Trad, María Sol


([email protected])
07/07/21 Sismicidad superficial en San Juan The talk addresses the study of large earthquakes as well as small to moderate seismic activity. Proposing a tour of the great surface earthquakes of San Juan, also considering the smaller earthquakes that occur in a crust that decreases in thickness from west to east. PhD. Venerdini, Agostina Lia

-Researcher- ([email protected])
15/07/21 Adquisición sísmica marina: conceptos y principios básicos The talk covered the basics of Marine Acquisition, the area of application and the latest technological advances. Lic. Andino, Roberto

-Senior Geophysicist-([email protected])

11/08/21 Miocene carbonate outcrop reservoir analogue: a case study from NE Libya Salah El Ekhfifi is an exploration geologist at NOC Libya since Five years ago and he has published many papers, delivered several presentations on diversified subjects or topics (locally and globally) in:

– Tunisia oil gas summit 2019

– Africa oil week 2018 at Prospect forum

Salah El Ekhfifi

-Exploration geologist at NOC Libya-

([email protected])
18/08/21 El potencial geotérmico en el Valle de Tulum, Provincia de San Juan: enfoque y perspectiva a futuro The talk consisted of an update on the work carried out in the province of San Juan (with emphasis on the Tulum valley) aimed at evaluating the low enthalpy geothermal potential. Mention will be made of the different techniques used at the time, such as seismology, petrology, geology, among others that have allowed deepening the knowledge of the basement of the Tulum valley, and how first-order structures play an essential role in geometry. and circulation of meteoric water at depths high enough to reemerge as thermal manifestations. PhD. Pérez Luján, Sofía


([email protected])
25/08/21 Ciclo de exposición de tesis de egresados de la UNSJ

Determinación de unidades ambientales para el modelo de ordenamiento

territorial controlado al norte del Valle de Tulum (provincia de San Juan)

This talk addresses the work carried out in the department of Angaco, a populated area north of the Tulum Valley, province of San Juan, Argentina. This work consists of a geophysical study in two west-east transects, from the valley to the foothills of the Pie de Palo mountain range, where it was possible to observe the geophysical responses to determine tectonic structures and establish their relationship with the units

geomorphological and superficial Quaternary deposits. For this, tools and principles of geophysical methods were used: gravimetry and magnetism.

Lic. Grígolo, Agostina ([email protected])
01/09/21 Geología de las Cuencas Offshore Argentino In this talk, some general concepts of rifting and basin formation will be reviewed, and what is known about the evolution of the main sedimentary basins of the Argentine Continental Shelf, the stratigraphy of its sedimentary fill, potential oil systems and exploratory plays will be reviewed.. Lovecchio, Juan Pablo

-Offshore Exploration Geologist at YPF and President of AAGGP- ([email protected])
08/09/21 Monitoreo volcánico: sismicidad y otras técnicas geofísicas aplicadas a volcanes Seismicity is perhaps the quintessential volcanic monitoring technique for short-term forecasting, as well as for estimating the base activity of the volcanic system. Through the different types of volcanic seismicity it is possible to understand the state of activity of the volcano; and through seismology it is possible to show magma advances in non-visible structures, as well as to estimate the location of possible magma reservoirs. Volcano deformation is also used as a monitoring measure associated with periods of volcano inflation/deflation before or after an eruption. The need to observe some volcanoes in remote areas, such as the Aleutian (USA) and Kuril (Russia) arcs, has led to the use of remote sensing techniques such as InSAR for these same purposes. In addition, a variety of electrical and electromagnetic methods have been used for subsurface studies, both for estimates of geothermal potential and for monitoring the structures themselves. On the surface, the monitoring of degassing, thermal radiance, and infrasound signals allow the study of other characteristics of volcanic activity both on the ground and at a distance. Together with seismicity and other geophysical and remote sensing techniques, it is possible to build a monitoring system that considers the different variables that the volcano shows, its different states, and thus improve early warning of eruptions and associated dangers. PhD. Mora-Stock, Cindy ([email protected]) -
15/09/21 Estudio de litofacies y organofacies en una secuencia del cretáceo de la cuenca oriental de Venezuela The Upper Cretaceous San Antonio Formation is characterized by a sequence of limestones, marly limestones, marls, shales, and sandstones. This talk will address a detailed study in the type section of the San Antonio Formation (300 m) to determine the variation of geochemical parameters as indicators of lithofacies and organic facies derived from the contribution of organic matter and types of sediments in the basin. The potential for hydrocarbon generation in the section is estimated based on the quantity, type and maturity of the kerogen. This sequence was deposited under suboxic to anoxic conditions, characterized by kerogen type II. Limestones, marly limestones, marls and shales have been considered as a secondary source rock in the Eastern Basin of Venezuela. This section presents differences in terms of the potential for hydrocarbon generation, related to the lithofacies and the organic facies. Additionally, sandstones act as accumulation zones for hydrocarbons generated and expelled from limestone, marly limestone, marl and shale. PhD. López, Liliana ([email protected])
22/09/21 Interrelación entre la geología y la geofísica: Aplicaciones prácticas The physical skeleton of planet Earth is made up of minerals and rocks. Geology is the science that studies and analyzes these materials, as well as their structure, properties, processes, events and history of the petrogenetic and metallogenetic processes that led to their formation. Geophysics studies the behavior of the Earth as a physical entity, so all geophysical methods require detailed geological support for proper interpretation. This presentation highlights the importance of coordinated and harmonious work between the two disciplines through examples of activities common to both: the exploration and evaluation of unconventional hydrocarbon deposits linked to igneous rocks and the prospecting of metal deposits. PhD. Brígida Castro de Machuca

-Researcher- ([email protected])
29/09/21 Geodinámica Argentina PRE Y POST Terremoto de 6.4 con epicentro en la provincia de San Juan Spatial geodetic techniques (VLBI, SLR, GNSS and DORIS) have multiple scientific applications, one of the most important is to obtain with very good precision the coordinates of the points where they are located, which allows determining and monitoring space-time variations due to deformations of the earth's crust.

At 11:46:21 p.m. on Monday, January 18, 2021, about 40 km southwest of the city of San Juan, a very shallow and destructive earthquake occurred with an epicenter in the Precordillera Sanjuanina and with a magnitude of Mw= 6.46. In the following 72 hours after the main event, more than 150 aftershocks of magnitudes between 2.5 and 5.3 were recorded. The main objective of this work is to carry out an analysis of the coordinates of fixed points (GNSS Permanent Stations belonging to RAMSAC) used in the materialization of reference systems at a global and regional level, in order to relate the possible changes with seismic agents and tectonics

Quinteros, Johana

-engineer- ([email protected])
03/11/21 Tomografías Eléctricas aplicadas a la Minería This talk will deal with electrical tomography, a geophysical technique that is becoming more important every day in mining, because it provides solutions throughout the mining cycle. It belongs to the group of electrical methods, it is simple, fast, non-invasive and relatively cheap to acquire compared to other techniques. Barrios, Ivette

-engineer- ([email protected])
10/11/21 Construcción de modelos de velocidades de intervalo en profundidad y algoritmos de migración para reducir riesgos en la perforación Deep pre-stack migration solves exploration and development problems associated with imaging and positioning of various subsurface geological structures, thereby reducing the risk of drilling. These problems include fault shadows, salt flanks, subsalt and subbasalt surfaces, reefs, thrust faults, and subtle lateral velocity variations. Caballero, Alfredo

-Senior Geophysicist- ([email protected])
24/11/21 En la búsqueda de técnicas de explotación minera innovativas , no invasivas y socialmente aceptables Exploration that leads to new discoveries of raw material resources requires innovations that change the geological targets of exploration, the physical locations reached, or the way they are explored. This talk will present some aspects of a European Union project that attempts to develop innovative geophysical and remote sensing technologies that promise to penetrate new depths, reach new sensitivities and resolve new parameters. Bergshjorth, Ana Braña

-Senior Geophysicist at NORDIKA GEOPHYSICS- ([email protected])
07/12/21 Anelipticidad en anisotropía elástica. Estimación a escalas de pozo y laboratorio e implicancias en la estimación de modelos geomecánicos This presentation discusses the use of statistical methods in the estimation of anisotropic parameters, focusing on the use of Bayesian methods, then analyzing the implications in the design and

numerical modeling of hydraulic fractures. It is briefly shown that the probabilistic analysis from wave measurements and pre-existing data allows a rapid estimation of the

anisotropic parameters and their uncertainty. In addition, it is shown how this uncertainty in the anisotropic parameters leads to overestimation or underestimation in the calculation of stress barriers and errors in the estimation of hydraulic fracture geometry.

PhD. Gallardo Giazza, Gabriel -
15/12/21 Rol del geofísico en la industria petrolera This presentation addresses the role of the geophysicist in the oil industry, focusing mainly on seismic and microseismic methods, since significant contributions can be made from seismic interpretation and characterization, the latter mainly in unconventional reservoirs. The main areas in which a geophysical professional can develop within the industry are summarized, what are the contributions in each area and the impact of the same in a project in development. Anis, Karina

-geologist at YPF-

([email protected])



Date Title Summary Instructor Attendant
10/04/2021 - 10/17/2021

Relief analysis using geographic information systems

was carried out in two weeks through asynchronous e-learning modality, comprising a total of 2 modules of 3 units each.

"Relief analysis using geographic information systems" is an advanced software training of QGIS completely free, ideal for geoscience students who took the "Introduction to QGIS" course, also taught by Fernando, or who already had knowledge of the program. Students who participated learned some of the tools provided by the software for terrain analysis using Digital Elevation Models (DEM)

PhD. Fernando Lebinson

-Professor, Department of Geology, UNS-

([email protected])

09/20/2021 - 10/09/2021

Introduction to QGIS

was carried out in two weeks through asynchronous e-learning modality, comprising a total of 2 modules of 4 units each.

It was completely free and open to all undergraduate students or recent graduates interested in learning to handle the basic tools of QGIS, a free and open source Geographic Information System. This program provides a growing range of capabilities through its basic functions and add-ons. It allows you to view, manage, edit and analyze data and design printable maps.

PhD. Fernando Lebinson

-Professor, Department of Geology, UNS-

([email protected])

09/13/2021 - 09/16/2021

Google Earth and its applications in geosciences

was taught in 5 days through asynchronous e-learning modality, comprising a total of 2 modules of 4 units each.

It was completely free and open to all undergraduate students or recent graduates interested in learning to handle the basic tools of Google Earth, a free program that allows you to travel around the planet through satellite images. A good instrument for studying geology, geography, remote sensing, geophysics, environment and other sciences.

PhD. Fernando Lebinson

-Professor, Department of Geology, UNS-

([email protected])



Date Title Summary Instructor Attendant Youtube

(2 hours)

Muestreo Multidimensional e Interpolación 5D Review of seismic sampling

▪ Multidimensional sampling in Seismic acquisition

▪ Seismic surveys: orthogonal, parallel, streamer, narrow and wide.

▪ Extracting 3D volumes from 5D data

▪ Five-Dimensional Interpolation:

Fourier interpolation by inversion

▪ Different operators DFT vs FFT

PhD. Trad, Daniel

-Associate Professor, Department of Geoscience, University of Calgary-

([email protected])


Cycles of talks with other Students Chapters

Date Title Summary Speaker Youtube

“Ciclo corto de charlas: Aplicaciones de Geofísica a la Geología” with UNS student chapter

19/07/21 Evolución de una cuenca a partir del análisis de anisotropía de Susceptibilidad Magnética (ASM). Caso de estudio para la Formación Tumes, Cuenca de Claromecó What is magnetic susceptibility anisotropy, how is this method applied and what information does it give us. How it correlates with the burial and deformation history of a sedimentary sequence. Study of crown cores from the Tunas Formation (Permian), Claromecó Basin, Buenos Aires province. Lic. Febbo, Belén
21/07/21 Peligros Geológicos Geological hazards are responsible for loss of life and economic loss on a small or large scale throughout the world. Therefore, carrying out the respective analyzes of each of the natural processes that can generate disaster events helps both scientists and government and non-profit organizations carry out prevention and mitigation tasks on vulnerable populations, as well as planning before, without and post events. Geology and geophysics contribute a lot to this knowledge and it is necessary for future professionals to become familiar with this branch of geosciences that has been continuously growing for decades and whose purpose, in addition to advancing in the scientific-technological field, is to preserve life. Lic. Sale, Rafael ([email protected])
23/07/21 Estilos estructurales en la faja plegada y corrida de Chos Malal, Cuenca Neuquina: Integración entre la Geología de Superficie y la Interpretación Sísmica Tectonic framework. Structural features of the extension stage of the basin. Development of compressive structures in the MALL CHOS FPC. Geometric models for fine skin structures and thick skin. Seismic interpretation of the deformation front. Influence of pre-extensive structures. Interaction between structures involving the basement and sedimentary cover (eg purple editor). PhD. Turienzo, Martin

-Professor, Department of Geology, UNS-

([email protected])

“Ciclo de charlas sobre Geociencias” ( Students Chapters: UBA, UdelaR, UNC, UNS, UNSJ, UNT)

04/10/21 GEOFÍSICA DE EXPLORACIÓN PARA LA TRANSICIÓN ENERGÉTICA This talk addresses the possible contributions and skills of exploration geophysics in the energy transition for an economy with lower carbon emissions Savornin, Pablo Gristo

MSc. Ingeniería de Petróleo.
06/10/21 CARACTERIZACIÓN DE RESERVORIOS A TRAVÉS DE MÉTODOS DEDUCTIVOS E INDUCTIVOS This talk addresses the concepts associated with different work methodologies Stinco, Luis Pedro

Dr. en Ciencias Geológicas (UBA)
08/10/21 INTERPRETACIÓN SÍSMICA ESTRUCTURAL This talk addresses the basics of the oil industry and the seismic method. Finally addressing the structural seismic interpretation. Campos, Alvis

Ing. Geofísico; MSc. en Geología Petrolera.
13/10/21 MÉTODOS ELECTROMAGNÉTICOS COMBINADOS CON TÉCNICAS GEOMÁTICAS COMO COMPLEMENTO DE LAS INVESTIGACIONES HIDROGEOLÓGICAS EN SALTO, URUGUAY This talk addresses the results obtained in the project carried out by the speaker in Salto, Uruguay. Ramos, Julián

MSc. en Geofísica Aplicada, Ing. Electromecánico
14/10/21 SENSORAMIENTO REMOTO Y MAGNETISMO APLICADO AL ESTUDIO ESTRUCTURAL DE TERRENOS METAMÓRFICOS POLIDEFORMADOS This talk presents the results of geological investigations of a structural nature developed along the ophiolitic belt of the Western Precordillera, on the western sector of the province of San Juan. PhD. Ariza, Juan Pablo

-Professor, Department of Geology, UNSJ- ([email protected])

Sensoramiento Remoto y Magnetismo Aplicado al Estudio Estructural de Terrenos Metamórficos Polid..
15/10/21 GRAVIMETRÍA SATELITAL Y SUS APLICACIONES A LA GEOTECTÓNICA Thanks to dedicated satellite missions (eg GRACE and GOCE) it has been possible to obtain global models of the Earth's homogeneous gravitational field with unprecedented resolution. These models in turn can be integrated with terrestrial data. By representing these direct models of the Earth as a whole, it is possible to study various phenomena such as: variations of oceanic masses and of the terrestrial interior, geodynamics, tectonic guidelines, delimitation of land and accounts, etc. Alvarez, Orlando

Dr. en Geofísica
18/10/21 EL ROL DEL GEOFÍSICO EN LA EXPLORACIÓN DE HIDROCARBUROS Applied Geophysics plays a fundamental role in the search for

hydrocarbons that meet the energy demand of today's world. Within this context, technical jobs only represent a part

of the tasks and decisions that a geophysicist must address as a member of interdisciplinary exploration teams. With the purpose of

introduce attendees to the hydrocarbon exploration scenario

will make a summary of the responsibilities associated with Geophysics and general workflows are exemplified from two real cases and

dissimilar to each other.

Vargas, Renzo

-Semi Senior Exploration Geophysicist- ([email protected])
20/10/21 ANÁLISIS E INTERPRETACIÓN DE ANOMALÍAS MAGNÉTICAS This talk deals with an analysis of magnetic anomalies, their utilities and requirements to be able to carry out their analysis and interpretation. Longo, Laura Mariana

Dra. en Geofísica
28/10/21 GEODESIA VOLCÁNICA EN EL OBSERVATORIO ARGENTINO DE VIGILANCIA VOLCÁNICA This talk addresses the activities carried out by Dr. Gemma Acosta in engineering at the Argentine Volcanic Surveillance Observatory. Acosta, Gemma

Dra. en Ingeniería e Ingeniera Agrimensora

Challenge Bowl

5th PLACE at the Latin American level event that took place remotely in May 2021. The following advanced students participated representing Universidad Nacional de San Juan:

  • Ezequiel Martín Nivas Fernández.
  • Francisco Torres.

Contact information (