A NEW DOCTOR IN THE BCN-STUDENT CHAPTER!

On Friday, April 26, our SEG member, Jingyao Xu, defended her doctoral thesis, directed by Dr. Joan Carles Melgarejo Draper.

She studied the Optimization of the use of diamond indicator minerals in diamond exploration in kimberlites.

We congratulate Jingyao and wish her many successes in this new stage.

13/03/2019 – 7th INFORMATIVE TALK: SEG CONFERENCE WITH DAN WOOD

Last 13th of March we had the enormous pleasure to have Dan Wood with us, giving a talk about the Discovery of the Kencana Au-Ag ore deposit in Indonesia.

Dan Wood was the SEG Distinguished Speaker during 2018. He is an exploration geologist (nowadays retired) who was associated with a great number of significant ore deposits discoveries. Together with the Company's exploration team of the Newcrest, from which he was the Executive General Manager Exploration, they were judged by the Metals Economics Group of Canada to have been the world's most successful gold explorer, during a long period of time.

The main topic of the talk was the Kencana Au-Ag ore deposit, in Indonesia. This deposit, together with other associated to the main one (Gosowong and Toguraci), is a good example of high grade, low-sulphidation epithermal Au-Ag mineralization. He explained his experience through the discovery, exposing all the analyses obtained with the exploration of each of the deposits. An important fact is that the Kencana deposit is about three times the size of both Gosowong and Toguraci deposits. Dan remarked the important role that perseverance during the exploration process, good field work and even serendipity played in the discovery of this deposits.

We want to thank Dan Wood for such an interesting talk and for giving us the pleasure to hear his experience.

 

14/02/2019 and 28/02/2019 – METEORITES SHORT COURSE

Last 14th and 28th of February took place the Meteorites Short Course organized by the Barcelona SGA-SEG Student Chapter and given by Dr. Jordi Llorca and David Allepuz at the Faculty of Earth Sciences of the University of Barcelona.

First of all, we want to thank all participants: it was a great experience for us to organize this course and we received very positive comments from all the assistants.

The course was divided in two days. The first day consisted in a theoretical session in which David Allepuz and Dr. Jordi Lorca introduced different terms related to the classification of meteorites and its characterization. They also detailed the procedure they follow in order to sample meteorites and explained their own experiences during the field trips around the world, as well as the excitement they still feel nowadays when they find a meteorite. A place where they usually find meteorites is the Atacama Desert, Chile. The way they did the conference was easy to follow, especially for those who didn’t have any knowledge about the topic.

The second day of the course was for the practical session. In this occasion, we had the chance to take a look at a great number of thin sections, corresponding to different typologies, with optical microscopy. This way it was possible to apply the terms we learned during the theoretical session for the description of the samples. The thin sections were part of the collection available at the Faculty of Earth Science of the University of Barcelona.

 

The course participants exposed their opinions and said they found the course very interesting. However, they lament the lack of time provided to study the samples considering the amount of samples available.

To conclude, we want to thank David Allepuz and Dr. Jordi Lorca for the interest and dedication they put to organize this short course.

Don't you miss the image gallery about this course: http://www.meteorits.cat/ciencia/FacGeologia.htm

 

07/01/2019 – 6TH INFORMATIVE TALK WITH CARLOS ALONSO

Last 7th of January, Carlos Alonso was invited to our 6th Informative Talk. Carlos Alonso is a senior geologist in exploration and mining, gave us the talk: La Experiencia de un Geólogo Modelador: Optimización de la información geológica mediante el uso de tecnologías avanzadas. The talk was divided in two parts. He first explained how he decided to study Geology and talked about his academic trajectory. He did his Geology Bachelor at the Universidad Complutense de Madrid and decided to direct his career towards mining. During his career, he got the opportunity to start learning softwares to perform 3D geological modeling and decided to specialize on that to apply it within the mining sector. Nowadays he works as Business Development Manager for Seequent, the company which provides the software Leapfrog (www.leapfrog3d.com/), in London (UK).

The second part of the talk was focused on the 3D modeling itself: the different tools it provides and how it can be used to improve and optimize the geological study of an area. He also provided several examples, mainly from South America where he worked for several years, showing its different applications within geology: from 3D mapping of geochemical anomalies within a mine pit, to locating the subduction zones in the Andes Mountains using the information from seismic lines.

He concluded the talk making us aware that all geological data we might have can be modeled as soon as it can be codified and organized in a database. Moreover, any information contained within a database is better understood and can be better interpreted when we are able to easily visualize it, for instance using 3D modeling. Nowadays there are several softwares, like Leapfrog, that make 3D modeling much easier and friendly for all users and it is important for geologists to familiarize with them.

14-28/02/19 - METEORITES SHORT COURSE

The next 14th and 28th of february is going to take place a short course about Meteorites. The short course consists of two parts:

  • 14th of februrary, 18h - 20h: A theoretical part (introduction to meteorites and sampling techniques)
  • 28th of february, 18h-20h: A practical part (samples under a microscope). 

The course will be imparted by David Allepuz and Dr. Jordi Lorca, owners of the website http://meteorits.cat/For further information, you can send us a message to our e-mail: Esta dirección de correo electrónico está siendo protegida contra los robots de spam. Necesita tener JavaScript habilitado para poder verlo.

Registration in the following form: https://lnkd.in/gb3-QNr

We hope to see you there!

 

28/11/2018 – 5 th Informative Talk with Àlex Sendrós

Last 28th of November took place the 5 th session of Informative Talks organized by the Barcelona SGA-SEG Student Chapter. In this occasion, Àlex Sendrós presented the talk “Mineria de la potassa a Catalunya: El paper del geòleg en l’obtenció d’una relació sostenible amb l’ambient” (“Potash mining in Catalonia: The role of the geologist to obtain a sustainable relation with the environment”).

Àlex Sendrós works as an associate professor at the Faculty of Earth Science of the University of Barcelona and also in the Environment Department in the mining company Iberpotash-ICL Group in Súria and Sallent, in Catalonia (http://www.icliberia.com/?lang=en), since 2015.

Àlex talked about his personal experience as a Geology student and how he started working for Iberpotash-ICL Group. He talked about his work in the mine and the different protocols they developed in order to avoid contamination from the mining wastes. His talk was very clear and informative. At the end of the talk the audience asked several questions both related with the mining activities and his job as a geologist in the company, and with the experiences and decisions he made as a student. Àlex ended the session encouraging undergraduate students to travel and learn from different geological and social realities.

We would like to thank Àlex for participating in our Informative Talks sessions.

 

22/11/2018 – Visit to the Martorell Museum (Natural History Museum of Barcelona) for our 4th Informative Talk

Last 22 nd of November, we visited the Martorell Museum, which is part of the Natural History Museum of Barcelona. We were received by Yousra Haddad Belfkih, member of our Student Chapter, together with Yael Díaz, Marc Campeny and Vicent Vicedo, who are responsible for the petrological, mineralogical and paleontological collections. Yousra is doing an internship at the Museum documenting the petrological collection. To start the visit, they told us that the Museum was built thanks to the legacy that Francesc Martorell i Peña (1822-1878) left to the city of Barcelona in 1878. The Museum has been exclusively dedicated to geological collections since 1924. Then we were able to visit all the facilities. First, Vicent talked about the amount, storage and selection of the paleontological pieces. With Marc, we learnt about the preservation of geological samples and some important safety aspects during the conservation process. Finally, Yael showed us the library, which is specialized in the scientific disciplines of the Museum, the petrography laboratory, and how the team works with historical databases in order to adapt them to new technologies: http://www.bioexplora.cat/ncd/. We also did a small practice cataloging rocks and minerals under the guidance of David Fernández.

We would like to thank the entire team of the Museum for such a warm welcome and for their great predisposition to show us the daily work in the field of conservation and divulgation of geological heritage. If you want to know more about the museum, follow this link: https://museuciencies.cat/en/el-nat/las-sedes/museo-martorell/

5/10/2018 to 6/10/2018 – Field trip to the Western part of the Ronda ultramafic massif (Betic Cordillera)

This year, the Barcelona Student Chapter organized a field trip to the Ronda ultramafic massif (Betic Cordillera) as its main activity. The field trip took place 5 th and 6 th of October. The participants were 10 students (bachelor, master and PhD students) from Barcelona Student Chapter (including people from the University of Barcelona and the University of Granada) and the Prague Student Chapter. The field trip was led by Prof. Fernando Gervilla, full professor at the University of Granada, who was accompanied by Dr. José María González- Jiménez, from the University of Granada, and one of our advisors, Dr. Joaquín A. Proenza, from the University of Barcelona.
 
In this field trip, we were able to observe the different lithologies form the ultramafic massif of Ronda and the associated magmatic mineralizations. The lithologies consist mainly of lherzolites and harzburgites with minor dunite and pyroxenite layers. They represent a portion of subcontinental lithospheric mantle tectonically emplaced on Paleozoic metasediments during the Alpine orogeny (20-22 Ma). Three main domains are observed in the peridotites: i) spinel ± garnet tectonic domain, ii) granular peridotite domain, and iii) plagioclase tectonic domain. Regarding the magmatic mineralizations, they are spatially distributed according to the zoning of the massifs. We visited some outcrops of podiform chromitites within refractory peridotites in the plagioclase tectonite domain. The chromitites occur as small lenses, entwined veins or schlierens. These Cr ores contain up to 9 ppb Au and 2 ppm PGE.
 
Some pictures of the most interesting outcrops we visited during the fieldtrip are here below.
 
The field trip was a very good opportunity to understand and correlate the tectonic evolution of the ultramafic massif with the genesis of different types of magmatic ores. We would like to thank Professor Fernando Gervilla for sharing his knowledge and passion for the Ronda Massif.
 
Exceptional outcrop where a layering of serpentinized peridotites (black) and pyroxenites (white) is observed, corresponding to garnet-lherzolites.
Exceptional outcrop where a layering of serpentinized peridotites (black) and pyroxenites (white) is observed, corresponding to garnet-lherzolites.
 
 
The participants observing an outcrop of foliated peridotites.
The participants observing an outcrop of foliated peridotites.
 
 
Granular peridotites outcrop. It the upper part it is possible to observed an isoclinally folded pyroxenite vein in the granular non-deformed peridotites.
 
 
Participants of the fieldtrip in the Arroyo de la Cala chromitite outcrop.
 
 
Chromitite outcrop in the Arroyo de los Caballos area.

Field trip to the Ronda Ultramafic Massif (Betic Cordillera)

We would like to invite you to take part in the field trip organized by the Barcelona SGA-SEG Student Chapter to Ronda Ultramafic Massif (Betic Cordillera), with Professor Fernando Gervilla, from the University of Granada.

The field trip will take place the 5th and 6th of October 2018. During these days we will be visiting the western part of the Ronda Massif to see the peridotitic section of an ophiolite and the associated magmatic ores.

The accommodation will be in Estepona (Malaga, Spain). Participants are expected to arrive to Estepona the day before, 4th of October, so we can leave to the field all together from there the day after.

Transportation to the field and lunch (picnic) expenses will be covered by the Barcelona SGA-SEG Student Chapter, thanks to the SGA Educational Fund. The accommodation and travel expenses to Estepona will not be covered. Further details on how to arrive to Estepona from Malaga airport and accommodation in Estepona will be given later.

To inscribe to the field trip, please fill this form:

https://docs.google.com/forms/d/e/1FAIpQLSezUMYajhd3jPVJn-s6HgCo2bxzK9SSoVDCUSRACr_Z-mtB6w/viewform?c=0&w=1

Please, notice that field trip places are limited, so we will prioritize those participants who sent us a screenshot of the flight tickets to our email address   Esta dirección de correo electrónico está siendo protegida contra los robots de spam. Necesita tener JavaScript habilitado para poder verlo.  once they receive the confirmation email.

Please, contact us for any question.

22/06/2018 – 3rd session of our Informational Talks

Last Friday 22nd of June took place the 3rd session of Informative talks of our Student Chapter. In this occasion, one of our members, PhD student Ariana Carrazana, gave the talk with the title Desde la exploración al cierre de mina: distintas funciones de un geólogo de mineria a cielo abierto” (From exploration to the mine closure: the different functions of an open pit mine geologist), in which she talked about her former work as an exploration geologists in a mining company in Argentina.

The talk covered all the possible jobs a geologist is expected to perform in a mining company, and how they have a major effect in the good development of the mining operations. Her experience was a good example for many students that want to initiate their carriers in mining exploration, and encouraged them to do so. The session ended with some questions and discussions between the audience and the speaker.

We would like to thank Ariana for her instructive talk that allowed us to finish the Informative Talks of this academic year very successfully.

 

30/05/2018 - 2nd session of the Informational Talks

Last 22nd of March we started organizing a series of talks under the name Xerrades Divulgatives (Informational Talks) in which our student members and collaborators are invited to present a topic related with geology and their studies and experiences. First session was the turn of those students that participated in the field trip to Morocco with the SGA Marrakech Student Chapter. The talk was given by Oriol Vilanova, Berta Sagués, Malena Cazorla, Laura Poll and Joana Lluch, undergraduate Geology students from the University of Barcelona, under the title “Sortida de camp al Marroc” (Field trip to Morocco).
 
First session
 

The 2nd session of the Divulgative Talks was last 30th of May. Sebastián Betancur, an undergraduated exchange student from the Universidad Nacional de Colombia, gave the talk “Textures and mineral chemistry of Fe-, Ti-oxide ores in the Santa Marta anorthosite Massif, Colombia”. Sebastián gave a general introduction to the geology of Colombia and centered the talk in the Santa Marta anorthosite Massif, from which he is studying Fe- and Ti-oxides. He shared his experiences in the field during the sampling campaign and his experiences as an exchange student in our university. The audience showed great interest during the talk and found it very profitable. 

 
Second session