Natàlia and I have done an interview in to Gonçal Ribas who works into the IGC CST Pirineus (
Institut Geològic de Catalunya, Centre de support territorial Pirineus).
What does the CST do?
In this centre we do activities of divulgation for
students, enterprise technician, geologists and
engineers too. For example in the build of a bridge we can proportionate them
information about the sediment. This is more related with the social part.
As activities of research and development, geologic
cartography, geothematic cartography, the sun science, geologic engineer,
geophysics, hydrogeology, geologic patrimony, land slaves prevention, geologic
risks, seismology and control and measure of nets, those are all of the
activities that we work.
Which are your objectives?
It is necessary to mark the support with the lands slaves
prevention, whereas others geological risks of the own zones of the mountain.
It’s foresees to do research projects and development and to establish pilot
areas, in collaboration with universities, research centres and another private
and public institutions.
The Pyrenees CST wants to be a reference centre and a
support for professionals, for university centres or for educative which need
to dispose about resources and installations suitable for their formation tasks
and the study of the zone.
Why the CST was build here?
As a consequence of the process of collision between
Iberian plate and the European’s one the Pyrenean area has made folds and
mantles which deformed materials from the area.
The central part of the mountain range is build with
former Palaeozoic rocks. The topography of the Prepyrenean is more vigorous,
made up basically for Mesozoic and Palaeogene rocks which are younger than the
ones before.
The rocks which form the superior south-Pyrenean
mantle are the old mud, sand and loose stone that were deposit on sediment
basins, where almost all of them were under sea level. These rocks not only
preserve animal and plant remains which lived in those past environments,
besides they preserve the original sediment form.
As a result of everything Pyrenees have a dimension
and suitable conditions for the study and the comprehension of lots of geologic
structures which are similar to other ones in different parts of the world,
especially the ones in Texas.
We could say Conca de Tremp is like a book, where
there are all the rocks of million years ago in a relative low layer deep.
Was there any other option in Catalunya to build this
centre?
We would say yes, in 2009 when it studied the
possibility to build a centre like this. There were other places but the
advantages that this zone has, done easily the edification of the centre in
Tremp.
Currently, how many geologists work here?
We are 6 superior technicians.
What kind of instruments do you use?
When we go to de field to do cartography we take
magnifying glass, a little stereoscope to see the threedimensional air photos, compass, hammer, tape measure, Jacobs rod ( to mesure the long parts of the rocks), GPS, etc. There are others disciplines which we also work and which require field utensils more sophisticated like the case of the geophysics or geotechnical works.
magnifying glass, a little stereoscope to see the threedimensional air photos, compass, hammer, tape measure, Jacobs rod ( to mesure the long parts of the rocks), GPS, etc. There are others disciplines which we also work and which require field utensils more sophisticated like the case of the geophysics or geotechnical works.
But, concerning about inside of the IGC CST Pirineus,
now we have a machine which have been financed for Repsol, that we have
collaboration agreement which is called Multi Sensor Core Logger (The MSCL are
a kind of machines used to do laboratory trials where it can hitch different
types of sensors as a result of get different physic properties of the
materials. The fields of his application concern the Engineering, Geotechnical,
Geology, geology risks, Hydrogeology, seismology, environment, etc...)
Concerning about the seismology, is the basin of Tremp
a place where there are many earthquakes?
Here, it’s a zone which there is constants microseisms
because the Pyrenees is the results of the continental drift of the Iberian
plate least the Mesozoic era and his final collision with the European plate
least the Cenozoic era, but they don’t exceed the degree 2, therefore we can’t
perceive them. Sometimes, as the Sort’s seism with degree 3 in which there are
a minor movement of tables, glass... We answered some calls.
What are the “Emmagatzematge geologic de CO2”? Has got
any risks?
The geological stock up is a measure useful to reduce
the CO2 of the atmosphere. However it’s in development, some countries like
Norway has already developed this system. It consists about the injection of
CO2 into some rocks which has specific properties that doesn’t let the CO2
escapes. In this studies the collaboration of chemists, physics, biologists,
geologists, etc, is fundamental.
Risk? Yes, always that the nature is modify there is a
risk but there are also a cautious studies about the results and this depends
of the pressure, the amount, etc. The result of this injection is microseisms.
In the other hand, it exists the ethic part. These
studies and measures has a huge economic and energetic cost. It could set out
the investment of these costs into the reduction and consciousness-raising
about the CO2 emissions.
Why did you choose the profession of geologist?
As a matter of fact geology was my second option, I
don’t enter into the career that I would like but I think that If you put some
other as a second option is because both are related and because both likes you
too. I chose it because I love the nature and work for the preservation of her.
Do you like to work here?
I was born here, I love my land and yes, I love this
work.
Natàlia Boneta and Maribel Gasa