Invitation: Field trip to Neogene Volcanic Field in Central Slovakia

Where: in area of Banská Štiavnica and Banská Bystrica
When: 7th (morning) to 10th (evening) October 2016

On the program will be predominantly localities in area of Ľubietová, Spania Dolina and Kremnica. Also we will visit active gold mine Rozália.

For more details check your emails (SGA Chapter Prague members) or contact our president Ondřej Krátký.

The 8th Siberian Early Career GeoScientists Conference

In June 2016, five members of our SGA chapter took part in DSC01727The 8th Siberian Early Career GeoScientists Conference in Novosibirsk, Russia. We have presented there our work and we all have participated in field trips to Altai mountains. It was great opportunity for us to discuss our thesis, observe work in different institutions and also learn geology in the field.

This trip would not be possible without the financial support of the SGA organization.

For more photos click here.

Gold from the Jílové u Prahy ore district (Central Bohemian Masiff)

On the 21st of May SGA Student Chapter Prague organized excursion to the historical gold mine located within the gold-bearing district Jílové Belt (located near Prague). We have visited historical adit Václav which led us directly to the Pepř mine. In this adit we had a chance to observe quartz stockworks with a little amounts of gold. During the mine visit we were able to collect some samples of gold-bearing quartz and also samples of scheelite mineralization from the Tobola vein. Some lucky students have even samples with small flakes of gold.

After the mine visit we have spent some time at the Museum of gold located at the city Jílové u Prahy.
Whole excursion was led by Dr. Pavel Škácha.


Excursion for the SGA Baltic Chapter (Bohemian Massif)

At the end of April, students from the SGA Student Chapter Prague prepared excursion to the Bohemian Massif for students from the SGA Baltic Chapter. During this trip, we had a chance to visit Mokrsko gold deposit located at the Jílové belt, former silver/uranium mine Svornost at Jáchymov city and several localities of greisen and skarn mineralization at the Erzgebirge Mts. This four-day field trip was a great opportunity to exchange ideas and make connections between our two SGA Student Chapters.

SGA News No 39 page 22

gallery Barbora

Emeralds: from mines to jewels

Prof. Alain Cheilletz (University of Lorraine, Nancy, France)

26th April 2016- Mineralogical auditorium, 14:50 h.
(SGA keynote program)

Institute of Geochemistry, Mineralogy and Mineral Resources
2nd floor, Albertov 6, 128 43 Prague 2

You are Welcome!


Field trip to Morocco (High Atlas)

Thanks to cooperation with the Moroccan Chapter we organized international field trip to important Morocco bearings, participated by members of Prague Chapter and Moroccan Chapter in 13th to 21th March,2016 . Five czech members flew to Marrakech and visited some interesting deposits in High Atlas area (6th-13th) before the common program with our Moroccan colleagues.

Mibladen area

Mibladen area


Bou Azzer

Our program started with visiting Mibladen, area with galena mines and world-famous crystals of vanadinates. Then we explored also Taouz (Pb veins), Imilchil (pegmatites) and Imini (Mn ore). Poor vegetation on numerous large outcrops gave us great opportunity to study geology even from car.

In 13th March we met with Mococcan SGA chapter in Agdz and next day we looked at the Bou Azzer mining district and ophiolitic suture zone (Pan-African mineralization of the Anti-Atlas belt (Co-Ni-As) with nice samples of skutterudite).

pyrhotine in shale

pyrhotine in shale (Draa Sfar)

In following days our interests were heading to variscan central Jebilet Massif with visiting Draa Sfar Mine (VMS polymetallic ore deposits), the Kettara district (VMS and SEDEX) and the BirN’Has deposit (base metal veins in metapelites and carbonates). Thanks to MANAGEM mining company, we could visit their underground mines.



Then a Meeting took place at the Faculty of Sciences Semlalia, Marrakech. Prof. Omar Saddiqi (Hassan II University, Casablanca) was talking about the Geology of Morroco. Mr. Mustapha Chaib (ONHYM mining company, Rabat) have been presenting about the Moroccan mining potential. And Mr. Jan Bubal (Prague Chapter) had presentation about the Geology of Czech Republic.

Next field visit was directed to the Azegour Skarn deposit and surrounding areas (Mo, W, Cu deposits; western High Atlas). And the last day we visited Benguérir phosphate deposit (Cretaceous/Tertiary) with OCP mining company.

outcrops everywhere

outcrops everywhere

SGA News No 39 page 1

For more photos click here.


Central Krušné hory Mts. (Erzgebirge): Freiberg and small stops on the czech side

Last excursion of the 2015 (7th-8th November) led us to German city Freiberg, where we visited the historical shaft (Pb-Zn-Ag vein type mineralization) and the Terra Mineralia exposition with world famous mineral samples.

Pavel with Pb-Zn-Ag vein mineralization

Pavel with Pb-Zn-Ag vein mineralization

On the second day it led us to Antonsthal ore heap (skarn) and localities in the field on the Czech side of the borders: Loučná (pyroclastics with large pseudoleucite crystals) and Ahníkov (lateritized ultramafic body with veinlets of pink and violet chalcedony).



This two-day excursion provided interesting insight into geology and history of mining at the Saxony and it was a chance as well to visit one of the best mineral collection in the World. This excursion was attended by 22 Chapter members.

SGA News No 39 page 18  
For more photos click here.

Mineral deposits of Poland (Mississippi Valley type and the Kupferschiefer)

Traditional October field-trip (10th-13th, 2015) of the SGA Student Chapter Prague was this year dedicated to mineral deposits of Poland.

Main attractions of this four-day field trip were underground visits to the two active mines – Pomorzany mine (Pb-Zn, Mississippi valley type deposit) and Polkowice-Sieroszowice mine (Cu, Kupferschiefer type deposit) run by the KGHM Company. We have also visited the famous salt mine Wieliczka and the historical city Krakow.

Polkowice-Sieroszowice mine

Polkowice-Sieroszowice mine (salt)

10th: Tourist mine Kletno located in the Snieznik Massif (U) and historical city Krakow.
11th: Salt mine Wieliczka and students from SGA Baltic Student Chapter prepared lectures about the main mineral deposits of Poland
12th: Active underground mine Pomorzany located within the Olkusz area and dumps of the Bytom area (Pb-Zn Mississippi Valley type)
13th: Active Polkowice-Sieroszowice mine (Kupferschiefer and salt)

This trip would not be possible without the amazing help of the former SGA Baltic Chapter president Joanna Kolodziejczyk and we would like to thank her a lot for her help and effort she put into this. Also we would like to thank to Władysław Zygo and Jaroslav Prsek for accompanying us at the mine visits and to KGHM Company for making the underground visit possible.

SGA News No 39 page 17                      


Polkowice-Sieroszowice mine (Kupferschiefer)

For more photos click here.

Stříbro and Planá-Michalovi hory ore district (Western Czechia)

One day field trip to Western Czechia was held on 18th May 2015. vozíky u štoly Prokop, Stříbro

Twelve students led by Mgr. Jan Bubal visited Open-Air museum in Stříbro with visiting of gallery Prokop and near ore heap (Pb-Zn mineralization).

Close to Stříbro, we also looked at the Vlčí hora Mnt. consist by tertiary basalts and pyroclastics with large phenocrysts of augite and amphibole. 

ore heap near Stříbro
In following area Planá-Michalovi hory ore district we saw some old open pits with Pb-Cu-Ni-Co mineralization.

For more photos click here.