OPOMNIK: IJS KOLOKVIJ, sreda, 18. 4. 2012, dr. Alexey Ekaykin

[Barbara Hrovatin]

Vabimo vas na 18. predavanje iz sklopa "Kolokviji na IJS" v letu 2011/12, ki
bo v sredo, 18. aprila, 2012, ob 13. uri v Veliki predavalnici Instituta
>Jožef Stefan< na Jamovi cesti 39 v Ljubljani. Napovednik predavanja najdete
tudi na naslovu http://www.ijs.si/ijsw/Koledar_prireditev, posnetke
preteklih predavanj pa na http://videolectures.net/kolokviji_ijs. 

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

 

Dr. Alexey Ekaykin

Arctic and Antarctic Research Institute, 

St. Petersburg, Ruska federacija

 

 

Iz preteklosti v sedanjost z vrtanjem ledu 

Zgodovina globokega vrtanja v ledu na antarktični postaji Vostok in
raziskave jezera Vostok

 

5. februarja 2012 so izkušeni ruski mojstri vrtanja obrnili nov list v
zgodovini raziskav Antarktike, saj jim je v osrčju snežne puščave na ruski
postaji Vostok uspel dokončni preboj ledu do tekoče vode jezera, ki je bilo
skrito pod 4 km debelo plastjo ledu milijone let.  Do tega je vodila dolga
pot, polna skrivnosti, tragedij, razočaranj in sreče. V predavanju bo
predstavljen pregled ruskih aktivnosti s poudarkom na izvedbi globokega
vrtanja v ledu na postaji Vostok in raziskavah podledeniškega jezera Vostok.
Izvedeli bomo, kako je bilo jezero odkrito, zakaj ga je pomembno
raziskovati, kakšno je obstoječe znanje o njem ter kaj naj bi nam povedali
pričakovani rezultati raziskav jezerske vode. Predstavljen bo klimatski
zapis preteklih 420.000 let, ki predstavlja glavni dosežek globokega vrtanja
v ledu na postaji Vostok. Prikazan bo tudi potek vrtanja med zadnjo poletno
ekspedicijo od novembra 2011 do februarja 2012, ki vključuje edinstven
trenutek prodora v jezero, doslej še nikoli predstavljen v javnosti.

Predavanje bo v angleščini.

Lepo vabljeni!

 

*****

 




We would like to invite you to 18th lecture of the "Kolokvij na IJS" in the
school year 2011/12. The lecture will be held on Wednesday, April 18, 2012,
at 1 pm at the JSI main lecture hall, Jamova 39, Ljubljana. The abstract of
the lecture can be found on website:
<http://www.ijs.si/ijsw/Koledar_prireditev>
http://www.ijs.si/ijsw/Koledar_prireditev, the previous recorded lectures
can be found on website:  <http://videolectures.net/kolokviji_ijs>
http://videolectures.net/kolokviji_ijs. 

********************************************

 

Dr. Alexey Ekaykin

Arctic and Antarctic Research Institute, 

St. Petersburg, Russian Federation

 

Drilling the Ice from the Past to the Future

The history of deep ice drilling at Antarctic Vostok Station and Lake Vostok
exploration

 

 

On the 5th of February 2012 the hardened hands of drill masters turned a new
page of the chronicle of the Antarctic exploration. In the heart of the snow
desert at Russian Vostok Station, the head of a boring machine pierced the
glacier to touch the water of the huge lake that had been hidden under 4 km
of ice for millions of years. A long way led to this event, full of mystery,
tragedy, disappointment and luck. An overview of Russian activities with
focus on deep ice drilling at Vostok Station and the investigations of the
subglacial Lake Vostok will be presented. How the Lake was discovered? Why
is it important to explore it? What do we know about the Lake now? What
shall we know after penetrating it? These and other questions will be
addressed here. In addition, the climatic record over the past 420.000
years, as the main achievement of the Vostok deep ice coring, will be
shortly discussed. Finally, the drilling operations that were carried out
during the last summer expedition from November 2011 to February 2012 will
be shown and some unique materials will be for the first time presented to
the public to demonstrate the moment of the penetration to the Lake.

 

We look forward to meeting you at the "Kolokvij na IJS"!

 

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