SEG 45 Final_qx4 - Society of Economic Geologists

38 SEG NEWSLETTER No 53 • APRIL 2003
B1 Cretaceous Porphyry-Epithermal
Systems of the Srednogorje Zone,
Bulgaria
ANNOUNCEMENTS
A Special Issue of the
Journal of Exploration and Mining Geology
on
ANCIENT AND MODERN
SEAFLOOR VOLCANOGENIC
MASSIVE SULFIDE DEPOSITS
Peter A. Rona and Zengqian Hou, Guest Editors
A special double issue of the journal, Exploration and Mining
Geology, was published on March 21, 2001 (backdated
Volume 8, Numbers 3 and 4, July and October 1999), dedicated
to the memory of the eminent Russian ocean ridge geologist
Sergey Krasnov (1952-1996). The special issue accesses
for the first time new Chinese work on volcanogenic massive
sulfide (VMS) deposits, as well as related seafloor hydrothermal
research by the international community. The Chinese
papers report a surge in exploration for and discovery of
ancient VMS deposits in P.R. China, stimulated by discoveries
of active systems at ocean ridges and volcanic island arcs.
A summary of topics of the issue and ordering information
follows:
Eulogy for Sergei Krasnov
ANCIENT VOLCANOGENIC MASSIVE
SULFIDE DEPOSITS IN CHINA
MODERN SEAFLOOR HYDROTHERMAL
DEPOSITS
Volcanic Island Arcs and Ocean Ridges
Volcanic Island Arcs
Ocean Ridges
The special issue may be ordered from:
Publisher, Geological Society of the Canadian Institute of
Mining, Metallurgy and Petroleum
Suite 1210, 3400 de Maisonneuve Blvd.
West Montreal, Quebec
Canada H3Z 3B8
Tel.: (514) 939-2710, ext. 320; Fax: (514) 939-2714;
E-mail: publications@cim.org
Website: http://www.cim.org/geosoc/emgVol8-03.cfm
Price: CDN$40.00/US$27.00
PREPAYMENT REQUIRED IN CANADIAN OR U.S. FUNDS
August 29–September 2, 2003
Organized by the Society of Economic Geologists
Field trip leaders:
Prof. Kamen Bogdanov, Sofia University, and
Prof. Strashimir Strashimirov, Mining University, Sofia
The Srednogorie metallogenic zone in Bulgaria developed during the
Mezosoic as an andesite-dominated island-arc system within the
global Tethyan-Eurasian copper belt. Significant examples of discrete
Upper Cretaceous volcano-plutonic centers with porphyry-copper
(-Au-PGM) deposits (Elatsite, Medet, Assarel), closely associated
with intermediate- to high-sulfidation (HS) Cu-Au epithermal
deposits (Chelopech, Radka, Elshitsa) occur in the Panagyurishte ore
district. Since 1950 more than 460 Mt of ore has been mined from
these deposits, producing about 2 Mt Cu and 2.5 Moz of gold.
During the three-day field trip the participants will tour the
three major porphyry-copper deposits in Bulgaria (Elatsite, Assarel
and Medet) as well as the Chelopech HS epithermal Cu-Au mine,
learn about the local geology, see and sample host-rock alteration
styles and important ore types, and discuss their genesis.
The field trip starts in Sofia, Bulgaria, on August 30. The registration
fee includes accommodation in Sofia from August 29 to
September 2 (4 nights). Participants are asked to arrange their own
travel between Athens and Sofia.
DAY 1 (August 30):
Sofia; Pangyurishte ore district;
Assarel and Medet porphyry
copper deposits; Lunch
at Panagyurishte; Sofia
DAY 2 (August 31):
Sofia; Etropole-Elatsite Cu-Au-
PGM porphyry-copper deposit;
Lunch in Etropole; Sofia
DAY 3 (September 1):
Sofia; Navan-Chelopech HS
epithermal Cu-Au deposit;
Lunch at Koprivshtitsa; Sofia
(accommodations in Sofia
included)
Provisional cost: SEG and
SGA members US$395; nonmembers
US$495, for early
payment by 30 June; after
this date, SEG and SGA members
US$495, non-members
US$595; SEG and SGA student
members, US$200 (limited
seats available).
Maximum number of
participants: 36, minimum
number of participants: 20
Registration deadline
April 25th. Please send your
request for a registration form
to Prof. Kamen Bogdanov ,
Sofia University St. Kliment
Ohridski” Faculty of Geology
and Geography, Department of
Mineralogy, Petrology and
Economic Geology, 15 Tsar
Osvoboditel Bd. 1504 Sofia,
BULGARIA
tel. (+3592) 9308256,
fax: (+3592) 9460255,
e-mail: kamen@gea.uni-sofia.
bg OR to SEG, 7811 Shaffer
Parkway, Littleton, CO 80127,
USA, tel.: (+1-720) 981-7882,
fax: (+1-720) 981-7874,
E-mail: seg@segweb.org, or
visit the SEG website at
www.segweb.org.
Registration and payment
should be made directly to
the SEG office.