XIV

IGCP 368 meetings during IGC, Beijing

M. YOSHIDA

the 30th

Osaka City University, Japan

Business meeting of IGCP 368 A business meeting of IGCP 368 was held on 8th August 1996 during the 30th IGC, at the China World Trade Centre in Beijing, China. The objective of the meeting involved:

i) reporting on past activity and the introduction of the planned near-future program of the project;

ii) advertisement of the project, specifically to Chinese scientists; and

iii) an exchange of ideas on the activity of the project.

At the meeting, about 20 scientists from various countries including Canada, China, India, Germany, Japan, South Africa, Sri Lanka, etc participated and the following achievements have been obtained:

i) Some Chinese scientists studying the Precambrian terranes of China have joined the project. Thus, Precambrian studies in China will be incorporated.

ii) The near-future plan of the project was discussed in some detail and plans for the meetings in Strasbourg in March 1997 and in Madagascar in August 1997 have been improved.

Scientific seesions related to IGCP 368 The scientific session of IGCP 368 during the 30th IGC was jointly included in the session 8-6 “Major Precambrian Events and the Division of Tectonic Episodes”, with other IGCP projects (8-9th August). The oral session on the 8th was chaired by H.C. Halls, Xianglin Qian, and M. Yoshida, and about 30 scientists from various countries participated. A total of 10 oral and 7 poster presentations were registered in the abstract volume. IGCP 368 members from various parts of the world also contributed to the following sessions including “Recent Progress and a Review of Results of IGCP Supercontinent Formation and Dispersal: Rodinia, Gondwanaland and Pangea”, chaired by V. Babuska, McA. C. Powell and Tao Huilliang, and

8-4 “Tectonics, Geochemistry, and

Minerogenesis of Proterozoic Mobile Belts” chaired by K.C. Condie and Sun Dazhong. Some

other members of IGCP 368 also contributed to the sessions F-3 “Tectonic Evolution of the

Circum-Pacific Continental Margins”, F-6 “Lithospheric Structrue and Dynamics of the Antarctic Continent and Its Continental Shelf”, F-8 “Tectonic Evolution of the African Continents”, G-2 “System of Palaeoplate Tectonics of Orogenic Belts and Ophiolite” and 19-5 “Mathematical and Statistical Data Analysis in Geology“.

International symposium and field workshop on the Proterozoic

continental crust of southern India

M. SATISH-KUMAR and Y. TANI

Osaka City University, Japan

The symposium The first international symposium and field workshop of IGCP 368 was held during 20-27 August, 1996, at Trivandrum, India, which involved a two-day of symposium and a five- day field workshop. The symposium was attended by scientists from 16 different countries involved in research related to Gondwana terranes. Eighty four papers were presented (oral and poster) in six scientific sessions. The session “Gondwana terranes and Correlations” contained 21 oral presentations and several poster presentations, dealing with the major tectonic and geochronological characteristics important for Gondwana reconstruction. New results from Antarctica, Sri Lanka, India, Madagascar and Africa led to many discussions on East Gondwana correlations, especially about the little known India-Madagascar sector. The following session “Structure and tectonics” looked upon the structural and deformational histories of smaller domains within East Gondwana. The theme “Metamorphic P-T-t paths and metamorphic processes” consisted of 26 oral presentations and many posters. The papers concentrated on deducing the metamorphic conditions and evolution of terranes based on reaction histories and thermobarometic computations. Evolving ideas include the identification of high temperature metamorphism and the involvement of a magmatic heat source. The use of stable isotope monitors in metamorphic processes was also stressed. Gondwana sediments and mineralisation were themes which were under-represented and warrant more research. Several business meetings of working groups and associations took place. The superb organisational talent of