IGCP projects related to Gondwana

GOND WANA NEWSDESK

August 6- I 7, 2000, The theme

Rio de Janeiro, Brazil

of the conference

Sustainable

Development:

Third Millenium”.

Chalenges

Sessions

America.

There

will include

Metallogeny

South

of international special attention

will be Special

events in East Gondwana evolution of Proteozoic Atlantic

America;

for the

of the continent

the following

and

will focus on frontier

subjects and hot spots geoscientific research, with the unique conditions

Rifting

is “Geology

Symposia

sessions:

to

of South that

Proterozoic

(IGCP 368); Tectonic Orogenic belts; Pre-

of West Africa

Geodynamics

and Eastern

of Continental

(IGCP

Systems

400);

and

Supercontinent

Neoproterozoic

Assembly (IGCP

419);

Gondwana

Mesoproterozoic

Orogenic Systems, Supercontinent

and Assembly (IGCP 418);

Palaeogeography Western Gondwana.

and

Correspondence President,

to:

of Rodinia Devonian

Paleoclimatology

Prof.

Preparatory

Orogenic

of

Hernani

Commision

of

Chaves,

for the 31st

IGC, Ave. Pasteur, 404, Urea: Cep 22290-204, Rio de Janeiro, Brazil. Tel: +55-21-295-5847; Fax: + 55-21-295-8094; E-mail: 31 igc@31 igcorg; Web site: http:lJwww.31

igc.org

IGCP PROJECTS RELATED TO GONDWANA IGCP 411 DERIVED

GEODYNAMICS OF GONDWANATERRANES IN EAST AND SOUTH

ASIA: THEIR CRUSTAL EVOLUTION, EMPLACEMENT AND NATURAL RESOURCE POTENTIAL (S. HADA) Contact

address:

Professor

Shigeki

Hada,

Research Institute University, Japan.

for Higher

Education,

Kobe

welcoming Malaysian Prof.

S.

speech Hada

project,

by the

IGCP Committee, was

(Japan), proposed

Chairman

the

proposer

and elected

Leader. After discussion

of the

Dr Chen Shick Pei. of the

as Project

it was agreed that Prof.

Hada should be assisted by four Co-Leaders. Prof. I. Metcalfe (Australia), Prof. Tran Van Tri (Vietnam),

Prof. J. H. Kim (Korea)

and Prof. Jin

Xiaochi (China) were appointed as Co-Leaders. Again, following discussion, it was agreed that

Aims associated with the final assembly of Gondwanaderived terranes into the Asian continent, the

the appointment of a Project Secretary should be defered for the time being and that, after further consideration, an appointment should be

final emplacement

made

To

understand

South

Asia

the

processes

of these terranes

and the

and energy resource Crustal evolution

geodynamic

evaluation potential

and mantle

in East and

of the

mineral

of these terranes. processes,

tectonic

processes of emplacement and potential of natural resources in the Asian continent will be analysed within derived terranes India, Myanmar, Vietnam, Russia.

a framework of Gondwanain the vast region embracing Lao PDR, Thailand,

Indonesia, The

disciplinary

China,

project

approach,

metamorphism, biogeography, and petroleum

will

Korea, involve

including

sedimentation,

Cambodia, Japan an

igneous tectonism,

and inter-

activity, palaeo-

palaeomagnetism, metallogenisis and coal geology”.

by Prof. Hada.

The project

will lead to a new

of the tectonic

processes

amalgamation and accretion fragments to form the Asian distribution of natural mineralisation

of terranes

understanding

associated

with

the

of Gondwanaland continent and the resources and

in relation

to tectonic

features, and sedimentary processes within hydrocarbon and coal-bearing sedimentary basins.

Geodynamic

and

tectonic

processes

during the Late Palaeozoic to Palaeogene be investigated using an interdisciplinary.

will This

project is the successor project to the successful IGCP Project 321 (Gondwana Dispersal and Asian

Accretion).

Project news

It was agreed that the following general work plan and research will be undertaken during the

The first planning meeting of IGCP 41 1 was held at the Ninth Regional Congress on Geology, Mineral and Energy Resources of Southeast Asia (GEOSEA ‘98) at the Shangri-La Hotel, Kuala Lumpur from 17-l 9 August 1998. The IGCP 411

project: i) Igneous and Metamorphic activity. Distribution and characterisation of igneous and metamorphic rocks in the collision zones, consuming plate margins and post-erogenic magmatism, and

business meeting was attended by 33 participants from 15 countries. The Chairman Dr T. T. Khoo (Malaysia) opened the meeting with introductory remarks, followed by a

tectonic setting of their activities with .the characterisation of metallogenesis. ii) Sedimentation. Spaciotemporal changes of depositional environments in and around

496

Journal

of African

Earth

Sciences

GOND WANA NEWSDESK

continental activity,

margins,

tectonic

and their relation

of their and coal

Distribution.

determining

Regional

biogeographical

palaeoenvironmental

and

analysis of both marine and

and the changing

tectonic

features

terranes

in collision

information on of continental

spatial

and the

distribution

studies

of regional

recognition

zones.

of

of small

Characterisation

of

shear zone development and final emplacement of accreted terranes by continuing plate movement, including the the collision between India and Asia. vi) Natural distribution, useful

Resources geodynamic

natural

Potential.

Time-space

and tectonic

resources

and

setting

their

tectonic

in each terrane.

It was further proposed that one of the aims of IGCP 411 should be to compile a new tectonic map

of

east

and

south

Asia

defining

the

Gondwana-derived terranes and showing their distribution and their marginal sutures. It was pointed recently

out

that

prepared,

a number

of

or are

in the

groups

have

process

of

agreed

projects

tectonic

need to be

map.

to be the

Dr Koji

convener

of

the Working Group of IGCP 411 responsible for the map project. They would enlist additional of the Working

The group preparation organised Schedule 1999

progress in the at each meeting

of IGCP 411.

of meetings

1 O-20 August:

Meeting

Group as appropriate.

would report of the map on behalf

in Yichang,

First Symposium China.

IGCP 368 ‘Proterozoic

and Field

A joint Meeting

with

Events in East Gondwana’.

2000 August (tentative): Second Symposium and Field Meeting in Korea. 2001 October (tentative): Third Symposium in Thailand

of

maps for parts of the region

in the new

(Japan)

members

organisms.

seas and oceans. v,JTectonism. Comparative

features

tectonic

and that the results of these Wakita

correlation,

distributions

iv) Palaeomagnetism. Detailed the movements and deformation blocks

preparing, incorporated

resources. iii) Biotic

terrestrial

setting

to petroleum

and Vietnam

with

the form of a Geotraverse PDR and Vietnam.

a Field Meeting

across Thailand,

2002: Fourth Symposium in Japan, publication of the final report. 1999-2001: Group

It is expected

meetings

participating Bibliography prepared Organising

will

leading

that Annual be

held

in

several and a will be

and circulated

to participants

Committee

during this period.

of African

Earth

to

Working

countries. Newsletters of the relevant literature

Journal

in Lao

by the

Sciences

49 7