IGCP 653 - Annual Meeting 2017

Filling the gap between the Cambrian Explosion and the GOBE
October 8 - October 12, 2017. Yichang, China

Last update10-29-2017

Welcome !

 General Information

The 2017 annual meeting of IGCP 653 will be held on Oct. 8 to 12, 2017 in Yichang City, Hubei Province, China. The meeting, entitled ‘Filling the gap between the Cambrian Explosion and the GOBE’, will investigate the initiating causes and processes that produced the rapid diversification of marine organisms during the Ordovician Period, known as the ‘Great Ordovician Biodiversification Event’ (GOBE). Because the timing of the radiations varied among biotic clades and palaeocontinents, and may have its roots in the Cambrian, stratigraphic sections ranging from Guzhangian (Series 3, Cambrian) to Upper Ordovician will be visited during the post-conference field excursion. A workshop on the Burgess Shale–type Guole Lagerstätte of the Jiangshanian (Furongian) age from Guangxi Autonomous Region, South China will be organized during the meeting for participants to examine specimens of trilobites, non-trilobite arthropods, brachiopods, graptolites, cnidarians, echinoderms, hyoliths, palaeoscolecids worms, algae, etc. from the site.

The meeting in Yichang includes three days of indoor academic sessions for delegates to present their latest research, and a full day mid-conference field trip to the GSSPs of the Dapingian and Hirnantian stages and a few scenic spots and historical sites near the Yichang City.

Yichang, located in western Hubei Province, central China, is one of the major cities in the Yangtze Gorges area. The city has a long and glorious history since the Han Dynasty (over two thousand years ago). It has now developed into a modern city of industry, business and tourism, with a population of 4 million. Among the most popular tourism sites near the city, are the spectacular Yangtze Gorges and the Three Gorges Dam (hitherto the largest dam in the world).

Yangtze Gorges area was the birthplace and cradle of modern Chinese geology, where J.S. Lee and A.W. Grabau conducted and published their geological investigations early in 1920s. The area yields many classic geologic sections of Neoproterozoic to Permian ages, amongst which include the GSSPs of the Dapingian and Hirnantian stages (Ordovician). The Cambrian and the Lower Ordovician rocks in this area are of typical shallow-water, platform facies, which consist of carbonates and shales. It is also a classical area of practical courses in teaching field geology for college students owing to its complete marine stratigraphic records of the Cryogenian to the Triassic.

Welcome to Yichang!


Important dates

December 20, 2016: Distribution of First Circular

March 1, 2017: Website of the conference available for information and registration (actually available on May 1, 2017; http://igcp653-china2017.geobiodiversity.com/)

May 1, 2017: Distribution of Second Circular

August 15, 2017: Deadline for submitting abstracts or extended summary through the web of the Yichang meeting (http://igcp653-china2017.geobiodiversity.com/) or to the e-mail box of the meeting ( This email address is being protected from spambots. You need JavaScript enabled to view it. ). The deadline has been extended to August 31, 2017.

September 15, 2017: Distribution of Third (last) Circular

October 8, 2017: Icebreaker of the meeting

October 13, 2017: Start of the post-conference field excursion

December 31, 2017: Deadline for submitting proceeding paper to Palaeoworld