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International Union of Geological Sciences
Contact IUGS
Permanent Secretariat
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Director of IUGS Secretariat:
Mr. Ma Yongzheng
26 Baiwanzhuang Road, Xicheng District, Beijing 100037, China
Tel: +86-10-5858-4808
Tel: +86-10-6831-0893
Fax: +86-10-6831-0893
Mobile: +86-13901183838
Email: secretariat@iugs.org
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