Trivedi assured the IUGS
Council that IGC 2020 in India would be an unprecedented Congress in the history of the IGC.
Working Group on Landslides--Committee on Risk Assessment.
The following steps in this issue depend on the International Subcommission on Silurian Stratigraphy of the IUGS
Many of the ideas and questions raised in this paper grew out of the IUGS
Geoindicator Initiative [www.
1979, Classification and nomenclature of volcanic rocks, lamprophyres, carbonatites, and melilitic rocks: Recommendations and suggestions of the IUGS
Subcommission on the Systematics of Igneous Rocks: Geology v.
The chronometric subdivision of the Precambrian, ratified by IUGS
in 1990, thus involves the familiar break down into the Archean and Proterozoic eons, further subdivided respectively into Eo-, Paleo-, Meso and Neoarchean eras, and Paleo-, Meso-, and Neoproterozoic eras.
7 Ma (International Stratigraphic chart 2010 available on the IUGS
ICS website) which is a rather short time interval, commonly more suitable for a stage.
Funding for these 5-year cooperative projects is provided through IUGS
(International Union of Geological Sciences) and UNESCO (United Nations Educational, Scientific, and Cultural Organization).
Secondly, for the geological survey and mapping purposes, the age of the basement suites is suitable to discuss according to the latest stratigraphic scheme issued by the IUGS
(Gradstein et al.
The Deposit Modeling Program supported by IUGS
and UNESCO (Cox and Singer 1986; Kirkham et al.
Commissions, Committees, Initiatives, and Task Groups are concerned with a wide range of geologic research of direct interest to governments, industry, and academic groups within the Earth Sciences.
Subcommission on Silurian Stratigraphy--Ordovician-Silurian Boundary Working Group.