Collaborate to update Jamaica's geological database

THE EDITOR, Sir:

I note Professor Simon Mitchell's observations on the outdated nature of our national geological database that he mentioned in his letter of July 14, 2012 titled 'Jamaica must update its geological database'. I would like to add and perhaps improve on Professor Mitchell's statement.

First, let me clarify his conclusion about the geological maps and their supposed contribution to the delays faced by several of our national projects.

Professor Mitchell states that the maps are outdated. Be it understood that, even if the latest geological information was published, major infrastructure work in any terrain, including Jamaica, requires thorough, site-specific geotechnical studies. Geotechnical studies include both surface and subsurface investigations and are only guided by surface geology maps.

overlook the constraints

As they now stand, our national maps still have the ability to guide considering that the rock types have not changed. Additionally, at the existing scale, it is intuitive that detailed surface mapping is a necessary follow-up.

Professor Mitchell seems to overlook the constraints that the National Geological Survey faces, specifically in its finances. Since its establishment in 1949, the survey has been intimately involved in national development projects providing geological advice. It has also contributed to the founding of many departments and agencies, including the Department of Geology at University of the West Indies.

Collaboration between the survey and UWI Geology resulted in the production of the 1970s maps that Professor Mitchell cites. This collaboration was significant in propelling the published maps, but had since waned in the 1990s. Geological research by both organisations has since continued separately.

With limited public funding, the survey continues to update the national geological database. This constraint has also kept information from being published as regularly updated maps.

Developers, technical professionals and all citizens are still able to benefit from current geological information, including sound advice from experienced government geologists.

In highlighting the need for updated maps, Professor Mitchell unknowingly proposes that the survey and UWI Geology should renew ties. The survey has the official mandate to collect, compile and communicate all information on our local earth materials. UWI Geology, on the other hand, is known for exemplary advances in local geological research.

I, too, support this partnership, not being one for the simple exchange of information, but as an intimate alliance to better manage our geological assets for national development, making Jamaica the place of choice to live, work, raise families, and do business.

SURESH BHALAI

sbhalai@mgd.gov.jm

Kingston