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alive and well - Geological Society of Australia

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<strong>Society</strong> UpdateFrom the AJES Hon Editor’s deskAJES Impact Factor 2011The two-year impact factor for AJES is 1.417 with a ranking<strong>of</strong> 80 out <strong>of</strong> 150 in the Geosciences Multidisciplinarysubject category. Although there has been some volatilityin AJES impact factors over the last 15 years, this is the thirdhighestimpact factor for this period. The two-year impact factorhas been greater than 1.0 every year since 1999.New simplified access to online AJESSeveral members have had difficulty accessing AJES online sowe have been working with Taylor <strong>and</strong> Francis publishers toprovide an easier process. The model we are moving to is<strong>Society</strong> Member access. We envisage starting the roll-out <strong>of</strong>this access model in early October. Retired members are likelyto be contacted first. This model relies on each memberindividually authenticating their identity once <strong>and</strong> once only.After that is done, as long as a member is financial there willbe no interruption to online access.The GSA will communicate directlywith members during the roll-out <strong>of</strong>this different model.Upcoming in AJESTwo big thematic issues 59/5 (Archean evolution — YilgarnCraton: Guest editors Kevin F Cassidy <strong>and</strong> Stephen Wyche) <strong>and</strong>59/6 (Evolution <strong>and</strong> geodynamics <strong>of</strong> the Indo-<strong>Australia</strong>n plate:Guest editors Myra Keep <strong>and</strong> Wouter P Schellart) were recentlypublished in time for the IGC. Issues 7 <strong>and</strong> 8 will includeresearch papers <strong>and</strong> discussion <strong>and</strong> replies although they willbe reduced in length to make up for the extra pages used inearlier issues. Early in 2013 we will publish an issue ongeological CO 2 storage, edited by Alex Golab <strong>and</strong> Sue Golding,with an introduction by Peter Cook. Some <strong>of</strong> the papers fromthis volume are already available on the AJES.AWARDSFollowing from the June issue (TAG 163), the remainingcitation for the DI Groves Award for volume 58 <strong>and</strong> forthe AB Edwards Awards for volumes 57 <strong>and</strong> 58 arepresented here. The FL Still<strong>well</strong>, DI Groves <strong>and</strong> AB EdwardsAwards were presented at the GSA Awards Presentation atthe IGC in Brisbane in August.AB Edwards Medal winnersIn the June issue (TAG 163), we announced the AB Edwards Medalfor the best paper in AJES Vol. 57 (2010) — A guide formineral exploration through the regolith in the Yilgarn Craton,Western <strong>Australia</strong>, by Ravi An<strong>and</strong> <strong>and</strong> Charles Butt. We alsoannounced the winning paper in AJES Vol. 58 (2011) — A criticalreview <strong>of</strong> genesis modelling for the Hamersley BIF-hosted iron ores<strong>of</strong> Western <strong>Australia</strong>, by Richard Morris <strong>and</strong> Malcolm Kneebone. Inthis issue we publish the background to all the award winners <strong>and</strong>to An<strong>and</strong> <strong>and</strong> Butt’s paper.Ravi An<strong>and</strong>The Yilgarn Craton is one <strong>of</strong> the world’s principal mineral provinces,with considerable resources <strong>of</strong> gold, nickel, bauxite <strong>and</strong> iron ore, as<strong>well</strong> as lesser amounts <strong>of</strong> a wide range <strong>of</strong> other commodities.As such, it is a major target for exploration. However, as most <strong>of</strong> thecraton has been exposed to subaerial conditions since at least theLate Proterozoic, it has had a long history <strong>of</strong> weathering <strong>and</strong> erosionunder a wide variety <strong>of</strong> climatic conditions. This has resulted in awidespread <strong>and</strong> complex regolith cover. This diverse <strong>and</strong> extensiveregolith cover poses considerable difficulties for exploration — as<strong>well</strong> as opportunities in terms <strong>of</strong> different sample media <strong>and</strong> thedevelopment <strong>of</strong> resources within the regolith itself. The development<strong>of</strong> appropriate geochemical exploration procedures has been thesubject <strong>of</strong> considerable research by government, universities <strong>and</strong>industry for nearly 50 years. This guide attempts to summarise theresults <strong>of</strong> this research in a single, st<strong>and</strong>-alone document to assistmineral explorers. It provides a synthesis <strong>of</strong> the characteristics <strong>and</strong>evolution <strong>of</strong> the Yilgarn l<strong>and</strong>scape <strong>and</strong> advice on appropriate strategies<strong>and</strong> techniques for exploring through different types <strong>of</strong> cover,based on current knowledge <strong>and</strong> best practice. Because broadly similardeeply weathered regolith-dominated terrains occur elsewherein <strong>Australia</strong> <strong>and</strong>, indeed, in other continents, many <strong>of</strong> the principlesdiscussed here can be more widely applied.12 |TAG September 2012

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