That Fig 3 AP0013 close-up image is pretty informative, you can see how a lot of the high-grade Li surface rock chip samples are distributed in the centre of the Pegmatite unit, but going outwards towards the margins of the Pegmatites the grade does drop off in that particular area. Its only one area, but a good demonstration that not all Pegmatites will contain economic Li mineralization and that there will be preferential zonation and distribution of the Li minerals in certain parts of the Pegmatites.
It is early days yet but I think people should be a little conservative and cautious as to how extensive the enriched Li portions of the Pegmatites will be, compared with the total volume of Pegmatites. There seems to be no shortage of Pegmatite hosts but only a certain proportion of these Pegmatite bodies/hosts will have the geochemistry and the mineralogy to be high-grade Li zones of interest.
In the other maps presented which show AP006 and AP008 the sampling is not as detailed and intense, but there seems to be more of a suggestion of linear zones of higher Li which would not be surprising, with a series of tabular shallow dipping highly fractionated Pegmatite layers or bodies.
