like to hear from any geos on this thread, page-5

http://www.asx.com.au/asx/statistics/getAnnPdf('/asx/statistics/showAnnouncementPDF.do?idsID=',%20'00780145',%20'Announcement');return%20false;

have a look at figure 4 on page six of the link: coal seam sequence in an operating Waterberg coalfield

nowhere near as deep as the one across the river