Laserfiche WebLink
The recently completed 1998-99 drilling shows the unconsolidated materials <br />flanking Elk Creek to be much thicker and more complex than previously <br />• considered. The upper most unit is composed of 30-80 feet of interbedded clay <br />and sandstone boulders. These materials are derived mainly from landslides. <br />The lower unit is composed of 0~0 feet of unconsolidated sandstone and basalt <br />boulders with very little matrix binder. Though not present in all locations, this <br />lower unit is very mobile without the clay and silt binders of the overlying unit. <br />A structure map of the D-Seam top has been updated for the area between <br />eastings 1,436,000 and 1,442,500 on the state plane coordinate system. This <br />map also covers the area from the revised D-Seam bum line to northing 411,000 <br />on the same coordinate system. Efforts were made to incorporate all of the <br />recent geo-technical drilling data with the prior drill hole data currently on file with <br />Oxbow Mining Company. The original of this map was sent to Oxbow Mine and <br />a copy of it is inGuded with this report in Section 3. <br />RECOMENDATIONS <br />Oxbow should consider additional core drilling to the west and northwest of Elk <br />Creek to gather fresh core information on the D-seam. Knowledge of the D- <br />seam parting locations would be of benefit in selective mining. <br />More bum line information between Bear Creek and the west ridge bounding Elk <br />~..~ Creek would be beneficial in the planning of the developmental mine entries to <br />the south of the planned longwall panels. <br />More burn line drilling between Bear Creek and Hut~bard Creek is also <br />recommended for the same reasons. <br />Glenn E. Miller <br />Consulting Geologist <br />5-15-99 <br />`~ <br />Page 3 of 3 <br />