Laserfiche WebLink
• The sites for the four exploratory core holes were picked to maximize <br />the information on the deeper coal seams. These locations are spotted on <br />the attached mine map.* All four holes were continuously cored using water <br />as circulating fluid. <br />Each of these wells established a static water level of from 14 to 20 <br />feet below the collar as soon as drilling passed that depth. This static <br />level did not change during drilling. In no instance vas there a floe of <br />water to surface (collar) during or after drilling operations, although each <br />hole had gas (methane) flows which broke through the water column to surface. <br />Based on these results we can conclude with a high degree of confidence that <br />there are no artisian water flows in the normal Mesaverde section below the <br />'E' seam. <br />• As stated earlier, each hole was continuously cored from the base of the <br />'E' seam to total depth, i. e. a few feet into the Rollins Sand on WSC p5, ~7, <br />and X18, and to the bottom of the Lower 'B' seam on WSC u6. The sedimentary <br />sequences between coal seams in each hole reflected a depositional environment <br />of from lower deltaic to marginal marine. Glauconitic sands gave evidence of <br />minor transgression - regression activity. The sedimentary rocks present were <br />a typical inter-coal sequence of sand, siltstone and shale with some mudstone <br />interlayers and inclusions, and, rarely, very thin limestones. These clastic <br />rocks were invariably fine grained. clastic sizes greater than fine sand were <br />not encountered. The sandstones generally were titely cemented with calcareous, <br />argillaceous or organic cements. <br />• *[Hawks Nest Mine Map - small scale with WSC 95, 96, 07 and 08, and new test hole <br />spotted.] <br />