Net coal thickness in the southern Piceance Basin, Colorado (ps*thkg)

These are shapefiles and ARC/INFO polygon coverages showing
the isopachs of total net coal in beds greater than or equal
to 1 ft thick for the Cameo/Fairfield coal group and for
the Cameo/Wheeler, South Canyon, and Coal Ridge coal zones,
southern Piceance Basin coal assessment area. Also included
are isopachs of total net coal in beds 1-2.3 ft thick,
2.3-3.5, 3.5-7.0, and 7.0-14, and greater than 14 ft thick
in the Cameo/Wheeler coal zone.

本数据集包含两类适配皮森斯盆地南部煤炭评估区的空间数据：其一为形状文件（Shapefile）与ARC/INFO多边形覆盖数据集（ARC/INFO polygon coverages）格式的、针对卡梅奥/费尔菲尔德煤组以及卡梅奥/惠勒、南峡谷和科里奇煤带中厚度≥1英尺煤层的总净煤量等厚线图（isopachs）；其二为仅针对卡梅奥/惠勒煤带的分厚度区间总净煤量等厚线图，对应厚度区间分别为1~2.3英尺、2.3~3.5英尺、3.5~7.0英尺、7.0~14英尺以及大于14英尺的煤层。