| 释义 |
wacke
wacke (ˈwækə) n (Geological Science) obsolete any of various soft earthy rocks that resemble or are derived from basaltic rocks[C18: from German: rock, gravel, basalt]wacke
wacke[′wak·ə] (petrology) Sandstone composed of a mixture of angular and unsorted or poorly sorted fragments of minerals and rocks and an abundant matrix of clay and fine silt. |