- Plutonicigneousrockhavingvisiblycrystallinetexture.Anigneousrockconsistingchieflyofpyroxenes.Adark,fine-grainedigneousrock;diabase.Alight-coloredigneousrockconsistingessentiallyofalkalifeldspar.Adarkigneousporphyryembeddedwithfeldsparcrystals.rarepla...
- 11447
- 1、Plutonicigneousrockhavingvisiblycrystallinetexture.2、Anigneousrockconsistingchieflyofpyroxenes.3、Adark,fine-grainedigneousrock;diabase.4、Alight-coloredigneousrockconsistingessentiallyofalkalifeldspar.5、Aconspicuous,usuallylarge,crystalembedded...
- 19834
- largemassofintrusiveigneousrockbelievedtohavesolidifieddeepwithintheearth.Achangewithinanintrusiveigneousrockcausedbytheassimilationofportionsofthesurroundingrock....
- 25519