lamprophyre उदाहरण वाक्य
उदाहरण वाक्य
- Lamprophyre dykes and sheets have intruded at Hibbs Bay and nearby on the south west coast.
- Hornblende lamprophyre ( spessarites ) contain plagioclase, coloured light brown and are oriented north-south.
- The sapphire bearing Yogo dike is a dark gray to green intrusive rock known as a lamprophyre.
- The dikes or sills consist either of phonolite, tinguaite, lamprophyre micromalignite, lamprophyre micromelteigite, or carbonatite.
- The dikes or sills consist either of phonolite, tinguaite, lamprophyre micromalignite, lamprophyre micromelteigite, or carbonatite.
- Ultrapotassic lamprophyre dikes can also be found along the basin flanks, which are highly unusual in the Rocky Mountain region.
- Radiometric dates of 1883-1870 Ma are reported for mafic, ultramafic, carbonatite and lamprophyre intrusions within the Trough.
- Volcanic rocks which have been observed include absarokite, andesite, basaltic andesite, hornblende-lamprophyre, minette and spessartite.
- Ultrapotassic, ultramafic igneous rocks such as lamprophyre, lamproite and kimberlite are known to have reached the surface of the Earth.
- Lamprophyre erratics that originated from the bed of the North Sea demonstrate the influence of ice action on the geomorphology of the islands.