Noun:

डालराइट,

dolerite's Usage Examples:

It forms part of an intrusive mass which, on the south and west cliffs of the island, has a columnar arrangement and is traversed by dykes of dolerite, most of which run in a northwest direction.

Immense -sheets of dolerite, gabbro, or allied basic rocks indicate eruptive materials intruded as sills or poured out as lavas contemporaneously with the sedimentary formations among which they lie.

The dolerite of Fair Head sends off sheets along the bedding-planes of these carboniferous strata.

Fair Head is formed of intrusive dolerite, presenting a superb columnar seaward face.

Volcanic necks may be recognized at Carrick-a-rede, in the intrusive mass of dolerite at Slemish, at Carnmoney near Belfast, and a few other points.

At Portrush, the Lower Lias is seen on the shore, crowded with ammonites, but silicified and metamorphosed by invading dolerite.

serpentine into talc-schist, dolerite into hornblende-schist) by the same agencies.

Volcanic rocks, locally called "Toadstone," are represented in the limestones by intrusive sills and flows of dolerite and by necks of agglomerate, notably near Tideswell, Millersdale and Matlock.

Magnetite is a mineral of wide distribution, occurring as grains in many massive and volcanic rocks, like granite, diorite and dolerite.

These are modified forms of basic rocks such as basalt, dolerite and diabase.