ultramafic

The mountain is made from ultramafic rock of unknown age.

It is known from the ultramafic hills in the Ranau district.

Diamond core from the ultramafic sequence has been cut and results will be released when received.

All four conductors are interpreted to be associated with ultramafic rocks.

Chesterite is usually found in thin sheets within ultramafic rocks.

In the third hour you will receive a thin section of an unknown ultramafic rock for your independent examination.

It is also found as shears in ultramafic rocks.

California contains approximately 2300 square miles of ultramafic rocks.

Ultramafic rocks such as dunites can also be found.

Drilling suggests a buried ultramafic unit striking over at least three kilometres.

Peridotite is ultramafic, as the rock contains less than 45% silica.

During this time the ultramafic part of the complex has been mapped in great detail using aerial photographs.

This is due to the ultramafic rock - peridotite - which makes up the Tablelands.

The important known nickel deposits are in the ultramafic rocks of the lower cycle, around 2700 Ma old.

These deposits are found in mafic and ultramafic rocks.

These rocks range from ultramafic, mafic, and felsic in composition.

The ridge was of basic (basalt) and ultramafic material.

No mafic or ultramafic units similar to the one at Shark were intersected.

Heazlewoodite is known from few ultramafic intrusions within terrestrial rocks.

At the surface, ultramafic tuffs may occur in maar deposits.

This has left behind several ultramafic complexes bounded with faults from the older rocks.

The most dense sima has less silica and forms ultramafic rocks.

A number of ultramafic bodies have been deeply weathered to form nickel laterites.

It likely grows in forest on ultramafic soils.

Within the region, ultramafic rocks, the original source of the cobalt and nickel, are confined to the project area.