Edwin Allison collected samples throughout the Pacific concentrating on foraminiferal studies during the 1960s. During the same decade, Albert Engel dredged and collected extensive volcanic and ...

Some other examples of igneous intrusions in Scotland can be found at Dumbarton Rock (a volcanic plug in Dumbarton) and Loudoun Hill (a volcanic plug in Ayrshire). Learn more about some of the ...

Highest rock grab samples over the mapped volcanic rocks near the valley floor interpreted to be sub-cropping exposure of the ...

They obtained a 30-centimetre rock core from 15 metres below the surface of the Bushveld Igneous Complex in north-eastern South Africa, a vast formation of volcanic rock that formed more than 2 ...

One final type of volcanic system is the Large Igneous Province, a massive outpouring of lava made from rocks called basalts. These eruptions can flood millions of square miles with lava that's ...

Microphotograph of amphibole (brown) and plagioclase (grey-white) minerals present in an adakitic rock from the western Trans-Mexican ... The variable composition of its igneous products and volcanic ...