These colossal events, which may have persisted intermittently for many thousands of years, aru # illed " flood basalts ."
42.
Analysis of the chemical composition of the lavas gives important clues about the origin and dynamics of the flood basalt volcanism.
43.
The Mesoproterozoic Mackenzie Large Igneous Province in Canada contains the maria on the Moon are additional, even more extensive, flood basalts.
44.
The resulting rift valley, known as the Newark Basin, was filled with alternating layers of red bed sediment and flood basalts.
45.
It is a wide flood basalt plateau between the Cascade Range and the Rocky Mountains, cut through by the Columbia River.
46.
However, due to a lack of data on the time required to produce flood basalts, the climatic impact is difficult to quantify.
47.
The largest syncline in the basin, the Watchung syncline, contains the greater portion of the Watchung flood basalts as they appear today.
48.
Included in the Mackenzie Large Igneous Province are the large Coppermine River flood basalt sequence and the massive northwesterly trending Mackenzie dike swarm.
49.
Around the same time of both the Permian-Triassic and the dinosaur extinctions, there also were massive outflows of a lava called flood basalt.
50.
Now known as the Columbia Plateau, this great lava bed of flood basalt covers much of Oregon, Washington and even parts of Idaho.
