Abstract The Mailaka lava succession (central-western Madagascar) forms part of the Madagascar large igneous province and is characterized by basaltic to picritic basalt lava flows and minor evolved ...

Some 12 million years ago, land near the Idaho border cracked open and out poured the last in a series of colossal eruptions that sent layers of lava rolling across Central Washington. Today, the ...

Strata of the Neoproterozoic Shaler Group on Victoria Island in NW Canada reveal stratigraphic and sedimentological features that are interpreted to be a response to differential crustal uplift ...

The geology of Washington state varies wildly from region to region, belying the great medley of events -- ancient and more recent, catastrophic and systematic-- that formed it. And in no part of the ...

Making and shaping the Columbia Basin. Columbia River basalt lava flows ; Inside a basalt flow ; Pillow lavas ; What good is Columbia River basalt? ; Lewis and Clark meet Columbia River basalt ; ...

The primary structural controls on the gold mineralization at the F2 Gold Deposit are the well-established dextral Riedel vein system of quartz-actinolite veins (the "Riedel vein system") that occur ...

The ancient strength of the lunar magnetic field recorded by the Chang'e-6 basalt clasts reveal the existence of a relatively active lunar dynamo at 2.8 Ga. The evolution of the lunar dynamo is ...

From a 65-million-year-old fossil of a frog to a 5carat pure diamond and from a giant natural pearl from Basra to a recently formed basalt rock from Barren Island, the only living volcano in India, ...

Layers of volcanic rock in eastern Oregon, the Willamette Valley and the Columbia Basin have created fertile soil for farming and ranching, but in the future it could provide fruitful ground for a ...

Layers of volcanic rock in eastern Oregon, the Willamette Valley and the Columbia Basin have created fertile soil for farming and ranching, but in the future it could provide fruitful ground for a ...