Sentences with phrase «volcanic ash deposited»

PURE - Redmond Bentonite Clay is the result of volcanic ash deposited in seawater 150 million years ago.

100 % Natural Bentonite Clay Redmond Bentonite Clay is the result of volcanic ash deposited in seawater 150 million years ago.

Bentonite clay comes from volcanic ash deposits and oceanic minerals, while diatomaceous earth is a powder made from fossilized phytoplankton.

Bentonite clay typically comes from volcanic ash deposits, while diatomaceous earth is a powder made from fossilized phytoplankton.

The crystals are derived from volcanic ash deposits erupted explosively at Axial Seamount, Juan de Fuca Ridge, in the northeast Pacific Ocean.

Not exact matches

The entire cliff would have been deposited very quickly from a fast - moving current of hot gas and ash (a pyroclastic density current), and the extreme temperatures (900-1000 °C) caused the ash to weld to the ground and effectively enameled the area in dense volcanic glass.

«Ash from dinosaur - era volcanoes linked with shale oil, gas: Shale oil, gas deposits accompany ash layers from thousands of volcanic eruptions.»

The volume of ash deposited, and the estimated height of the eruption plume (43 kilometers above sea level) put the eruption's magnitude at a minimum of 7 on the volcanic explosivity index (which has a scale of 1 to 8)-- making it one of the largest known in the Holocene.

The pink areas are new deposits of volcanic ash; the orange plug is older material.

Those glimpses of the surface revealed deposits of pyroclastic ash — the telltale signs of volcanic explosions — peppering the planet's surface.

The most explosive volcanic event of the Quaternary was the eruption of Mt. Toba, Sumatra, 75,000 y ago, which produced voluminous ash deposits found across much of the Indian Ocean, Indian Peninsula, and South China Sea.

Geologically, Redmond Clay is volcanic ash that was deposited in sea water approximately 150 million years ago.

Bentonite clay is sedimentary clay composed of weathered and aged volcanic ash, the most active deposits of which are in Wyoming and Montana.

I've sometimes thought that global cataclysms like the largest volcanic eruptions would disrupt the glacial records by many years, like Oruanui eruption c. 26500bp, as these would induce unrecorded behavior in weather and other things, f.e. the huge ash deposits might decrease the albedo so much a local melting event happens.