Geology√

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Geology√

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Geology√

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Geology√

1974 Archival description results for Geology√

1974 results directly related Exclude narrower terms

Geology - Research - Marilyn Truscott

Marilyn Truscott of Glidden, Saskatchewan, a PhD candidate in geological sciences at the University of Saskatchewan, makes use of an electron probe x-ray microanalyzer. Mrs. Truscott uses the machine to analyze samples of volcanic rock from the Sweetgrass Hills in Montana. She is obtaining information that will help provide a more complete picture of the geological history of the Western Plains.

Geological map of the Myvatn area, Iceland

Geological map of the Myvatn area, Iceland. The bedrock outside the postglacial lava flows is Pleistocene and covered by till and glaciofluvial sediments. Small open rings: Lava of the Ludent cycle (greater than 6000 years B.P.). Big open rings: Older Laxa lava. Striated: Lava flows of the Hverfjall cycle (2500-1000 years B.P.). Black: Lava flows 1725-1729. Arabic numerals: Thickness of the Hverfjall tephra in cm.

Results 1081 to 1095 of 1974