Geology√

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Geology√

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Geology√

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Geology√

1974 Archival description results for Geology√

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Rainbow over Gullfoss waterfall of Hvita River

Gullfoss waterfall of Hvita River showing a rainbow; total falls are 31 m high. There are two falls one above the other. Each falls over the edge of a basalt flow inter-bedded with clastic rocks of less resistance. The staightness of the falls indicates control by tectonic fractures, but no faulting has taken place along them. August 9, 1960.

Radiocarbon ages of post-glacial materials

Radiocarbon ages of post-glacial materials. Dates are in years before present. Elevations are in feet. Elevations are followed by (+) where the sealevel to which the date applies was significantly higher than the sample site, and by (-) in the case of archaeological samples where the sealevel may have been lower than the site (Raasch et al., 1961, v. 1, p. 416).

Results 496 to 510 of 1974

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