This post followings on as PART 3 from Virginia Steen-McIntyre's post on the The Pleistocene Coalition website.
But first, who was Fryxell (pronounced Frick-SELL)?
Roald Hilding Fryxell (b.1934 – d.1974) American Educator, Geologist and Archaeologist.
Eagles Rest Peak, Grand Tetons, June 28, 1953: A. E. Creswell, left, and Roald Fryxell
Fryxell was Professor of Geochronology at Washington State University. He was noted for his interdisciplinary work in Geoarchaeology. During the 1960s Fryxell worked with two members of the U.S. Geological Survey under a National Science Foundation grant to study the Hueyatlaco Archeological Site.
In 1968 Fryxell was a co-principal investigator with Richard Daugherty (WSU) during the unearthing of the Marmes Rockshelter from the floodplain of the Palouse River near the confluence of the Palouse and Snake Rivers in southeastern Washington. The site was found to contain some of the oldest human remains in the western hemisphere at 12,000 years of age.
Fryxell (above right), with Neil Armstrong (left), at a Space Symposium in 1972.
In 1971 he was selected to be part of the team of geologists in Houston who examined rocks brought back from the Moon during the Apollo program. He was also the designer of the apparatus used for collecting core samples of the moon's surface. The lunar crater Fryxell is named after him. Fryxell was killed on May 18, 1974, in a car accident age 40, when his car went off the road near Othello, Washington.
MONOLITH EXCAVATION WORK
Dr. Fryxell (above) preparing a soil monolith at the Marmes Rockshelter site, October 1968.
Source: The Marmes Rockshelter Site, Museum of Anthropology, Washington State University.
Samples of Roald Fryxell's Strata Monolith excavation work and excavation floor work in Washington state during the 1960's.
Fryxell and monolith preparation
Fryxell and monolith wrapping
Fryxell and frost cracks
Fryxell and Marmes model
TRENCHES AT HUEYATLACO
Irwin-Williams' trench at Hueyatlaco where it intersects, 1973
Source