b13 De Geer’s test of the Great Ice Age
Page 093
  
1 T or F:   The Ice Age remained an hypothesis during Agassiz’s lifetime.
2 T or F:   Proglacial lakes are fed directly by the meltwater of glaciers.
3 T or F:   Rock flour accumulates as varved clays.
4 T or F:   De Geer studied the retreat of the Ice Age ice sheet in North America.
5 T or F:   As fresh water cools  from 4ºC it expands.

Innocuous 093-01-01
Desuetude 093-02-01
Proglacial lake 093-03-01 093-03-02
Rock flour 093-04-01
Varved clays 093-05-01 093-05-02 093-05-03
De Geer 093-06-01 093-06-02 093-06-03
Lake turnover,. 4 ºC 093-07-01 093-07-02

Page 094
 
1 T or F:  For 20 years De Geer’s varve counting method to know of the retreat of the ice sheet in America at the end of the Ice Age seemed to be wrong.
2 T or F:  Varved chronology is central to arguments for the Ice Age in Flint's Glacial and Quaternary Geology, 1957, 1971.
3 T or F:  AMS has reestablished the validity of varve chronology.

Lidén, Gerhard & Ebba Hult De Geer, Antevs. 094-01-01
Flint 094-02-01
Accelerator mass spectrometry 094-03-01