ScienceJohn Michels (Journalist) 1958 |
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Стр. 131
... Usselo layers . The fol- lowing five samples belong to one series of charcoal samples , found in the Usselo layer , from different localities in the Netherlands . To this series may be added samples Gro - 498 , 603 , and 607 in Table 3 ...
... Usselo layers . The fol- lowing five samples belong to one series of charcoal samples , found in the Usselo layer , from different localities in the Netherlands . To this series may be added samples Gro - 498 , 603 , and 607 in Table 3 ...
Стр. 132
... Usselo layer ( mean value , 10,800 yr ) . If we take into account a possible tree age of 100 to 200 yr and some 50 yr for the time of formation of 10 cm of gyttja after the tuff sedimentation , the differ- ence does not seem to be large ...
... Usselo layer ( mean value , 10,800 yr ) . If we take into account a possible tree age of 100 to 200 yr and some 50 yr for the time of formation of 10 cm of gyttja after the tuff sedimentation , the differ- ence does not seem to be large ...
Стр. 134
... Usselo horizon . Collected and submitted by A. Bohmers . Horn - Haelen ( province of Limburg ) . Gro - 497 Charcoal from Usselo horizon with arti- Gro - 498 facts from the Tjonger culture at Horn- Haelen . Collected by Brother A. Wou ...
... Usselo horizon . Collected and submitted by A. Bohmers . Horn - Haelen ( province of Limburg ) . Gro - 497 Charcoal from Usselo horizon with arti- Gro - 498 facts from the Tjonger culture at Horn- Haelen . Collected by Brother A. Wou ...
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Hawaii book review of Flora Hawaiiensis | 11 |
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