Science, Volume 310, Issues 5751-5756John Michels (Journalist) 2005 |
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Results 1-3 of 4
Page 1317
... ppbv ( parts per billion by volume ) during the past 650,000 years . Before 420,000 years ago , when interglacials were cooler , maximum CH4 concentrations were only about 600 ppbv , similar to lower Holocene values . In contrast , the ...
... ppbv ( parts per billion by volume ) during the past 650,000 years . Before 420,000 years ago , when interglacials were cooler , maximum CH4 concentrations were only about 600 ppbv , similar to lower Holocene values . In contrast , the ...
Page 1319
... ppbv , are similar to those in records published earlier ( 13 , 14 ) . Because the CH1 and N2O mea- surements were ... ppbv ( mean over 7 ky ) , comparable to the low CH1 concen- tration during MIS 6 and MIS 2 in the Dome C record ...
... ppbv , are similar to those in records published earlier ( 13 , 14 ) . Because the CH1 and N2O mea- surements were ... ppbv ( mean over 7 ky ) , comparable to the low CH1 concen- tration during MIS 6 and MIS 2 in the Dome C record ...
Page 1320
... ppbv occurred , similar to events marked by stars in Fig . 2. The average return time of the events during MIS 13 is approximately 20 ky , and they last for 5 to 10 ky . The origin of these fluctuations is probably related to the ...
... ppbv occurred , similar to events marked by stars in Fig . 2. The average return time of the events during MIS 13 is approximately 20 ky , and they last for 5 to 10 ky . The origin of these fluctuations is probably related to the ...
Contents
SPECIAL ISSUE | 1083 |
EDITORIAL by Jim Austin and Donald Kennedy | 1089 |
CONTACT SCIENCE | 1096 |
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