@article{oai:nipr.repo.nii.ac.jp:00001002,
 author = {Kyle, Philip R. and Sutter, John F. and Treves, Samuel B.},
 journal = {Memoirs of National Institute of Polar Research. Special issue},
 month = {Sep},
 note = {P(論文), Four conventional K/Ar ages were determined on two samples from each of DVDP drillholes 1 and 2. Apparent ages (calculated using the new 1977 calibration constants) range from 1.21±0.11 m.y. to 1.34±0.23 m.y. for samples from 25.52m and 148.81m depth respectively in DVDP 1. Age determinations on DVDP 2 are 1.16±0.03 m.y. and 1.32±0.16 m.y. for samples from depths of 62.38m and 173.93m respectively. The ages are statistically not significantly different from one another; and show the flows and pyroclastic units in DVDP 1 and 2 were erupted about 1.26 m.y. ago over a short period of time, probably less than 0.3 m.y.},
 pages = {214--219},
 title = {K/Ar Age Determinations on Drill Core from DVDP Holes 1 and 2},
 volume = {13},
 year = {1979}
}