globalchange  > 气候减缓与适应
DOI: 10.1002/2014GL059899
论文题名:
An astronomical age for the Bishop Tuff and concordance with radioisotopic dates
作者: Zeeden C.; Rivera T.A.; Storey M.
刊名: Geophysical Research Letters
ISSN: 0094-10060
EISSN: 1944-9791
出版年: 2014
卷: 41, 期:10
起始页码: 3478
结束页码: 3484
语种: 英语
英文关键词: Astronomical age for the Bishop Tuff ; intercalibration of orbital and radio-isotopic ages ; Single crystal 40Ar/39Ar fusion age for the Bishop Tuff
Scopus关键词: Lead ; Sedimentology ; Silicate minerals ; Single crystals ; Stratigraphy ; Age modeling ; Astronomical age for the Bishop Tuff ; Dating techniques ; Geomagnetic polarity reversal ; Global correlation ; High-precision ; Intercalibration ; Sedimentary records ; Geomagnetism ; age determination ; argon isotope ; argon-argon dating ; astronomy ; calibration ; magnetic reversal ; Quaternary ; radiocarbon dating ; stratigraphy ; synchrony ; Bishop Tuff ; California ; United States
英文摘要: The Bishop Tuff forms a key stratigraphic horizon for synchronization of Quaternary sedimentary records in North America. The unit stratigraphically overlies the Matuyama-Brunhes geomagnetic polarity reversal by several thousand years; high-precision dating of this tuff may be valuable for regional and global correlation of records. The Quaternary time scale is anchored by 40Ar/39Ar ages on lava flows and ash layers where available, with stage boundaries and geomagnetic reversals including astronomically tuned records. However, astronomical dating has not yet validated the high-precision 238U/206Pb zircon and 40Ar/39Ar sanidine ages of the Bishop Tuff. We have identified the Bishop Tuff within the marine sedimentary record and derived an astronomical age of 0.765±0.008 Ma by correlation to the LR04 δ18O global benthic stack and its age model. This age is consistent with Bishop Tuff radioisotopic ages, including new single crystal 40Ar/39Ar sanidine fusion analyses presented here, which demonstrates that concordance through multiple dating techniques is achievable within the Quaternary. © 2014. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84901383157&doi=10.1002%2f2014GL059899&partnerID=40&md5=f2974041e31c70ecf19f517457b8405d
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7324
Appears in Collections:气候减缓与适应

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作者单位: Faculty of Geosciences, Utrecht University, Utrecht, Netherlands

Recommended Citation:
Zeeden C.,Rivera T.A.,Storey M.. An astronomical age for the Bishop Tuff and concordance with radioisotopic dates[J]. Geophysical Research Letters,2014-01-01,41(10).
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