Fission track ages of the Penglai basalt and their geologic significance

Tiancai Long

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Fission track ages of the Penglai basalt and their geologic significance

更新时间：2022-08-16

- Fission track ages of the Penglai basalt and their geologic significance
- Nuclear Techniques Vol. 11, Issue 9, (1988)
- 作者机构：
  
  天津地矿所
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- Published：1988-09
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Tiancai Long. Fission track ages of the Penglai basalt and their geologic significance[J]. Nuclear techniques, 1988, 11(9): 42-43.
DOI：

Tiancai Long. Fission track ages of the Penglai basalt and their geologic significance[J]. Nuclear techniques, 1988, 11(9): 42-43. DOI：

摘要

测定了两个蓬莱玄武岩样品的裂变径迹年龄。一个样品取自凝灰质沉积物中的磷灰石，裂变径迹年龄为6.79±0.14Ma。另一个样品取自玄武岩中的烘烤砾石（石英二长岩）中的磷灰石和锆石，它们的裂变径迹年龄分别为1.48±0.46Ma和1.68±0.12Ma。结果认为蓬莱玄武岩的形成时代应在中新世——下更新世之间，它的喷发延续了比较长的地质历史时期。

Abstract

The FT ages of two samples taken from the underlying tuff of basalt and the overlying baked conglomoeate

were dated. The first FT age of apatite is 6.79±0.14Ma and the second set of the FT ages of apatite and zircon are 1.48±0.46Ma and 1.68±0.12Ma respectively. Therefore

the late eruption of the basalt was considered to approximately corresponding to the lower boundary of the Quaternary Period

e. about 1.8 Ma BP. The FT dating in the Penglai Peninsula thus provided strong evidence to discuss the age of the lower boundary of Quaternary Period in China.

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Application of apatite fission track analysis to hydrocarbon resource evaluation of Linqing sedimentary basin

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