Nannoplankton zonation and the Palaeocene/Eocene boundary beds of NW Europe: an indirect correlation by means of volcanic ash layers
Nannoplankton zonation and the Palaeocene/Eocene boundary beds of NW Europe: an indirect correlation by means of volcanic ash layers
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微浮游生物分区和欧洲西北部古新世/始新世边界床：通过火山灰层的间接相关性
DOI：
10.1144/gsjgs.141.6.0993
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发表时间：
1984
影响因子：
2.7
通讯作者：
R. Knox
中科院分区：
文献类型：
--
作者：
R. Knox
通过与北海盆地早第三纪古近纪火山灰层对比表明，超微浮游生物带NP10的底部与北海地区Sele建造的底部、丹麦火山灰系列的底部、德国含火山灰的Untereozän 1和巴黎盆地的Sparnacian相接近，与伦敦盆地Woolwich-Reding底层的顶部相近。如果按照现在的惯例，将古新世/始新世界线置于NP9/NP10界线，则上述单位将构成各自国家始新世的基本单位。大规模火山碎屑活动的停止发生在NP10带的中段。
Correlation of early Palaeogene ash layers in DSDP Hole 550 (Leg 80, Goban Spur) with those of the North Sea Basin indicates that the base of nannoplankton zone NP10 approximates the base of the Sele Formation of the North Sea area, the bases of the Danish ‘ash-series’, the German ash-bearing Untereozän 1, and the Paris Basin Sparnacian, and the top of the Woolwich & Reading Bottom Bed of the London Basin. If, as is now common practice, the Palaeocene/Eocene boundary is placed at the NP9/NP10 boundary, then the units listed above would constitute the basal units of the Eocene in their respective countries. The cessation of large-scale pyroclastic activity took place at about the middle of the Zone NP10 interval.