Identification of a fossil wood specimen in the Red Sandstone Group of southwestern Tanzania: Stratigraphical and tectonic implications

被引:25
作者
Damblon, F [1 ]
Gerrienne, P [1 ]
D'Outrelepont, H [1 ]
Delvaux, D [1 ]
Beeckman, H [1 ]
Back, S [1 ]
机构
[1] Royal Belgian Inst Nat Sci Micropaleontol & Palae, B-1000 Brussels, Belgium
来源
JOURNAL OF AFRICAN EARTH SCIENCES | 1998年 / 26卷 / 03期
关键词
D O I
10.1016/S0899-5362(98)00022-0
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
A piece of silicified fossil wood was found in the middle part of the Red Sandstone Group of the Songwe-Kiwira area, north of Lake Malawi (Nyasa) in the Western Branch of the East African Rift System. It is identified as Pahudioxylon Chowdhury et al., 1960. Until now, Pahudioxylon has been strictly restricted to the Cenozoic. The occurrence of Pahudioxylon in the Red Beds Formation supports a Cenozoic (Miocene) age rather than a Mesozoic age for this formation. Comparison with a collection of modern species gives information about the environmental conditions of deposition of the Red Sandstone Group. A discussion follows on the significance of the Red Sandstone Group during the Rukwa-Malawi Rift development. (C) 1998 Elsevier Science Limited.
引用
收藏
页码:387 / 396
页数:10
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