| 土耳其Sinop盆地晚白垩世大洋红层中的放射虫 |
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| 引用本文： | 罗辉.土耳其Sinop盆地晚白垩世大洋红层中的放射虫[J].地学前缘,2005,12(2):45-50. |
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| 作者姓名： | 罗辉 |
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| 作者单位： | 现代古生物学和地层学国家重点实验室,中国科学院,南京地质古生物研究所,江苏,南京,210008 |
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| 基金项目： | 科技部"攀登计划";国家重点实验室基金;国家高技术研究发展计划(863计划) |
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| 摘 要： | 在土耳其北部Sinop盆地Kayadibi剖面上发育了一套以红色灰岩及红色硅质岩为特征的,被称之为Kapanboˇgazi组的远洋或半远洋环境下的海相红色沉积。其中的硅质岩里产丰富且保存完好的放射虫化石。其放射虫组合以Crucella cachensis, Alievum superbum?, Patellula verteoensis, Patellula ecliptica, Dictyo mitra multicostata, Pseudodictyomitra pseudomacrocephala, Halesium triacanthum, Pessagnobrachia fabia nii, Pseudoaulophacus putahensis 和Paronaella communis 等属种同时出现为特征,可以与北美、西特提斯及俄罗斯等地建立的Alievum superbum 放射虫带对比,时代为土仑期。
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| 关 键 词： | 放射虫 大洋红层 晚白垩世 土仑期 土耳其 |
| 文章编号： | 1005-2321(2005)02-0045-06 |
| 修稿时间： | 2004年12月20 |
Radiolarians from Upper Cretaceous oceanic red beds in Sinop basin, northern Turkey |
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| LUO Hui.Radiolarians from Upper Cretaceous oceanic red beds in Sinop basin, northern Turkey[J].Earth Science Frontiers,2005,12(2):45-50. |
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| Authors: | LUO Hui |
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| Abstract: | Well-preserved radiolarians were found in the red chert samples taken from the upper Cretaceous oceanic redbeds of the Kapanbogazi Formation, near Kayadibi village, south Sinop basin, Turkey. This radiolarian assemblage is represented by: Crucella cachensis, Alievum superbum?, Patellula verteoensis, Patellula ecliptica, Stichomitra mediocris, Stichomitra stocki, Dictyomitra multicostata, Pseudodictyomitra pseudomacrocephala, Diacanthocapsa ovoidea, Halesium triacanthum, Pessagnobrachia fabianii, Cavaspongiae cf. uganea, and Pseudoaulophacus putahensis. Based on the co-occurrence of the typical Turonian species such as Crucella cachensis, Alievum superbum?, Pseudoaulophacus putahensis, Patellula ecliptica, Dictyomitra multicostata, etc., this fauna is correlative to the Alievum superbum zone in western Tethys, north American and Crimea, Russia as established by O'Dogherty (1994), Pessagno (1976, 1977) and Bragina(1997). This evidence confirms a Turonian age. These new radiolarian data provide a precision biostratigraphic age constraint on the timing of the redbeds in the Sinop basin. |
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| Keywords: | radiolarian redbed upper Cretaceous Turonian Turkey |
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