当前位置: X-MOL 学术Tectonics › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
The Rif Chain (Northern Morocco) in the Late Tortonian‐Early Messinian Tectonics of the Western Mediterranean Orogenic Belt: Evidence From the Tanger‐Al Manzla Wedge‐Top Basin
Tectonics ( IF 3.3 ) Pub Date : 2020-09-08 , DOI: 10.1029/2020tc006164
A. Abbassi 1 , P. Cipollari 1 , M. N. Zaghloul 2 , D. Cosentino 1
Affiliation  

During the Neogene, the Western Mediterranean subduction‐related orogen developed under differing modes and senses of subduction, resulting in the formation of the Apennines, Maghrebides, Rif, and Betics. In this work, we present the Neogene kinematic evolution of the Rif, based on literature data and new results from structural‐stratigraphic analyses and biostratigraphic investigations carried out in the External Zone of the Rif. We analyzed three stratigraphic sections: Dar Zhirou, Saf Lahmame, and Seguedla. The results of these analyses allow us to reconstruct a wide Tortonian‐Messinian wedge‐top basin in the Tanger‐Al Manzla area, when the leading edge of the Rif was at the frontal thrust of the Prerif. The presence of this wedge‐top basin points to a Tortonian‐Messinian compressional deformation that affected a wide area of the Rif, including the Prerif, Mesorif, and Intrarif. The late Miocene compressional deformation that affected the Mesorif and Intrarif occurred as out‐of‐sequence thrusting, due to renewed compressional tectonics in the internal zone of the chain triggered by the collision of the Rif accretionary wedge with the North African Margin. In the Neogene evolution of the Western Mediterranean subduction‐related orogen, the late Miocene was a major pulse in the interplay between African and European plates, as evidenced by the increase in migration rates of some segments of the circum‐Mediterranean fold‐and‐thrust belt, the out‐of‐sequence thrusting in the Rif, as well as the occurrence of late Miocene imbricate thrust structures in oceanic fracture zones of the African Plate (Central Atlantic Ocean).

中文翻译:

地中海造山带的晚托尔-早墨西尼构造中的里夫链(摩洛哥北部):Tanger-Al Manzla楔形顶盆地的证据

在新近纪期间,与地中海俯冲有关的造山带以不同的俯冲方式和俯冲感发展,导致形成了亚平宁山脉,马格里比德山脉,里夫山脉和贝蒂奇山脉。在这项工作中,我们基于文献数据和在Rif外围区域进行的结构地层分析和生物地层研究的新结果,介绍了Rif的新近纪运动学演化。我们分析了三个地层剖面:Dar Zhirou,Saf Lahmame和Seguedla。这些分析的结果使我们能够在Rif的前缘处于Prerif的前推力时,在Tanger-Al Manzla地区重建一个宽阔的Tortonian-Messinian楔顶盆地。这个楔顶盆地的存在表明了影响整个Rif区域的Tortonian-Messinian压缩变形,包括Prerif,Mesorif和Intrarif。Rif增生楔与北非边缘的碰撞触发了链条内部区域的新的压缩构造,从而影响了Mesorif和Intrarif的中新世晚期压缩变形发生在无序冲断中。在西地中海俯冲相关造山带的新近纪演化中,中新世晚期是非洲和欧洲板块相互作用的主要推动力,这一点可以通过环地中海-地中海褶皱-冲断的某些部分的迁移率增加来证明。断裂带,Rif中的逆冲冲断,以及在非洲板块(中大西洋)的海洋断裂带中新世晚期的胶状冲断构造的发生。Rif增生楔与北非边缘的碰撞触发了链条内部区域的新的压缩构造,从而影响了Mesorif和Intrarif的中新世晚期压缩变形发生在无序冲断中。在西地中海俯冲相关造山带的新近纪演化中,中新世晚期是非洲和欧洲板块相互作用的主要推动力,这一点可以通过环地中海-地中海褶皱-冲断的某些部分的迁移率增加来证明。断裂带,Rif中的逆冲冲断以及在非洲板块(中大西洋)的海洋断裂带中中新世晚期的胶状冲断构造的发生。Rif增生楔与北非边缘的碰撞触发了链条内部区域的新的压缩构造,从而影响了Mesorif和Intrarif的中新世晚期压缩变形发生在无序冲断中。在西地中海俯冲相关造山带的新近纪演化中,中新世晚期是非洲和欧洲板块相互作用的主要推动力,这一点可以通过环地中海-地中海褶皱-冲断的某些部分的迁移率增加来证明。断裂带,Rif中的逆冲冲断,以及在非洲板块(中大西洋)的海洋断裂带中新世晚期的胶状冲断构造的发生。由于Rif增生楔与北非边缘的碰撞触发了链内部区域的新的压缩构造。在西地中海俯冲相关造山带的新近纪演化中,中新世晚期是非洲和欧洲板块相互作用的主要推动力,这一点可以通过环地中海-地中海褶皱-冲断的某些部分的迁移率增加来证明。断裂带,Rif中的逆冲冲断,以及在非洲板块(中大西洋)的海洋断裂带中新世晚期的胶状冲断构造的发生。由于Rif增生楔与北非边缘的碰撞触发了链内部区域的新的压缩构造。在西地中海俯冲相关造山带的新近纪演化中,中新世晚期是非洲和欧洲板块相互作用的主要推动力,这一点可以通过环地中海-地中海褶皱-冲断的某些部分的迁移率增加来证明。断裂带,Rif中的逆冲冲断,以及在非洲板块(中大西洋)的海洋断裂带中新世晚期的胶状冲断构造的发生。
更新日期:2020-09-22
down
wechat
bug