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Palaeozoic-Recent geological development and uplift of the Amanos Mountains (S Turkey) in the critically located northwesternmost corner of the Arabian continent
Geodinamica Acta ( IF 1.5 ) Pub Date : 2017-01-01 , DOI: 10.1080/09853111.2017.1323428
Tamer Y. Duman 1 , Alastair H. F. Robertson 2 , Hasan Elmacı 3 , Meryem Kara 3
Affiliation  

Abstract We have carried out a several-year-long study of the Amanos Mountains, on the basis of which we present new sedimentary and structural evidence, which we combine with existing data, to produce the first comprehensive synthesis in the regional geological setting. The ca. N-S-trending Amanos Mountains are located at the northwesternmost edge of the Arabian plate, near the intersection of the African and Eurasian plates. Mixed siliciclastic-carbonate sediments accumulated on the north-Gondwana margin during the Palaeozoic. Triassic rift-related sedimentation was followed by platform carbonate deposition during Jurassic-Cretaceous. Late Cretaceous was characterised by platform collapse and southward emplacement of melanges and a supra-subduction zone ophiolite. Latest Cretaceous transgressive shallow-water carbonates gave way to deeper-water deposits during Palaeocene-Eocene. Eocene southward compression, reflecting initial collision, resulted in open folding, reverse faulting and duplexing. Fluvial, lagoonal and shallow-marine carbonates accumulated during Late Oligocene(?)-Early Miocene, associated with basaltic magmatism. Intensifying collision during Mid-Miocene initiated a foreland basin that then infilled with deep-water siliciclastic gravity flows. Late Miocene-Early Pliocene compression created mountain-sized folds and thrusts, verging E in the north but SE in the south. The resulting surface uplift triggered deposition of huge alluvial outwash fans in the west. Smaller alluvial fans formed along both mountain flanks during the Pleistocene after major surface uplift ended. Pliocene-Pleistocene alluvium was tilted towards the mountain front in the west. Strike-slip/transtension along the East Anatolian Transform Fault and localised sub-horizontal Quaternary basaltic volcanism in the region reflect regional transtension during Late Pliocene-Pleistocene (<4 Ma).

中文翻译:

位于阿拉伯大陆最西北角的阿玛诺斯山脉(土耳其南部)的古生代近代地质发育和隆升

摘要 我们对阿玛诺斯山脉进行了长达数年的研究,在此基础上我们提出了新的沉积和构造证据,并结合现有数据,在区域地质背景下进行了首次综合综合。约。南北向的阿玛诺斯山脉位于阿拉伯板块的最西北边缘,靠近非洲和欧亚板块的交汇处。古生代在冈瓦纳北部边缘堆积的混合硅质碎屑-碳酸盐沉积物。三叠纪裂谷相关沉积之后是侏罗纪-白垩纪的台地碳酸盐沉积。晚白垩世以台地塌陷、混杂岩和超俯冲带蛇绿岩南侵为特征。在古新世-始新世,最新的白垩纪海侵浅水碳酸盐岩让位于深水沉积物。始新世向南压缩,反映了最初的碰撞,导致了开放折叠、逆断层和双重作用。晚渐新世 (?)-早中新世期间积聚的河流、泻湖和浅海碳酸盐岩与玄武岩岩浆作用有关。中中新世期间的剧烈碰撞引发了前陆盆地,然后充满了深水硅质碎屑重力流。晚中新世-早上新世压缩产生了山地大小的褶皱和冲断层,在北部靠近 E 但在南部靠近 SE。由此产生的地表隆起引发了西部巨大冲积冲积扇的沉积。在主要地表隆起结束后,在更新世期间,沿两侧山翼形成了较小的冲积扇。上新世-更新世冲积层向西部山前倾斜。沿东安纳托利亚转换断层的走滑/位移和该地区局部的亚水平第四纪玄武岩火山作用反映了晚上新世-更新世(<4 Ma)期间的区域位移。
更新日期:2017-01-01
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