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The Upper Cretaceous Mamonia Mélange (Petra tou Romiou, southwestern Cyprus): composition and age
Cretaceous Research ( IF 2.1 ) Pub Date : 2021-04-22 , DOI: 10.1016/j.cretres.2021.104850
Nikita Bragin , Liubov Bragina , Efthymios Tsiolakis , Vasilis Symeou

Spectacular exposures of the Mamonia Mélange are studied in the Petra tou Romiou area, in southwestern Cyprus, with aim to distinguish the nature and age assignment of this chaotic complex. It is a typical tectonic mélange made up of clayey/silty matrix and blocks, which are mainly derived from the sedimentary and volcano-sedimentary rocks of the Ayios Photios and Dhiarizos groups respectively, as well as subordinate blocks derived from the Troodos Ophiolite Complex. The youngest blocks within the Mamonia Mélange are comprised by cherts that exhibit a well-preserved lower Turonian radiolarian assemblage. In the studied area, the tectonic mélange is overlain with clear unconformity by the upper Campanian–lower Maastrichtian bentonitic clays of the Kannaviou Formation. This indicate that the Mamonia Mélange was formed between the Turonian to Campanian period, as a result of the collision and juxtaposition of the Mamonia Complex with the Troodos Ophiolite Complex.



中文翻译:

上白垩纪MamoniaMélange(塞浦路斯西南部的Petra tou Romiou):组成和年龄

在塞浦路斯西南部的Petra tou Romiou地区研究了MamoniaMélange的壮观曝光,目的是区分这种混乱建筑群的性质和年龄。它是典型的构造混杂岩,由黏土质/粉质质基质和块体组成,主要来源于Ayios Photios和Dhiarizos组的沉积岩和火山沉积岩,以及从Troodos Ophiolite Complex衍生的次生块体。MamoniaMélange内最年轻的地块由表现出保存完好的下土伦放射虫组合的石组成。在研究区,构造混杂岩被卡纳维欧组的上坎帕尼—下马斯特里赫特膨润土上覆,明显不整合。

更新日期:2021-05-06
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