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The Florence Rise, the Western Bend of the Cyprus Arc

机译：佛罗伦萨上升，塞浦路斯弧的西弯

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The Florence Rise is a submarine feature extending from the island of Cyprus in the southeast to the Anaximander Mountains which form the northwestern end of the Cyprus Arc south of western Turkey. The eastern Florence Rise includes a topographic high near Cyprus while its central domain displays relatively low relief Most of the major elements of relief appear to be bounded by faults. in the light of new geophysical data. An underlying 'core' ridge, likely made of pre-Pliocene nappes emplaced from the north, separates relatively undeformed sediments to the northeast from actively shearing sediments and seismic basement, to the southwest. A dextral arc-parallel wrench zone, at least 15 km wide, has created a lineated seafloor texture and accompanying flower structures within the central Florence Rise. Apparent Riedel type conjugate shears within this system cut across the Florence Rise and mark changes in the relief along the arc. Several mud volcanoes are observed within the wrench zone and along associated faults, indicating that overpressuring at depth is relieved by these faults. There is no evidence for any typical subduction along this arcuate trend, which is considered to act as the present boundary between the African and Anatolian-Aegean plates. In contrast, both the nature of faulting and the morphology of the Florence Rise seem to indicate some degree of transpressional coupling between the two plates, even though they appear disconnected by a tectonic boundary in the form of a major shear zone.
机译：佛罗伦萨上升区是一个潜水艇，从东南的塞浦路斯岛一直延伸到Anaximander山，后者形成了土耳其西部以南的塞浦路斯弧的西北端。东部佛罗伦萨上升区包括塞浦路斯附近的地形高地，而其中部地区显示的地势相对较低。大多数主要的地貌要素似乎都受到断层的限制。根据新的地球物理数据。潜在的“核心”山脊可能是由上新世前的俯冲带构成，从北侧进入，将东北部相对未变形的沉积物与西南部的活跃剪切沉积物和地震基底分开。至少15公里宽的右旋弧形平行扳手区域在佛罗伦萨中部佛罗伦萨中心创造了带衬线的海底纹理和相关的花朵结构。该系统中的表观Riedel型共轭剪切机横切了Florence Rise，并标记了沿弧线的浮雕变化。在扳手区域内以及沿相关的断层处观察到了几个泥火山，表明这些断层减轻了深部的超压。没有证据表明这种弧形趋势有任何典型的俯冲作用，这种趋势被认为是非洲和安纳托利亚－爱琴海板块之间的当前边界。相反，断层的性质和弗洛伦斯高地的形态似乎都表明了两块板之间一定程度的超压耦合，即使它们以主要剪切带的形式被构造边界断开了。

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