Brunovistulia is a complex superterrane in central Europe, the western part of which became tectonically involved in the Variscan belt and formed its Precambrian basement. The Silesian part of the Brunovistulian Terrane embraces metasediments and metavolcanic rocks whose protolith ages, provenance, geotectonic setting and pre-Variscan palaeogeography are still poorly known. Our LA-ICP-MS U-Pb zircon data, supported by geochemical studies of these rocks, show that paragneisses and quartzites in the Desná and Keprník domes stemmed from sedimentary basin(s) whose the maximum depositional age is c. 560–570 Ma. Detritus was mainly supplied from Cryogenian-Ediacaran source areas. Precambrian mica schists of the inner Velké Vrbno Dome had mainly Mesoproterozoic detrital component. The accompanied metavolcanics rocks mainly originated as subalkaline E-MORB-like basaltic effusives at c. 610–595 Ma that evolved in the within-plate environments of the retro-arc at the rear of the Ediacaran magmatic arc built of granitoids which were formed at 640–550 Ma. Because the detrital zircon age spectra indicate contributions from the sources bearing 2.2–1.1 Ga components, it is expected that the sedimentation and volcanism presumably occurred at the Amazonian part of the Gondwana mainland. A compilation of new and the existing data further indicates the complex structure of Brunovistulia. The Silesian and Moravian domains of the Brunovistulian superterrane differ in terms of lithology, age of magmatic rock units and isotopic characteristics. The two domains may have developed as different fragments of the same magmatic arc system at the Amazonian margin of peri-Gondwana which evolved for c. 100 Myr. Besides, our new data revealed an early Devonian (408 Ma) onset of volcanism in the westernmost margin of the continental Brunovistulian margin, thus c. 30–40 Ma earlier than the well-known late Devonian volcanism in the Vrbno Group further east.

Brunovistulia是中欧的一个复杂的超地带，其西部被构造性地卷入了Variscan带，并形成了其前寒武纪基底。Brunovistulian Terrane的Silesian部分包括变质沉积和变火山岩，其原生石时代，物源，大地构造背景和前Variscan古地理学仍然鲜为人知。我们的LA-ICP-MS U-Pb锆石数据得到了这些岩石的地球化学研究的支持，表明Desná和Keprník穹顶中的Paragneisses和石英岩起源于最大沉积年龄为c的沉积盆地。560–570马。碎屑主要从冰冻期-爱迪亚卡拉源地区提供。VelkéVrbno圆顶内部的前寒武纪云母片岩主要是中元古代碎屑成分。伴生的火山岩主要起源于c处的亚碱性E-MORB类玄武岩。610-595 Ma在板内环境中演化复古的后部内置花岗岩的埃迪卡拉岩浆弧形成在640-550毫安时的-arc。因为碎屑锆石的年龄谱表明来自含2.2–1.1 Ga成分的来源，所以预计沉积和火山活动大概发生在冈瓦纳大陆的亚马逊地区。对新数据和现有数据的汇编进一步表明了布鲁氏菌的复杂结构。Brunovistulian地层的西里西亚和摩拉维亚域在岩性，岩浆岩单元年龄和同位素特征方面有所不同。两个结构域可能开发作为同一岩浆弧系统的不同片段以亚马逊缘围-为c进化的冈瓦纳 100马币。此外，我们的新数据还揭示了早在泥盆纪（408 Ma）的布鲁诺维素大陆边缘最西端的火山爆发。比东部的Vrbno集团晚泥盆纪的火山活动早30-40 Ma。