Transcurrent nature of the Teisseyre–Tornquist Zone in Central Europe: results of the POLCRUST-01 deep reflection seismic profile

Narkiewicz, Marek; Maksym, A.; Malinowski, M.; Grad, M.; Guterch, A.; Petecki, Zdzisław; Probulski, J.; Janik, Tomasz; Majdański, Mariusz; Środa, Piotr; Czuba, Wojciech; Gaczyński, E.; Jankowski, Leszek

doi:10.1007/s00531-014-1116-4

Cited by 62 publications

(107 citation statements)

References 38 publications

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“…8 km in the NE to 12 km and pos si bly even 15 km near the Holy Cross Fault (Malinowski et al, 2013;Narkiewicz et al, 2015). The lower crust is sim i lar to that of the neigh bour ing EEP in dis play ing a com pa ra ble thick ness and a char ac ter is tic lam i nar re flec tivity.…”

Section: £Ysogóry Blockmentioning

confidence: 92%

“…Re flec tion seis mic data used in this study are mainly derived from the POLCRUST-01 pro file (Malinowski et al, 2013Narkiewicz et al, 2015). This pro file pro vided the first detailed ob ser va tions on the base ment top and in ter nal struc ture of the lower crust be yond the EEP in Po land.…”

Section: Methodsmentioning

confidence: 99%

“…15 km wide lin ear tec tonic zone. The TTZ de fines the NE bound ary of the hun dreds of kilo metres-wide re gional unit, the Trans-Eu ropean Su ture Zone (Dadlez et al, 2005;Narkiewicz et al, 2015), stretch ing along the SW bor der of the EEP. The TESZ, orig inally de fined by Berthelsen (1993), is com monly con ceived as the Early Pa leo zoic accretionary belt be tween the TTZ and the Variscan Orogen (Pha raoh, 1999;Dadlez et al, 2005).…”

Section: Terminological Remarksmentioning

confidence: 99%

“…3 and 4). Its base ment is un known, whereas the Ediacaran to Ce no zoic cover has been ex ten sively de scribed in pre vi ous pub li ca tions (see, e.g., the re views by Dadlez et al, 1994;Narkiewicz et al, 2015). The NE bound ary -the Holy Cross Su ture -is mapped as the Holy Cross Fault in the Holy Cross Mts.…”

Section: Ma£opolska Blockmentioning

confidence: 99%

“…Of par ticu lar im por tance are the new re sults of mag netic in ves ti ga tions that con trib uted to de tailed map ping of re gional base ment units dif fer ing in mag ni tude and pat tern of mag netic anom a lies (Petecki, 2008). Key new data with far-reach ing con se quences for the ge ol ogy of the Pa leo zoic Plat form were re cently sup plied by the deep re flec tion seis mic pro file POLCRUST-01 cross ing the TTZ in SE Po land (Malinowski et al, 2013Narkiewicz et al, 2015). Re cently pub lished re sults of the regional re flec tion seis mic PolandSPAN Pro ject also pro vide a new source of data on the deeper struc ture of the SW mar gin of the EEP (Mazur et al, 2015(Mazur et al, , 2016b.…”

Section: Introductionmentioning

confidence: 98%

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Basement structure of the Paleozoic Platform in Poland

Narkiewicz

Petecki

2017

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1 Pol ish Geo log i cal In sti tute -Na tional Re search In sti tute, Rakowiecka 4, 00-975 Warszawa, Po land Narkiewicz, M., Petecki, Z., 2017. Base ment struc ture of the Pa leo zoic Plat form in Po land. Geo log i cal Quar terly, 61 (2): 502-520, doi: 10.7306/gq.XXXX The Pa leo zoic Plat form com prises the south west ern half of the Pol ish ter ri tory, sep a rated from the Pre cam brian East Eu ropean Plat form (EEP) by a NW-SE trending subvertical lithospheric-scale dis con ti nu ity -the Teisseyre-Tornquist Zone. In the pres ent study, the Pa leo zoic Plat form base ment is sub di vided based on geo log i cal and geo phys i cal ev i dence ac quired dur ing the last de cades, in clud ing deep seis mic re frac tion and re flec tion re sults, as well as grav ity, mag netic and magnetotelluric data. The units ad ja cent to the EEP, the Mid-Pol ish Do main (com pris ing the £ysogóry Block) and the Pom era nian Block, are char ac ter ized by a thinned three-layer EEP-type crys tal line crust (age 1.7-3.7 Gy). Their old est plat form cover is prob a bly com posed of thick Ediacaran syn-rift sed i men tary and vol ca nic rocks. Their west ern ex ten sion in the contig u ous Ger man and Bal tic area can be traced as far as the East Elbian Mas sif and Thor Su ture based mainly on mag netic anom aly pat terns. The Up per Silesian and Ma³opolska blocks lo cated in SE Po land are char ac ter ized by Cadomian (660-600 My) base ment over lain by the thick de formed Ediacaran foredeep de pos its. Whereas the units with the EEP-type base ment are in ter preted as prox i mal ter ranes dis placed along the EEP mar gin dur ing the late Early Pa leo zoic, the blocks with a Cadomian base ment are con ceived as ex otic ter ranes of a pos si ble Gondwanan prov e nance. All these ter ranes were accreted ul ti mately dur ing the fi nal, lat est Si lu rian stages of the Cal edo nian de for ma tion al though the ex act sce nario of the amal gam ation re mains hy po thet i cal. The Sudetic Do main in SW Po land is a col lage of dif fer ent crustal units jux ta posed ul timately in the Penn syl va nian (ca. 310 Ma) dur ing the fi nal ep i sodes of the Variscan Orog eny. Their north ern bound ary cor responds to the Rheic Su ture trace able in mag netic and grav ity anom a lies pat tern along the north ern mar gin of the Wolsztyn-Leszno High, and con tin u ing west wards along the Mid-Ger man Crys tal line High. The ar cu ate trace of the su ture in the NE is dextrally dis placed along the Odra Fault, and con tin ues south wards where it is mapped as the Moravian-Silesian Su ture.

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Section: £Ysogóry Blockmentioning

confidence: 92%

Section: Methodsmentioning

confidence: 99%

Section: Terminological Remarksmentioning

confidence: 99%

Section: Ma£opolska Blockmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

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Basement structure of the Paleozoic Platform in Poland

Narkiewicz

Petecki

2017

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Is the Teisseyre‐Tornquist Zone an ancient plate boundary of Baltica?

et al. 2015

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The Teisseyre-Tornquist Zone (TTZ) is generally regarded as a fossil plate boundary in Europe that extends 2000 km from the Baltic Sea to the Black Sea. We used an integrated approach merging potential fields and seismic data to explore crustal architecture across the TTZ in central Poland. The aim of the study was to test whether the TTZ coincides with an early Paleozoic (Caledonian) suture formed through the closure of the Tornquist Ocean along the SW Baltica margin. The suture is presumed to separate the East European Craton (EEC) from the Paleozoic terranes of Western Europe. Two seismic reflection lines from the PolandSPAN ™ experiment were used to image the deep structure at the SW margin of the EEC. Lines PL-5300 and PL-5400 run NE-SW in central and northern Poland, respectively. The seismic interpretation down to top of basement was integrated with 2-D gravity and magnetic modeling to highlight the structure of the deep crust. Both the gravity and magnetic models show a suture that welds together two blocks at the base of crust. However, top of basement above the suture dips uniformly to the SW and is overlain by undisturbed lower Paleozoic and younger sediments. By implication, the suture must have developed in the Precambrian and both crustal blocks amalgamated belong to the EEC. Consequently, the Caledonian suture, formed by the closure of the Tornquist Ocean between Avalonia and Baltica, must be located farther southwest beneath thick upper Paleozoic and Mesozoic sediments.

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