Reconstruction of Cretaceous rifts incorporated in the Outer West Carpathian wedge by balancing

Němčok, Michal; Nemcok, J.; Wojtaszek, M.; Ludhová, L.; Oszczypko, Nestor; Sercombe, William J.; Cieszkowski, Marek; Paul, Zbyszek; Coward, M. P.; Ślączka, Andrzej

doi:10.1016/s0264-8172(00)00045-3

Cited by 33 publications

(23 citation statements)

References 22 publications

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“…The Proto-Silesian Basin (Waśkowska et al 2009) During Late Jurassic to Aptian times the development of the Outer Carpathian basins was controlled by normal faulting and synrift subsidence which was associated with alkaline volcanism in the Western Carpathians. This was followed by post-rift thermal subsidence, resulting in the AlbianCenomanian expansion of deep-water facies (Nemčok et al 2001;Poprawa et al 2002). these rocks have been recognized in Albian sediments of the Lhoty Formation (Geroch et al 1972).…”

Section: Geological Setting and Samplingmentioning

confidence: 99%

“…Sometimes, on reaching the sea-floor, they flowed laterally to form local lava piles. This initial rifting phase never resulted in sea-floor spreading (Nemčok et al 2001). The major-and trace-element patterns, and also the Nd-Sr isotopic values, indicate that the parental magma of the differentiated rocks series of the TPA was likely to have been the product of partial melting in an enriched, HIMU OIB-like upper mantle (Narębski 1990;Dostal & Owen 1998;Harangi et al 2003;Włodyka 2010).…”

Section: Introductionmentioning

confidence: 99%

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LA-ICP-MS U-Pb apatite dating of Lower Cretaceous rocks from teschenite-picrite association in the Silesian Unit (southern Poland)

Szopa¹,

Włodyka²,

Chew³

2014

Geologica Carpathica

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Abstract:The main products of volcanic activity in the teschenite-picrite association (TPA) are shallow, sub-volcanic intrusions, which predominate over extrusive volcanic rocks. They comprise a wide range of intrusive rocks which fall into two main groups: alkaline (teschenite, picrite, syenite, lamprophyre) and subalkaline (dolerite). Previous 40 Ar/ 39 Ar and 40 K/ 40 Ar dating of these rocks in the Polish Outer Western Carpathians, performed on kaersutite, sub-silicic diopside, phlogopite/biotite as well as on whole rock samples has yielded Early Cretaceous ages. Fluorapatite crystals were dated by the U-Pb LA-ICP-MS method to obtain the age of selected magmatic rocks (teschenite, lamprophyre) from the Cieszyn igneous province. Apatite-bearing samples from Boguszowice, Puńców and Lipowa yield U-Pb ages of 103± 20 Ma, 119.6 ± 3.2 Ma and 126.5 ± 8.8 Ma, respectively. The weighted average age for all three samples is 117.8 ± 7.3 Ma (MSWD =2.7). The considerably smaller dispersion in the apatite ages compared to the published amphibole and biotite ages is probably caused by the U-Pb system in apatite being less susceptible to the effects of hydrothermal alternation than the 40 Ar/ 39 Ar or 40 K/ 40 Ar system in amphibole and/or biotite. Available data suggest that volcanic activity in the Silesian Basin took place from 128 to 103 Ma with the the main magmatic phase constrained to 128-120 Ma.

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Section: Geological Setting and Samplingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

LA-ICP-MS U-Pb apatite dating of Lower Cretaceous rocks from teschenite-picrite association in the Silesian Unit (southern Poland)

Szopa¹,

Włodyka²,

Chew³

2014

Geologica Carpathica

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“…Prior to any orogenic tectonism, the nappe sed i ments were ac cu mu lated in a se ries of sed i men tary bas ins on the north ern mar gin of the Tethys Ocean (Ksi¹¿kiewicz, 1972;Tokarski, 1980;Oszczypko and OEl¹czka, 1985;Konon, 2001;Nemèok et al, 2001). The in di vid ual bas ins were sep arated by a se ries of sub ma rine up lifts and el e va tions.…”

Section: Introductionmentioning

confidence: 99%

Organic-matter vitrinite reflectance variability in the Outer Carpathians, Poland: relationship to tectonic evolution

Zielińska

2016

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Zieliñska, M., 2017. Or ganic-mat ter vitrinite reflectance vari abil ity in the Outer Carpathians, Po land: re la tion ship to tec tonic evo lu tion. Geo log i cal Quar terly, 61 (1): 214-226, doi: 10.7306/gq.1338 Ran dom vitrinite reflectance of allochthonous plant ma te rial var ies through out all the flysch sed i men tary units of the Outer West ern Carpathians. The vitrinite reflectance of coalified phytogenic mat ter is vari able even within the same lithostratigraphic unit. There is no clear re la tion ship be tween ran dom vitrinite reflectance and stra tig ra phy (age of par tic u lar strata) within sur face sam ples. The typ i cal pat tern of in creas ing ran dom reflectance with depth in bore holes is un set tled by R r o "jumps" which oc cur within folds and overthrusts. How ever, this study re vealed a trend of in creas ing ran dom vitrinite reflectance from north to south in the area of the Magura Unit. A compressional re gime in volv ing phases of up lift and burial, vary ing from place to place in the flysch ba sin, was the main fac tor in flu enc ing coalification. The ini tial ma tu rity of or ganic mat ter trans ported to the ma rine en vi ron ment was a sec ond ary fac tor. A de gree of coalification had oc curred in the flysch sed i ments prior to the main stage of fold-and-thrust move ments as so ci ated with the phase of max i mum tec tonic sub si dence at the end of the Eocene. It is gen er ally as sumed that coalified plant ma te rial dis persed in sed i men tary rocks ex pe ri enced the same phys i cal and chem i cal changes as those in larger ac cu mu la tions of coal. Coalification of phytogenic ma te rial co eval with flysch in the Outer Carpathians cor re sponds to the in ter val from sub-bi tu mi nous to low-me dium-rank bi tu mi nous coal.

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“…The up lift of the source area was con nected with pro cesses of tec tonic re con struc tion in their sur round ings (e.g., Pescatore and Ślączka, 1984;Oszczypko, 1999;Nemčok et al, 2001;Olszewska and Wieczorek, 2001;Poprawa et al, 2002;Golonka, 2004;Cieszkowski et al, 2012;Ślączka et al, 2012;Rauch, 2013). Dur ing de creased di astrophic move ments, the peneplanated source area did not pro vide coarse-clastic terrigenous ma te rial (regolith in a ge netic sense) to the ba sin and even the pro cess of eustatic re gres sion would not be able to de liver a con sid er able amount of sand and gravel from an "empty" shelf.…”

Section: Discussionmentioning

confidence: 99%

Late Cretaceous - Early Palaeogene sandy-to-gravelly debris flows and their sediments in the Silesian Basin of the Alpine Tethys (Western Outer Carpathians, Istebna Formation)

Strzeboński

2014

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The study fo cuses on Up per Cre ta ceous-Paleocene de pos its from the Beskid Śląski moun tain range in south ern Po land con sti tut ing the Istebna Beds. The Istebna Beds, also re ferred to as the Istebna For ma tion, are part of the Silesian tec tonic unit, which forms the Outer Carpathian fold-and-thrust belt (part of the Al pine-Carpathian sys tem). The re sults of qual i ta tive and quan ti ta tive lithological-sedimentological stud ies were the ba sis for the in ter pre ta tion of lithofacies types, sed i men tary pro cesses and palaeoenvironment as well as for the re con struc tion of the ar chi tec ture of the depositional sys tem. The anal ysis con ducted on the ba sis of field de scrip tion of the de pos its shows the prev a lence (nearly 70%) of siliciclastic strata rep resent ing a sand stone-con glom er ate as so ci a tion (S-C), which is the main sub ject of this work. The S-C lithofacies: sand stones, grav elly sand stones, sandy con glom er ates and con glom er ates con sti tute the de pos its formed mostly by mass grav ity-flows such as sandy-to-grav elly de bris flows. The dis tri bu tion of the coarse-clastic ma te rial in di cates a sed i ment supply from south erly di rec tions and im plies the pres ence of an ac tive source area in the rear part of the Silesian Ba sin. A succes sion of the sand stone-to-con glom er ate de pos its with the sec ond ary par tic i pa tion of other lithofacies, with a thick ness of ap prox i mately two thou sand metres, in di cates tem po rary in creased di a strophic ac tiv ity in the Silesian Ridge (source area) and the in tense de nu da tion of this area. The up lift of the alimentation area and its de struc tion co in cid ing with en forced rel ative re gres sion and the un cov er ing of the prox i mal depositional zone of the ba sin led to resedimentation of the older intrabasinal ma te rial and re peated mass de po si tion to gether with de liv ery of extraclasts of pre-ex ist ing rocks and min er als. The lithofacies de vel op ment of the sand stone-to-con glom er ate debrites and the re lated sed i men tary palaeotransport di rections sug gest an ac cu mu la tion do main in the form of a lin ear apron depositional sys tem de vel oped in a deep-wa ter set ting. Ex per i men tal mod el ling of sub aque ous sandy flows has con trib uted to a better un der stand ing of the com plex gen e sis of deep-wa ter sed i ment grav ity flows de vel op ing in depositional sys tems rich in sand ma te rial.

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Reconstruction of Cretaceous rifts incorporated in the Outer West Carpathian wedge by balancing

Cited by 33 publications

References 22 publications

LA-ICP-MS U-Pb apatite dating of Lower Cretaceous rocks from teschenite-picrite association in the Silesian Unit (southern Poland)

LA-ICP-MS U-Pb apatite dating of Lower Cretaceous rocks from teschenite-picrite association in the Silesian Unit (southern Poland)

Organic-matter vitrinite reflectance variability in the Outer Carpathians, Poland: relationship to tectonic evolution

Late Cretaceous - Early Palaeogene sandy-to-gravelly debris flows and their sediments in the Silesian Basin of the Alpine Tethys (Western Outer Carpathians, Istebna Formation)

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