Abstract
No direct evidence for the Norian-Rhaetian tectonic activity has been gathered from the Slovenian territory until now. In the quarry in the vicinity of Škofja Loka, several palaeofaults transect the outcropping Bača Dolomite. The Norian-Rhaetian age of the Bača Dolomite is confirmed with the finding of the conodont species Norigondolella steinbergensis (Mosher, 1968). The formation of the faults is related to the openning of the future Jurassic Piemont-Ligurian Ocean to the west of the studied area, or with the diminishing influence of the Neotethys (Meliana) Ocean to the east.
Highlights
No direct evidence for the Norian-Rhaetian tectonic activity has been gathered from the Slovenian territory until now
V celot nem norijsko-retijskem zaporedju Slovenskega bazena Gale in sodelavci (2012) izdvajajo {tiri take nivoje, ki so datirani v spodnji in srednji norij, retij in konec triasa
No direct evidence for the Norian-Rhaetian tectonic activity has been gathered from the Slovenian territory until now
Summary
V zahodnem delu kamnoloma kot najstarej{e plasti izdanjajo ~rni, bituminozni, vzporedno laminirani dolomikriti s ~rnimi roženci. V zgornjem delu zapolnitev kanalov so pogoste {tevilne lupine brahiopodov Bituminozni dolomiti ve~ krat postopno preidejo v tanke- do srednjedebele plasti svetlo sivega dolomikrosparita Plastnatim dolomitom z erozijsko mejo sledi okoli 10 m debel paket dolomitiziranih, mestoma tudi okremenjenih konglomeratnih bre~ Bre~e so zrnsko ali muljasto podprte in polimiktne, vendar prvotna sestava klastov ni dolo~ljiva zaradi poznej{e dolomitizacije Nad bre~ami so z ostro mejo odložene plasti vzporedno laminiranega dolosparita z roženci. Posamezne plasti so debele 5 do 20 cm in lo~ene z nekaj centimetrov debelimi horizonti laporovca. Paket je v zahodnem delu kamnoloma debel 1,5 m in zapolnjuje razliko v paleoreliefu glede na osrednji in vzhodni del kamnoloma, kjer je razvitih le zgornjih 0,5 m zaporedja. Ki izdanja v kamnolomu se zaklju~i z masivnim dolosparitom z ravno spodnjo mejo
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