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Arkell.1956.Jurassic..

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DINARIC RANGES AND DALMATIA I Q<br />

3<br />

characterizes it in Greece and the Apennines. Here the red marly limestones<br />

also yield some Upper Pliensbachian and basal Bajocian (Opalinum<br />

Zone) ammonites (Saxl, 1916; Magnani, 1942). The connexions with<br />

Greece were discussed by Renz (1904, 1908, 1927).<br />

The next-youngest dated fossiliferous rocks are the Lemesf Beds of<br />

Dalmatia, a thick series of flaggy to fissile, compact limestones (Plattenkalke),<br />

overlain by thick-bedded limestones with chert lenses, then 20-30 m.<br />

of spotted limestones, and finally unfossiliferous dolomite of unknown<br />

age (Furlani, 1910). At the base is a limestone yielding only a coral,<br />

Cladocoropsis mirabilis (Felix), of interest because it occurs in similar<br />

limestone in Cyprus (p. 352). The overlying Plattenkalke strongly<br />

resemble those at Solnhofen in Bavaria and contain some of the same<br />

species of fossils, including ammonites, and are probably of about the<br />

same age. Figured ammonites are Lithacoceras pseudoulmense (Furlani)<br />

and Taramelliceras dinaricum (Furlani), both new species, but 23 other<br />

species are recorded, including Aspidoceras longispinum (Sow.), Neochetoceras<br />

steraspis (Oppel), suggesting the Lithographicum and Beckeri<br />

Zones. Virgatosphinctes cf. denseplicatus (Waagen) alone is a misfit in<br />

the list and is probably misidentified.<br />

Limestones ascribed to the Tithonian, but seldom on adequate palaeontological<br />

evidence, have been recorded from Croatia (Vogl, 1916) to<br />

Albania (Bukowski, 1911; Nopcsa, 1929), sometimes transgressive on the<br />

ophiolite series; but some of the occurrences accepted even by Kossmat<br />

(1924) are said to be really Triassic (Ledebur, 1941, p. 495; Jovanovic,<br />

1951a).<br />

GREECE AND THE IONIAN ISLES<br />

The magic islands and mountains of Greece and the Aegean, the<br />

white marble promontories set among blue gulfs, and the outer rampart<br />

of Crete, were all blocked out by faulting and minor folding in the Pliocene<br />

and Quaternary. The potency of these late movements may be judged<br />

from the occurrence of Pliocene deposits at 1700 m. above sea-level in<br />

the northern Peloponnese, while off the SW. coast the present sea bed is at<br />

3000 m. below the surface. The existing upraised blocks represent in<br />

turn the ruins of a complicated chain of mid-Tertiary fold and thrust<br />

mountains which continue the Dinarides in an open curve, first southwards<br />

then swinging round SE. and finally east or NE. to join the rias coast of<br />

western Anatolia. The highest existing arc of these folds forms the<br />

Pindus Mountains, the backbone of central Greece; the outermost forms<br />

Crete and swings round to Rhodes.<br />

Facies belts in the Mesozoic and Eocene rocks roughly follow the strike<br />

of the mid-Tertiary folds (fig. 20). How far these facies belts reflect<br />

original palaeogeography is problematic. Most likely the evidence of<br />

Mesozoic and Eocene palaeogeography has been mutilated and falsified<br />

beyond hope of reconstruction by thrusting and nappe-formation. The<br />

date of the main movements is mid-Miocene. They affect the latest<br />

http://jurassic.ru/<br />

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