Arkell.1956.Jurassic..

ELBURZ MOUNTAINS 373
Professor T. Harris, who has determined material collected by E. J.
White, informs me (in lit.) that the flora is probably Lower Liassic. NE.
of Teheran is a basal conglomerate resting on Carboniferous Limestone,
and the lower 30 m. of the Lias above this consists of cementstones with
indeterminable ammonites (see p. 368).
OF MAKRAN
FIG. 53.—Jurassic outcrops of Persia. Based on a map specially drawn by the (then)
Anglo-Iranian Oil Co., through the kindness of the late Dr G. M. Lees, F.R.S.
It appears that only these plant-beds swing round with the strike of
the mountain ranges by Meshed and eastwards across Afghanistan. The
marine limestones probably continue northward under the Kara Kum
or Turkmen depression, to join up with the Upper Jurassic outcrops of
Trans-Caspia on the one hand and Bokhara and the Pamirs on the other.
All this region was open, like the Caucasus, to the northern sea of Russia.
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