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Page 23
54 , 1960 ) as a 50 feet thick unit . Apparently the “ massive limestone ” of
Noetling and Vredenburg ( = Chiltan limestone ) underlies this thin bedded
Mazar Drik limestone of Arkell ( 1956 ) or the “ polyphemus ” Beds of Vredenburg
( 1909 ) .
54 , 1960 ) as a 50 feet thick unit . Apparently the “ massive limestone ” of
Noetling and Vredenburg ( = Chiltan limestone ) underlies this thin bedded
Mazar Drik limestone of Arkell ( 1956 ) or the “ polyphemus ” Beds of Vredenburg
( 1909 ) .
Page 24
NON SEQUENCE B. Mazar Drik formation ( ii ) Highly pyritic siltstone 2-3 feet ( i )
Grey , brownish grey pyritic argillaceous limestone , fossiliferous ( Lower
Callovian ammonites , bivalves , Belemnopsis sp . ) with a 6 " to very thin
ferruginous ...
NON SEQUENCE B. Mazar Drik formation ( ii ) Highly pyritic siltstone 2-3 feet ( i )
Grey , brownish grey pyritic argillaceous limestone , fossiliferous ( Lower
Callovian ammonites , bivalves , Belemnopsis sp . ) with a 6 " to very thin
ferruginous ...
Page 10
NON SEQUENCE B. Mazar Drik formation (ii) Highly pyritic siltstone 2-3 feet (i)
Grey, brownish grey pyritic argillaceous limestone, fossiliferous (Lower Callovian
ammonites, bivalves, BelemnopSls sp.) With a 6 to very thin ferruginous reddish ...
NON SEQUENCE B. Mazar Drik formation (ii) Highly pyritic siltstone 2-3 feet (i)
Grey, brownish grey pyritic argillaceous limestone, fossiliferous (Lower Callovian
ammonites, bivalves, BelemnopSls sp.) With a 6 to very thin ferruginous reddish ...
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Common terms and phrases
Alpine ammonite ammonite bed antimony argillaceous Arkell associated Baluchistan geosynclinal barite Bela Belemnite belt body chamber Bomburites border central geosynclinal trough Chagai median massif characteristic characterized Chiltan limestone Choffatia chromite chromite deposits closely comparable complex confined connected consider copper correlation Cretaceous Cutch described diameter Dimensions distinguished distribution early effusives endogenous deposits endogenous mineralization extending fauna figured folded followed formation formed fractured geological Geological Survey geosynclinal development Jurassic Kheraiceras known late limits Lower Callovian Macrocephalites magmatism manifestations Mazar Drik metallogeny Middle molybdenum Nakus Neocomian Noetling occur Oligocene origin outline Paralcidia Pishin-Makran Platform possible present pyritic region regularities relation represented ribs rocks sedimentation sequence shale shell skarn southern Spath specimen stage structures submarine Survey of Pakistan thickness thin took ultramafic intrusions umbilical unit Upper Waagen Wam Tangi West Pakistan whorl section whorl side widely zone
Bibliographic information
| Title | Memoirs of the Geological Survey of Pakistan, Volumes 7-8 Memoirs of the Geological Survey of Pakistan, Geological Survey of Pakistan Memoirs of the Geological Survey of Pakistan: Palaeontologia Pakistanica |
| Contributor | Geological Survey of Pakistan |
| Publisher | The Survey, 1969 |
| Original from | the University of Michigan |
| Digitized | 14 Feb 2008 |
| Export Citation | BiBTeX EndNote RefMan |