Memoirs of the Geological Survey of Pakistan, Volume 8The Survey, 1969 |
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... sequence . The ammonites occur in a thin bedded limestone and shale sequence named by Arkell ( 1956 ) as Mazar Drik limestone and considered by Standard Vacuum Oil Company ( J. R. Huth , Section No. 54 , 1960 ) as a 50 feet thick unit ...
... sequence . The ammonites occur in a thin bedded limestone and shale sequence named by Arkell ( 1956 ) as Mazar Drik limestone and considered by Standard Vacuum Oil Company ( J. R. Huth , Section No. 54 , 1960 ) as a 50 feet thick unit ...
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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 ...
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 ...
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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 ...
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 ...
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Common terms and phrases
ammonite bed ammonite fauna ammonites from Wam argillaceous limestone bed Bajocian Baluchistan Bathonian Belemnite shale bifurcating body chamber Chiltan limestone Choffatia Choffatia Correlation Cutch described specimen diadematus Waagen Dimensions disconformably Dolikephalites Fatmi figured by Waagen Harnai holotype Hunting Survey indet involute Jurassic age Kheraiceras Bomburites limestone and shale Locality.-Wam Tangi Loralai Lower Callovian ammonite Lower Cretaceous Lower Jurassic Macrocephalites Indocephalites Macrocephalus Zone Massive limestone Mazar Drik formation Mazar Drik limestone Middle Jurassic outline of whorl Paralcidia are reported Paralcidia dubia Spath Parona perlamellosus Spath Plate Pleurocephalites polyphemus primary ribs prorsiradiate pyritic argillaceous limestone Quetta ribbing style Sarwan area sequence shell side view soorkaensis Spath species specimen from Nakus specimens internal mould Stratigraphic Range.-Lower Callovian style and side subgenus Survey of Pakistan synonymy Takatu limestone thickness Umbilical diameter thin bedded limestone Tithonian trifurcate umbilical wall umbilicus ventral view Vredenburg 1909 Wam Tangi whorl section whorl side Whorl thickness Umbilical