Memoirs of the Geological Survey of Pakistan, Volumes 7-8The Survey, 1969 |
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Page 10
... middle and later stages of development is extremely different . Only sometimes , some elements have through passage and occur in the deposits of different stages . First of all it concerns lead , which concentrates both in barite ores ...
... middle and later stages of development is extremely different . Only sometimes , some elements have through passage and occur in the deposits of different stages . First of all it concerns lead , which concentrates both in barite ores ...
Page
... Middle Jurassic ( Table - 1 ) . The age of the overlying Sembar Formation ( " Belemnite " shale ) may extend from Tithonian to Neocomian with a non sequence at the base extending from Middle Callovian to Pre Tithonian . As no direct ...
... Middle Jurassic ( Table - 1 ) . The age of the overlying Sembar Formation ( " Belemnite " shale ) may extend from Tithonian to Neocomian with a non sequence at the base extending from Middle Callovian to Pre Tithonian . As no direct ...
Page 3
... Middle Jurassic time . The Lower Callovian marine transgression was extremely shallow , as indicated by the condensed pyritic argillaceous ammonite bed , and the overlying pyritic siltstone . The basal beds of the succeeding " Belemnite ...
... Middle Jurassic time . The Lower Callovian marine transgression was extremely shallow , as indicated by the condensed pyritic argillaceous ammonite bed , and the overlying pyritic siltstone . The basal beds of the succeeding " Belemnite ...
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Common terms and phrases
ammonite ammonite bed antimony argillaceous limestone bed Bajocian Baluchistan Baluchistan geosynclinal development barite Bathonian Belemnite bifurcating body chamber central geosynclinal trough Chagai median massif Chiltan limestone Choffatia chromite chromite deposits Cutch described specimen diadematus Waagen disconformably Dolikephalites endogenous deposits endogenous mineralization Fatmi felsic fluorite fluorite deposits fractured genus geosynclinal holotype Homoeoplanulites indet Indian Platform Indocephalites Locality.-Wam Tangi Lower Callovian Lower Callovian ammonite Macrocephalites magmatism magnetite Massive limestone Mazar Drik formation Mazar Drik limestone metallogeny microconch molybdenum Noetling Oligocene Paleogene Paralcidia Pishin Pleurocephalites polyphemus primary ribs pyritic pyritic argillaceous limestone regularities of distribution ribbing style rocks Sembar formation sequence shale shell side view skarn southern Spath specimens internal mould Stratigraphic Range.-Lower Callovian subgenus Survey of Pakistan Takatu limestone thin bedded limestone Tithonian trifurcate ultramafic intrusions Umbilical diameter umbilical wall umbilicus Upper venter volcanogenous Vredenburg 1909 Wam Tangi West Pakistan Whorl height whorl section whorl side Whorl thickness