Geological Bulletin, Volumes 17-18University of Peshawar, 1984 - Geology |
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Page 11
TABLE 4. CHEMICAL VARIATION ACROSS TWO CHROMITE GRAINS Margin Core Margin Margin Core 1 2 3 4 5 1 2 3 Margin 5 Cr 11.99 11.95 11.81 12.02 12.06 11.99 : 12.81 12.91 ... margins . TABLE 3. REPRESENTATIVE ANALYSES OF THE SILICATES IN CHROMITE -
TABLE 4. CHEMICAL VARIATION ACROSS TWO CHROMITE GRAINS Margin Core Margin Margin Core 1 2 3 4 5 1 2 3 Margin 5 Cr 11.99 11.95 11.81 12.02 12.06 11.99 : 12.81 12.91 ... margins . TABLE 3. REPRESENTATIVE ANALYSES OF THE SILICATES IN CHROMITE -
Page 98
... margins , submarine trenches , magmatic arcs , possible back - arc magmatic belts and thrust belts , remnant ocean basins , suture zones and collision - related ophiolite sheets , hinterland margins of the overiding plate , foreland ...
... margins , submarine trenches , magmatic arcs , possible back - arc magmatic belts and thrust belts , remnant ocean basins , suture zones and collision - related ophiolite sheets , hinterland margins of the overiding plate , foreland ...
Page 10
... margins . In rare grains , barroisitic margins have outer zones of actinolitic amphibole . Some grains are entirely made up of either of these two ; these may represent completely replaced grains of sodic amphibole . The sequence of ...
... margins . In rare grains , barroisitic margins have outer zones of actinolitic amphibole . Some grains are entirely made up of either of these two ; these may represent completely replaced grains of sodic amphibole . The sequence of ...
Contents
UNIVERSITY OF PESHAWAR | 1 |
Distribution of trace elements in ophiolites from Cazaneshti | 17 |
Petrochemistry of the rocks from Babaji area a part of the Ambela granitic | 31 |
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actinolite Afghanistan amphibole amphibolite analyses anorthosites associated basalt Batura belt Bibai biotite block blueschist facies Bull calcic amphibole chemical Chilas complex chlorite chromite clinopyroxene composition coronas Cretaceous crossite deposits diamictite dunite epidote fault feldspar folds Formation garnet Geol Geology glacier glaucophane gneisses grains granulites greenschist high-P Himalaya hornblende Hunza igneous Indus suture intrusions island arc Karakorum kbar Khan Kohistan Ladakh laterite lavas layers limestone mafic mafic rocks magmatic magnetite Malakand Manglaur Mansehra margins melange metamorphic metasediments mica minerals Mingora Mohmand Agency mylonites Na₂O norites northern Pakistan obducted occur olivine ophiolite orthopyroxene Pakistan peridotites Petrology phengite plagioclase plate plot pyroxene pyroxenites quartz range samples schist sediments sequence serpentinite Shangla shear Shergarh Sar area SiO2 Siwalik Group sodic amphibole spinel suggest Surv suture zone Swat Table Tahirkheli tectonic temperature texture thrust troctolites ultramafic ultramafic rocks Univ University of Peshawar volcanic