Geological Bulletin, Volume 11University of Peshawar, 1979 - Geology |
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Page 155
Quartz and biotite are their dominant constituents with subsidiary muscovite and
ore . Iron oxide leaching occures along the grains contacts . The Mixed Series
The mixed series consists of sedimentary / metasedimentary rocks ( shales ...
Quartz and biotite are their dominant constituents with subsidiary muscovite and
ore . Iron oxide leaching occures along the grains contacts . The Mixed Series
The mixed series consists of sedimentary / metasedimentary rocks ( shales ...
Page 174
These make up one of the dominant rock - types of the investigated area and
besides croping out at certain exposures along the Mohmand - Bajaur Agency
border in the south , these are found best developed in the north and north -
western ...
These make up one of the dominant rock - types of the investigated area and
besides croping out at certain exposures along the Mohmand - Bajaur Agency
border in the south , these are found best developed in the north and north -
western ...
Page 186
No doubt , in case when rocks were near to granitic composition , there was no
need for introduction of alkalies and mineral recrystalization could have been the
dominant phenomenon attended by , only minor chemical reorganization .
No doubt , in case when rocks were near to granitic composition , there was no
need for introduction of alkalies and mineral recrystalization could have been the
dominant phenomenon attended by , only minor chemical reorganization .
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Common terms and phrases
abundant altered amphibole amphibolites anorthosite appears associated bands basic bedded belt biotite bodies Bull Chitral clinopyroxene common complex composition considered contain dark developed diorites east epidote exposed extend fault feldspar foliation Formation garnet Geol Geology Gilgit gneisses gneissose grains granitic granulites green grey Group Hazara Himalaya hornblende igneous inclusions Indus intrusions Jijal Kalam Khan Kohistan layers less light limestone locally located lower major margins mass material medium metamorphic Mian Middle minerals minor Nanga Parbat norites northern occur opaque origin Pakistan pegmatites Peshawar places plagioclase plate present probably pyroxene pyroxene granulites pyroxenites quartz quartzites range rare region reported result rocks schists sequence sericite slates southern stream structure studies suggest Swat Tahirkheli tectonic thick thin thrust traces trend twinning ultramafic Univ upper usually valley veins volcanic western zone ܘ ܘ ܘ