Geological Bulletin, Volume 11University of Peshawar, 1979 - Geology |
From inside the book
Results 1-3 of 72
Page 75
... plagioclase , ortho- and clinopyroxene , and quartz seems generally to have occurred simultaneously . The Plagioclase The plagioclase is fairly fresh or slightly cloudy along grain boundaries , fractures and internal spots ( Pl . 4a ) ...
... plagioclase , ortho- and clinopyroxene , and quartz seems generally to have occurred simultaneously . The Plagioclase The plagioclase is fairly fresh or slightly cloudy along grain boundaries , fractures and internal spots ( Pl . 4a ) ...
Page 76
... plagioclase during metamorphism or , less probably , they are primary ( magmatic ) inclusions of a silica mineral that have been recrystallised along with the enclosing plagioclase during metamorphism . Although none of the plagioclase ...
... plagioclase during metamorphism or , less probably , they are primary ( magmatic ) inclusions of a silica mineral that have been recrystallised along with the enclosing plagioclase during metamorphism . Although none of the plagioclase ...
Page 87
... plagioclase , and typical polygonal pyroxene . Some of the plagioclase grains ( upper centre ) are zoned and strained . Droplets of quartz in the large plagioclase grains are noticeable . Pyroxene granulite ( 197 ) with cloudy plagioclase ...
... plagioclase , and typical polygonal pyroxene . Some of the plagioclase grains ( upper centre ) are zoned and strained . Droplets of quartz in the large plagioclase grains are noticeable . Pyroxene granulite ( 197 ) with cloudy plagioclase ...
Other editions - View all
Common terms and phrases
abundant amphibole amphibolites andesite anorthosite assemblages associated Bajaur Baltistan bands Baraul belt biotite Bull calc-alkaline Chaudhry Chitral chlorite clinopyroxene coarse-grained composition contain Cretaceous Desio Diwangar epidote fault feldspar foliation Formation garnet granulites Geol Geology Gilgit gneisses gneissose grains granitic rocks Granodiorite granulites green Greenstone Complex grey Group Hazara Himalaya hornblende hypersthene igneous Indo-Pakistan Indus valley intrusions island arc Jan and Mian Jandul Kakar Kalam Karakoram Khan Kohistan layers limestone mafic magma Main Mantle Thrust margins metamorphic metasedimentary rocks metasediments mica Nanga Parbat norites occur opaque minerals orthopyroxene outcrops Pakistan pegmatites peridotites Peshawar Petrography petrology plagioclase plate pyroxene pyroxene granulites pyroxenites quartz diorites quartzites rarely region Reshun rutile schists sequence SiO2 slates southern sphene structure suture zone Swat Kohistan syntaxis Tahirkheli tectonic Tertiary texture thick trend tuffs twinning ultramafic rocks Univ Upper Swat Ushu Gol Utmankhel veins vicinity volcanic rocks whilst xenoliths Yasin