Geological Bulletin, Volume 14University of Peshawar, 1981 - Geology |
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Some of the gabbroic intrusions display in situ differentiation with one intrusion
grading from pyroxenitic tuter margin to leucogabbroic/dioritic interior with a core
of intrusive albitites. Amongst typical alkaline minerals, sodic pyroboles are ...
Some of the gabbroic intrusions display in situ differentiation with one intrusion
grading from pyroxenitic tuter margin to leucogabbroic/dioritic interior with a core
of intrusive albitites. Amongst typical alkaline minerals, sodic pyroboles are ...
Page
INTRODUCTION A number of basic to feldspathic intrusions occur in an area of
about 1 sq. km. along the west bank of the Indus river at the Tarbela damsite (34°
7'; 72°, 47')- The intrusions (sills, dykes and plugs) are petrographically varied ...
INTRODUCTION A number of basic to feldspathic intrusions occur in an area of
about 1 sq. km. along the west bank of the Indus river at the Tarbela damsite (34°
7'; 72°, 47')- The intrusions (sills, dykes and plugs) are petrographically varied ...
Page 173
Up to five phases of intrusions can be recognized in some outcrops. One of the
younger phases (but not the youngest) recorded SE of Gilgit is an undeformed
biotite-dino- pyroxene-hornblende-plagioclase lamprophyre having inclusions of
...
Up to five phases of intrusions can be recognized in some outcrops. One of the
younger phases (but not the youngest) recorded SE of Gilgit is an undeformed
biotite-dino- pyroxene-hornblende-plagioclase lamprophyre having inclusions of
...
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Contents
Petrography of the Loe Shilman Carbonatite Complex Khyber Agency | 29 |
Major Elements Abundance in the Kalam Lavas | 45 |
Sections of the Wargal Limestone Western Salt Range Pakistan | 63 |
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Common terms and phrases
albite albite-carbonate albitites alkaline rocks almandine Amph amphibole andesite apatite associated band beds betafite biotite blueschists brown Bull calc-alkaline calcareous calcite carbonate carbonatite Chaudhry chlorite clinopyroxene complex contain country rocks Desio diorites dolerites dolomite epidote fault feldspar fine-grained Formation gabbroic rocks gabbros garnet Geol Geology gneisses grains granitic belt granitic gneisses granitic rocks granodiorite graphitic schists Himalayas hornblende igneous Indus intrusions island arc Jurassic Kalam volcanic zone Karakoram KASC Kempe and Jan Khyber Agency Kohistan magma magnetite Mansehra margin Mauji metamorphism metasediments mica microfacies minerals MODAL COMPOSITION muscovite northern occur outcrop Pakistan pegmatite Peshawar Plain petrography petrology phases plagioclase pluton present Punjab Univ pyrite pyrochlore pyroxene pyroxenites quartz quartzite range region Reshian rhyolite river samples sandstones schistosity schists sediments sequence shales Shangla Shilman Siwalik sphene subduction suggest Swat syenites Tahirkheli Tarbela tectonic tourmaline ultramafic University of Peshawar uranium veins Wargal Limestone Warsak