Geological Bulletin, Volume 14University of Peshawar, 1981 - Geology |
From inside the book
Results 1-3 of 39
Page 16
... samples , one each from the pyroxenites , mela- , normal - gabbros , and diorites , suggest the compositional range from An to An " . It is noticeable that the An- content gradually decreases from the pyroxenites to diorites . In all ...
... samples , one each from the pyroxenites , mela- , normal - gabbros , and diorites , suggest the compositional range from An to An " . It is noticeable that the An- content gradually decreases from the pyroxenites to diorites . In all ...
Page 48
... samples plot close to the boundary line of field No. 4 and 3b and are described as rhyodacites . Rhyolite A generalized stratigraphic sequence of volcanics in a section along the Gabral River between Bahan Khwar and Utror Village ...
... samples plot close to the boundary line of field No. 4 and 3b and are described as rhyodacites . Rhyolite A generalized stratigraphic sequence of volcanics in a section along the Gabral River between Bahan Khwar and Utror Village ...
Page 186
... samples as tiny grains associated with clay . Tourmaline is a rare mineral present as eumorphic to subhedral tiny ... sample of lithic arenites was analysed . It contains 51.78 % SiO2 , 16.55 % Al2O , 10.55 % CaO and 5.43 % Fe2O . For ...
... samples as tiny grains associated with clay . Tourmaline is a rare mineral present as eumorphic to subhedral tiny ... sample of lithic arenites was analysed . It contains 51.78 % SiO2 , 16.55 % Al2O , 10.55 % CaO and 5.43 % Fe2O . For ...
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 |
Copyright | |
12 other sections not shown
Other editions - View all
Common terms and phrases
albite albite-carbonate albitites alkaline granites 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 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 magmatic magnetite Mansehra margin Mauji metamict metamorphism metasediments mica microfacies minerals MODAL COMPOSITION muscovite northern occur outcrop Pakistan pegmatite Peshawar Plain petrography petrology plagioclase pluton Punjab Univ pyrite pyrochlore 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 ultramafic University of Peshawar veins Warsak