Results 11 to 20 of about 146,299 (379)
III.-The petrology of the District [PDF]
Proceedings of the Geologists' Association, 1915 n ...
G. W. Tyrrell
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Reviews of Geophysics, 1979 The central issues in petrology have remained remarkably unchanged in the last 50 years. In igneous petrology, the focus is on understanding the nature and cause of diversity in igneous rocks: on identifying primary magma types and constraints on the compositional and mineralogical characteristics, the physical conditions, and the evolutions of their ...
Stolper, Edward
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Research progress and prospects of coal petrology and coal quality in China
International Journal of Coal Science & Technology, 2020 Clean utilization of coal depends on the quality of raw coal, which depends on the coal-forming parent materials (petrology and chemical composition of coal), the multiple media of the coal-forming environment, and some epigenetic conditions, such as ...
Yuegang Tang, Ruiqing Li, Shaoqing Wang
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American Mineralogist, 2015 Petrologic investigations of martian rocks have been accomplished by mineralogical, geochemical, and textural analyses from Mars rovers (with geologic context provided by orbiters), and by laboratory analyses of martian meteorites. Igneous rocks are primarily lavas and volcaniclastic rocks of basaltic composition, and ultramafic cumulates; alkaline ...
H. McSween
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Petrological Abstracts and Reviews [PDF]
The Journal of Geology, 1911 Albert Johannsen +2 more
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MICROFACIES ANALYSIS OF LATE JURASSIC SAMANA SUK FORMATION, HAZARA BASIN LESSER HIMALAYA NORTH PAKISTAN [PDF]
Earth Science Malaysia, 2020 The detailed petrological investigation of Samana Suk Formation from Hazara Basin, Pakistan was carried out to elaborate its microfacies. The Samana Suk Formation is mostly composed of fine to coarse-grained, limestone with dolomite in parts developed as
Yasin Rahim +5 more
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Volcanica, 2022 How and why magmatic systems reactivate and evolve is a critical question for monitoring and hazard mitigation efforts during initial response and ongoing volcanic crisis management.
M. Pankhurst +12 more
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LATE-DEVONIAN SAKHARA DUNITE-CLINOPIROXENITE-GABBRO COMPLEX (EAST MAGNITOGORSK ZONE, SOUTH URALS): PETROLOGICAL-MINERALOGICAL FEATURES AND GEODYNAMIC SETTING [PDF]
Минералогия, 2021 The relevance of the work is caused by necessary regional analysis of magmatic evolution of the East Magnitogorsk belt and refinement of ideas on geodynamics of the South Urals.
T.N. Surin
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Известия Томского политехнического университета: Инжиниринг георесурсов, 2021 The relevance of the research is caused by the need to clarify the absolute age and to study the features of petrology and geochemistry of moderately alkaline rocks – syenites and monzonites of the Siya-Ushpinsky interfluve in the northeastern Altai ...
Anatoly I. Gusev, Evgeniya M. Tabakaeva
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