Results 11 to 20 of about 136,558 (327)
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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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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Improving crystallization and eruption age estimation using U-Th disequilibrium dating of young volcanic zircon [PDF]
GeochronologyQuantifying timescales and establishing robust eruption chronologies is critical for understanding the evolution and hazards of volcanic systems. U-Th disequilibrium dating on zircon is especially valuable for young and active systems (< 300 ka ...
Z. Moser +6 more
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Controls on zircon age distributions in volcanic, porphyry and plutonic rocks [PDF]
GeochronologyThe distribution of zircon crystallisation ages in igneous rocks has been proposed to provide insights into the dynamics of underlying magma reservoirs.
C. Nathwani +5 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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Bringing the Field into the Classroom by Using Dynamic Digital Maps to Engage Undergraduate Students in Petrology Research [PDF]
, 2004 This article describes the use of Dynamic Digital Maps (DDMs) in undergraduate petrology courses. A DDM is a stand-alone computer program that presents interactive geologic maps, digital images, movies, animations, text and data.
Christopher Condit, Theresa Boundy
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, 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 ...
Stolper, Edward
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Post-eruptive mobility of lithium in volcanic rocks
Nature Communications, 2018 Lithium, an increasingly economically important element, is also used to trace the cycling of materials through the Earth system. Here the authors show that post-eruptive processes such as degassing and groundmass crystallisation control the inventory of
B. S. Ellis +7 more
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Geologia Croatica, 2015 The basement of the Pannonian Basin contains several fractured metamorphic hydrocarbon reservoirs that typically form structural highs between the Neogene sedimentary sub-basins.
Lászlo Molnár +2 more
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The early Cycladic settlement at Dhaskalio, Keros: preliminary report of the 2008 excavation season [PDF]
, 2009 The 2008 excavations on the small island of Dhaskalio opposite Dhaskalio Kavos on the Cycladic island of Keros are reviewed. An account is given of the survey, recording many walls of the early Bronze Age, and of the excavations, continued from the 2007 ...
Brodie, N. +3 more
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