Results 41 to 50 of about 20,254 (256)
Evaluation Method of Pyroclastic Rock Reservoir Based on Gravel Parent Rock Composition
Cejing jishuThe fault system of a basin is complex and has the characteristics of multiple source, short source and rapid phase transition. T formation develops a set of stable sand conglomerate, which has great exploration potential.
DONG Lei +6 more
doaj +1 more source
Distribution and gas-bearing properties of Permian igneous rocks in Sichuan Basin, SW China
Petroleum Exploration and Development, 2019 Based on the analysis of outcrop, seismic, logging and drilling data, combined with exploration practice, the characteristics, distribution, reservoir performance and gas-bearing properties of Permian igneous rocks in Sichuan Basin are studied. The study
Xinhua MA +7 more
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Rifting and arc-related early Paleozoic volcanism along the North Gondwana margin: geochemical and geological evidence from Sardinia (Italy) [PDF]
, 2012 Three series of volcanic rocks accumulated during the Cambrian to Silurian in the metasediment-dominated Variscan basement of Sardinia. They provide a record of the changing geodynamic setting of the North Gondwana margin between Upper Cambrian and ...
BUZZI L +3 more
core +1 more source
Raman Spectroscopic Analysis and In Situ Heating Experiments on Adranosite Minerals
Journal of Raman Spectroscopy, EarlyView.This study provides the first detailed Raman spectroscopic characterization of rare ammonium sulfates adranosite, iron‐rich adranosite, and adranosite‐(Fe) from volcanic and coal‐fire environments. Distinct spectral features reveal compositional differences and structural effects of Fe substitution.
Filip Košek +4 more
wiley +1 more source
EPISODI VULCANICI IN SUCCESSIONI CARBONATICHE MEDIO-TRIASSICHE PREPIEMONTESI (COGOLETO, LIGURIA)
Rivista Italiana di Paleontologia e Stratigrafia, 2023 Tuffaceous layers of Middle-Triassic age, weakly metamorphosed, are interbedded within a carbonatic succession outcropping near Cogoleto (Voltri Group, Pennidic Zone of the Alps).
LUCIANO CORTESOGNO +2 more
doaj
Progress in Resource Evaluation Using a Handheld Raman Instrument Developed for Astronaut Missions
Journal of Raman Spectroscopy, EarlyView.Analogue studies were undertaken using a prototype, handheld Raman spectrometer (developed for astronaut usage on the moon) to collect data that would indicate the presence of water and help develop the technology to search for valuable trace elements (such as lithium and caesium).
J. G. T. Armstrong +5 more
wiley +1 more source
Mineralogical and petrophysical research of pyroclastic rock of volcano Eyjafjallajokull (Iceland)
RUDN Journal of Engineering Research, 2011 Take a mineralogical and petrophysical research of pyroclastic rock of volcano Eyjafjallajökull. Test a mineral composition and petrophysical properties of pyroclastic rock.
V Yu Abramov +2 more
doaj
Journal of Taibah University for Science, 2020 This study presents microscopic results of 50 samples and 5 in situ magnetic susceptibility profiles, field investigations and bedrock characteristics of northern Harrat Rahat Quaternary volcanic rocks, located in the southern part of Al-Madinah city ...
S. M. Sakr +3 more
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Process Mineralogy of Niobium Tantalum Iron Ore in Hubei
Kuangchan zonghe liyong, 2023 This is an essay in the field of process mineralogy. Rare metals such as lithium, beryllium, niobium and tantalum, as national strategic emerging resources, are mainly used in industrial fields such as national defense, aviation and aerospace, and have ...
Xiaoyu Li +3 more
doaj +1 more source
Sedimentology, EarlyView.ABSTRACT Tubular and curviplanar structures, outlined by the occurrence of haematite/goethite, chlorite, quartz and albite, are developed in the Middle Permian Broughton Formation in the southern Sydney Basin, New South Wales, Australia. These structures are interpreted as fluid‐flow pathways resulting from the ejection of heated pore fluids as a thick
Paul F. Carr +5 more
wiley +1 more source