Results 11 to 20 of about 148,632 (254)

Research progress and prospects of coal petrology and coal quality in China

open access: yesInternational 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
doaj   +2 more sources

The Relationship between the Slope Hill and Bedrock with Some Soil Properties [PDF]

open access: yesمجله آب و خاک, 2023
Introduction Changes in soil properties depend on factors such as climate, topography, landscape features, altitude, parent material, and vegetation. The quantity and quality of soils obtained from different rocks (igneous, sedimentary and metamorphic ...
M. Jafarian, A. Golkarian, H. Emami
doaj   +1 more source

Rapid response petrology for the opening eruptive phase of the 2021 Cumbre Vieja eruption, La Palma, Canary Islands

open access: yesVolcanica, 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
semanticscholar   +1 more source

Mineral chemistry and geothermobarometry of gabbroic dykes ‎of the Garmab Ophiolite sequence ‎‎(Northeast of Kamyaran)‎ [PDF]

open access: yesپترولوژی, 2018
The Garmab ophiolite complex, a part of the Ophiolite-Radiolithic zone of Kermanshah, is located in the northeast of Kamyaran. In view of the Iranian geo-structural zones, this complex is situated between the Sanandaj-Sirjan Zone and the Zagros thrust ...
shahryar Mahmoudi   +2 more
doaj   +1 more source

An Algorithm for Thermodynamic Parameter Optimization: Application to the Martian Mantle

open access: yesGeochemistry, Geophysics, Geosystems, 2021
The compilation of thermodynamic models for geophysical applications is such a tedious and complex process that it is generally impractical for researchers to refit parameters in existing models in light of new constraints.
D. Khan, C. Liebske, J. A. D. Connolly
doaj   +1 more source

Carbonate Minerals’ Precipitation in the Presence of Background Electrolytes: Sr, Cs, and Li with Different Transporting Anions

open access: yesCrystals, 2023
Carbonate minerals are largely associated with many geological and biological environments as well as several industrial and technological processes. The crystalline characteristics of these mineral phases can be modified by background salts present in ...
Pedro Marin-Troya   +3 more
doaj   +1 more source

Laboratory leaching tests to investigate mobilisation of metals within engineered geothermal reservoirs [PDF]

open access: yesE3S Web of Conferences, 2019
Combining geothermal energy utilization with the extraction of metals in a single interlinked process offers a way to improve the economics of engineered geothermal systems.
Rochelle Christopher   +5 more
doaj   +1 more source

Petrophysical and mechanical properties of the Struganik limestone (Vardar zone, Western Serbia) [PDF]

open access: yesGeološki Anali Balkanskoga Poluostrva, 2011
The Struganik limestone has been increasingly popular in recent years for interior and exterior building applications, due to easy workability, low cost and multi purpose suitability.
Gajić Violeta   +3 more
doaj   +1 more source

Petrology and geochemistry of Eocene volcanic rocks from southeast of Khur (Isfahan province, Central Iran)

open access: yesJournal of Economic Geology, 2022
Introduction Subduction-related magmas are characterized by enrichment of large ion lithophile elements (LILEs), light rare earth elements (LREEs) and depletion in high field strength elements (HFSEs) (Harangi et al., 2007). These geochemical signatures
Paniz Shadman, Ghodrat Torabi
doaj   +1 more source

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