Results 31 to 40 of about 2,526,592 (352)

Distribution Law and Influencing Factors of Molybdenum in Soils and Crops in Luoyang, Henan Province

open access: yesYankuang ceshi, 2021
BACKGROUND Molybdenum is an essential and beneficial element for humans and crops and has an anti-cancer effect. The content of molybdenum and the pH of the soils are different in different regions, the content of molybdenum in crops varies greatly.
XIA Yan   +4 more
doaj   +1 more source

Distribution and Enrichment Characteristics of Selenium in Soil and Crops in Luoyang City, Henan Province

open access: yesYankuang ceshi, 2022
BACKGROUND The analysis of selenium enrichment characteristics in various crops planted in a certain area and investigation and evaluation of selenium content in selenium fertilizer crops can provide a basis for the development of selenium-enriched ...
SONG Yanbin   +4 more
doaj   +1 more source

Evaporate salt exploration by two dimensional (2D) seismic reflection method: Ankara- Polatlı region, Türkiye

open access: yesBulletin of the Mineral Research and Exploration, 2023
The presence of the evaporate salt zone in Ankara-Polatlı region has been determined by the drillings. It is thought to be the largest reserve in Türkiye. The seismic reflection method was used to determine the top-bottom levels of the region; its depth;
Büşra Bihter Demirci   +16 more
doaj   +1 more source

Influence of initial compaction and confining pressure on the hydraulic conductivity of compacted iron ore tailings [PDF]

open access: yesE3S Web of Conferences
The hydraulic conductivity of iron tailings is an important factor affecting the stability of tailings storage facilities. Stacking compacted filtered ore tailings is a promising alternative for safer tailings disposal. These tailings storage facilities’
dos Santos Roberto Aguiar   +4 more
doaj   +1 more source

Investigation Of Device For Geophysical Exploration At Shallow Depth [PDF]

open access: yes, 2017
The article presents the results of the development of the echolocation device for geophysical exploration at shallow depth. The principle of operation, block diagram and time diagrams of the echolocation device for geophysical exploration at shallow ...
Kuldashev, O. (Obbozzhon)   +1 more
core   +2 more sources

Mineral Exploration at the Kimmeria Fe-Cu Skarn Deposit, N. Greece: Reassessment and New Perspectives Focusing on the CRMs

open access: yesMaterials Proceedings
Following the worldwide increasing demand for Critical Raw Materials (CRMs), the Hellenic Geological Survey (HSGME) implemented a national project focused on the re-evaluation of certain Public Mining Areas in Greece.
Michalis Fitros   +10 more
doaj   +1 more source

Combining Karhunen–Loève expansion and stochastic modeling for probabilistic delineation of well capture zones in heterogeneous aquifers

open access: yesFrontiers in Earth Science, 2023
The delineation of well capture zones (WCZs), particularly for water supply wells, is of utmost importance to ensure water quality. This task requires a comprehensive understanding of the aquifer’s hydrogeological parameters for precise delineation ...
Wenfeng Gao   +3 more
doaj   +1 more source

Laser-Induced Breakdown Spectroscopy in Mineral Exploration and Ore Processing

open access: yesMinerals
Laser-induced breakdown spectroscopy (LIBS) is a type of optical emission spectroscopy capable of rapid, simultaneous multi-element analysis. LIBS is effective for the analysis of atmospheric gases, geological fluids, and a broad spectrum of minerals ...
Russell S. Harmon
semanticscholar   +1 more source

The C-H-O Isotopic Composition and Significance of Spodumene for Redamen Pegmatite Type Rare Metal Deposit in Western Sichuan

open access: yesKuangchan zonghe liyong, 2023
The Redamen rare metal deposit is located in the south western part of Keeryin pegmetite typed ore field in western Sichuan. It is a special deposit in the aspects of surrounding rock, element mineralization zoning and distance.
Wei Zhang   +8 more
doaj   +1 more source

Determination of Bromine in Brine by Wavelength Dispersive X-ray Fluorescence Spectrometry with Film Adsorption Pretreatment

open access: yesYankuang ceshi, 2015
Bromine exists mainly as ions in bromide brine and halide sulfate brine in the hydrosphere of the crust. Powder carrier pellet method is commonly used in analyzing bromine in brine by Wavelength Dispersive X-ray Fluorescence Spectrometry (WDXRF). However,
CHEN Jing-wei   +5 more
doaj   +1 more source

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