Results 11 to 20 of about 515,005 (311)

Determination of W, Mo and 11 Other Elements in Tungsten-Molybdenum Ores by Inductively Coupled Plasma Optical Emission Spectrometry with Lithium Metaborate Fusion

open access: yesYankuang ceshi, 2021
BACKGROUND Tungsten molybdenum ores are strategic mineral resources. China is a large producer and consumer of tungsten and molybdenum ore. Accurate and efficient analysis of tungsten and molybdenum and its associated beneficial and harmful elements is ...
WANG Li-qiang   +6 more
doaj   +1 more source

A radiometric airborne geophysical survey of the Isle of Wight [PDF]

open access: yes, 2011
A high resolution airborne geophysical survey across the Isle of Wight and Lymington area conducted in 2008 provided the first modern radiometric survey across the geological formations that characterise much of southern England.
Beamish, David, White, James C.
core   +1 more source

The deeper the better? A thermogeological analysis of medium-deep borehole heat exchangers in low-enthalpy crystalline rocks

open access: yesGeothermal Energy, 2022
The energy sector is undergoing a fundamental transformation, with a significant investment in low-carbon technologies to replace fossil-based systems. In densely populated urban areas, deep boreholes offer an alternative over shallow geothermal systems,
Kaiu Piipponen   +6 more
doaj   +1 more source

A design of gold-bearing metallogenic provinces and districts in Brazil

open access: yesJournal of the Geological Survey of Brazil
There is a lack of consensus on how many and which are the Brazilian gold provinces and districts, and what are their limits or configurations. As an effort of the Geological Survey of Brazil to standardize this subject, we present a compilation of the ...
Evandro Klein   +16 more
doaj   +1 more source

In situ U-Pb Isotope Dating Techniques for Sandstone-type Uranium Deposits

open access: yesYankuang ceshi, 2020
BACKGROUND Uranium mineral dating has been difficult to ascertain in mineralization chronology. With the development of in situ U-Pb isotope dating technology, it is possible to directly date ore minerals (uranium minerals).
XIAO Zhi-bin   +6 more
doaj   +1 more source

Linking Sidescan Sonar Backscatter Intensity to Seafloor Sediment Grain Size Fractions: Insight from Dongluo Island

open access: yesJournal of Marine Science and Engineering
Accurate characterization of seafloor sediment properties is critical for marine engineering design, resource assessment, and environmental management. Sidescan sonar offers efficient wide-area mapping capabilities, yet establishing robust quantitative ...
Songyang Ma   +10 more
doaj   +1 more source

LA-ICP-MS Zircon U-Pb Dating and Geochemistry of Late Cretaceous Quartz Diorite in the Nuri Cu-Mo-W Deposit, South Tibet

open access: yesYankuang ceshi, 2015
The Nuri deposit is located at the south margin of the Gangdese metallogenic belt in Tibet. Its mineralization age revealed by Re-Os dating of molybdenite is 23 Ma, which is consistent with that of the Mingze and Chengba deposits.
DONG Sui-liang   +5 more
doaj   +1 more source

Determination of 24 Organochlorine Pesticides and Pyrethroids in Complex Matrix Soils by Comprehensive Two-dimensional Gas Chromatography with Micro-electron Capture Detector

open access: yesYankuang ceshi, 2020
BACKGROUND Currently the analysis methods of organochlorine pesticides and pyrethroids in environment samples are gas chromatography and gas chromatography-mass spectrometry (GC-MS).
SHI Lei   +6 more
doaj   +1 more source

Florida Geological Survey [PDF]

open access: yes
The Florida Geological Survey (FGS) homepage provides data, research materials and interpretations on aquifer systems, geologic frameworks, landforms, energy and non-energy mineral resources, and geologic hazards which which can be used to address issues

core   +2 more sources

Numerical simulation on the pressure distribution of hydraulic jet perforation tunnel in natural gas hydrate reservoirs

open access: yesScientific Reports
Hydrajet fracturing could be a promising technique for increasing hydrate production; however, the pressure distribution law inside the perforation tunnel must first be investigated.
Jiawei Zhou   +7 more
doaj   +1 more source

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