Results 21 to 30 of about 5,253,598 (403)

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

Journal 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, Lila Queiroz, Antonia Railine Costa Silva, Antonio Charles Oliveira, Camila Basto, Carlos Eduardo Oliveira, César Chaves, Cintia Maria Gaia da Silva, Cleber Alves, Daniel Miranda, Edney Palheta, Felipe Grandjean Costa, Felipe Lima, Francisco Rios, Ivan Marques, Jorge Laux, Marcelo Marinho   +16 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

Yankuang 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, HUANG Yong, LI Guang-ming, ZHANG Li, HUANG Han-xiao, ZHANG Hui   +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

Yankuang 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, SUN Yan-yan, SHEN Xiao-ming, LÜ Ai-juan, CAI Xiao-hu, LIU Jiao, SHEN Jia-lin   +6 more
doaj   +1 more source

Analytical procedures for 3D mapping at the Photogeological Laboratory of the Geological Survey of Denmark and Greenland

Geological Survey of Denmark and Greenland Bulletin, 2018
Photogrammetry is a classical remote sensing technique dating back to the 19th century that allows geologists to make three-dimensional observations in two-dimensional images using human stereopsis.
E. V. Sørensen, Mads Dueholm
semanticscholar   +1 more source

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

Yankuang 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, GENG Jian-zhen, TU Jia-run, ZHANG Ran, YE Li-juan, BI Jun-hui, ZHOU Hong-ying   +6 more
doaj   +1 more source

Geological survey techniques and carbon storage: Optimizing renewable energy site selection and carbon sequestration

Open Access Research Journal of Science and Technology
Geological survey techniques play a crucial role in optimizing site selection for renewable energy projects and identifying suitable locations for carbon storage to mitigate climate change.
Oloruntosin Tolulope Joel, Vincent Ugochukwu Oguanobi   +1 more
semanticscholar   +1 more source

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

Journal 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, Bin Li, Peng Wan, Chengfu Wei, Zhijian Chen, Ruikeng Li, Zhenqiang Zhao, Chi Chen, Jiangping Yang, Jun Tu, Mingming Wen   +10 more
doaj   +1 more source

Florida Geological Survey [PDF]

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

Scientific 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, Kaixiang Shen, Wenwei Xie, Yanjiang Yu, Yingsheng Wang, Bo Ning, Kewei Zhang, Haoyu Yu   +7 more
doaj   +1 more source

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

Advanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida, Yanjie Wang, Thais A. Rodrigues, Paulo H. H. Nunes, Vagner R. de Mendonça, Paulo H. E. Falsetti, Leticia V. Savazi, Tao He, Alexandra V. Bardakova, Aida V. Rudakova, Jie Tian, Alexei V. Emeline, Osmando F. Lopes, Antonio Otavio T. Patrocínio, Jia Hong Pan, Caue Ribeiro, Detlef W. Bahnemann   +16 more
wiley   +1 more source