Results 101 to 110 of about 63,426 (314)

A Late Paleozoic Hydrothermal Gold Mineralization Event in the Northern Margin of the North China Craton: Evidence of In Situ Apatite U‐Pb Dating and Hg Isotope Tracing of the Giant Hadamengou Gold Deposit

Geochemistry, Geophysics, Geosystems
The northern margin of the North China Craton (NCC) hosts large numbers of hydrothermal gold deposits, with mineralization ages ranging from the Paleozoic to Mesozoic eras.
Tingting Xiao, Deyou Sun, Cheng Xu, Zhendong Tian, Anbo Luo, Changzhou Deng, Runsheng Yin   +6 more
doaj   +1 more source

The Geologic Features of the Occurrence of Copper in North America [PDF]

, 1933
Copper is of such widespread natural occurrence in North America and there are so few metal-mining districts that have not contributed to its production that it is obviously necessary in any brief general treatment of the geology of the copper deposits ...
Ransome, F. L.
core  

Selenium and molybdenum enrichment in uranium roll-front deposits of Wyoming and Colorado, USA [PDF]

, 2017
Acknowledgements The authors wish to thank Cal VanHolland, Jim Bonner and John Cooper of Ur-Energy (Casper, Wyoming) for their assistance with sampling, data provision and feedback.
Bullock, Liam A., Parnell, John
core   +1 more source

Start, Stop, Rewind, Repeat—Cyclic Exposure of Adipose Stromal Cells‐derived Cartilage Organoids to Chondrogenic and Proliferative Cues to Achieve Scaled‐up and Customizable Bone Formation by Endochondral Ossification

Advanced Healthcare Materials, EarlyView.
This study exploits the plasticity of ASCs‐derived cartilage organoids which generate a perichondrial layer of MSCs when exposed to cyclic chondrogenic/proliferative cues. Using these organoids as building blocks, we develop (i) Phalange Shaped Tissue Engineered Cartilage (Pa‐TECs), recapitulating endochondral ossification suitable for the treatment of
Pablo Pfister, Emilien Lhospice, Andrés García‐García, Robert Paillaud, Sebastian Jung, Romain Schaller, Elisabeth A. Kappos, Claude Jaquiéry, Tarek Ismail, Dirk J. Schaefer, Michael de Wild, Ivan Martin, Alexandre Kaempfen, Arnaud Scherberich, Adrien Moya   +14 more
wiley   +1 more source

Sm-Nd isochron age of the calcite from shewushan carlin-type gold deposit in the middle-lower yangtze metallogenic belt, eastern China

Frontiers in Earth Science
The Shewushan gold deposit, situated in the western extension of Edongnan, marks the westernmost point of the Middle-Lower Yangtze Metallogenic Belt, is an important iron and copper mineralization area in the Middle-Lower Yangtze Metallogenic Belt (MLYB).
Dongyong Lin, Rongke Xu, Xin Chen, Pengjie Cai, Shunli Zheng, Junzhen Yu, Jia Liu, Wenyang Du, Minfang Wang, Xingying Xu   +9 more
doaj   +1 more source

Prediction of gold mineralization zones using spatial techniques and geophysical data: A case study of the Josephine prospecting licence, NW Ghana. [PDF]

Heliyon, 2023
Forson ED, Amponsah PO.
europepmc   +1 more source

Interpretasi Sebaran Mineralisasi Logam Emas Berdasarkan Nilai Resistivity Menggunakan Metode Geolistrik Konfigurasi Wenner [PDF]

, 2014
The limitation of data and information about distribution of gold mineralization based on the value of resistivity in the hosted rock on WIUP exploration PT.
Ilyas, A. (Asran), Malik, M. (Maulana), Nur, I. (Irzal)   +2 more
core  

Earth's middle age [PDF]

, 2014
This research was funded through Natural Environment Research Council (grant NE/J021822/1) and the APC was paid through the RCUK OA block grant.Earth's middle age, extending from 1.7 to 0.75 Ga, was characterized by environmental, evolutionary, and ...
Cawood, Peter Anthony, Hawkesworth, Chris   +1 more
core   +1 more source

Secondary gold mineralization in the Amani Placer Gold Deposit, Tanzania

Ore Geology Reviews, 2019
Abstract The Amani Placer Gold Deposit (APGD) is located in a braided river valley in southwestern Tanzania and is characterised by large gold nuggets with anomalously fine macroscopic textural features as well as significant levels of silver depletion (i.e., high fineness gold) in the nugget rim.
Stephan C. Dunn, Bjorn P. von der Heyden, Abraham Rozendaal, Rikard Taljaard   +3 more
openaire   +1 more source

3D‐Printed Titanium Implants with Bioactive Peptide‐Polysaccharide Scaffolds for Personalized Bone Reconstruction

Advanced Healthcare Materials, EarlyView.
Porous 3D‐printed titanium implants are made bioactive by integration with a supramolecular peptide‐hyaluronic acid nanofibrillar scaffold, without the addition of exogenous cells or growth factors. Uniform filling of the implant architecture promotes vascularized, spatially homogeneous bone regeneration, significantly enhancing osteogenesis throughout
Noam Rattner, Vladimir Perlis, Eran Golden, Ariel Pokhojaev, Rachel Sarig, Itzhak Binderman, Michal Halperin‐Sternfeld, Solomon Dadia, Lihi Adler‐Abramovich   +8 more
wiley   +1 more source