Results 91 to 100 of about 56,332 (307)

Bedrock geology of Carroll County, Illinois [PDF]

, 1997
Ope
McGarry, Christopher S.
core  

Mineralogical, textural, structural and geochemical aspects of Nakhlak lead mine, Isfahan

Journal of Economic Geology, 2011
Nakhlak lead mine is located at the Nakhlak mountain 55 km NE of Anarak town in Isfahan province. The mineralogy is simple; galena and barite are the main primary minerals and cerussite is the main secondary mineral.
Mohammad Ali Jazi, Jamshid Shahabpour
doaj   +1 more source

3-Mercaptopropionic/3-Mercaptoisobutyric Acids Used as Novel Selective Depressants for Improved Flotation of Chalcopyrite from Galena [PDF]

, 2020
Ruohua Liu, Rui Xu, Li Wang, Feng Jiang, Jiao Jin, Zhiyong Gao, Honghu Tang, Wei Sun   +7 more
openalex   +1 more source

Organic Hop Variety Trial: Results from Year Five [PDF]

, 2015
Hops production continues to increase throughout the the Northeast. While hops were historically grown in the Northeast, they have not been commercially produced in this region for over a hundred years.
Calderwood, Lily, Cubins, Julija, Cummings, Erica, Darby, Heather, Gupta, Abha, Lewins, Scott, Post, Julian Post, Ziegler, Sara   +7 more
core   +1 more source

A short historical overview on the use of lead [PDF]

, 2018
This historical introduction to the use of lead in art and technology was originally written to give context to lead conservation studies by the authors.
Adriaens, Mieke, De Keersmaecker, Michel, Dowsett, Mark   +2 more
core   +1 more source

Determination of Optimum Parameters for Flotation of Galena: Effect of Chain Length and Chain Structure of Xanthates on Flotation Recovery

ACS Omega, 2019
The structure of the xanthates’ hydrocarbon (C–H) chain is one of the major factors which affect flotation recovery. The effectiveness and the collecting power of xanthates increase with increasing chain length and vary depending on the chain structure ...
Savaş Özün, Gülşah Ergen
semanticscholar   +1 more source

Research Status and Prospect of Flotation Separation of a Copper-lead Sulfide Ore

Kuangchan zonghe liyong
The separation of copper and lead is one of the technical difficulties in complex sulfide ore beneficiation. On the basis of analyzing the general situation of copper-lead sulfide ore resources and the characteristics of mineral composition, this paper ...
Ruikang WANG, Zhuoyue LAN, Di YANG, Xiong TONG   +3 more
doaj   +1 more source

Stratabound arsenic and vein antimony mineralisation in Silurian greywackes at Glendinning, south Scotland [PDF]

, 1983
Stratiform and disseminated pyrite-arsenopyrite concentrations are overprinted by fracturecontrolled polymetallic mineralisation including stibnite through at least tens of metres of Silurian sediments at Glendinning, near Langholm.
Gallagher, M.J., Hills, M.G., Jones, R.C., Kemp, A.E.S., Parker, M.E., Peachey, D., Rollin, K.E., Skilton, B.R.H., Smith, R.T., Stone, P., Vickers, B.P.   +10 more
core  

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  

New insights into ice accumulation at Galena Creek Rock Glacier from radar imaging of its internal structure

Journal of Glaciology, 2019
The ice-cored Galena Creek Rock Glacier, Wyoming, USA, has been the subject of a number of studies that sought to determine the origin of its ice. We present new observations of the rock glacier's internal structure from ground-penetrating radar to ...
E. Petersen, J. Levy, J. Holt, C. Stuurman   +3 more
semanticscholar   +1 more source