Results 41 to 50 of about 12,817 (165)
Lichens of abandoned zinc-lead mines
Acta Mycologica, 2013 A list of lichens from areas of zinc-lead ores in Southern Poland and a review of the characteristic lichen biota of these sites is provided. In spite of the devastated and heavy metal contaminated environment, a highly diverse epigeic and epilithic ...
Urszula Bielczyk +2 more
doaj +1 more source
Geophysical Prospecting, Volume 74, Issue 7, September 2026.ABSTRACT Time‐domain electromagnetics (TEM) is a valuable tool for exploring seafloor hydrothermal deposits, which are characterized by variations in resistivity and chargeability. Several surveys using the Waseda integrated seafloor time‐domain electromagnetics (WISTEM) have been conducted.
Masayuki Motoori +4 more
wiley +1 more source
Study of the thermal conductivity of PbS, CuFeS2, ZnS
Конденсированные среды и межфазные границы, 2020 It is necessary to know the values of the thermal conductivity coeffi cient of a semiconductor material to assess the possibility of its application as a thermoelectric. The thermal conductivity of natural minerals of galena (PbS), chalcopyrite (CuFeS2),
Pavel A. Popov +5 more
doaj +1 more source
Floatation separation of galena, sphalerite, and pyrrhotite by combined depressant CCSL
工程科学学报, 2017 The flotation separation of galena, sphalerite, and pyrrhotite was investigated with CCSL as a depressant. Flotation test results show that galena and sphalerite can float but pyrrhotite can barely float with CCSL as a depressant.
BAI An-ping, SONG Yong-sheng, ZHOU He
doaj +1 more source
Vestnik MGTU, 2020 Multiphase fine aggregates of galena, pyrrhotite, freibergite, pyrargyrite, diaphorite, fizelyite, uchucchacuaite, ullmanite, and some other minerals are found in the ores of the Oleninskoe gold deposit in the Kolmozero-Voronya greenstone belt (Kola ...
Kalinin A. A., Savchenko Y. E.
doaj +1 more source
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 8, August 2026.Abstract The Neogene mineralized region of the Colline Metallifere in southern Tuscany (Italy) provides a natural laboratory to investigate feedback between fluid–rock interaction, structurally controlled fluid flow, and hydrothermal ore mineralization.
Barbara Marchesini +12 more
wiley +1 more source
Enhanced radiation shielding with galena concrete [PDF]
Nuclear Technology and Radiation Protection, 2015 A new concrete, containing galena mineral, with enhanced shielding properties for gamma sources is developed. To achieve optimized shielding properties, ten types of galena concrete containing different mixing ratios and a reference normal ...
Hadad Kamal +2 more
doaj +1 more source
Journal of Geophysical Research: Earth Surface, Volume 131, Issue 8, August 2026.Abstract Despite the prevalence of rock glaciers in mountain environments, their ice volumes are poorly constrained. Rock glaciers persist in settings unable to support glaciers. They act as climate resilient water stores and refugia for cold‐adapted species while also posing a hazard to alpine communities. Imaging the entire internal structure of rock
Bronson Cvijanovich +6 more
wiley +1 more source
JAWRA Journal of the American Water Resources Association, Volume 62, Issue 4, August 2026.ABSTRACT This study demonstrates that flow resistance in rivers, quantified via calibration of a modified Manning's equation, can inform its estimation from channel hydrometric information available from regional or global datasets for a limited set (N = 14) of rigorously calibrated river reaches in Alaska and with less certainty in a large set (N ...
David M. Bjerklie +6 more
wiley +1 more source
, 2003 Houses and utility poles along street.Tiff file: 2680x3570 pixels, 27.4 Mb; Display: jpeg, 600 x 799 pixels ...
Father Edward Catich
core +1 more source