Results 41 to 50 of about 326,163 (350)

MICROINCLUSIONS OF PGM MINERALS IN ANCIENT GOLD PRODUCTS: OCCURRENCE, COMPOSITION, ALTERATION [PDF]

Минералогия, 2015
The PGM microinclusions in ancient gold products from the Urals, Siberia, Azov region and Turkmenistan are compared with similar inclusions from the Middle East artifacts. Microinclusions were found in the archaeological sites, which are located close to
V.V. Zaykov, P.K. Dashkovsky, E.V. Zaykova, V.A. Kotlyarov, A.M. Yuminov, I.A. Blinov   +5 more
doaj  

Ultramafic xenoliths from the Bearpaw Mountains, Montana, USA: evidence for multiple metasomatic events in the lithospheric mantle beneath the Wyoming craton [PDF]

, 2004
Ultramafic xenoliths in Eocene minettes of the Bearpaw Mountains volcanic field (Montana, USA), derived from the lower lithosphere of the Wyoming craton, can be divided based on textural criteria into tectonite and cumulate groups. The tectonites consist
Abidin, M.S.Z., Codemard, C.A., Dupriez, P., Farrell, C., Jeong, Y., Ji, J., Maran, J.-N., Nilsson, J., Payne, D.N., Richardson, D.J., Sahu, J.K., Yoo, S.   +11 more
core   +2 more sources

Advanced Ceramics in Aerospace and Defense: The Interrelationship between Traditional and Additive Manufacturing Approaches

Advanced Materials Technologies, EarlyView.
Additive manufacturing revolutionizes production by enabling on‐demand, customized, and sustainable manufacturing with streamlined supply chains. While metal and polymer AM are well‐established, advanced ceramic AM is rapidly emerging, overcoming traditional material challenges.
Kateryna Oleksandrivna Shvydyuk, Senentxu Lanceros‐Mendez, Abílio Pereira Silva   +2 more
wiley   +1 more source

CHEMICAL COMPOSITION AND TRACE ELEMENT PATTERN OF A PYRRHOTITE-PYRITE NODULE FROM THE DERGAMYCH CO-BEARING MASSIVE SULFIDE DEPOSIT, SOUTH URALS [PDF]

Минералогия, 2018
Distribution of trace elements of pyrrhotite-pyrite nodule from sulfide-serpentinite «gravelites» of the Dergamysh Co-bearing massive sulfide deposit is studied using LA ICP MS method. The nodule is zonal with a central porous core composed of pyrrhotite
I.Yu. Melekestseva, V.V. Maslennikov, N.P. Safina, D.A. Artemyev   +3 more
doaj  

A review of volatiles in the Martian interior [PDF]

, 2016
Multiple observations from missions to Mars have revealed compelling evidence for a volatile-rich Martian crust. A leading theory contends that eruption of basaltic magmas was the ultimate mechanism of transfer of volatiles from the mantle toward the ...
Baratoux, David, Beaty, David, Breuer, Doris, Farcy, Benjamin J., Filiberto, Justin, Grott, Matthias, Jones, John H., Kiefer, Walter S., Mane, Prajkta, McCubbin, Francis M., Schwenzer, Susanne P.   +10 more
core   +1 more source

Long‐Term Active Rather than Passive Restoration Promotes Soil Organic Carbon Accumulation by Alleviating Microbial Nitrogen Limitation in an Extremely Degraded Alpine Grassland

Advanced Science, EarlyView.
Active restoration increases soil organic carbon stocks by reducing microbial nitrogen limitation. Nitrogen availability promotes particulate to mineral‐associated organic carbon conversion by reducing microbial carbon use efficiency. Passive restoration has no effect on soil organic carbon stocks.
Jinchao Gong, Feida Sun, Jingjing Wu, Shijie Zhou, Yue Xiu, Linlin Li, Tahmina Kausar, Zhouwen Ma, Jiqiong Zhou, Lin Liu, Yongxing Cui, Jordi Sardans, Josep Peñuelas, Ahmed Elrys, Ji Chen, Yanfu Bai   +15 more
wiley   +1 more source

MINERAL COMPOSITION OF SEDIMENTS OF TIDAL ZONE OF GUYANA, SOUTH AMERICA [PDF]

Минералогия, 2018
The mineral composition of the mud halo of the Guyana coast is studied. Terrigenous quartz and feldspars are totally dominant in pelitic sediments of the littoral zone accompanied by terrigenous and organic calcite, variable amount of kaolinite, hydrated
K.A. Novoselov, E.V. Belogub, E.E. Palenova, I.A. Blinov   +3 more
doaj  

A Modern Roman‐Inspired Concrete with Daytime Radiative Cooling Capacity

Advanced Science, EarlyView.
Coolcrete, inspired by ancient Roman concrete, is a new cementitious material with photonic properties enabling passive daytime radiative cooling. Made from quicklime and zeolites, it reduces cooling energy demand, lowers CO2 emissions, and may eliminate urban heat islands.
Jorge S. Dolado, Guido Goracci, Ghizlane Moutaoukil, Ridwan O. Agbaoye, Miguel Beruete, Alicia E. Torres‐García, Laura Carlosena, Achutha Prabhu, Jose A. Ibáñez, Nick Adams, Nicole van Lipzig, Karen Allacker   +11 more
wiley   +1 more source

MINERAL COMPOSITION OF PROCESSING WASTES OF TITANOMAGNETITE ORES FROM THE KUSA DEPOSIT (SOUTH URALS) [PDF]

Минералогия, 2016
The dumps of processing wastes (tales) of titanomagnetite ores from the Kusa deposit located in the southwestern margin of the settlement of Magnitka, Chelyabinst district (South Urals) began to form in 1948.
V.I. Popova, V.A. Popov, V.A. Muftakhov, V.A. Kotlyarov   +3 more
doaj  

Mineralogy of an active eolian sediment from the Namib dune, Gale crater, Mars

, 2017
The Mars Science Laboratory rover, Curiosity, is using a comprehensive scientific payload to explore rocks and soils in Gale crater, Mars. Recent investigations of the Bagnold Dune Field provided the first in situ assessment of an active dune on Mars ...
C. Achilles, R. Downs, D. Ming, E. Rampe, R. Morris, A. Treiman, S. Morrison, D. Blake, D. Vaniman, Ryan C. Ewing, S. Chipera, A. Yen, T. Bristow, B. Ehlmann, R. Gellert, R. Hazen, K. V. Fendrich, P. Craig, J. Grotzinger, D. D. Marais, Jack D. Farmer, P. Sarrazin, J. Morookian   +22 more
semanticscholar   +1 more source