Results 91 to 100 of about 179,064 (175)

New orogenic type gold occurrences in the Uyanga ore knot (Central Mongolia)

open access: yesMongolian Geoscientist, 2018
The Uyanga ore knot district of the Khangay metallogenic zone are hosted by the lower-middle Devonian volcanogenic-sedimentary Erdenetsogt formation.
Ariunbileg Sodov   +6 more
doaj   +1 more source

Linking biosurface reactivity and photosynthesis to investigate Sphagnum mosses as ecosystem engineers

open access: yesNew Phytologist, Volume 252, Issue 1, Page 69-86, October 2026.
Habit photographs of field‐collected and in vitro‐cultivated (c) Sphagnum spp. used for experiments. Summary Sphagnum mosses regulate peatland carbon storage, hydrology, nutrient cycling, and ecosystem functioning. However, the links among their surface chemistry, photosynthesis, responses to submersion and pH remain poorly understood.
Anna Di Palma   +8 more
wiley   +1 more source

Toxicological profile for antimony [PDF]

open access: yes
Includes bibliographical references (p.

core  

Shirokinsky ore cluster (eastern Transmbaikal): formation conditions, petrochemistry of rocks and ores, association between mineralization and magmatism

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов, 2017
Relevance of the work is in revealing conditions of formation of rocks and ores from the Shirokinsky ore cluster. The distinctive feature of the ore cluster is the high gold mineralization of its polymetallic ores.
Bair Namzhilovich Abramov   +3 more
doaj   +2 more sources

Laboratory investigation of valuable minerals concentration from poly-metallic wolfram-antimony ore deposit "osanica"

open access: yes, 2006
This work presents the results of complex laboratory investigation carried out in order to determine the possibilities to produce quality concentrates of wolfram and antimony minerals out of polymetallic wolfram-antimony ore from Osanica deposit, near ...
Bartulović, Zoran   +3 more
core  

Determination of Antimony and 14 Trace Elements in Antimony Ores by X-ray Fluorescence Spectrometry with Fusion Sample Preparation

open access: yesYankuang ceshi, 2014
The analysis of antimony ores usually uses acid decomposition and an alkali fusion system, followed by the volumetric method after solvent extraction. Each component employs various analytical methods such as capacity, Atomic Absorption Spectrometry and ...
LIU Jiang-bin   +7 more
doaj   +2 more sources

Virgil Hicks instructing students, 1930's

open access: yes, 1930
Virgil Hicks instructs a group of boys in the 1930's.[Front] Boychuk-photo.; Pacific University Forest Grove, ORE.; Pacific University Library Forest Grove, Oregon; Virgil Hicks Don't use - ?; Students and alumni G-H; Pacificana; Boychuk Studio 1015 S. W.
Boychuk Studio, Portland, ORE., photographer
core   +1 more source

Man stoking a furnace, 1920's

open access: yes, 1920
A man identified as Virgil Hicks feeds wood into a furnace in the 1920's at Pacific University.[Front] Boychuk-Photo; [Back] Pacificana Hicks,; Hicks 4; Boychuk Studio 1015 S. W.
Boychuk Studio, Portland, ORE., photographer
core   +1 more source

Comparison of the genesis of typical antimony deposits in the Xiangzhong Antimony Ore Belt, South China

open access: yesOre Geology Reviews
sponsorship: This research is financially supported by the National Science Foundation of China (42372105, 42073001) ; the Hunan Provincial Natural Science Foundation Joint Fund Project (2025JJ80403) ; the 2024 Department-Province Cooperation Project of the Ministry of Nat-ural Resources, China (2024ZRBSHZ141) ; the Major Scientific and Technological ...
Kang, Lin-Yan   +5 more
openaire   +2 more sources

Discussion on the ore-controlling factors in the Longlin–Xilin Sb–Au mining district of western Guangxi, South China

open access: yesDizhi lixue xuebao
Objective  Sb deposits are characterized by simple mineral assemblage. The ore-forming ages, sources of ore-forming materials, and genesis of Sb deposits are controversial owing to the absence of suitable minerals for analysis.
LIU Xiaohu   +7 more
doaj   +1 more source

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