Results 41 to 50 of about 2,204,508 (267)

BISMUTH MINERALS OF SULFIDE-MAGNETITE ORES FROM THE AKTASH DEPOSIT (WESTERN KARAMAZAR, TAJIKISTAN) [PDF]

open access: yesМинералогия, 2019
Bismuth mineralization is studied in sulfide-magnetite ores of the Aktash deposit in Western Karamazar (Northern Tajikistan), which is hosted in the Middle–Upper Paleozoic sedimentary and intrusive rocks.
U.A. Yatimov   +3 more
doaj   +1 more source

NEW DATA ON MINERALOGY OF THE SUGUR COPPER DEPOSIT, SOUTH URALS [PDF]

open access: yesМинералогия, 2022
The previous and new data on minerals and mineral assemblages of the Sugur copper deposit in the Sugur Mountains of South Urals are summarized. The ores of the deposit host abundant calcite, andradite, diopside, magnetite, chromite and serpentine ...
V.A. Popov   +2 more
doaj   +1 more source

Meadow steppe associations of South Urals

open access: yesVegetation of Russia, 2013
The syntaxonomical analysis of meadow steppe vegetation of the order Festucetalia valesiacae Br.-Bl. et Tx. ex Br.- Bl. 1950 (class Festuco-Brometea Br.-Bl. et Tx. Ex Soó 1947) and their petrophytic variants in the South Urals (within Bashkortostan Republic) is carried out.
S. M. Yamalov   +3 more
openaire   +1 more source

U-Th-He Geochronology of Pyrite from the Uzelga VMS Deposit (South Urals)—New Perspectives for Direct Dating of the Ore-Forming Processes

open access: yesMinerals, 2020
We report on the application of the U-Th-He method for the direct dating of pyrite and provide an original methodological approach for measurement of U, Th and He in single grains without loss of parent nuclides during thermal extraction of He.
O. Yakubovich   +4 more
semanticscholar   +1 more source

Assemblages of herb-dwelling spiders (Araneae) of various steppe types in Ukraine and the Central Chernozem region of Russia [PDF]

open access: yes, 2012
A total of 107 spider species from 15 families were recorded in the herbaceous vegetation of the steppe ecosystems of Ukraine and the Central Chernozem region of Russia. Araneidae, Thomisidae, Salticidae and Theridiidae were the most species-rich.
Polchaninova, Nina Y.
core   +2 more sources

MINERALOGY AND ORE FORMATION CONDITIONS OF THE NAILY GOLD DEPOSIT (SOUTH URALS) [PDF]

open access: yesМинералогия
The paper examines mineralogy of noble metals and ore formation conditions at the Naily gold deposit (South Urals), which is hosted in pyrite-bearing talc-carbonate, chlorite-quartz-carbonate and quartz-carbonate metasomatites after serpentinites and ...
A.D. Smirnitskaya   +5 more
doaj   +1 more source

INTRASPECIFIC PHENOTYPIC VARIATION OF COMMON JUNIPER IN CIS-URALS AND THE SOUTH URALS

open access: yesСибирский лесной журнал, 2016
Endogenous, individual and ecological-geographic variation of common juniper Juniperus communis L. in 10 coenopupulations in Cis-Urals and the South Urals by 17 quantitative morphological traits of generative and vegetative organswere studied. Endogenous variation of most traits of generative organs is characterized by a low and very low level ...
G. G. Farukshina, V. P. Putenikhin
openaire   +2 more sources

MINERALOGICAL-PETROGRAPHIC FEATURES OF SYENITIC MIGMATITES OF THE ILMENOGORSKY MIASKITE BLOCK (SOUTH URALS) [PDF]

open access: yesМинералогия, 2019
Syenitic migmatites of the contact of the Ilmenogorsky miaskite block are characterized by high (>500 ppm) contents of REEs, which are mainly hosted in fluorapatite and titanite of the leucosome.
А.B. Nemov   +3 more
doaj   +1 more source

MINERALOGY OF OXIDATION ZONE OF THE VOROVSKAYA YAMA ANCIENT COPPER MINE (SOUTH TRANSURALS) [PDF]

open access: yesМинералогия
The article considers the geological setting and mineralogy of oxidation zone of the Vorovskaya Yama copper occurrence (South Transurals), which was exploited in 17th–16th centuries BC by miners of the Alakul culture.
A.M. Yuminov   +6 more
doaj   +1 more source

Chemostratigraphy of Neoproterozoic carbonates: implications for 'blind dating' [PDF]

open access: yes, 2001
The delta C-13(carb) and Sr-87/Sr-86 secular variations in Neoproteozoic seawater have been used for the purpose of 'isotope stratigraphy' but there are a number of problems that can preclude its routine use.
Aharon P.   +55 more
core   +1 more source

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