Results 1 to 10 of about 75,440 (306)

Features of the Hydrosulfate Method for Processing Alumina-Containing Raw Materials in a Closed Reagent Cycle

open access: yesApplied Sciences, 2022
The decrease in the availability of high-quality bauxites makes the processing of high-silica raw materials inevitable, and in this regard, it is necessary to develop acid–salt methods suitable for these ores. The purpose of the work was to study various
Ruslan Kh. Khamizov   +2 more
doaj   +1 more source

Effects of major and trace elements from the El Kahfa ring complex on fish: Geological, physicochemical, and biological approaches

open access: yesFrontiers in Environmental Science, 2023
The alkaline rocks are known for enriching rare lithophilic elements, including lithium, uranium, and tin, which negatively impact aquatic life. This study offers an intensive investigation of the influence of alkaline rocks on Nile Tilapia (Oreochromis ...
Eman Saad   +5 more
doaj   +1 more source

GEOCHEMICAL FEATURES OF DIKE AILLIKITES AND ALKALINE ROCKS OF THE BOLSHETAGNINSKY MASSIF (URIK-IYA GRABEN, EAST SAYAN REGION)

open access: yesГеодинамика и тектонофизика, 2022
The ICP-MS determinations have been made on microelement content of ~650–640 Ma ultramafic lamprophyre-aillikite dikes and alkaline silicate rocks and carbonatites from the Bolshetagninsky ijolite-syenite massif, spatially overlapped in the northern Urik-
V. B. Savelieva   +3 more
doaj   +1 more source

Geology, petrography, alteration, and geochemistry of the Shahrab igneous rock, Central Iran

open access: yesGeology, Ecology, and Landscapes, 2021
Eocene to Quaternary calc-alkaline volcanic and intrusive rocks are exposed in Shahrab area in the Urumieh-Dokhtar magmatic belt in the Central Iran structural zone.
Kaveh Pazand   +2 more
doaj   +1 more source

Petrochemistry of granitic rocks in Tha Pai area, Mae Hi sub-district, Pai district, Mae Hong Son province, Northern Thailand [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2022
Granitic rocks in the Ban Tha Pai area, Mae Hi sub-district, Pai district, Mae Hong Son province, are located in the western line of the Central Granitic Belt in northern Thailand.
Patcharin Kosuwan Jundee   +3 more
doaj   +1 more source

Metagabbros, metasyenites and related rocks in the Outokumpu assemblage, east Finland [PDF]

open access: yesBulletin of the Geological Society of Finland, 1992
A diverse group of minor intrusive rocks in the early Proterozoic Outokumpu assemblage of eastern Finland include metagabbro, hornblendite, amphibolite, pyroxenite, syenite and chloritized dykes.
A.F. Park
doaj   +1 more source

A review of mineral assemblages of agpaitic rocks from the Poços de Caldas alkaline massif, southeastern Brazil

open access: yesBrazilian Journal of Geology, 2023
This study revises the early-magmatic, late-magmatic, and hydrothermal mineral assemblages occurring in rocks of agpaitic affinity, mainly represented by nepheline syenites and phonolites, from the Poços de Caldas alkaline massif.
Celso de Barros Gomes   +2 more
doaj   +1 more source

Petrogenisis of Mafic- intermediate Magmatism, East of Sanandaj; A New approach with careful monitoring of geochemical evidences [PDF]

open access: yesپترولوژی, 2019
The East Sanadaj magmatic rocks of the northern Sanandaj-Sirjan Zone, part of Zagros Orogen, comprise several intrusive bodies that were generated during northeastward subduction of Neo-tethys beneath the Iranian sector of the Eurasian plate.
Sanaz Yajam
doaj   +1 more source

Sr-Nd isotope geochemistry of the early Precambrian sub-alkaline mafic igneous rocks from the southern Bastar craton, Central India [PDF]

open access: yes, 2009
Sr–Nd isotope data are reported for the early Precambrian sub-alkaline mafic igneous rocks of the southern Bastar craton, central India. These mafic rocks are mostly dykes but there are a few volcanic exposures.
BL Weaver   +39 more
core   +1 more source

Tertiary-Quaternary subduction processes and related magmatism in the Alpine-Mediterranean region [PDF]

open access: yes, 2006
During Tertiary to Quaternary times, convergence between Eurasia and Africa resulted in a variety of collisional orogens and different styles of subduction in the Alpine-Mediterranean region.
Downes, Hilary   +2 more
core   +1 more source

Home - About - Disclaimer - Privacy