Results 1 to 10 of about 30,947 (278)

Changes of Soil Properties along the Altitudinal Gradients in Subarctic Mountain Landscapes of Putorana Plateau, Central Siberia

open access: yesLand, 2022
Changes of soil properties along elevational gradients were studied in a less accessible and explored forest-tundra ecotone in the NW part of Central Siberia.
Erika Gömöryová   +4 more
doaj   +1 more source

Pd/Pt IMBALANCE IN LAVAS AND INTRUSIONS OF THE NORILSK-TALNAKH ORE REGION

open access: yesГеодинамика и тектонофизика, 2021
The paper considers the Pd/Pt ratio in the ores of the Norilsk-1 and Talnakh deposits associated with the Permian-Triassic intrusions of the Norilsk type in comparison with that in the lavas of the same age in the Norilsk region.
T. V. Dudkin   +3 more
doaj   +1 more source

Geomorphology, Mineralogy, and Geochronology of Mare Basalts and Non-Mare Materials around the Lunar Crisium Basin

open access: yesRemote Sensing, 2021
The Nectarian-aged Crisium basin exhibits an extremely thin crust and complicated lunar geological history. This large multi-ring impact basin is characterized by prolonged lunar volcanism ranging from the Imbrian age to the Eratosthenian period, forming
Xuejin Lu   +5 more
doaj   +1 more source

HIGH-PRESSURE METAMORPHIC ROCKS OF THE CHARA OPHIOLITE BELT (CAOB): AGE AND EXHUMATION CONDITIONS

open access: yesГеодинамика и тектонофизика, 2022
A critical element in the construction of tectonic models of exhumation of basalts that have undergone high-pressure metamorphism is the diagnosis of synchronicity and the genetic relationship between deformations and high-pressure metamorphic changes ...
M. S. Zdrokova   +2 more
doaj   +1 more source

Dynamic evolution of changbaishan volcanism in Northeast China illuminated by machine learning

open access: yesFrontiers in Earth Science, 2023
Previous studies propose that there is a mantle upwelling that generated the Cenozoic basalts in Changbaishan. However, the dominant source and mechanism of the mantle upwelling remains highly debated.
Yong Zhao   +4 more
doaj   +1 more source

The Salittu Formation in southwestern Finland, part II: Picritic-basaltic volcanism in mature arc environment [PDF]

open access: yesBulletin of the Geological Society of Finland, 2017
Svecofennian orogen that contain ultramafic rocks. New samples were collected from the picritic and basaltic rocks as well as spatially associated gabbroic rocks, and their major and trace element compositions are presented and discussed here.
M. Nironen
doaj   +1 more source

Field work on the northern slopes of Kronotsky volcano in July–August 2023

open access: yesВестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле, 2023
In July-August 2023, field work was carried out on the northern slopes of Kronotsky volcano in the territory of the Kronotsky State Reserve, which is rarely visited by researchers.
N.V. Gorbach   +2 more
doaj   +1 more source

Petrological and geochemical characteristics of flood and shield basalts from Kesem-Megezez section, northwestern Ethiopian Plateau: Implication for their mantle source variations

open access: yesHeliyon, 2023
The Kesem-Megezez Section is located on the western escarpment of the main Ethiopian rift, central Ethiopia, part of the northwestern Ethiopia plateau, and hosts both flood basalts (Kesem Oligocene basalts) and shield volcano basalts (Megezez Miocene ...
Birhane Girum   +2 more
doaj   +1 more source

Geochemistry of basalts in unravelling the mantle processes and crustal evolution: Insights from the greenstone belts of western Dharwar Craton

open access: yesGeosystems and Geoenvironment, 2022
Basalts are an integral part of all the greenstone belts of Dharwar Craton which played a vital role in the thermo-tectonic evolution and mantle processes during the Archean time.
C. Manikyamba   +4 more
doaj   +1 more source

Rochas basálticas para rejuvenescer solos intemperizados

open access: yesRevista Liberato, 2021
Brazil is a country with huge geodiversity, which ensures it a distinguished position in the international mineral sector. Within this vast heritage, some rocks, besides being sources of various types of ores, are suitable for use as fertilizers.
Suzi Huff Theodoro   +3 more
doaj   +1 more source

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