Results 11 to 20 of about 29,967 (248)

Petrophysical and mechanical properties of the Struganik limestone (Vardar zone, Western Serbia) [PDF]

open access: yesGeološki Anali Balkanskoga Poluostrva, 2011
The Struganik limestone has been increasingly popular in recent years for interior and exterior building applications, due to easy workability, low cost and multi purpose suitability.
Gajić Violeta   +3 more
doaj   +1 more source

Meso-Cenozoic Brazilian Offshore Magmatism: Geochemistry, Petrology, and Tectonics

open access: yes, 2021
Meso-Cenozoic Brazilian Offshore Magmatism: Geochemistry, Petrology and Tectonics presents detailed studies from different points-of-view on the geological—particularly magmatic—evolution of the Brazilian and South Atlantic Ocean offshore areas.
Santos, Anderson Costa dos   +1 more
core   +1 more source

LATE-DEVONIAN SAKHARA DUNITE-CLINOPIROXENITE-GABBRO COMPLEX (EAST MAGNITOGORSK ZONE, SOUTH URALS): PETROLOGICAL-MINERALOGICAL FEATURES AND GEODYNAMIC SETTING [PDF]

open access: yesМинералогия, 2021
The relevance of the work is caused by necessary regional analysis of magmatic evolution of the East Magnitogorsk belt and refinement of ideas on geodynamics of the South Urals.
T.N. Surin
doaj   +1 more source

Improving crystallization and eruption age estimation using U-Th disequilibrium dating of young volcanic zircon [PDF]

open access: yesGeochronology
Quantifying timescales and establishing robust eruption chronologies is critical for understanding the evolution and hazards of volcanic systems. U-Th disequilibrium dating on zircon is especially valuable for young and active systems (< 300 ka ...
Z. Moser   +6 more
doaj   +1 more source

Controls on zircon age distributions in volcanic, porphyry and plutonic rocks [PDF]

open access: yesGeochronology
The distribution of zircon crystallisation ages in igneous rocks has been proposed to provide insights into the dynamics of underlying magma reservoirs.
C. Nathwani   +5 more
doaj   +1 more source

Temperatures in ambient mantle and plumes: Constraints from basalts, picrites, and komatiites [PDF]

open access: yes, 2006
Several methods have been developed to assess the thermal state of the mantle below oceanic ridges, islands, and plateaus, on the basis of the petrology and geochemistry of erupted lavas. One leads to the conclusion that mantle potential temperature (i.e.
Lesher, C. M.   +25 more
core   +1 more source

Post-eruptive mobility of lithium in volcanic rocks

open access: yesNature Communications, 2018
Lithium, an increasingly economically important element, is also used to trace the cycling of materials through the Earth system. Here the authors show that post-eruptive processes such as degassing and groundmass crystallisation control the inventory of
B. S. Ellis   +7 more
doaj   +1 more source

Magma Genesis and Arc Evolution at the Indochina Terrane Subduction: Petrological and Geochemical Constraints From the Volcanic Rocks in Wang Nam Khiao Area, Nakhon Ratchasima, Thailand

open access: yesFrontiers in Earth Science, 2020
Volcanic rocks and associated dikes have been exposed in Wang Nam Khiao area, Nakhon Ratchasima Province, northeastern Thailand where complex tectonic setting was reported.
Vanachawan Hunyek   +2 more
doaj   +1 more source

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

open access: yes, 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
James, D.   +8 more
core   +1 more source

Lineaaristen geokemiallisten trendien mallinnus Magmakammiosimulaattorilla: esimerkkitutkimus Jindabyne-graniiteista, Lachlan Fold Belt, Australia [PDF]

open access: yes, 2022
Understanding the origins of major and trace element variations and the isotopic character of granite samples in terms of sources and magmatic processes is, arguably, the core of granite petrology.
Heinonen, Jussi S., Iles, Kieran A.
core   +1 more source

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