Results 1 to 10 of about 232 (180)

Geomorphological changes in young soils with sparse vegetation: Mathematical modeling and numerical simulation [PDF]

open access: yesHeliyon, 2023
This article presents an improved mathematical model and numerical simulation for weathering of large areas with complex topography. It uses the equations of momentum, temperature, and humidity in turbulent air and for heat and water infiltration into ...
Carlos Zambra   +3 more
doaj   +2 more sources

The pristine precursor of Andean-type magmatism preserved in magma mingling zones [PDF]

open access: yesScientific Reports
Intermediate magma compositions have been postulated to be parental to Andean-type magmatism in the recent years. Geochemical and experimental methods have allowed the modelling of a hypothetical parental composition that accounts for the major element ...
Daniel Gómez-Frutos   +2 more
doaj   +2 more sources

Magmatic constraints on localization of natural stone deposits in the Vehmaa rapakivi granite batholith, southwestern Finland [PDF]

open access: yesBulletin of the Geological Society of Finland, 2011
The 1580–1570 Ma old Vehmaa rapakivi granite batholith was studied with the aim to define the geological constraints for localization of natural stone deposits in the batholith.
O. Selonen   +3 more
doaj   +1 more source

The Orivesi granite batholith, Southern Central Finland - characteristics and emplacement [PDF]

open access: yesBulletin of the Geological Society of Finland, 1996
The Orivesi granite batholith is situated in an E-W trending belt of granite intrusions along the southern margin of the Central Finland Granitoid Complex (CFGC).
O. Selonen, C. Ehlers
doaj   +1 more source

Geochronology of the Suomenniemi rapakivi granite complex revisited: Implications of point-specific errors on zircon U-Pb and refined λ87 on whole-rock Rb-Sr [PDF]

open access: yesBulletin of the Geological Society of Finland, 2015
Multi-grain isotope dilution and secondary ion microprobe zircon U-Pb as well as wholerock Rb-Sr isotope dilution data on the late Paleoproterozoic Suomenniemi rapakivi granite complex (exposed on the northern flank of the Wiborg batholith in ...
O.T. Rämö, I. Mänttäri
doaj   +1 more source

Gravity data on the Central Pyrenees: a step forward to help a better understanding of the Pyrenean structures

open access: yesJournal of Maps, 2021
In this work, we present new Bouguer and residual Bouguer anomaly maps of the Central Pyrenees calculated from 3590 stations, of which 1141 are new observations acquired from surveys performed between 2018 and 2019.
Conxi Ayala   +12 more
doaj   +1 more source

Magmatic evolution of the La Huerta Plutonic Complex, Jalisco: A 80–70 Ma record of arc magmatism along the Mexican Cordillera

open access: yesRevista Mexicana de Ciencias Geológicas, 2023
The La Huerta Plutonic Complex (LHPC) forms part of the Cretaceous Mexican Cordillera, located between the well-documented ~80 Ma Puerto Vallarta Batholith (PVB) and the ~65 Ma Manzanillo Plutonic Complex (MPC).
Guillermo A. Ortiz-Joya   +5 more
doaj   +1 more source

The Paleoproterozoic Nattanen-type granites in northern Finland and vicinity - a postcollisional oxidized A-type suite [PDF]

open access: yesBulletin of the Geological Society of Finland, 2009
The ~1.8 Ga Nattanen-type granites in the Finnish Lapland and western Kola Peninsula are found as several relatively small, high-level, discordant plutons that are easily discernible as weak maxima on aeromagnetic maps.
E. Heilimo   +6 more
doaj   +1 more source

Using computer-aided image processing to estimate chemical composition of igneous rocks: A potential tool for large-scale compositional mapping

open access: yesSolid Earth Sciences, 2021
Digital cameras, particularly on smartphones, have led to the proliferation of amateur photographers. Of interest here is the use of smartphone cameras to conduct rapid, low-cost compositional mapping of geologic bedrock, such as plutons and batholiths ...
Julin Zhang   +2 more
doaj   +1 more source

Confronting Solid‐State Shear Bias: Magmatic Fabric Contribution to Crustal Seismic Anisotropy

open access: yesGeophysical Research Letters, 2023
Seismic anisotropy is controlled by aligned rock‐forming minerals, which most studies attribute to solid‐state shear with less consideration for magmatic fabric in plutonic rocks (rigid‐body rotation of crystals in the presence of melt).
Michael G. Frothingham   +4 more
doaj   +1 more source

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