Results 1 to 10 of about 7,065 (165)

The Relationship between the Slope Hill and Bedrock with Some Soil Properties [PDF]

open access: yesمجله آب و خاک, 2023
Introduction Changes in soil properties depend on factors such as climate, topography, landscape features, altitude, parent material, and vegetation. The quantity and quality of soils obtained from different rocks (igneous, sedimentary and metamorphic ...
M. Jafarian, A. Golkarian, H. Emami
doaj   +1 more source

Mineral chemistry and geothermobarometry of gabbroic dykes ‎of the Garmab Ophiolite sequence ‎‎(Northeast of Kamyaran)‎ [PDF]

open access: yesپترولوژی, 2018
The Garmab ophiolite complex, a part of the Ophiolite-Radiolithic zone of Kermanshah, is located in the northeast of Kamyaran. In view of the Iranian geo-structural zones, this complex is situated between the Sanandaj-Sirjan Zone and the Zagros thrust ...
shahryar Mahmoudi   +2 more
doaj   +1 more source

An Algorithm for Thermodynamic Parameter Optimization: Application to the Martian Mantle

open access: yesGeochemistry, Geophysics, Geosystems, 2021
The compilation of thermodynamic models for geophysical applications is such a tedious and complex process that it is generally impractical for researchers to refit parameters in existing models in light of new constraints.
D. Khan, C. Liebske, J. A. D. Connolly
doaj   +1 more source

Petrology and geochemistry of Eocene volcanic rocks from southeast of Khur (Isfahan province, Central Iran)

open access: yesJournal of Economic Geology, 2022
Introduction Subduction-related magmas are characterized by enrichment of large ion lithophile elements (LILEs), light rare earth elements (LREEs) and depletion in high field strength elements (HFSEs) (Harangi et al., 2007). These geochemical signatures
Paniz Shadman, Ghodrat Torabi
doaj   +1 more source

Petrology and P-T condition of white mica-chlorite schists from Vlasina series - Surdulica, SE Serbia [PDF]

open access: yesGeološki Anali Balkanskoga Poluostrva, 2002
This paper reports structural, textural, petrological and metamorphic data from Vlasina Series of greenschists rocks (as part of the Upper Complex of the Serbo-Macedonian Massif) within which group of white mica-chlorite schist are extensively developed.
Vasković Nada J.
doaj   +1 more source

Constraining Magma Reservoir Conditions by Integrating Thermodynamic Petrological Models and Bulk Resistivity From Magnetotellurics

open access: yesGeochemistry, Geophysics, Geosystems, 2022
Magnetotelluric (MT) data image the bulk resistivity of the subsurface which can be used to infer magma reservoir conditions beneath volcanoes. The bulk resistivity of magma depends primarily on the melt volume fraction, temperature, and water content ...
Darcy Cordell   +3 more
doaj   +1 more source

Varying processes, similar results: How composition influences fragmentation and subsequent feeding of large pyroclastic density currents

open access: yesFrontiers in Earth Science, 2022
Unlike their silicic counterparts, mafic eruptions are known for being on the low-end of the explosivity spectrum with eruption styles commonly ranging from effusive to Hawaiian fire fountaining.
Olivier Bernard   +10 more
doaj   +1 more source

Магнитные и плотностные характеристики магматических пород в районе УАС Академик Вернадский

open access: yesУкраїнський антарктичний журнал, 2020
В результате исследований магнитных и плотностных свойств более чем 500 образцов мезозойских и па­лео­ценовых интрузивных и вулканогенных пород, отобранных в западной части Антарктического полу­ост­рова (район станции Академик Вернадский), получена новая
V. Shpyra   +6 more
doaj   +1 more source

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

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

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