Results 21 to 30 of about 6,499 (231)

Analysis of polar compounds in biodegraded heavy oil by negative ion electrospray Fourier transform ion cyclotron resonance mass spectrometry

open access: yesShiyou shiyan dizhi, 2022
Taking the influence of lithological characteristics differences on the genesis of pores in migmatite reservoirs as the main line, the genesis and characteristics of pores were analyzed from the perspective of the relationship between rock fabric and ...
Erting LI   +7 more
doaj   +1 more source

Remarks about the tectonics of the gneisses of central Baffin Island and the rise of the infrastructure [PDF]

open access: yesBulletin of the Geological Society of Finland, 1972
In this paper some parallels are drawn between gneiss-tectonics of central Baffin Island and some similar localities elsewhere, and some general principles of migmatite tectonics are discussed.
E.H. Kranck
doaj   +1 more source

Basement rocks around the eastern sector of Baranis-Aswan Road, Egypt: Remote sensing data analysis and petrology

open access: yesEgyptian Journal of Remote Sensing and Space Sciences, 2022
The basement rocks around Baranis-Aswan Road, South Eastern Desert of Egypt encompasses a variety of the oldest Pan-African rock units including medium-grade hornblende schist, a variety of gneisses and migmatite as well as medium- to low-grade ...
Mohamed W. Ali-Bik   +2 more
doaj   +1 more source

Double Power-Law in Leucosome Width Distribution: Implications for Recognizing Melt Movement in Migmatites

open access: yesFrontiers in Earth Science, 2020
Leucosome sizes in migmatites has been shown to follow power-law distribution, which is indicative of self-organized criticality governing accumulation and transport of partial melts in anatexis.
Anna Saukko   +4 more
doaj   +1 more source

Exhumation history of the Higher Himalayan Crystalline along Dhauliganga-Goriganga river valleys, NW India: new constraints from fission track analysis [PDF]

open access: yes, 2009
New apatite and zircon fission track data collected from two transects along the Dhauliganga and Goriganga rivers in the NW Himalaya document exhumation of the Higher Himalayan Crystalline units. Despite sharing the same structural configuration and rock
A. Carter   +66 more
core   +1 more source

Petrogenesis and geological significance of migmatitic gneiss in Mulantou area, Hainan Island

open access: yesDizhi lixue xuebao, 2023
In the coastal area of Pujian to Mulantou on Hainan Island, a set of medium to deep metamorphic rocks (Mulantou complex) has been discovered, composed of migmatite, dolomite, shale, and amphibolite, with migmatite being the predominant lithology.
HU Zailong   +5 more
doaj   +1 more source

Low abundance of phytophagous nematodes under invasive exotic Pinus elliottii - enemy release and plant-soil feedbacks. [PDF]

open access: yesNew Phytol
Summary According to the enemy release hypothesis (ERH), the fitness of exotic plants and their capacity to become invasive in their area of introduction may partly be attributable to the loss of their natural enemies. Invasive species may also benefit from modifying soil attributes and thereby creating a positive soil–plant feedback.
Guerrero LSC   +3 more
europepmc   +2 more sources

Procesos anatécticos (LP-HT) y heterogeneidad litológica en el Complejo Migmatítico de Mindelo (NW Portugal) [PDF]

open access: yes, 2014
The Mindelo Migmatitic Complex crops out in the coastal zone north of Porto (Portugal) and consists of a set of migmatitic and granitic lithologies. Field relationships, petrography, geochemistry and isotopic signature of the various lithologies allow ...
A. Dória   +17 more
core   +3 more sources

Petrology, geochemistry, and geochronology of the leucogranites in southernmost Finland [PDF]

open access: yesBulletin of the Geological Society of Finland
In the southernmost part of the Svecofennian province in Finland, leucogranites and migmatites stemming from both igneous and sedimentary protoliths reflect the complex magmatic history of the Svecofennian orogeny between 1.89 and 1.82 Ga.
Anna Saukko   +4 more
doaj   +1 more source

The role of shearing in the Proterozoic development of the Åland archipelago, S.W. Finland [PDF]

open access: yesBulletin of the Geological Society of Finland, 1987
tion of a regional tectonochronology. Folds with E—W axial traces and associated shear zones which are characteristic of the southern Finland migmatite belt (1800 Ma) were refolded during a late phase of NW—SE shearing.
N.P. Branigan
doaj   +1 more source

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