Results 71 to 80 of about 343 (178)

Precambrian crustal evolution and Cretaceous–Palaeogene faulting in West Greenland: The Nordre Strømfjord shear zone and the Arfersiorfik quartz diorite in Arfersiorfik, the Nagssugtoqidian orogen, West Greenland [PDF]

open access: yesGeological Survey of Denmark and Greenland Bulletin, 2006
The Nordre Strømfjord shear zone in the fjord Arfersiorfik, central West Greenland, consists of alternating panels of supracrustal rocks and orthogneisses which together form a vertical zone up to 7 km wide with sinistral transcurrent, ductile ...
Stensgaard, Bo Møller   +3 more
doaj  

Nagssugtoqidian supracrustal metavolcanic rocks of Sarfartûp nunâ, Søndre Strømfjord, central West Greenland

open access: yesRapport Grønlands Geologiske Undersøgelse, 1974
The area discussed here is situated 8 km north of the Sukkertoppen Iskappe and 10 km east of Søndre Strømfjord at 66°27'N, 51°50'W. The work was undertaken during August as part of the programme led by Dr. J. Watterson (see this report). The outcrop of supracrustal metavolcanic rocks is less than 15 km2 in extent.
J.N Diggens, C Talbot
openaire   +2 more sources

Geology and petrology of the kösedağ metavolcanic rocks to the south of Tosya

open access: yes, 2020
Kösedağ metavolkanik kayaları, güney Orta Pontidler'de, Tosya'nın güneyinde KD-GB uzanımlı bir kuşak boyunca yüzlek verirler. Birim metasedimanter litolojilerle ardalanan metavolkanik kayalardan oluşur. Kösedağ Metavolkanikleri kuzeyde Kuzey Anadolu Fay'ı ile sınırlanırken, güneyde Dikmen Formasyonu'nun metakarbonatlarını tektonik ...
openaire   +1 more source

Geology and geochronology of the Magdalena-Madera metamorphic core complex lower plate in the sierras Las Jarillas-El Potrero, northern Sonora

open access: yesRevista Mexicana de Ciencias Geológicas
The area of sierras Las Jarillas-El Potrero in northern Sonora is interpreted as a portion of the lower plate of the Magdalena metamorphic core complex. Rock units that characterize this locality range in age from Jurassic to Eocene.
Teresita Sánchez Navarro   +9 more
doaj   +1 more source

The petrology of the metavolcanic rocks of the Rusty Lake area, Manitoba

open access: yes, 1972
A study of the mineralogical and chemical properties of the metavolcanic rocks of the Rusty Lake greenstone belt was accomplished by means of sampling on a 1000 foot grid. In total, this greenstone belt is exposed over more than 250 square miles.
openaire   +1 more source

Petrogenetic and Tectonic Evolution of the Cariris Velhos Event in the Afogados da Ingazeira Region (PE), Alto Pajeú Terrane, Borborema Province [PDF]

open access: yesGeologia USP. Série Científica, 2011
The Tonian Cariris Velhos event was studied in the area around Afogados da Ingazeira town, Pernambuco State,Northeast Brazil, which is situated within the Alto Pajeú terrane, a Tonian-Ediacaran composite domain of the BorboremaProvince. The exposed rocks
Alberto de Oliveira Sales   +4 more
doaj  

Integrated remote sensing and geochemical data of Shadli mineralized metavolcanics (Egypt): mantle plume-driven magmatism during subduction–rift transition

open access: yesScientific Reports
The Wadi Ranga–Atshan metavolcanic (WRAM) suite in the Southern Eastern Desert of Egypt is part of the Shadli calc-alkaline metavolcanic belt, which is the main crustal part of the Arabian-Nubian Shield (ANS).
Mohamed Zaki Khedr   +8 more
doaj   +1 more source

Progress in the Application of Oxygen Isotopes in the Study of Petrogenesis

open access: yesYankuang ceshi, 2013
Since different types of rocks on the earth have different oxygen isotope compositions, they can be used to discuss the origins of various rocks and it has become a powerful tool for studying petrology.
LI Tie-jun
doaj  

Home - About - Disclaimer - Privacy