Results 61 to 70 of about 188 (175)

The Palaeoproterozoic Komatiite-Picrite Association of Finnish Lapland [PDF]

Journal of Petrology, 2001
The large range of chemical variation within intimately associated highly magnesian volcanic rocks in the Palaeoproterozoic Central Lapland Greenstone Belt prompted the construction of a new classification scheme for MgO-rich volcanic rocks, based on an [Al 2 O 3 ] vs [TiO 2 ] diagram where the axes are the Al 2 O 3 and TiO 2 contents (in ...
openaire   +1 more source

On the melt differentiation in the intermediate chamber (by the example of differentiated intrusives of the western slope of the Southern Urals)

Georesursy
The article provides materials on the analysis of the chemical composition of silicates and aluminosilicates that make up the differentiated body of the Misaelga complex, which made it possible by calculation methods to restore the thermobaric parameters
S. G. Kovalev, S. S. Kovalev
doaj   +1 more source

Trace element partitioning in basaltic systems as a function of oxygen fugacity. [PDF]

Contrib Mineral Petrol, 2023
Leuthold J, Blundy J, Ulmer P.
europepmc   +1 more source

Alpine-style nappes thrust over ancient North China continental margin demonstrate large Archean horizontal plate motions. [PDF]

Nat Commun, 2021
Zhong Y, Kusky T, Wang L, Polat A, Liu X, Peng Y, Luan Z, Wang C, Wang J, Deng H.   +9 more
europepmc   +1 more source

Paleo-Asian Ocean Ridge Subduction: Evidence from Volcanic Rocks in the Fuyun–Qinghe Area, Southern Margin of the Chinese Altay

Applied Sciences
The Chinese Altay is located in the western segment of the Central Asian Orogenic Belt (CAOB) and preserves critical records of the Paleo-Asian Ocean (PAO) Plate evolution during the Paleozoic era.
Jixu Liu, Cui Liu, Qing Liu, Zhaohua Luo, Yong Liu, Chenghao Zhou, Xu Guo, Xianghui Yu, Miao Wang   +8 more
doaj   +1 more source

IV.—On the Occurrence of a Variety of Picrite (Scyelite) in Sark [PDF]

Geological Magazine, 1889
Last summer I had the pleasure of passing a fortnight in the Channel Islands under the guidance of my friend the Rev. E. Hill, who has done so much to elucidate their geology. During our short visit to Sark we spent some hours in the beautiful little cove called Port du Moulin, examining the interesting sections of the hornblende-schist and underlying ...
openaire   +2 more sources

Linking the Wrangellia flood basalts to the Galápagos hotspot. [PDF]

Sci Rep, 2021
Shellnutt JG, Dostal J, Lee TY.
europepmc   +1 more source

Lithostratigraphy, geology and geochemistry of the volcanic rocks of the Maligât Formation and associated intrusions on Disko and Nuussuaq, Paleocene of West Greenland

Geological Survey of Denmark and Greenland Bulletin, 2018
The Paleocene volcanic rocks in the Nuussuaq Basin on Disko and Nuussuaq comprise the picritic Vaigat Formation (c. 62–61 Ma) and the overlying basaltic Maligât Formation (c. 60 Ma).
Asger Ken Pedersen, Lotte Melchior Larsen, Gunver Krarup Pedersen   +2 more
doaj  

Braided peridotite sills and metasomatism in the Rum Layered Suite, Scotland. [PDF]

Contrib Mineral Petrol, 2020
Hepworth LN, Kaufmann FED, Hecht L, Gertisser R, O'Driscoll B.   +4 more
europepmc   +1 more source

Deep mantle origin of large igneous provinces and komatiites. [PDF]

Sci Adv, 2022
Pierru R, Andrault D, Manthilake G, Monteux J, Devidal JL, Guignot N, King A, Henry L.   +7 more
europepmc   +1 more source